woops

Co-authored-by: Jamie V <jamie.j.vigliotta@nasa.gov>

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2.1
 executors:
   pw-focal-development:
     docker:
-      - image: mcr.microsoft.com/playwright:v1.25.2-focal
+      - image: mcr.microsoft.com/playwright:v1.29.0-focal
     environment:
       NODE_ENV: development # Needed to ensure 'dist' folder created and devDependencies installed
       PERCY_POSTINSTALL_BROWSER: 'true' # Needed to store the percy browser in cache deps

.github/dependabot.yml

@@ -13,14 +13,18 @@ updates:
       - "pr:daveit"
       - "pr:platform"
     ignore:
-      - dependency-name: "@playwright/test" #We have to source the playwright container which is not detected by Dependabot
-      - dependency-name: "playwright-core" #We have to source the playwright container which is not detected by Dependabot
-      - dependency-name: "@babel/eslint-parser" #Lots of noise in these type patch releases.
+      #We have to source the playwright container which is not detected by Dependabot
+      - dependency-name: "@playwright/test"
+      - dependency-name: "playwright-core"
+      #Lots of noise in these type patch releases.
+      - dependency-name: "@babel/eslint-parser"
         update-types: ["version-update:semver-patch"] 
-      - dependency-name: "eslint-plugin-vue" #Lots of noise in these type patch releases.  
+      - dependency-name: "eslint-plugin-vue"
         update-types: ["version-update:semver-patch"]
       - dependency-name: "babel-loader"
         update-types: ["version-update:semver-patch"]
+      - dependency-name: "sinon"
+        update-types: ["version-update:semver-patch"]
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:

.github/workflows/e2e-couchdb.yml

@@ -23,7 +23,7 @@ jobs:
       - uses: actions/setup-node@v3
         with:
           node-version: '16'
-      - run: npx playwright@1.25.2 install
+      - run: npx playwright@1.29.0 install
       - run: npm install
       - run: sh src/plugins/persistence/couch/replace-localstorage-with-couchdb-indexhtml.sh
       - run: npm run test:e2e:couchdb

.github/workflows/e2e-pr.yml

@@ -30,7 +30,7 @@ jobs:
       - uses: actions/setup-node@v3
         with:
           node-version: '16'
-      - run: npx playwright@1.25.2 install
+      - run: npx playwright@1.29.0 install
       - run: npx playwright install chrome-beta
       - run: npm install
       - run: npm run test:e2e:full

.github/workflows/npm-prerelease.yml

@@ -16,7 +16,11 @@ jobs:
         with:
           node-version: 16
       - run: npm install
-      - run: npm test
+      - run: |
+          echo "//registry.npmjs.org/:_authToken=$NODE_AUTH_TOKEN" >> ~/.npmrc
+          npm whoami
+          npm publish --access=public --tag unstable openmct
+      # - run: npm test
 
   publish-npm-prerelease:
     needs: build
@@ -28,6 +32,6 @@ jobs:
           node-version: 16
           registry-url: https://registry.npmjs.org/
       - run: npm install
-      - run: npm publish --access public --tag unstable
+      - run: npm publish --access=public --tag unstable
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.npmignore

@@ -22,3 +22,9 @@
 !index.html
 !openmct.js
 !SECURITY.md
+
+# Add e2e tests to npm package
+!/e2e/**/*
+
+# ... except our test-data folder files.
+/e2e/test-data/*.json

.webpack/webpack.common.js

@@ -0,0 +1,174 @@
+/* global __dirname module */
+
+/*
+This is the OpenMCT common webpack file. It is imported by the other three webpack configurations:
+ - webpack.prod.js - the production configuration for OpenMCT (default)
+ - webpack.dev.js - the development configuration for OpenMCT
+ - webpack.coverage.js - imports webpack.dev.js and adds code coverage
+There are separate npm scripts to use these configurations, though simply running `npm install`
+will use the default production configuration.
+*/
+const path = require("path");
+const packageDefinition = require("../package.json");
+const CopyWebpackPlugin = require("copy-webpack-plugin");
+const webpack = require("webpack");
+const MiniCssExtractPlugin = require("mini-css-extract-plugin");
+const { VueLoaderPlugin } = require("vue-loader");
+const projectRootDir = path.resolve(__dirname, "..");
+let gitRevision = "error-retrieving-revision";
+let gitBranch = "error-retrieving-branch";
+
+try {
+    gitRevision = require("child_process")
+        .execSync("git rev-parse HEAD")
+        .toString()
+        .trim();
+        gitBranch = require("child_process")
+        .execSync("git rev-parse --abbrev-ref HEAD")
+        .toString()
+        .trim();
+} catch (err) {
+    console.warn(err);
+}
+
+
+/** @type {import('webpack').Configuration} */
+const config = {
+    context: projectRootDir,
+    entry: {
+        openmct: "./openmct.js",
+        generatorWorker: "./example/generator/generatorWorker.js",
+        couchDBChangesFeed:
+            "./src/plugins/persistence/couch/CouchChangesFeed.js",
+        inMemorySearchWorker: "./src/api/objects/InMemorySearchWorker.js",
+        espressoTheme: "./src/plugins/themes/espresso-theme.scss",
+        snowTheme: "./src/plugins/themes/snow-theme.scss"
+    },
+    output: {
+        globalObject: "this",
+        filename: "[name].js",
+        path: path.resolve(projectRootDir, "dist"),
+        library: "openmct",
+        libraryTarget: "umd",
+        publicPath: "",
+        hashFunction: "xxhash64",
+        clean: true
+    },
+    resolve: {
+        alias: {
+            "@": path.join(projectRootDir, "src"),
+            legacyRegistry: path.join(projectRootDir, "src/legacyRegistry"),
+            saveAs: "file-saver/src/FileSaver.js",
+            csv: "comma-separated-values",
+            EventEmitter: "eventemitter3",
+            bourbon: "bourbon.scss",
+            "plotly-basic": "plotly.js-basic-dist",
+            "plotly-gl2d": "plotly.js-gl2d-dist",
+            "d3-scale": path.join(
+                projectRootDir,
+                "node_modules/d3-scale/dist/d3-scale.min.js"
+            ),
+            printj: path.join(
+                projectRootDir,
+                "node_modules/printj/dist/printj.min.js"
+            ),
+            styles: path.join(projectRootDir, "src/styles"),
+            MCT: path.join(projectRootDir, "src/MCT"),
+            testUtils: path.join(projectRootDir, "src/utils/testUtils.js"),
+            objectUtils: path.join(
+                projectRootDir,
+                "src/api/objects/object-utils.js"
+            ),
+            "kdbush": path.join(projectRootDir, "node_modules/kdbush/kdbush.min.js"),
+            utils: path.join(projectRootDir, "src/utils")
+        }
+    },
+    plugins: [
+        new webpack.DefinePlugin({
+            __OPENMCT_VERSION__: `'${packageDefinition.version}'`,
+            __OPENMCT_BUILD_DATE__: `'${new Date()}'`,
+            __OPENMCT_REVISION__: `'${gitRevision}'`,
+            __OPENMCT_BUILD_BRANCH__: `'${gitBranch}'`,
+        }),
+        new VueLoaderPlugin(),
+        new CopyWebpackPlugin({
+            patterns: [
+                {
+                    from: "src/images/favicons",
+                    to: "favicons"
+                },
+                {
+                    from: "./index.html",
+                    transform: function (content) {
+                        return content.toString().replace(/dist\//g, "");
+                    }
+                },
+                {
+                    from: "src/plugins/imagery/layers",
+                    to: "imagery"
+                }
+            ]
+        }),
+        new MiniCssExtractPlugin({
+            filename: "[name].css",
+            chunkFilename: "[name].css"
+        })
+    ],
+    module: {
+        rules: [
+            {
+                test: /\.(sc|sa|c)ss$/,
+                use: [
+                    MiniCssExtractPlugin.loader,
+                    {
+                        loader: "css-loader"
+                    },
+                    {
+                        loader: "resolve-url-loader"
+                    },
+                    {
+                        loader: "sass-loader",
+                        options: { sourceMap: true }
+                    }
+                ]
+            },
+            {
+                test: /\.vue$/,
+                use: "vue-loader"
+            },
+            {
+                test: /\.html$/,
+                type: "asset/source"
+            },
+            {
+                test: /\.(jpg|jpeg|png|svg)$/,
+                type: "asset/resource",
+                generator: {
+                    filename: "images/[name][ext]"
+                }
+            },
+            {
+                test: /\.ico$/,
+                type: "asset/resource",
+                generator: {
+                    filename: "icons/[name][ext]"
+                }
+            },
+            {
+                test: /\.(woff|woff2?|eot|ttf)$/,
+                type: "asset/resource",
+                generator: {
+                    filename: "fonts/[name][ext]"
+                }
+            }
+        ]
+    },
+    performance: {
+        // We should eventually consider chunking to decrease
+        // these values
+        maxEntrypointSize: 27000000,
+        maxAssetSize: 27000000
+    }
+};
+
+module.exports = config;

.webpack/webpack.coverage.js

@@ -6,9 +6,9 @@ OpenMCT Continuous Integration servers use this configuration to add code covera
 information to pull requests.
 */
 
-const config = require('./webpack.dev');
+const config = require("./webpack.dev");
 // eslint-disable-next-line no-undef
-const CI = process.env.CI === 'true';
+const CI = process.env.CI === "true";
 
 config.devtool = CI ? false : undefined;
 
@@ -18,13 +18,18 @@ config.module.rules.push({
     test: /\.js$/,
     exclude: /(Spec\.js$)|(node_modules)/,
     use: {
-        loader: 'babel-loader',
+        loader: "babel-loader",
         options: {
             retainLines: true,
             // eslint-disable-next-line no-undef
-            plugins: [['babel-plugin-istanbul', {
-                extension: ['.js', '.vue']
-            }]]
+            plugins: [
+                [
+                    "babel-plugin-istanbul",
+                    {
+                        extension: [".js", ".vue"]
+                    }
+                ]
+            ]
         }
     }
 });

.webpack/webpack.dev.js

@@ -5,28 +5,29 @@ This configuration should be used for development purposes. It contains full sou
 devServer (which be invoked using by `npm start`), and a non-minified Vue.js distribution.
 If OpenMCT is to be used for a production server, use webpack.prod.js instead.
 */
-const { merge } = require('webpack-merge');
-const common = require('./webpack.common');
+const path = require("path");
+const webpack = require("webpack");
+const { merge } = require("webpack-merge");
 
-const path = require('path');
-const webpack = require('webpack');
+const common = require("./webpack.common");
+const projectRootDir = path.resolve(__dirname, "..");
 
 module.exports = merge(common, {
-    mode: 'development',
+    mode: "development",
     watchOptions: {
         // Since we use require.context, webpack is watching the entire directory.
         // We need to exclude any files we don't want webpack to watch.
         // See: https://webpack.js.org/configuration/watch/#watchoptions-exclude
         ignored: [
-            '**/{node_modules,dist,docs,e2e}', // All files in node_modules, dist, docs, e2e,
-            '**/{*.yml,Procfile,webpack*.js,babel*.js,package*.json,tsconfig.json}', // Config files
-            '**/*.{sh,md,png,ttf,woff,svg}', // Non source files
-            '**/.*' // dotfiles and dotfolders
+            "**/{node_modules,dist,docs,e2e}", // All files in node_modules, dist, docs, e2e,
+            "**/{*.yml,Procfile,webpack*.js,babel*.js,package*.json,tsconfig.json}", // Config files
+            "**/*.{sh,md,png,ttf,woff,svg}", // Non source files
+            "**/.*" // dotfiles and dotfolders
         ]
     },
     resolve: {
         alias: {
-            "vue": path.join(__dirname, "node_modules/vue/dist/vue.js")
+            vue: path.join(projectRootDir, "node_modules/vue/dist/vue.js")
         }
     },
     plugins: [
@@ -34,20 +35,20 @@ module.exports = merge(common, {
             __OPENMCT_ROOT_RELATIVE__: '"dist/"'
         })
     ],
-    devtool: 'eval-source-map',
+    devtool: "eval-source-map",
     devServer: {
         devMiddleware: {
             writeToDisk: (filePathString) => {
                 const filePath = path.parse(filePathString);
-                const shouldWrite = !(filePath.base.includes('hot-update'));
+                const shouldWrite = !filePath.base.includes("hot-update");
 
                 return shouldWrite;
             }
         },
-        watchFiles: ['**/*.css'],
+        watchFiles: ["**/*.css"],
         static: {
-            directory: path.join(__dirname, '/dist'),
-            publicPath: '/dist',
+            directory: path.join(__dirname, "..", "/dist"),
+            publicPath: "/dist",
             watch: false
         },
         client: {

.webpack/webpack.prod.js

@@ -4,17 +4,18 @@
 This configuration should be used for production installs.
 It is the default webpack configuration.
 */
-const { merge } = require('webpack-merge');
-const common = require('./webpack.common');
+const path = require("path");
+const webpack = require("webpack");
+const { merge } = require("webpack-merge");
 
-const path = require('path');
-const webpack = require('webpack');
+const common = require("./webpack.common");
+const projectRootDir = path.resolve(__dirname, "..");
 
 module.exports = merge(common, {
-    mode: 'production',
+    mode: "production",
     resolve: {
         alias: {
-            "vue": path.join(__dirname, "node_modules/vue/dist/vue.min.js")
+            vue: path.join(projectRootDir, "node_modules/vue/dist/vue.min.js")
         }
     },
     plugins: [
@@ -22,5 +23,5 @@ module.exports = merge(common, {
             __OPENMCT_ROOT_RELATIVE__: '""'
         })
     ],
-    devtool: 'eval-source-map'
+    devtool: "source-map"
 });

CONTRIBUTING.md

@@ -10,7 +10,7 @@ accept changes from external contributors.
 
 The short version:
 
-1. Write your contribution or describe your idea in the form of an [GitHub issue](https://github.com/nasa/openmct/issues/new/choose) or [Starting a GitHub Discussion](https://github.com/nasa/openmct/discussions)
+1. Write your contribution or describe your idea in the form of a [GitHub issue](https://github.com/nasa/openmct/issues/new/choose) or [start a GitHub discussion](https://github.com/nasa/openmct/discussions).
 2. Make sure your contribution meets code, test, and commit message
    standards as described below.
 3. Submit a pull request from a topic branch back to `master`. Include a check

README.md

@@ -6,10 +6,8 @@ Please visit our [Official Site](https://nasa.github.io/openmct/) and [Getting S
 
 Once you've created something amazing with Open MCT, showcase your work in our GitHub Discussions [Show and Tell](https://github.com/nasa/openmct/discussions/categories/show-and-tell) section. We love seeing unique and wonderful implementations of Open MCT!
 
-## See Open MCT in Action
+![Screen Shot 2022-11-23 at 9 51 36 AM](https://user-images.githubusercontent.com/4215777/203617422-4d912bfc-766f-4074-8324-409d9bbe7c05.png)
 
-Try Open MCT now with our [live demo](https://openmct-demo.herokuapp.com/).
-![Demo](https://nasa.github.io/openmct/static/res/images/Open-MCT.Browse.Layout.Mars-Weather-1.jpg)
 
 ## Building and Running Open MCT Locally
 

e2e/README.md

@@ -8,7 +8,7 @@ This document is designed to capture on the What, Why, and How's of writing and
 
 1. [Getting Started](#getting-started)
 2. [Types of Testing](#types-of-e2e-testing)
-3. [Architecture](#architecture)
+3. [Architecture](#test-architecture-and-ci)
 
 ## Getting Started
 
@@ -276,14 +276,36 @@ Skipping based on browser version (Rarely used): <https://github.com/microsoft/p
   - Leverage `await page.goto('./', { waitUntil: 'networkidle' });`
   - Avoid repeated setup to test to test a single assertion. Write longer tests with multiple soft assertions.
 
-### How to write a great test (TODO)
+### How to write a great test (WIP)
+
+- Use our [App Actions](./appActions.js) for performing common actions whenever applicable.
+- If you create an object outside of using the `createDomainObjectWithDefaults` App Action, make sure to fill in the 'Notes' section of your object with `page.testNotes`:
+
+  ```js
+  // Fill the "Notes" section with information about the
+  // currently running test and its project.
+  const { testNotes } = page;
+  const notesInput = page.locator('form[name="mctForm"] #notes-textarea');
+  await notesInput.fill(testNotes);
+  ```
 
 #### How to write a great visual test (TODO)
 
+#### How to write a great network test
+
+- Where possible, it is best to mock out third-party network activity to ensure we are testing application behavior of Open MCT.
+- It is best to be as specific as possible about the expected network request/response structures in creating your mocks.
+- Make sure to only mock requests which are relevant to the specific behavior being tested.
+- Where possible, network requests and responses should be treated in an order-agnostic manner, as the order in which certain requests/responses happen is dynamic and subject to change.
+
+Some examples of mocking network responses in regards to CouchDB can be found in our [couchdb.e2e.spec.js](./tests/functional/couchdb.e2e.spec.js) test file.
+
 ### Best Practices
 
 For now, our best practices exist as self-tested, living documentation in our [exampleTemplate.e2e.spec.js](./tests/framework/exampleTemplate.e2e.spec.js) file.
 
+For best practices with regards to mocking network responses, see our [couchdb.e2e.spec.js](./tests/functional/couchdb.e2e.spec.js) file.
+
 ### Tips & Tricks (TODO)
 
 The following contains a list of tips and tricks which don't exactly fit into a FAQ or Best Practices doc.
@@ -378,3 +400,23 @@ A single e2e test in Open MCT is extended to run:
 - Tests won't start because 'Error: <http://localhost:8080/># is already used...'
 This error will appear when running the tests locally. Sometimes, the webserver is left in an orphaned state and needs to be cleaned up. To clear up the orphaned webserver, execute the following from your Terminal:
 ```lsof -n -i4TCP:8080 | awk '{print$2}' | tail -1 | xargs kill -9```
+
+### Upgrading Playwright
+
+In order to upgrade from one version of Playwright to another, the version should be updated in several places in both `openmct` and `openmct-yamcs` repos. An easy way to identify these locations is to search for the current version in all files and find/replace.
+
+For reference, all of the locations where the version should be updated are listed below:
+
+#### **In `openmct`:**
+
+- `package.json`
+  - Both packages `@playwright/test` and `playwright-core` should be updated to the same target version.
+- `.circleci/config.yml`
+- `.github/workflows/e2e-couchdb.yml`
+- `.github/workflows/e2e-pr.yml`
+
+#### **In `openmct-yamcs`:**
+
+- `package.json`
+  - `@playwright/test` should be updated to the target version.
+- `.github/workflows/yamcs-quickstart-e2e.yml`

e2e/appActions.js

@@ -45,7 +45,16 @@
  * @property {string} url the relative url to the object (for use with `page.goto()`)
  */
 
+/**
+ * Defines parameters to be used in the creation of a notification.
+ * @typedef {Object} CreateNotificationOptions
+ * @property {string} message the message
+ * @property {'info' | 'alert' | 'error'} severity the severity
+ * @property {import('../src/api/notifications/NotificationAPI').NotificationOptions} [notificationOptions] additional options
+ */
+
 const Buffer = require('buffer').Buffer;
+const genUuid = require('uuid').v4;
 
 /**
  * This common function creates a domain object with the default options. It is the preferred way of creating objects
@@ -56,6 +65,10 @@ const Buffer = require('buffer').Buffer;
  * @returns {Promise<CreatedObjectInfo>} An object containing information about the newly created domain object.
  */
 async function createDomainObjectWithDefaults(page, { type, name, parent = 'mine' }) {
+    if (!name) {
+        name = `${type}:${genUuid()}`;
+    }
+
     const parentUrl = await getHashUrlToDomainObject(page, parent);
 
     // Navigate to the parent object. This is necessary to create the object
@@ -67,13 +80,18 @@ async function createDomainObjectWithDefaults(page, { type, name, parent = 'mine
     await page.click('button:has-text("Create")');
 
     // Click the object specified by 'type'
-    await page.click(`li:text("${type}")`);
+    await page.click(`li[role='menuitem']:text("${type}")`);
 
     // Modify the name input field of the domain object to accept 'name'
-    if (name) {
-        const nameInput = page.locator('form[name="mctForm"] .first input[type="text"]');
-        await nameInput.fill("");
-        await nameInput.fill(name);
+    const nameInput = page.locator('form[name="mctForm"] .first input[type="text"]');
+    await nameInput.fill("");
+    await nameInput.fill(name);
+
+    if (page.testNotes) {
+        // Fill the "Notes" section with information about the
+        // currently running test and its project.
+        const notesInput = page.locator('form[name="mctForm"] #notes-textarea');
+        await notesInput.fill(page.testNotes);
     }
 
     // Click OK button and wait for Navigate event
@@ -96,18 +114,39 @@ async function createDomainObjectWithDefaults(page, { type, name, parent = 'mine
     }
 
     return {
-        name: name || `Unnamed ${type}`,
-        uuid: uuid,
+        name,
+        uuid,
         url: objectUrl
     };
 }
 
+/**
+ * Generate a notification with the given options.
+ * @param {import('@playwright/test').Page} page
+ * @param {CreateNotificationOptions} createNotificationOptions
+ */
+async function createNotification(page, createNotificationOptions) {
+    await page.evaluate((_createNotificationOptions) => {
+        const { message, severity, options } = _createNotificationOptions;
+        const notificationApi = window.openmct.notifications;
+        if (severity === 'info') {
+            notificationApi.info(message, options);
+        } else if (severity === 'alert') {
+            notificationApi.alert(message, options);
+        } else {
+            notificationApi.error(message, options);
+        }
+    }, createNotificationOptions);
+}
+
 /**
  * @param {import('@playwright/test').Page} page
  * @param {string} name
  */
 async function expandTreePaneItemByName(page, name) {
-    const treePane = page.locator('#tree-pane');
+    const treePane = page.getByRole('tree', {
+        name: 'Main Tree'
+    });
     const treeItem = treePane.locator(`role=treeitem[expanded=false][name=/${name}/]`);
     const expandTriangle = treeItem.locator('.c-disclosure-triangle');
     await expandTriangle.click();
@@ -181,6 +220,24 @@ async function openObjectTreeContextMenu(page, url) {
     });
 }
 
+/**
+ * Expands the entire object tree (every expandable tree item).
+ * @param {import('@playwright/test').Page} page
+ * @param {"Main Tree" | "Create Modal Tree"} [treeName="Main Tree"]
+ */
+async function expandEntireTree(page, treeName = "Main Tree") {
+    const treeLocator = page.getByRole('tree', {
+        name: treeName
+    });
+    const collapsedTreeItems = treeLocator.getByRole('treeitem', {
+        expanded: false
+    }).locator('span.c-disclosure-triangle.is-enabled');
+
+    while (await collapsedTreeItems.count() > 0) {
+        await collapsedTreeItems.nth(0).click();
+    }
+}
+
 /**
  * Gets the UUID of the currently focused object by parsing the current URL
  * and returning the last UUID in the path.
@@ -323,7 +380,9 @@ async function setEndOffset(page, offset) {
 // eslint-disable-next-line no-undef
 module.exports = {
     createDomainObjectWithDefaults,
+    createNotification,
     expandTreePaneItemByName,
+    expandEntireTree,
     createPlanFromJSON,
     openObjectTreeContextMenu,
     getHashUrlToDomainObject,

e2e/helper/addInitExampleUser.js

@@ -0,0 +1,27 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2023, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+// This should be used to install the Example User
+document.addEventListener('DOMContentLoaded', () => {
+    const openmct = window.openmct;
+    openmct.install(openmct.plugins.example.ExampleUser());
+});

e2e/helper/addInitFileInputObject.js

@@ -0,0 +1,76 @@
+class DomainObjectViewProvider {
+    constructor(openmct) {
+        this.key = 'doViewProvider';
+        this.name = 'Domain Object View Provider';
+        this.openmct = openmct;
+    }
+
+    canView(domainObject) {
+        return domainObject.type === 'imageFileInput'
+            || domainObject.type === 'jsonFileInput';
+    }
+
+    view(domainObject, objectPath) {
+        let content;
+
+        return {
+            show: function (element) {
+                const body = domainObject.selectFile.body;
+                const type = typeof body;
+
+                content = document.createElement('div');
+                content.id = 'file-input-type';
+                content.textContent = JSON.stringify(type);
+                element.appendChild(content);
+            },
+            destroy: function (element) {
+                element.removeChild(content);
+                content = undefined;
+            }
+        };
+    }
+}
+
+document.addEventListener('DOMContentLoaded', () => {
+    const openmct = window.openmct;
+
+    openmct.types.addType('jsonFileInput', {
+        key: 'jsonFileInput',
+        name: "JSON File Input Object",
+        creatable: true,
+        form: [
+            {
+                name: 'Upload File',
+                key: 'selectFile',
+                control: 'file-input',
+                required: true,
+                text: 'Select File...',
+                type: 'application/json',
+                property: [
+                    "selectFile"
+                ]
+            }
+        ]
+    });
+
+    openmct.types.addType('imageFileInput', {
+        key: 'imageFileInput',
+        name: "Image File Input Object",
+        creatable: true,
+        form: [
+            {
+                name: 'Upload File',
+                key: 'selectFile',
+                control: 'file-input',
+                required: true,
+                text: 'Select File...',
+                type: 'image/*',
+                property: [
+                    "selectFile"
+                ]
+            }
+        ]
+    });
+
+    openmct.objectViews.addProvider(new DomainObjectViewProvider(openmct));
+});

e2e/helper/addInitOperatorStatus.js

@@ -0,0 +1,27 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2023, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+// This should be used to install the Operator Status
+document.addEventListener('DOMContentLoaded', () => {
+    const openmct = window.openmct;
+    openmct.install(openmct.plugins.OperatorStatus());
+});

e2e/helper/notebookUtils.js

@@ -20,6 +20,8 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
+const { createDomainObjectWithDefaults } = require('../appActions');
+
 const NOTEBOOK_DROP_AREA = '.c-notebook__drag-area';
 
 /**
@@ -38,24 +40,17 @@ async function enterTextEntry(page, text) {
 /**
  * @param {import('@playwright/test').Page} page
  */
-async function dragAndDropEmbed(page, myItemsFolderName) {
-    // Click button:has-text("Create")
-    await page.locator('button:has-text("Create")').click();
-    // Click li:has-text("Sine Wave Generator")
-    await page.locator('li:has-text("Sine Wave Generator")').click();
-    // Click form[name="mctForm"] >> text=My Items
-    await page.locator(`form[name="mctForm"] >> text=${myItemsFolderName}`).click();
-    // Click text=OK
-    await page.locator('text=OK').click();
-    // Click text=Open MCT My Items >> span >> nth=3
-    await page.locator(`text=Open MCT ${myItemsFolderName} >> span`).nth(3).click();
-    // Click text=Unnamed CUSTOM_NAME
-    await Promise.all([
-        page.waitForNavigation(),
-        page.locator('text=Unnamed CUSTOM_NAME').click()
-    ]);
-
-    await page.dragAndDrop('text=UNNAMED SINE WAVE GENERATOR', NOTEBOOK_DROP_AREA);
+async function dragAndDropEmbed(page, notebookObject) {
+    // Create example telemetry object
+    const swg = await createDomainObjectWithDefaults(page, {
+        type: "Sine Wave Generator"
+    });
+    // Navigate to notebook
+    await page.goto(notebookObject.url);
+    // Expand the tree to reveal the notebook
+    await page.click('button[title="Show selected item in tree"]');
+    // Drag and drop the SWG into the notebook
+    await page.dragAndDrop(`text=${swg.name}`, NOTEBOOK_DROP_AREA);
 }
 
 // eslint-disable-next-line no-undef

e2e/pluginFixtures.js

@@ -126,13 +126,21 @@ exports.test = test.extend({
     // This should follow in the Project's configuration. Can be set to 'snow' in playwright config.js
     theme: [theme, { option: true }],
     // eslint-disable-next-line no-shadow
-    page: async ({ page, theme }, use) => {
+    page: async ({ page, theme }, use, testInfo) => {
         // eslint-disable-next-line playwright/no-conditional-in-test
         if (theme === 'snow') {
             //inject snow theme
             await page.addInitScript({ path: path.join(__dirname, './helper', './useSnowTheme.js') });
         }
 
+        // Attach info about the currently running test and its project.
+        // This will be used by appActions to fill in the created
+        // domain object's notes.
+        page.testNotes = [
+            `${testInfo.titlePath.join('\n')}`,
+            `${testInfo.project.name}`
+        ].join('\n');
+
         await use(page);
     },
     myItemsFolderName: [myItemsFolderName, { option: true }],
@@ -140,22 +148,5 @@ exports.test = test.extend({
     openmctConfig: async ({ myItemsFolderName }, use) => {
         await use({ myItemsFolderName });
     }
-    // objectCreateOptions: [objectCreateOptions, {option: true}],
-    // eslint-disable-next-line no-shadow
-    // domainObject: [async ({ page, objectCreateOptions }, use) => {
-    //     // FIXME: This is a false-positive caused by a bug in the eslint-plugin-playwright rule.
-    //     // eslint-disable-next-line playwright/no-conditional-in-test
-    //     if (objectCreateOptions === null) {
-    //         await use(page);
-
-    //         return;
-    //     }
-
-    //     //Go to baseURL
-    //     await page.goto('./', { waitUntil: 'networkidle' });
-
-    //     const uuid = await getOrCreateDomainObject(page, objectCreateOptions);
-    //     await use({ uuid });
-    // }, { auto: true }]
 });
 exports.expect = expect;

e2e/tests/framework/appActions.e2e.spec.js

@@ -20,8 +20,8 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
-const { test, expect } = require('../../baseFixtures.js');
-const { createDomainObjectWithDefaults } = require('../../appActions.js');
+const { test, expect } = require('../../pluginFixtures.js');
+const { createDomainObjectWithDefaults, createNotification, expandEntireTree } = require('../../appActions.js');
 
 test.describe('AppActions', () => {
     test('createDomainObjectsWithDefaults', async ({ page }) => {
@@ -49,12 +49,12 @@ test.describe('AppActions', () => {
                 parent: e2eFolder.uuid
             });
 
-            await page.goto(timer1.url, { waitUntil: 'networkidle' });
-            await expect(page.locator('.l-browse-bar__object-name')).toHaveText('Timer Foo');
-            await page.goto(timer2.url, { waitUntil: 'networkidle' });
-            await expect(page.locator('.l-browse-bar__object-name')).toHaveText('Timer Bar');
-            await page.goto(timer3.url, { waitUntil: 'networkidle' });
-            await expect(page.locator('.l-browse-bar__object-name')).toHaveText('Timer Baz');
+            await page.goto(timer1.url);
+            await expect(page.locator('.l-browse-bar__object-name')).toHaveText(timer1.name);
+            await page.goto(timer2.url);
+            await expect(page.locator('.l-browse-bar__object-name')).toHaveText(timer2.name);
+            await page.goto(timer3.url);
+            await expect(page.locator('.l-browse-bar__object-name')).toHaveText(timer3.name);
         });
 
         await test.step('Create multiple nested objects in a row', async () => {
@@ -73,16 +73,93 @@ test.describe('AppActions', () => {
                 name: 'Folder Baz',
                 parent: folder2.uuid
             });
-            await page.goto(folder1.url, { waitUntil: 'networkidle' });
-            await expect(page.locator('.l-browse-bar__object-name')).toHaveText('Folder Foo');
-            await page.goto(folder2.url, { waitUntil: 'networkidle' });
-            await expect(page.locator('.l-browse-bar__object-name')).toHaveText('Folder Bar');
-            await page.goto(folder3.url, { waitUntil: 'networkidle' });
-            await expect(page.locator('.l-browse-bar__object-name')).toHaveText('Folder Baz');
+            await page.goto(folder1.url);
+            await expect(page.locator('.l-browse-bar__object-name')).toHaveText(folder1.name);
+            await page.goto(folder2.url);
+            await expect(page.locator('.l-browse-bar__object-name')).toHaveText(folder2.name);
+            await page.goto(folder3.url);
+            await expect(page.locator('.l-browse-bar__object-name')).toHaveText(folder3.name);
 
             expect(folder1.url).toBe(`${e2eFolder.url}/${folder1.uuid}`);
             expect(folder2.url).toBe(`${e2eFolder.url}/${folder1.uuid}/${folder2.uuid}`);
             expect(folder3.url).toBe(`${e2eFolder.url}/${folder1.uuid}/${folder2.uuid}/${folder3.uuid}`);
         });
     });
+    test("createNotification", async ({ page }) => {
+        await page.goto('./', { waitUntil: 'networkidle' });
+        await createNotification(page, {
+            message: 'Test info notification',
+            severity: 'info'
+        });
+        await expect(page.locator('.c-message-banner__message')).toHaveText('Test info notification');
+        await expect(page.locator('.c-message-banner')).toHaveClass(/info/);
+        await page.locator('[aria-label="Dismiss"]').click();
+        await createNotification(page, {
+            message: 'Test alert notification',
+            severity: 'alert'
+        });
+        await expect(page.locator('.c-message-banner__message')).toHaveText('Test alert notification');
+        await expect(page.locator('.c-message-banner')).toHaveClass(/alert/);
+        await page.locator('[aria-label="Dismiss"]').click();
+        await createNotification(page, {
+            message: 'Test error notification',
+            severity: 'error'
+        });
+        await expect(page.locator('.c-message-banner__message')).toHaveText('Test error notification');
+        await expect(page.locator('.c-message-banner')).toHaveClass(/error/);
+        await page.locator('[aria-label="Dismiss"]').click();
+    });
+    test('expandEntireTree', async ({ page }) => {
+        await page.goto('./', { waitUntil: 'networkidle' });
+
+        const rootFolder = await createDomainObjectWithDefaults(page, {
+            type: 'Folder'
+        });
+        const folder1 = await createDomainObjectWithDefaults(page, {
+            type: 'Folder',
+            parent: rootFolder.uuid
+        });
+
+        await createDomainObjectWithDefaults(page, {
+            type: 'Clock',
+            parent: folder1.uuid
+        });
+        const folder2 = await createDomainObjectWithDefaults(page, {
+            type: 'Folder',
+            parent: folder1.uuid
+        });
+        await createDomainObjectWithDefaults(page, {
+            type: 'Folder',
+            parent: folder1.uuid
+        });
+        await createDomainObjectWithDefaults(page, {
+            type: 'Display Layout',
+            parent: folder2.uuid
+        });
+        await createDomainObjectWithDefaults(page, {
+            type: 'Folder',
+            parent: folder2.uuid
+        });
+
+        await page.goto('./#/browse/mine');
+        await expandEntireTree(page);
+        const treePane = page.getByRole('tree', {
+            name: "Main Tree"
+        });
+        const treePaneCollapsedItems = treePane.getByRole('treeitem', { expanded: false });
+        expect(await treePaneCollapsedItems.count()).toBe(0);
+
+        await page.goto('./#/browse/mine');
+        //Click the Create button
+        await page.click('button:has-text("Create")');
+
+        // Click the object specified by 'type'
+        await page.click(`li[role='menuitem']:text("Clock")`);
+        await expandEntireTree(page, "Create Modal Tree");
+        const locatorTree = page.getByRole("tree", {
+            name: "Create Modal Tree"
+        });
+        const locatorTreeCollapsedItems = locatorTree.locator('role=treeitem[expanded=false]');
+        expect(await locatorTreeCollapsedItems.count()).toBe(0);
+    });
 });

e2e/tests/framework/exampleTemplate.e2e.spec.js

@@ -45,7 +45,7 @@
 */
 
 // Structure: Some standard Imports. Please update the required pathing.
-const { test, expect } = require('../../baseFixtures');
+const { test, expect } = require('../../pluginFixtures');
 const { createDomainObjectWithDefaults } = require('../../appActions');
 
 /**
@@ -144,5 +144,5 @@ async function renameTimerFrom3DotMenu(page, timerUrl, newNameForTimer) {
     await page.locator('text=Properties Title Notes >> input[type="text"]').fill(newNameForTimer);
 
     // Click Ok button to Save
-    await page.locator('text=OK').click();
+    await page.locator('button:has-text("OK")').click();
 }

e2e/tests/framework/generateVisualTestData.e2e.spec.js

@@ -43,14 +43,14 @@ test('Generate Visual Test Data @localStorage', async ({ page, context }) => {
     await page.locator('button:has-text("Create")').click();
 
     // add sine wave generator with defaults
-    await page.locator('li:has-text("Sine Wave Generator")').click();
+    await page.locator('li[role="menuitem"]:has-text("Sine Wave Generator")').click();
 
     //Add a 5000 ms Delay
     await page.locator('[aria-label="Loading Delay \\(ms\\)"]').fill('5000');
 
     await Promise.all([
         page.waitForNavigation(),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear
         page.waitForSelector('.c-message-banner__message')
     ]);
@@ -58,7 +58,7 @@ test('Generate Visual Test Data @localStorage', async ({ page, context }) => {
     // focus the overlay plot
     await page.goto(overlayPlot.url);
 
-    await expect(page.locator('.l-browse-bar__object-name')).toContainText('Unnamed Overlay Plot');
+    await expect(page.locator('.l-browse-bar__object-name')).toContainText(overlayPlot.name);
     //Save localStorage for future test execution
     await context.storageState({ path: './e2e/test-data/VisualTestData_storage.json' });
 });

e2e/tests/functional/couchdb.e2e.spec.js

@@ -25,9 +25,9 @@
 *
 */
 
-const { test, expect } = require('../../baseFixtures');
+const { test, expect } = require('../../pluginFixtures');
 
-test.describe("CouchDB Status Indicator @couchdb", () => {
+test.describe("CouchDB Status Indicator with mocked responses @couchdb", () => {
     test.use({ failOnConsoleError: false });
     //TODO BeforeAll Verify CouchDB Connectivity with APIContext
     test('Shows green if connected', async ({ page }) => {
@@ -71,38 +71,41 @@ test.describe("CouchDB Status Indicator @couchdb", () => {
     });
 });
 
-test.describe("CouchDB initialization @couchdb", () => {
+test.describe("CouchDB initialization with mocked responses @couchdb", () => {
     test.use({ failOnConsoleError: false });
     test("'My Items' folder is created if it doesn't exist", async ({ page }) => {
-        // Store any relevant PUT requests that happen on the page
-        const createMineFolderRequests = [];
-        page.on('request', req => {
-            // eslint-disable-next-line playwright/no-conditional-in-test
-            if (req.method() === 'PUT' && req.url().endsWith('openmct/mine')) {
-                createMineFolderRequests.push(req);
-            }
-        });
+        const mockedMissingObjectResponsefromCouchDB = {
+            status: 404,
+            contentType: 'application/json',
+            body: JSON.stringify({})
+        };
 
-        // Override the first request to GET openmct/mine to return a 404
-        await page.route('**/openmct/mine', route => {
-            route.fulfill({
-                status: 404,
-                contentType: 'application/json',
-                body: JSON.stringify({})
-            });
+        // Override the first request to GET openmct/mine to return a 404.
+        // This simulates the case of starting Open MCT with a fresh database
+        // and no "My Items" folder created yet.
+        await page.route('**/mine', route => {
+            route.fulfill(mockedMissingObjectResponsefromCouchDB);
         }, { times: 1 });
 
-        // Go to baseURL
+        // Set up promise to verify that a PUT request to create "My Items"
+        // folder was made.
+        const putMineFolderRequest = page.waitForRequest(req =>
+            req.url().endsWith('/mine')
+            && req.method() === 'PUT');
+
+        // Set up promise to verify that a GET request to retrieve "My Items"
+        // folder was made.
+        const getMineFolderRequest = page.waitForRequest(req =>
+            req.url().endsWith('/mine')
+            && req.method() === 'GET');
+
+        // Go to baseURL.
         await page.goto('./', { waitUntil: 'networkidle' });
 
-        // Verify that error banner is displayed
-        const bannerMessage = await page.locator('.c-message-banner__message').innerText();
-        expect(bannerMessage).toEqual('Failed to retrieve object mine');
-
-        // Verify that a PUT request to create "My Items" folder was made
-        await expect.poll(() => createMineFolderRequests.length, {
-            message: 'Verify that PUT request to create "mine" folder was made',
-            timeout: 1000
-        }).toBeGreaterThanOrEqual(1);
+        // Wait for both requests to resolve.
+        await Promise.all([
+            putMineFolderRequest,
+            getMineFolderRequest
+        ]);
     });
 });

e2e/tests/functional/example/eventGenerator.e2e.spec.js

@@ -24,7 +24,7 @@
 This test suite is dedicated to tests which verify the basic operations surrounding the example event generator.
 */
 
-const { test, expect } = require('../../../baseFixtures');
+const { test, expect } = require('../../../pluginFixtures');
 const { createDomainObjectWithDefaults } = require('../../../appActions');
 
 test.describe('Example Event Generator CRUD Operations', () => {

e2e/tests/functional/example/generator/sineWaveLimitProvider.e2e.spec.js

@@ -96,7 +96,7 @@ test.describe('Sine Wave Generator', () => {
         //Click text=OK
         await Promise.all([
             page.waitForNavigation(),
-            page.click('text=OK')
+            page.click('button:has-text("OK")')
         ]);
 
         // Verify that the Sine Wave Generator is displayed and correct

e2e/tests/functional/forms.e2e.spec.js

@@ -24,10 +24,14 @@
 This test suite is dedicated to tests which verify form functionality in isolation
 */
 
-const { test, expect } = require('../../baseFixtures');
+const { test, expect } = require('../../pluginFixtures');
+const { createDomainObjectWithDefaults } = require('../../appActions');
+const genUuid = require('uuid').v4;
 const path = require('path');
 
 const TEST_FOLDER = 'test folder';
+const jsonFilePath = 'e2e/test-data/ExampleLayouts.json';
+const imageFilePath = 'e2e/test-data/rick.jpg';
 
 test.describe('Form Validation Behavior', () => {
     test('Required Field indicators appear if title is empty and can be corrected', async ({ page }) => {
@@ -43,7 +47,7 @@ test.describe('Form Validation Behavior', () => {
         await page.press('text=Properties Title Notes >> input[type="text"]', 'Tab');
 
         //Required Field Form Validation
-        await expect(page.locator('text=OK')).toBeDisabled();
+        await expect(page.locator('button:has-text("OK")')).toBeDisabled();
         await expect(page.locator('.c-form-row__state-indicator').first()).toHaveClass(/invalid/);
 
         //Correct Form Validation for missing title and trigger validation with 'Tab'
@@ -52,13 +56,13 @@ test.describe('Form Validation Behavior', () => {
         await page.press('text=Properties Title Notes >> input[type="text"]', 'Tab');
 
         //Required Field Form Validation is corrected
-        await expect(page.locator('text=OK')).toBeEnabled();
+        await expect(page.locator('button:has-text("OK")')).toBeEnabled();
         await expect(page.locator('.c-form-row__state-indicator').first()).not.toHaveClass(/invalid/);
 
         //Finish Creating Domain Object
         await Promise.all([
             page.waitForNavigation(),
-            page.click('text=OK')
+            page.click('button:has-text("OK")')
         ]);
 
         //Verify that the Domain Object has been created with the corrected title property
@@ -66,6 +70,41 @@ test.describe('Form Validation Behavior', () => {
     });
 });
 
+test.describe('Form File Input Behavior', () => {
+    test.beforeEach(async ({ page }) => {
+        // eslint-disable-next-line no-undef
+        await page.addInitScript({ path: path.join(__dirname, '../../helper', 'addInitFileInputObject.js') });
+    });
+
+    test('Can select a JSON file type', async ({ page }) => {
+        await page.goto('./', { waitUntil: 'networkidle' });
+
+        await page.getByRole('button', { name: ' Create ' }).click();
+        await page.getByRole('menuitem', { name: 'JSON File Input Object' }).click();
+
+        await page.setInputFiles('#fileElem', jsonFilePath);
+
+        await page.getByRole('button', { name: 'Save' }).click();
+
+        const type = await page.locator('#file-input-type').textContent();
+        await expect(type).toBe(`"string"`);
+    });
+
+    test('Can select an image file type', async ({ page }) => {
+        await page.goto('./', { waitUntil: 'networkidle' });
+
+        await page.getByRole('button', { name: ' Create ' }).click();
+        await page.getByRole('menuitem', { name: 'Image File Input Object' }).click();
+
+        await page.setInputFiles('#fileElem', imageFilePath);
+
+        await page.getByRole('button', { name: 'Save' }).click();
+
+        const type = await page.locator('#file-input-type').textContent();
+        await expect(type).toBe(`"object"`);
+    });
+});
+
 test.describe('Persistence operations @addInit', () => {
     // add non persistable root item
     test.beforeEach(async ({ page }) => {
@@ -91,6 +130,146 @@ test.describe('Persistence operations @addInit', () => {
     });
 });
 
+test.describe('Persistence operations @couchdb', () => {
+    test.use({ failOnConsoleError: false });
+    test('Editing object properties should generate a single persistence operation', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/5616'
+        });
+
+        await page.goto('./', { waitUntil: 'networkidle' });
+
+        // Create a new 'Clock' object with default settings
+        const clock = await createDomainObjectWithDefaults(page, {
+            type: 'Clock'
+        });
+
+        // Count all persistence operations (PUT requests) for this specific object
+        let putRequestCount = 0;
+        page.on('request', req => {
+            if (req.method() === 'PUT' && req.url().endsWith(clock.uuid)) {
+                putRequestCount += 1;
+            }
+        });
+
+        // Open the edit form for the clock object
+        await page.click('button[title="More options"]');
+        await page.click('li[title="Edit properties of this object."]');
+
+        // Modify the display format from default 12hr -> 24hr and click 'Save'
+        await page.locator('select[aria-label="12 or 24 hour clock"]').selectOption({ value: 'clock24' });
+        await page.click('button[aria-label="Save"]');
+
+        await expect.poll(() => putRequestCount, {
+            message: 'Verify a single PUT request was made to persist the object',
+            timeout: 1000
+        }).toEqual(1);
+    });
+    test('Can create an object after a conflict error @couchdb @2p', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/5982'
+        });
+
+        const page2 = await page.context().newPage();
+
+        // Both pages: Go to baseURL
+        await Promise.all([
+            page.goto('./', { waitUntil: 'networkidle' }),
+            page2.goto('./', { waitUntil: 'networkidle' })
+        ]);
+
+        // Both pages: Click the Create button
+        await Promise.all([
+            page.click('button:has-text("Create")'),
+            page2.click('button:has-text("Create")')
+        ]);
+
+        // Both pages: Click "Clock" in the Create menu
+        await Promise.all([
+            page.click(`li[role='menuitem']:text("Clock")`),
+            page2.click(`li[role='menuitem']:text("Clock")`)
+        ]);
+
+        // Generate unique names for both objects
+        const nameInput = page.locator('form[name="mctForm"] .first input[type="text"]');
+        const nameInput2 = page2.locator('form[name="mctForm"] .first input[type="text"]');
+
+        // Both pages: Fill in the 'Name' form field.
+        await Promise.all([
+            nameInput.fill(""),
+            nameInput.fill(`Clock:${genUuid()}`),
+            nameInput2.fill(""),
+            nameInput2.fill(`Clock:${genUuid()}`)
+        ]);
+
+        // Both pages: Fill the "Notes" section with information about the
+        // currently running test and its project.
+        const testNotes = page.testNotes;
+        const notesInput = page.locator('form[name="mctForm"] #notes-textarea');
+        const notesInput2 = page2.locator('form[name="mctForm"] #notes-textarea');
+        await Promise.all([
+            notesInput.fill(testNotes),
+            notesInput2.fill(testNotes)
+        ]);
+
+        // Page 2: Click "OK" to create the domain object and wait for navigation.
+        // This will update the composition of the parent folder, setting the
+        // conditions for a conflict error from the first page.
+        await Promise.all([
+            page2.waitForLoadState(),
+            page2.click('[aria-label="Save"]'),
+            // Wait for Save Banner to appear
+            page2.waitForSelector('.c-message-banner__message')
+        ]);
+
+        // Close Page 2, we're done with it.
+        await page2.close();
+
+        // Page 1: Click "OK" to create the domain object and wait for navigation.
+        // This will trigger a conflict error upon attempting to update
+        // the composition of the parent folder.
+        await Promise.all([
+            page.waitForLoadState(),
+            page.click('[aria-label="Save"]'),
+            // Wait for Save Banner to appear
+            page.waitForSelector('.c-message-banner__message')
+        ]);
+
+        // Page 1: Verify that the conflict has occurred and an error notification is displayed.
+        await expect(page.locator('.c-message-banner__message', {
+            hasText: "Conflict detected while saving mine"
+        })).toBeVisible();
+
+        // Page 1: Start logging console errors from this point on
+        let errors = [];
+        page.on('console', (msg) => {
+            if (msg.type() === 'error') {
+                errors.push(msg.text());
+            }
+        });
+
+        // Page 1: Try to create a clock with the page that received the conflict.
+        const clockAfterConflict = await createDomainObjectWithDefaults(page, {
+            type: 'Clock'
+        });
+
+        // Page 1: Wait for save progress dialog to appear/disappear
+        await page.locator('.c-message-banner__message', {
+            hasText: 'Do not navigate away from this page or close this browser tab while this message is displayed.',
+            state: 'visible'
+        }).waitFor({ state: 'hidden' });
+
+        // Page 1: Navigate to 'My Items' and verify that the second clock was created
+        await page.goto('./#/browse/mine');
+        await expect(page.locator(`.c-grid-item__name[title="${clockAfterConflict.name}"]`)).toBeVisible();
+
+        // Verify no console errors occurred
+        expect(errors).toHaveLength(0);
+    });
+});
+
 test.describe('Form Correctness by Object Type', () => {
     test.fixme('Verify correct behavior of number object (SWG)', async ({page}) => {});
     test.fixme('Verify correct behavior of number object Timer', async ({page}) => {});

e2e/tests/functional/moveAndLinkObjects.e2e.spec.js

@@ -43,48 +43,80 @@ test.describe('Move & link item tests', () => {
             name: 'Child Folder',
             parent: parentFolder.uuid
         });
-        await createDomainObjectWithDefaults(page, {
+        const grandchildFolder = await createDomainObjectWithDefaults(page, {
             type: 'Folder',
             name: 'Grandchild Folder',
             parent: childFolder.uuid
         });
 
         // Attempt to move parent to its own grandparent
-        await page.locator(`text=Open MCT ${myItemsFolderName} >> span`).nth(3).click();
-        await page.locator('.c-disclosure-triangle >> nth=0').click();
+        await page.locator('button[title="Show selected item in tree"]').click();
 
-        await page.locator(`a:has-text("Parent Folder") >> nth=0`).click({
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        await treePane.getByRole('treeitem', {
+            name: 'Parent Folder'
+        }).click({
             button: 'right'
         });
 
-        await page.locator('li.icon-move').click();
-        await page.locator('form[name="mctForm"] >> .c-disclosure-triangle >> nth=0').click();
-        await page.locator('form[name="mctForm"] >> text=Parent Folder').click();
+        await page.getByRole('menuitem', {
+            name: /Move/
+        }).click();
+
+        const createModalTree = page.getByRole('tree', {
+            name: "Create Modal Tree"
+        });
+        const myItemsLocatorTreeItem = createModalTree.getByRole('treeitem', {
+            name: myItemsFolderName
+        });
+        await myItemsLocatorTreeItem.locator('.c-disclosure-triangle').click();
+        await myItemsLocatorTreeItem.click();
+
+        const parentFolderLocatorTreeItem = createModalTree.getByRole('treeitem', {
+            name: parentFolder.name
+        });
+        await parentFolderLocatorTreeItem.locator('.c-disclosure-triangle').click();
+        await parentFolderLocatorTreeItem.click();
         await expect(page.locator('[aria-label="Save"]')).toBeDisabled();
-        await page.locator('form[name="mctForm"] >> .c-disclosure-triangle >> nth=1').click();
-        await page.locator('form[name="mctForm"] >> text=Child Folder').click();
+
+        const childFolderLocatorTreeItem = createModalTree.getByRole('treeitem', {
+            name: new RegExp(childFolder.name)
+        });
+        await childFolderLocatorTreeItem.locator('.c-disclosure-triangle').click();
+        await childFolderLocatorTreeItem.click();
         await expect(page.locator('[aria-label="Save"]')).toBeDisabled();
-        await page.locator('form[name="mctForm"] >> .c-disclosure-triangle >> nth=2').click();
-        await page.locator('form[name="mctForm"] >> text=Grandchild Folder').click();
+
+        const grandchildFolderLocatorTreeItem = createModalTree.getByRole('treeitem', {
+            name: grandchildFolder.name
+        });
+        await grandchildFolderLocatorTreeItem.locator('.c-disclosure-triangle').click();
+        await grandchildFolderLocatorTreeItem.click();
         await expect(page.locator('[aria-label="Save"]')).toBeDisabled();
-        await page.locator('form[name="mctForm"] >> text=Parent Folder').click();
+
+        await parentFolderLocatorTreeItem.click();
         await expect(page.locator('[aria-label="Save"]')).toBeDisabled();
         await page.locator('[aria-label="Cancel"]').click();
 
         // Move Child Folder from Parent Folder to My Items
-        await page.locator('.c-disclosure-triangle >> nth=0').click();
-        await page.locator('.c-disclosure-triangle >> nth=1').click();
-
-        await page.locator(`a:has-text("Child Folder") >> nth=0`).click({
+        await treePane.getByRole('treeitem', {
+            name: new RegExp(childFolder.name)
+        }).click({
             button: 'right'
         });
-        await page.locator('li.icon-move').click();
-        await page.locator(`form[name="mctForm"] >> text=${myItemsFolderName}`).click();
+        await page.getByRole('menuitem', {
+            name: /Move/
+        }).click();
+        await myItemsLocatorTreeItem.click();
 
-        await page.locator('text=OK').click();
+        await page.locator('[aria-label="Save"]').click();
+        const myItemsPaneTreeItem = treePane.getByRole('treeitem', {
+            name: myItemsFolderName
+        });
 
         // Expect that Child Folder is in My Items, the root folder
-        expect(page.locator(`text=${myItemsFolderName} >> nth=0:has(text=Child Folder)`)).toBeTruthy();
+        expect(myItemsPaneTreeItem.locator('nth=0:has(text=Child Folder)')).toBeTruthy();
     });
     test('Create a basic object and verify that it cannot be moved to telemetry object without Composition Provider', async ({ page, openmctConfig }) => {
         const { myItemsFolderName } = openmctConfig;
@@ -95,11 +127,11 @@ test.describe('Move & link item tests', () => {
         // Create Telemetry Table
         let telemetryTable = 'Test Telemetry Table';
         await page.locator('button:has-text("Create")').click();
-        await page.locator('li:has-text("Telemetry Table")').click();
+        await page.locator('li[role="menuitem"]:has-text("Telemetry Table")').click();
         await page.locator('text=Properties Title Notes >> input[type="text"]').click();
         await page.locator('text=Properties Title Notes >> input[type="text"]').fill(telemetryTable);
 
-        await page.locator('text=OK').click();
+        await page.locator('button:has-text("OK")').click();
 
         // Finish editing and save Telemetry Table
         await page.locator('.c-button--menu.c-button--major.icon-save').click();
@@ -108,19 +140,19 @@ test.describe('Move & link item tests', () => {
         // Create New Folder Basic Domain Object
         let folder = 'Test Folder';
         await page.locator('button:has-text("Create")').click();
-        await page.locator('li:has-text("Folder")').click();
+        await page.locator('li[role="menuitem"]:has-text("Folder")').click();
         await page.locator('text=Properties Title Notes >> input[type="text"]').click();
         await page.locator('text=Properties Title Notes >> input[type="text"]').fill(folder);
 
         // See if it's possible to put the folder in the Telemetry object during creation (Soft Assert)
         await page.locator(`form[name="mctForm"] >> text=${telemetryTable}`).click();
-        let okButton = await page.locator('button.c-button.c-button--major:has-text("OK")');
+        let okButton = page.locator('button.c-button.c-button--major:has-text("OK")');
         let okButtonStateDisabled = await okButton.isDisabled();
         expect.soft(okButtonStateDisabled).toBeTruthy();
 
         // Continue test regardless of assertion and create it in My Items
         await page.locator(`form[name="mctForm"] >> text=${myItemsFolderName}`).click();
-        await page.locator('text=OK').click();
+        await page.locator('button:has-text("OK")').click();
 
         // Open My Items
         await page.locator(`text=Open MCT ${myItemsFolderName} >> span`).nth(3).click();
@@ -138,7 +170,7 @@ test.describe('Move & link item tests', () => {
         // See if it's possible to put the folder in the Telemetry object after creation
         await page.locator(`text=Location Open MCT ${myItemsFolderName} >> span`).nth(3).click();
         await page.locator(`form[name="mctForm"] >> text=${telemetryTable}`).click();
-        let okButton2 = await page.locator('button.c-button.c-button--major:has-text("OK")');
+        let okButton2 = page.locator('button.c-button.c-button--major:has-text("OK")');
         let okButtonStateDisabled2 = await okButton2.isDisabled();
         expect(okButtonStateDisabled2).toBeTruthy();
     });
@@ -158,48 +190,80 @@ test.describe('Move & link item tests', () => {
             name: 'Child Folder',
             parent: parentFolder.uuid
         });
-        await createDomainObjectWithDefaults(page, {
+        const grandchildFolder = await createDomainObjectWithDefaults(page, {
             type: 'Folder',
             name: 'Grandchild Folder',
             parent: childFolder.uuid
         });
 
-        // Attempt to link parent to its own grandparent
-        await page.locator(`text=Open MCT ${myItemsFolderName} >> span`).nth(3).click();
-        await page.locator('.c-disclosure-triangle >> nth=0').click();
+        // Attempt to move parent to its own grandparent
+        await page.locator('button[title="Show selected item in tree"]').click();
 
-        await page.locator(`a:has-text("Parent Folder") >> nth=0`).click({
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        await treePane.getByRole('treeitem', {
+            name: 'Parent Folder'
+        }).click({
             button: 'right'
         });
 
-        await page.locator('li.icon-link').click();
-        await page.locator('form[name="mctForm"] >> .c-disclosure-triangle >> nth=0').click();
-        await page.locator('form[name="mctForm"] >> text=Parent Folder').click();
+        await page.getByRole('menuitem', {
+            name: /Move/
+        }).click();
+
+        const createModalTree = page.getByRole('tree', {
+            name: "Create Modal Tree"
+        });
+        const myItemsLocatorTreeItem = createModalTree.getByRole('treeitem', {
+            name: myItemsFolderName
+        });
+        await myItemsLocatorTreeItem.locator('.c-disclosure-triangle').click();
+        await myItemsLocatorTreeItem.click();
+
+        const parentFolderLocatorTreeItem = createModalTree.getByRole('treeitem', {
+            name: parentFolder.name
+        });
+        await parentFolderLocatorTreeItem.locator('.c-disclosure-triangle').click();
+        await parentFolderLocatorTreeItem.click();
         await expect(page.locator('[aria-label="Save"]')).toBeDisabled();
-        await page.locator('form[name="mctForm"] >> .c-disclosure-triangle >> nth=1').click();
-        await page.locator('form[name="mctForm"] >> text=Child Folder').click();
+
+        const childFolderLocatorTreeItem = createModalTree.getByRole('treeitem', {
+            name: new RegExp(childFolder.name)
+        });
+        await childFolderLocatorTreeItem.locator('.c-disclosure-triangle').click();
+        await childFolderLocatorTreeItem.click();
         await expect(page.locator('[aria-label="Save"]')).toBeDisabled();
-        await page.locator('form[name="mctForm"] >> .c-disclosure-triangle >> nth=2').click();
-        await page.locator('form[name="mctForm"] >> text=Grandchild Folder').click();
+
+        const grandchildFolderLocatorTreeItem = createModalTree.getByRole('treeitem', {
+            name: grandchildFolder.name
+        });
+        await grandchildFolderLocatorTreeItem.locator('.c-disclosure-triangle').click();
+        await grandchildFolderLocatorTreeItem.click();
         await expect(page.locator('[aria-label="Save"]')).toBeDisabled();
-        await page.locator('form[name="mctForm"] >> text=Parent Folder').click();
+
+        await parentFolderLocatorTreeItem.click();
         await expect(page.locator('[aria-label="Save"]')).toBeDisabled();
         await page.locator('[aria-label="Cancel"]').click();
 
-        // Link Child Folder from Parent Folder to My Items
-        await page.locator('.c-disclosure-triangle >> nth=0').click();
-        await page.locator('.c-disclosure-triangle >> nth=1').click();
-
-        await page.locator(`a:has-text("Child Folder") >> nth=0`).click({
+        // Move Child Folder from Parent Folder to My Items
+        await treePane.getByRole('treeitem', {
+            name: new RegExp(childFolder.name)
+        }).click({
             button: 'right'
         });
-        await page.locator('li.icon-link').click();
-        await page.locator(`form[name="mctForm"] >> text=${myItemsFolderName}`).click();
+        await page.getByRole('menuitem', {
+            name: /Link/
+        }).click();
+        await myItemsLocatorTreeItem.click();
 
-        await page.locator('text=OK').click();
+        await page.locator('[aria-label="Save"]').click();
+        const myItemsPaneTreeItem = treePane.getByRole('treeitem', {
+            name: myItemsFolderName
+        });
 
         // Expect that Child Folder is in My Items, the root folder
-        expect(page.locator(`text=${myItemsFolderName} >> nth=0:has(text=Child Folder)`)).toBeTruthy();
+        expect(myItemsPaneTreeItem.locator('nth=0:has(text=Child Folder)')).toBeTruthy();
     });
 });
 

e2e/tests/functional/notification.e2e.spec.js

@@ -0,0 +1,79 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2023, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/*
+This test suite is dedicated to tests which verify Open MCT's Notification functionality
+*/
+
+// FIXME: Remove this eslint exception once tests are implemented
+// eslint-disable-next-line no-unused-vars
+const { createDomainObjectWithDefaults } = require('../../appActions');
+const { test, expect } = require('../../pluginFixtures');
+
+test.describe('Notifications List', () => {
+    test.fixme('Notifications can be dismissed individually', async ({ page }) => {
+        // Create some persistent notifications
+        // Verify that they are present in the notifications list
+        // Dismiss one of the notifications
+        // Verify that it is no longer present in the notifications list
+        // Verify that the other notifications are still present in the notifications list
+    });
+});
+
+test.describe('Notification Overlay', () => {
+    test('Closing notification list after notification banner disappeared does not cause it to open automatically', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/6130'
+        });
+
+        // Go to baseURL
+        await page.goto('./', { waitUntil: 'networkidle' });
+
+        // Create a new Display Layout object
+        await createDomainObjectWithDefaults(page, { type: 'Display Layout' });
+
+        // Click on the button "Review 1 Notification"
+        await page.click('button[aria-label="Review 1 Notification"]');
+
+        // Verify that Notification List is open
+        expect(await page.locator('div[role="dialog"]').isVisible()).toBe(true);
+
+        // Wait until there is no Notification Banner
+        await page.waitForSelector('div[role="alert"]', { state: 'detached'});
+
+        // Click on the "Close" button of the Notification List
+        await page.click('button[aria-label="Close"]');
+
+        // On the Display Layout object, click on the "Edit" button
+        await page.click('button[title="Edit"]');
+
+        // Click on the "Save" button
+        await page.click('button[title="Save"]');
+
+        // Click on the "Save and Finish Editing" option
+        await page.click('li[title="Save and Finish Editing"]');
+
+        // Verify that Notification List is NOT open
+        expect(await page.locator('div[role="dialog"]').isVisible()).toBe(false);
+    });
+});

e2e/tests/functional/plugins/conditionSet/conditionSet.e2e.spec.js

@@ -40,11 +40,11 @@ test.describe.serial('Condition Set CRUD Operations on @localStorage', () => {
         await page.goto('./', { waitUntil: 'networkidle' });
         await page.click('button:has-text("Create")');
 
-        await page.locator('li:has-text("Condition Set")').click();
+        await page.locator('li[role="menuitem"]:has-text("Condition Set")').click();
 
         await Promise.all([
             page.waitForNavigation(),
-            page.click('text=OK')
+            page.click('button:has-text("OK")')
         ]);
 
         //Save localStorage for future test execution
@@ -98,8 +98,8 @@ test.describe.serial('Condition Set CRUD Operations on @localStorage', () => {
         await page.locator('text=Conditions View Snapshot >> button').nth(3).click();
 
         //Edit Condition Set Name from main view
-        await page.locator('text=Unnamed Condition Set').first().fill('Renamed Condition Set');
-        await page.locator('text=Renamed Condition Set').first().press('Enter');
+        await page.locator('.l-browse-bar__object-name').filter({ hasText: 'Unnamed Condition Set' }).first().fill('Renamed Condition Set');
+        await page.locator('.l-browse-bar__object-name').filter({ hasText: 'Renamed Condition Set' }).first().press('Enter');
         // Click Save Button
         await page.locator('text=Snapshot Save and Finish Editing Save and Continue Editing >> button').nth(1).click();
         // Click Save and Finish Editing Option
@@ -163,9 +163,9 @@ test.describe.serial('Condition Set CRUD Operations on @localStorage', () => {
         // Click hamburger button
         await page.locator('[title="More options"]').click();
 
-        // Click text=Remove
-        await page.locator('text=Remove').click();
-        await page.locator('text=OK').click();
+        // Click 'Remove' and press OK
+        await page.locator('li[role="menuitem"]:has-text("Remove")').click();
+        await page.locator('button:has-text("OK")').click();
 
         //Expect Unnamed Condition Set to be removed in Main View
         const numberOfConditionSetsAtEnd = await page.locator('a:has-text("Unnamed Condition Set Condition Set")').count();

e2e/tests/functional/plugins/displayLayout/displayLayout.e2e.spec.js

@@ -23,7 +23,8 @@
 const { test, expect } = require('../../../../pluginFixtures');
 const { createDomainObjectWithDefaults, setStartOffset, setFixedTimeMode, setRealTimeMode } = require('../../../../appActions');
 
-test.describe('Testing Display Layout @unstable', () => {
+test.describe('Display Layout', () => {
+    /** @type {import('../../../../appActions').CreatedObjectInfo} */
     let sineWaveObject;
     test.beforeEach(async ({ page }) => {
         await page.goto('./', { waitUntil: 'networkidle' });
@@ -31,8 +32,7 @@ test.describe('Testing Display Layout @unstable', () => {
 
         // Create Sine Wave Generator
         sineWaveObject = await createDomainObjectWithDefaults(page, {
-            type: 'Sine Wave Generator',
-            name: "Test Sine Wave Generator"
+            type: 'Sine Wave Generator'
         });
     });
     test('alpha-numeric widget telemetry value exactly matches latest telemetry value received in real time', async ({ page }) => {
@@ -47,7 +47,14 @@ test.describe('Testing Display Layout @unstable', () => {
         // Expand the 'My Items' folder in the left tree
         await page.locator('.c-tree__item__view-control.c-disclosure-triangle').click();
         // Add the Sine Wave Generator to the Display Layout and save changes
-        await page.dragAndDrop('text=Test Sine Wave Generator', '.l-layout__grid-holder');
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        const sineWaveGeneratorTreeItem = treePane.getByRole('treeitem', {
+            name: new RegExp(sineWaveObject.name)
+        });
+        const layoutGridHolder = page.locator('.l-layout__grid-holder');
+        await sineWaveGeneratorTreeItem.dragTo(layoutGridHolder);
         await page.locator('button[title="Save"]').click();
         await page.locator('text=Save and Finish Editing').click();
 
@@ -55,12 +62,12 @@ test.describe('Testing Display Layout @unstable', () => {
         // On getting data, check if the value found in the  Display Layout is the most recent value
         // from the Sine Wave Generator
         const getTelemValuePromise = await subscribeToTelemetry(page, sineWaveObject.uuid);
-        const formattedTelemetryValue = await getTelemValuePromise;
+        const formattedTelemetryValue = getTelemValuePromise;
         const displayLayoutValuePromise = await page.waitForSelector(`text="${formattedTelemetryValue}"`);
         const displayLayoutValue = await displayLayoutValuePromise.textContent();
         const trimmedDisplayValue = displayLayoutValue.trim();
 
-        await expect(trimmedDisplayValue).toBe(formattedTelemetryValue);
+        expect(trimmedDisplayValue).toBe(formattedTelemetryValue);
     });
     test('alpha-numeric widget telemetry value exactly matches latest telemetry value received in fixed time', async ({ page }) => {
         // Create a Display Layout
@@ -74,7 +81,14 @@ test.describe('Testing Display Layout @unstable', () => {
         // Expand the 'My Items' folder in the left tree
         await page.locator('.c-tree__item__view-control.c-disclosure-triangle').click();
         // Add the Sine Wave Generator to the Display Layout and save changes
-        await page.dragAndDrop('text=Test Sine Wave Generator', '.l-layout__grid-holder');
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        const sineWaveGeneratorTreeItem = treePane.getByRole('treeitem', {
+            name: new RegExp(sineWaveObject.name)
+        });
+        const layoutGridHolder = page.locator('.l-layout__grid-holder');
+        await sineWaveGeneratorTreeItem.dragTo(layoutGridHolder);
         await page.locator('button[title="Save"]').click();
         await page.locator('text=Save and Finish Editing').click();
 
@@ -86,12 +100,12 @@ test.describe('Testing Display Layout @unstable', () => {
 
         // On getting data, check if the value found in the Display Layout is the most recent value
         // from the Sine Wave Generator
-        const formattedTelemetryValue = await getTelemValuePromise;
+        const formattedTelemetryValue = getTelemValuePromise;
         const displayLayoutValuePromise = await page.waitForSelector(`text="${formattedTelemetryValue}"`);
         const displayLayoutValue = await displayLayoutValuePromise.textContent();
         const trimmedDisplayValue = displayLayoutValue.trim();
 
-        await expect(trimmedDisplayValue).toBe(formattedTelemetryValue);
+        expect(trimmedDisplayValue).toBe(formattedTelemetryValue);
     });
     test('items in a display layout can be removed with object tree context menu when viewing the display layout', async ({ page }) => {
         // Create a Display Layout
@@ -105,7 +119,14 @@ test.describe('Testing Display Layout @unstable', () => {
         // Expand the 'My Items' folder in the left tree
         await page.locator('.c-tree__item__view-control.c-disclosure-triangle').click();
         // Add the Sine Wave Generator to the Display Layout and save changes
-        await page.dragAndDrop('text=Test Sine Wave Generator', '.l-layout__grid-holder');
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        const sineWaveGeneratorTreeItem = treePane.getByRole('treeitem', {
+            name: new RegExp(sineWaveObject.name)
+        });
+        const layoutGridHolder = page.locator('.l-layout__grid-holder');
+        await sineWaveGeneratorTreeItem.dragTo(layoutGridHolder);
         await page.locator('button[title="Save"]').click();
         await page.locator('text=Save and Finish Editing').click();
 
@@ -115,19 +136,22 @@ test.describe('Testing Display Layout @unstable', () => {
         await page.locator('.c-tree__item.is-navigated-object .c-disclosure-triangle').click();
 
         // Bring up context menu and remove
-        await page.locator('.c-tree__item.is-alias .c-tree__item__name:text("Test Sine Wave Generator")').first().click({ button: 'right' });
-        await page.locator('text=Remove').click();
-        await page.locator('text=OK').click();
+        await sineWaveGeneratorTreeItem.nth(1).click({ button: 'right' });
+        await page.locator('li[role="menuitem"]:has-text("Remove")').click();
+        await page.locator('button:has-text("OK")').click();
 
         // delete
 
-        expect.soft(await page.locator('.l-layout .l-layout__frame').count()).toEqual(0);
+        expect(await page.locator('.l-layout .l-layout__frame').count()).toEqual(0);
     });
     test('items in a display layout can be removed with object tree context menu when viewing another item', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/3117'
+        });
         // Create a Display Layout
-        await createDomainObjectWithDefaults(page, {
-            type: 'Display Layout',
-            name: "Test Display Layout"
+        const displayLayout = await createDomainObjectWithDefaults(page, {
+            type: 'Display Layout'
         });
         // Edit Display Layout
         await page.locator('[title="Edit"]').click();
@@ -135,7 +159,14 @@ test.describe('Testing Display Layout @unstable', () => {
         // Expand the 'My Items' folder in the left tree
         await page.locator('.c-tree__item__view-control.c-disclosure-triangle').click();
         // Add the Sine Wave Generator to the Display Layout and save changes
-        await page.dragAndDrop('text=Test Sine Wave Generator', '.l-layout__grid-holder');
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        const sineWaveGeneratorTreeItem = treePane.getByRole('treeitem', {
+            name: new RegExp(sineWaveObject.name)
+        });
+        const layoutGridHolder = page.locator('.l-layout__grid-holder');
+        await sineWaveGeneratorTreeItem.dragTo(layoutGridHolder);
         await page.locator('button[title="Save"]').click();
         await page.locator('text=Save and Finish Editing').click();
 
@@ -144,18 +175,18 @@ test.describe('Testing Display Layout @unstable', () => {
         // Expand the Display Layout so we can remove the sine wave generator
         await page.locator('.c-tree__item.is-navigated-object .c-disclosure-triangle').click();
 
-        // Click the original Sine Wave Generator to navigate away from the Display Layout
-        await page.locator('.c-tree__item .c-tree__item__name:text("Test Sine Wave Generator")').click();
+        // Go to the original Sine Wave Generator to navigate away from the Display Layout
+        await page.goto(sineWaveObject.url);
 
         // Bring up context menu and remove
-        await page.locator('.c-tree__item.is-alias .c-tree__item__name:text("Test Sine Wave Generator")').click({ button: 'right' });
-        await page.locator('text=Remove').click();
-        await page.locator('text=OK').click();
+        await sineWaveGeneratorTreeItem.first().click({ button: 'right' });
+        await page.locator('li[role="menuitem"]:has-text("Remove")').click();
+        await page.locator('button:has-text("OK")').click();
 
         // navigate back to the display layout to confirm it has been removed
-        await page.locator('.c-tree__item .c-tree__item__name:text("Test Display Layout")').click();
+        await page.goto(displayLayout.url);
 
-        expect.soft(await page.locator('.l-layout .l-layout__frame').count()).toEqual(0);
+        expect(await page.locator('.l-layout .l-layout__frame').count()).toEqual(0);
     });
 });
 

e2e/tests/functional/plugins/flexibleLayout/flexibleLayout.e2e.spec.js

@@ -23,27 +23,35 @@
 const { test, expect } = require('../../../../pluginFixtures');
 const { createDomainObjectWithDefaults } = require('../../../../appActions');
 
-test.describe('Testing Flexible Layout @unstable', () => {
+test.describe('Flexible Layout', () => {
+    let sineWaveObject;
+    let clockObject;
     test.beforeEach(async ({ page }) => {
         await page.goto('./', { waitUntil: 'networkidle' });
 
         // Create Sine Wave Generator
-        await createDomainObjectWithDefaults(page, {
-            type: 'Sine Wave Generator',
-            name: "Test Sine Wave Generator"
+        sineWaveObject = await createDomainObjectWithDefaults(page, {
+            type: 'Sine Wave Generator'
         });
 
         // Create Clock Object
-        await createDomainObjectWithDefaults(page, {
-            type: 'Clock',
-            name: "Test Clock"
+        clockObject = await createDomainObjectWithDefaults(page, {
+            type: 'Clock'
         });
     });
     test('panes have the appropriate draggable attribute while in Edit and Browse modes', async ({ page }) => {
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        const sineWaveGeneratorTreeItem = treePane.getByRole('treeitem', {
+            name: new RegExp(sineWaveObject.name)
+        });
+        const clockTreeItem = treePane.getByRole('treeitem', {
+            name: new RegExp(clockObject.name)
+        });
         // Create a Flexible Layout
         await createDomainObjectWithDefaults(page, {
-            type: 'Flexible Layout',
-            name: "Test Flexible Layout"
+            type: 'Flexible Layout'
         });
         // Edit Flexible Layout
         await page.locator('[title="Edit"]').click();
@@ -51,16 +59,95 @@ test.describe('Testing Flexible Layout @unstable', () => {
         // Expand the 'My Items' folder in the left tree
         await page.locator('.c-tree__item__view-control.c-disclosure-triangle').first().click();
         // Add the Sine Wave Generator and Clock to the Flexible Layout
-        await page.dragAndDrop('text=Test Sine Wave Generator', '.c-fl__container.is-empty');
-        await page.dragAndDrop('text=Test Clock', '.c-fl__container.is-empty');
+        await sineWaveGeneratorTreeItem.dragTo(page.locator('.c-fl__container.is-empty').first());
+        await clockTreeItem.dragTo(page.locator('.c-fl__container.is-empty'));
         // Check that panes can be dragged while Flexible Layout is in Edit mode
-        let dragWrapper = await page.locator('.c-fl-container__frames-holder .c-fl-frame__drag-wrapper').first();
+        let dragWrapper = page.locator('.c-fl-container__frames-holder .c-fl-frame__drag-wrapper').first();
         await expect(dragWrapper).toHaveAttribute('draggable', 'true');
         // Save Flexible Layout
         await page.locator('button[title="Save"]').click();
         await page.locator('text=Save and Finish Editing').click();
         // Check that panes are not draggable while Flexible Layout is in Browse mode
-        dragWrapper = await page.locator('.c-fl-container__frames-holder .c-fl-frame__drag-wrapper').first();
+        dragWrapper = page.locator('.c-fl-container__frames-holder .c-fl-frame__drag-wrapper').first();
         await expect(dragWrapper).toHaveAttribute('draggable', 'false');
     });
+    test('items in a flexible layout can be removed with object tree context menu when viewing the flexible layout', async ({ page }) => {
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        const sineWaveGeneratorTreeItem = treePane.getByRole('treeitem', {
+            name: new RegExp(sineWaveObject.name)
+        });
+        // Create a Display Layout
+        await createDomainObjectWithDefaults(page, {
+            type: 'Flexible Layout'
+        });
+        // Edit Flexible Layout
+        await page.locator('[title="Edit"]').click();
+
+        // Expand the 'My Items' folder in the left tree
+        await page.locator('.c-tree__item__view-control.c-disclosure-triangle').first().click();
+        // Add the Sine Wave Generator to the Flexible Layout and save changes
+        await sineWaveGeneratorTreeItem.dragTo(page.locator('.c-fl__container.is-empty').first());
+        await page.locator('button[title="Save"]').click();
+        await page.locator('text=Save and Finish Editing').click();
+
+        expect.soft(await page.locator('.c-fl-container__frame').count()).toEqual(1);
+
+        // Expand the Flexible Layout so we can remove the sine wave generator
+        await page.locator('.c-tree__item.is-navigated-object .c-disclosure-triangle').click();
+
+        // Bring up context menu and remove
+        await sineWaveGeneratorTreeItem.first().click({ button: 'right' });
+        await page.locator('li[role="menuitem"]:has-text("Remove")').click();
+        await page.locator('button:has-text("OK")').click();
+
+        // Verify that the item has been removed from the layout
+        expect(await page.locator('.c-fl-container__frame').count()).toEqual(0);
+    });
+    test('items in a flexible layout can be removed with object tree context menu when viewing another item', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/3117'
+        });
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        const sineWaveGeneratorTreeItem = treePane.getByRole('treeitem', {
+            name: new RegExp(sineWaveObject.name)
+        });
+
+        // Create a Flexible Layout
+        const flexibleLayout = await createDomainObjectWithDefaults(page, {
+            type: 'Flexible Layout'
+        });
+        // Edit Flexible Layout
+        await page.locator('[title="Edit"]').click();
+
+        // Expand the 'My Items' folder in the left tree
+        await page.locator('.c-tree__item__view-control.c-disclosure-triangle').click();
+        // Add the Sine Wave Generator to the Flexible Layout and save changes
+        await sineWaveGeneratorTreeItem.dragTo(page.locator('.c-fl__container.is-empty').first());
+        await page.locator('button[title="Save"]').click();
+        await page.locator('text=Save and Finish Editing').click();
+
+        expect.soft(await page.locator('.c-fl-container__frame').count()).toEqual(1);
+
+        // Expand the Flexible Layout so we can remove the sine wave generator
+        await page.locator('.c-tree__item.is-navigated-object .c-disclosure-triangle').click();
+
+        // Go to the original Sine Wave Generator to navigate away from the Flexible Layout
+        await page.goto(sineWaveObject.url);
+
+        // Bring up context menu and remove
+        await sineWaveGeneratorTreeItem.first().click({ button: 'right' });
+        await page.locator('li[role="menuitem"]:has-text("Remove")').click();
+        await page.locator('button:has-text("OK")').click();
+
+        // navigate back to the display layout to confirm it has been removed
+        await page.goto(flexibleLayout.url);
+
+        // Verify that the item has been removed from the layout
+        expect(await page.locator('.c-fl-container__frame').count()).toEqual(0);
+    });
 });

e2e/tests/functional/plugins/gauge/gauge.e2e.spec.js

@@ -0,0 +1,124 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2022, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/*
+* This test suite is dedicated to testing the Gauge component.
+*/
+
+const { test, expect } = require('../../../../pluginFixtures');
+const { createDomainObjectWithDefaults } = require('../../../../appActions');
+const uuid = require('uuid').v4;
+
+test.describe('Gauge', () => {
+    test.beforeEach(async ({ page }) => {
+        // Open a browser, navigate to the main page, and wait until all networkevents to resolve
+        await page.goto('./', { waitUntil: 'networkidle' });
+    });
+
+    test('Can add and remove telemetry sources @unstable', async ({ page }) => {
+        // Create the gauge with defaults
+        const gauge = await createDomainObjectWithDefaults(page, { type: 'Gauge' });
+        const editButtonLocator = page.locator('button[title="Edit"]');
+        const saveButtonLocator = page.locator('button[title="Save"]');
+
+        // Create a sine wave generator within the gauge
+        const swg1 = await createDomainObjectWithDefaults(page, {
+            type: 'Sine Wave Generator',
+            name: `swg-${uuid()}`,
+            parent: gauge.uuid
+        });
+
+        // Navigate to the gauge and verify that
+        // the SWG appears in the elements pool
+        await page.goto(gauge.url);
+        await editButtonLocator.click();
+        await expect.soft(page.locator(`#inspector-elements-tree >> text=${swg1.name}`)).toBeVisible();
+        await saveButtonLocator.click();
+        await page.locator('li[title="Save and Finish Editing"]').click();
+
+        // Create another sine wave generator within the gauge
+        const swg2 = await createDomainObjectWithDefaults(page, {
+            type: 'Sine Wave Generator',
+            name: `swg-${uuid()}`,
+            parent: gauge.uuid
+        });
+
+        // Verify that the 'Replace telemetry source' modal appears and accept it
+        await expect.soft(page.locator('text=This action will replace the current telemetry source. Do you want to continue?')).toBeVisible();
+        await page.click('text=Ok');
+
+        // Navigate to the gauge and verify that the new SWG
+        // appears in the elements pool and the old one is gone
+        await page.goto(gauge.url);
+        await editButtonLocator.click();
+        await expect.soft(page.locator(`#inspector-elements-tree >> text=${swg1.name}`)).toBeHidden();
+        await expect.soft(page.locator(`#inspector-elements-tree >> text=${swg2.name}`)).toBeVisible();
+        await saveButtonLocator.click();
+
+        // Right click on the new SWG in the elements pool and delete it
+        await page.locator(`#inspector-elements-tree >> text=${swg2.name}`).click({
+            button: 'right'
+        });
+        await page.locator('li[title="Remove this object from its containing object."]').click();
+
+        // Verify that the 'Remove object' confirmation modal appears and accept it
+        await expect.soft(page.locator('text=Warning! This action will remove this object. Are you sure you want to continue?')).toBeVisible();
+        await page.click('text=Ok');
+
+        // Verify that the elements pool shows no elements
+        await expect(page.locator('text="No contained elements"')).toBeVisible();
+    });
+    test('Can create a non-default Gauge', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/5356'
+        });
+        //Click the Create button
+        await page.click('button:has-text("Create")');
+
+        // Click the object specified by 'type'
+        await page.click(`li[role='menuitem']:text("Gauge")`);
+        // FIXME: We need better selectors for these custom form controls
+        const displayCurrentValueSwitch = page.locator('.c-toggle-switch__slider >> nth=0');
+        await displayCurrentValueSwitch.setChecked(false);
+        await page.click('button[aria-label="Save"]');
+
+        // TODO: Verify changes in the UI
+    });
+    test('Can edit a single Gauge-specific property', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/5985'
+        });
+
+        // Create the gauge with defaults
+        await createDomainObjectWithDefaults(page, { type: 'Gauge' });
+        await page.click('button[title="More options"]');
+        await page.click('li[role="menuitem"]:has-text("Edit Properties")');
+        // FIXME: We need better selectors for these custom form controls
+        const displayCurrentValueSwitch = page.locator('.c-toggle-switch__slider >> nth=0');
+        await displayCurrentValueSwitch.setChecked(false);
+        await page.click('button[aria-label="Save"]');
+
+        // TODO: Verify changes in the UI
+    });
+});

e2e/tests/functional/plugins/imagery/exampleImagery.e2e.spec.js

@@ -25,13 +25,13 @@ This test suite is dedicated to tests which verify the basic operations surround
 but only assume that example imagery is present.
 */
 /* globals process */
-const { v4: uuid } = require('uuid');
 const { waitForAnimations } = require('../../../../baseFixtures');
 const { test, expect } = require('../../../../pluginFixtures');
 const { createDomainObjectWithDefaults } = require('../../../../appActions');
 const backgroundImageSelector = '.c-imagery__main-image__background-image';
 const panHotkey = process.platform === 'linux' ? ['Control', 'Alt'] : ['Alt'];
 const expectedAltText = process.platform === 'linux' ? 'Ctrl+Alt drag to pan' : 'Alt drag to pan';
+const thumbnailUrlParamsRegexp = /\?w=100&h=100/;
 
 //The following block of tests verifies the basic functionality of example imagery and serves as a template for Imagery objects embedded in other objects.
 test.describe('Example Imagery Object', () => {
@@ -40,10 +40,10 @@ test.describe('Example Imagery Object', () => {
         await page.goto('./', { waitUntil: 'networkidle' });
 
         // Create a default 'Example Imagery' object
-        await createDomainObjectWithDefaults(page, { type: 'Example Imagery' });
+        const exampleImagery = await createDomainObjectWithDefaults(page, { type: 'Example Imagery' });
 
         // Verify that the created object is focused
-        await expect(page.locator('.l-browse-bar__object-name')).toContainText('Unnamed Example Imagery');
+        await expect(page.locator('.l-browse-bar__object-name')).toContainText(exampleImagery.name);
         await page.locator(backgroundImageSelector).hover({trial: true});
     });
 
@@ -188,7 +188,7 @@ test.describe('Example Imagery in Display Layout', () => {
         await page.click('button:has-text("Create")');
 
         // Click text=Example Imagery
-        await page.click('text=Example Imagery');
+        await page.click('li[role="menuitem"]:has-text("Example Imagery")');
 
         // Clear and set Image load delay to minimum value
         await page.locator('input[type="number"]').fill('');
@@ -197,7 +197,7 @@ test.describe('Example Imagery in Display Layout', () => {
         // Click text=OK
         await Promise.all([
             page.waitForNavigation({waitUntil: 'networkidle'}),
-            page.click('text=OK'),
+            page.click('button:has-text("OK")'),
             //Wait for Save Banner to appear
             page.waitForSelector('.c-message-banner__message')
         ]);
@@ -207,6 +207,58 @@ test.describe('Example Imagery in Display Layout', () => {
         await page.goto(displayLayout.url);
     });
 
+    test('View Large action pauses imagery when in realtime and returns to realtime', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/3647'
+        });
+
+        // Click time conductor mode button
+        await page.locator('.c-mode-button').click();
+
+        // set realtime mode
+        await page.locator('[data-testid="conductor-modeOption-realtime"]').click();
+
+        // pause/play button
+        const pausePlayButton = await page.locator('.c-button.pause-play');
+
+        await expect.soft(pausePlayButton).not.toHaveClass(/is-paused/);
+
+        // Open context menu and click view large menu item
+        await page.locator('button[title="View menu items"]').click();
+        await page.locator('li[title="View Large"]').click();
+        await expect(pausePlayButton).toHaveClass(/is-paused/);
+
+        await page.locator('[aria-label="Close"]').click();
+        await expect.soft(pausePlayButton).not.toHaveClass(/is-paused/);
+    });
+
+    test('View Large action leaves keeps realtime mode paused', async ({ page }) => {
+        test.info().annotations.push({
+            type: 'issue',
+            description: 'https://github.com/nasa/openmct/issues/3647'
+        });
+
+        // Click time conductor mode button
+        await page.locator('.c-mode-button').click();
+
+        // set realtime mode
+        await page.locator('[data-testid="conductor-modeOption-realtime"]').click();
+
+        // pause/play button
+        const pausePlayButton = await page.locator('.c-button.pause-play');
+        await pausePlayButton.click();
+        await expect.soft(pausePlayButton).toHaveClass(/is-paused/);
+
+        // Open context menu and click view large menu item
+        await page.locator('button[title="View menu items"]').click();
+        await page.locator('li[title="View Large"]').click();
+        await expect(pausePlayButton).toHaveClass(/is-paused/);
+
+        await page.locator('[aria-label="Close"]').click();
+        await expect.soft(pausePlayButton).toHaveClass(/is-paused/);
+    });
+
     test('Imagery View operations @unstable', async ({ page }) => {
         test.info().annotations.push({
             type: 'issue',
@@ -275,7 +327,7 @@ test.describe('Example Imagery in Flexible layout', () => {
         await page.click('button:has-text("Create")');
 
         // Click text=Example Imagery
-        await page.click('text=Example Imagery');
+        await page.click('li[role="menuitem"]:has-text("Example Imagery")');
 
         // Clear and set Image load delay to minimum value
         await page.locator('input[type="number"]').fill('');
@@ -284,7 +336,7 @@ test.describe('Example Imagery in Flexible layout', () => {
         // Click text=OK
         await Promise.all([
             page.waitForNavigation({waitUntil: 'networkidle'}),
-            page.click('text=OK'),
+            page.click('button:has-text("OK")'),
             //Wait for Save Banner to appear
             page.waitForSelector('.c-message-banner__message')
         ]);
@@ -317,7 +369,7 @@ test.describe('Example Imagery in Tabs View', () => {
         await page.click('button:has-text("Create")');
 
         // Click text=Example Imagery
-        await page.click('text=Example Imagery');
+        await page.click('li[role="menuitem"]:has-text("Example Imagery")');
 
         // Clear and set Image load delay to minimum value
         await page.locator('input[type="number"]').fill('');
@@ -326,7 +378,7 @@ test.describe('Example Imagery in Tabs View', () => {
         // Click text=OK
         await Promise.all([
             page.waitForNavigation({waitUntil: 'networkidle'}),
-            page.click('text=OK'),
+            page.click('button:has-text("OK")'),
             //Wait for Save Banner to appear
             page.waitForSelector('.c-message-banner__message')
         ]);
@@ -345,13 +397,11 @@ test.describe('Example Imagery in Time Strip', () => {
     test.beforeEach(async ({ page }) => {
         await page.goto('./', { waitUntil: 'networkidle' });
         timeStripObject = await createDomainObjectWithDefaults(page, {
-            type: 'Time Strip',
-            name: 'Time Strip'.concat(' ', uuid())
+            type: 'Time Strip'
         });
 
         await createDomainObjectWithDefaults(page, {
             type: 'Example Imagery',
-            name: 'Example Imagery'.concat(' ', uuid()),
             parent: timeStripObject.uuid
         });
         // Navigate to timestrip
@@ -362,17 +412,28 @@ test.describe('Example Imagery in Time Strip', () => {
             type: 'issue',
             description: 'https://github.com/nasa/openmct/issues/5632'
         });
+
+        // Hover over the timestrip to reveal a thumbnail image
         await page.locator('.c-imagery-tsv-container').hover();
-        // get url of the hovered image
-        const hoveredImg = page.locator('.c-imagery-tsv div.c-imagery-tsv__image-wrapper:hover img');
-        const hoveredImgSrc = await hoveredImg.getAttribute('src');
-        expect(hoveredImgSrc).toBeTruthy();
+
+        // Get the img src of the hovered image thumbnail
+        const hoveredThumbnailImg = page.locator('.c-imagery-tsv div.c-imagery-tsv__image-wrapper:hover img');
+        const hoveredThumbnailImgSrc = await hoveredThumbnailImg.getAttribute('src');
+
+        // Verify that imagery timestrip view uses the thumbnailUrl as img src for thumbnails
+        expect(hoveredThumbnailImgSrc).toBeTruthy();
+        expect(hoveredThumbnailImgSrc).toMatch(thumbnailUrlParamsRegexp);
+
+        // Click on the hovered thumbnail to open "View Large" view
         await page.locator('.c-imagery-tsv-container').click();
-        // get image of view large container
+
+        // Get the img src of the large view image
         const viewLargeImg = page.locator('img.c-imagery__main-image__image');
         const viewLargeImgSrc = await viewLargeImg.getAttribute('src');
         expect(viewLargeImgSrc).toBeTruthy();
-        expect(viewLargeImgSrc).toEqual(hoveredImgSrc);
+
+        // Verify that the image in the large view is the same as the hovered thumbnail
+        expect(viewLargeImgSrc).toEqual(hoveredThumbnailImgSrc.split('?')[0]);
     });
 });
 
@@ -389,6 +450,12 @@ test.describe('Example Imagery in Time Strip', () => {
  * @param {import('@playwright/test').Page} page
  */
 async function performImageryViewOperationsAndAssert(page) {
+    // Verify that imagery thumbnails use a thumbnail url
+    const thumbnailImages = page.locator('.c-thumb__image');
+    const mainImage = page.locator('.c-imagery__main-image__image');
+    await expect(thumbnailImages.first()).toHaveAttribute('src', thumbnailUrlParamsRegexp);
+    await expect(mainImage).not.toHaveAttribute('src', thumbnailUrlParamsRegexp);
+
     // Click previous image button
     const previousImageButton = page.locator('.c-nav--prev');
     await previousImageButton.click();

e2e/tests/functional/plugins/notebook/notebook.e2e.spec.js

@@ -24,9 +24,7 @@
 This test suite is dedicated to tests which verify the basic operations surrounding Notebooks.
 */
 
-// FIXME: Remove this eslint exception once tests are implemented
-// eslint-disable-next-line no-unused-vars
-const { test, expect } = require('../../../../baseFixtures');
+const { test, expect } = require('../../../../pluginFixtures');
 const { expandTreePaneItemByName, createDomainObjectWithDefaults } = require('../../../../appActions');
 const nbUtils = require('../../../../helper/notebookUtils');
 
@@ -265,71 +263,77 @@ test.describe('Notebook entry tests', () => {
     });
     test.fixme('new entries persist through navigation events without save', async ({ page }) => {});
     test.fixme('previous and new entries can be deleted', async ({ page }) => {});
-});
+    test.fixme('when a valid link is entered into a notebook entry, it becomes clickable when viewing', async ({ page }) => {
+        const TEST_LINK = 'http://www.google.com';
+        await page.goto('./#/browse/mine', { waitUntil: 'networkidle' });
 
-test.describe('Snapshot Menu tests', () => {
-    test.fixme('When no default notebook is selected, Snapshot Menu dropdown should only have a single option', async ({ page }) => {
-        // There should be no default notebook
-        // Clear default notebook if exists using `localStorage.setItem('notebook-storage', null);`
-        // refresh page
-        // Click on 'Notebook Snaphot Menu'
-        // 'save to Notebook Snapshots' should be only option there
-    });
-    test.fixme('When default notebook is updated selected, Snapshot Menu dropdown should list it as the newest option', async ({ page }) => {
-        // Create 2a notebooks
-        // Set Notebook A as Default
-        // Open Snapshot Menu and note that Notebook A is listed
-        // Close Snapshot Menu
-        // Set Default Notebook to Notebook B
-        // Open Snapshot Notebook and note that Notebook B is listed
-        // Select Default Notebook Option and verify that Snapshot is added to Notebook B
-    });
-    test.fixme('Can add Snapshots via Snapshot Menu and details are correct', async ({ page }) => {
-        //Note this should be a visual test, too
-        // Create Telemetry object
-        // Create A notebook with many pages and sections.
-        // Set page and section defaults to be between first and last of many. i.e. 3 of 5
-        // Navigate to Telemetry object
-        // Select Default Notebook Option and verify that Snapshot is added to Notebook A
-        // Verify Snapshot Details appear correctly
-    });
-    test.fixme('Snapshots adjust time conductor', async ({ page }) => {
-        // Create Telemetry object
-        // Set Telemetry object's timeconductor to Fixed time with Start and Endtimes are recorded
-        // Embed Telemetry object into notebook
-        // Set Time Conductor to Local clock
-        // Click into embedded telemetry object and verify object appears with same fixed time from record
-    });
-});
+        // Create Notebook
+        const notebook = await createDomainObjectWithDefaults(page, {
+            type: 'Notebook',
+            name: "Entry Link Test"
+        });
 
-test.describe('Snapshot Container tests', () => {
-    test.fixme('5 Snapshots can be added to a container', async ({ page }) => {});
-    test.fixme('5 Snapshots can be added to a container and Deleted with Delete All action', async ({ page }) => {});
-    test.fixme('A snapshot can be Deleted from Container', async ({ page }) => {});
-    test.fixme('A snapshot can be Previewed from Container', async ({ page }) => {});
-    test.fixme('A snapshot Container can be open and closed', async ({ page }) => {});
-    test.fixme('Can add object to Snapshot container and pull into notebook and create a new entry', async ({ page }) => {
-        //Create Notebook
-        //Create Telemetry Object
-        //From Telemetry Object, use 'save to Notebook Snapshots'
-        //Snapshots indicator should blink, click on it to view snapshots
-        //Navigate to Notebook
-        //Drag and Drop onto droppable area for new entry
-        //New Entry created with given snapshot added
-        //Snapshot removed from container?
+        await expandTreePaneItemByName(page, 'My Items');
+
+        await page.goto(notebook.url);
+
+        await nbUtils.enterTextEntry(page, `This should be a link: ${TEST_LINK} is it?`);
+
+        const validLink = page.locator(`a[href="${TEST_LINK}"]`);
+
+        // Start waiting for popup before clicking. Note no await.
+        const popupPromise = page.waitForEvent('popup');
+
+        await validLink.click();
+        const popup = await popupPromise;
+
+        // Wait for the popup to load.
+        await popup.waitForLoadState();
+        expect.soft(popup.url()).toContain('www.google.com');
+
+        expect(await validLink.count()).toBe(1);
     });
-    test.fixme('Can add object to Snapshot container and pull into notebook and existing entry', async ({ page }) => {
-        //Create Notebook
-        //Create Telemetry Object
-        //From Telemetry Object, use 'save to Notebook Snapshots'
-        //Snapshots indicator should blink, click on it to view snapshots
-        //Navigate to Notebook
-        //Drag and Drop into exiting entry
-        //Existing Entry updated with given snapshot
-        //Snapshot removed from container?
+    test.fixme('when an invalid link is entered into a notebook entry, it does not become clickable when viewing', async ({ page }) => {
+        const TEST_LINK = 'www.google.com';
+        await page.goto('./#/browse/mine', { waitUntil: 'networkidle' });
+
+        // Create Notebook
+        const notebook = await createDomainObjectWithDefaults(page, {
+            type: 'Notebook',
+            name: "Entry Link Test"
+        });
+
+        await expandTreePaneItemByName(page, 'My Items');
+
+        await page.goto(notebook.url);
+
+        await nbUtils.enterTextEntry(page, `This should NOT be a link: ${TEST_LINK} is it?`);
+
+        const invalidLink = page.locator(`a[href="${TEST_LINK}"]`);
+
+        expect(await invalidLink.count()).toBe(0);
     });
-    test.fixme('Verify Embedded options for PNG, JPG, and Annotate work correctly', async ({ page }) => {
-        //Add snapshot to container
-        //Verify PNG, JPG, and Annotate buttons work correctly
+    test.fixme('when a nefarious link is entered into a notebook entry, it is sanitized when viewing', async ({ page }) => {
+        const TEST_LINK = 'http://www.google.com?bad=';
+        const TEST_LINK_BAD = `http://www.google.com?bad=<script>alert('gimme your cookies')</script>`;
+        await page.goto('./#/browse/mine', { waitUntil: 'networkidle' });
+
+        // Create Notebook
+        const notebook = await createDomainObjectWithDefaults(page, {
+            type: 'Notebook',
+            name: "Entry Link Test"
+        });
+
+        await expandTreePaneItemByName(page, 'My Items');
+
+        await page.goto(notebook.url);
+
+        await nbUtils.enterTextEntry(page, `This should be a link, BUT not a bad link: ${TEST_LINK_BAD} is it?`);
+
+        const sanitizedLink = page.locator(`a[href="${TEST_LINK}"]`);
+        const unsanitizedLink = page.locator(`a[href="${TEST_LINK_BAD}"]`);
+
+        expect.soft(await sanitizedLink.count()).toBe(1);
+        expect(await unsanitizedLink.count()).toBe(0);
     });
 });

e2e/tests/functional/plugins/notebook/notebookSnapshots.e2e.spec.js

@@ -0,0 +1,134 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2022, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/*
+This test suite is dedicated to tests which verify the basic operations surrounding Notebooks.
+*/
+
+const { test, expect } = require('../../../../pluginFixtures');
+// const { expandTreePaneItemByName, createDomainObjectWithDefaults } = require('../../../../appActions');
+// const nbUtils = require('../../../../helper/notebookUtils');
+
+test.describe('Snapshot Menu tests', () => {
+    test.fixme('When no default notebook is selected, Snapshot Menu dropdown should only have a single option', async ({ page }) => {
+        // There should be no default notebook
+        // Clear default notebook if exists using `localStorage.setItem('notebook-storage', null);`
+        // refresh page
+        // Click on 'Notebook Snaphot Menu'
+        // 'save to Notebook Snapshots' should be only option there
+    });
+    test.fixme('When default notebook is updated selected, Snapshot Menu dropdown should list it as the newest option', async ({ page }) => {
+        // Create 2a notebooks
+        // Set Notebook A as Default
+        // Open Snapshot Menu and note that Notebook A is listed
+        // Close Snapshot Menu
+        // Set Default Notebook to Notebook B
+        // Open Snapshot Notebook and note that Notebook B is listed
+        // Select Default Notebook Option and verify that Snapshot is added to Notebook B
+    });
+    test.fixme('Can add Snapshots via Snapshot Menu and details are correct', async ({ page }) => {
+        //Note this should be a visual test, too
+        // Create Telemetry object
+        // Create A notebook with many pages and sections.
+        // Set page and section defaults to be between first and last of many. i.e. 3 of 5
+        // Navigate to Telemetry object
+        // Select Default Notebook Option and verify that Snapshot is added to Notebook A
+        // Verify Snapshot Details appear correctly
+    });
+    test.fixme('Snapshots adjust time conductor', async ({ page }) => {
+        // Create Telemetry object
+        // Set Telemetry object's timeconductor to Fixed time with Start and Endtimes are recorded
+        // Embed Telemetry object into notebook
+        // Set Time Conductor to Local clock
+        // Click into embedded telemetry object and verify object appears with same fixed time from record
+    });
+});
+
+test.describe('Snapshot Container tests', () => {
+    test.beforeEach(async ({ page }) => {
+        //Navigate to baseURL
+        await page.goto('./', { waitUntil: 'networkidle' });
+
+        // Create Notebook
+        // const notebook = await createDomainObjectWithDefaults(page, {
+        //     type: 'Notebook',
+        //     name: "Test Notebook"
+        // });
+        // // Create Overlay Plot
+        // const snapShotObject = await createDomainObjectWithDefaults(page, {
+        //     type: 'Overlay Plot',
+        //     name: "Dropped Overlay Plot"
+        // });
+
+        await page.getByRole('button', { name: ' Snapshot ' }).click();
+        await page.getByRole('menuitem', { name: ' Save to Notebook Snapshots' }).click();
+        await page.getByRole('button', { name: 'Show' }).click();
+
+    });
+    test.fixme('5 Snapshots can be added to a container', async ({ page }) => {});
+    test.fixme('5 Snapshots can be added to a container and Deleted with Delete All action', async ({ page }) => {});
+    test.fixme('A snapshot can be Deleted from Container with 3 dot action menu', async ({ page }) => {});
+    test.fixme('A snapshot can be Viewed, Annotated, display deleted, and saved from Container with 3 dot action menu', async ({ page }) => {
+        await page.locator('.c-snapshot.c-ne__embed').first().getByTitle('More options').click();
+        await page.getByRole('menuitem', { name: ' View Snapshot' }).click();
+        await expect(page.locator('.c-overlay__outer')).toBeVisible();
+        await page.getByTitle('Annotate').click();
+        await expect(page.locator('#snap-annotation-canvas')).toBeVisible();
+        await page.getByRole('button', { name: '' }).click();
+        // await expect(page.locator('#snap-annotation-canvas')).not.toBeVisible();
+        await page.getByRole('button', { name: 'Save' }).click();
+        await page.getByRole('button', { name: 'Done' }).click();
+        //await expect(await page.locator)
+    });
+    test('A snapshot can be Quick Viewed from Container with 3 dot action menu', async ({ page }) => {
+        await page.locator('.c-snapshot.c-ne__embed').first().getByTitle('More options').click();
+        await page.getByRole('menuitem', { name: 'Quick View' }).click();
+        await expect(page.locator('.c-overlay__outer')).toBeVisible();
+    });
+    test.fixme('A snapshot can be Navigated To from Container with 3 dot action menu', async ({ page }) => {});
+    test.fixme('A snapshot can be Navigated To Item in Time from Container with 3 dot action menu', async ({ page }) => {});
+    test.fixme('A snapshot Container can be open and closed', async ({ page }) => {});
+    test.fixme('Can add object to Snapshot container and pull into notebook and create a new entry', async ({ page }) => {
+        //Create Notebook
+        //Create Telemetry Object
+        //From Telemetry Object, use 'save to Notebook Snapshots'
+        //Snapshots indicator should blink, click on it to view snapshots
+        //Navigate to Notebook
+        //Drag and Drop onto droppable area for new entry
+        //New Entry created with given snapshot added
+        //Snapshot removed from container?
+    });
+    test.fixme('Can add object to Snapshot container and pull into notebook and existing entry', async ({ page }) => {
+        //Create Notebook
+        //Create Telemetry Object
+        //From Telemetry Object, use 'save to Notebook Snapshots'
+        //Snapshots indicator should blink, click on it to view snapshots
+        //Navigate to Notebook
+        //Drag and Drop into exiting entry
+        //Existing Entry updated with given snapshot
+        //Snapshot removed from container?
+    });
+    test.fixme('Verify Embedded options for PNG, JPG, and Annotate work correctly', async ({ page }) => {
+        //Add snapshot to container
+        //Verify PNG, JPG, and Annotate buttons work correctly
+    });
+});

e2e/tests/functional/plugins/notebook/notebookWithCouchDB.e2e.spec.js

@@ -24,7 +24,7 @@
 This test suite is dedicated to tests which verify the basic operations surrounding Notebooks with CouchDB.
 */
 
-const { test, expect } = require('../../../../baseFixtures');
+const { test, expect } = require('../../../../pluginFixtures');
 const { createDomainObjectWithDefaults } = require('../../../../appActions');
 
 test.describe('Notebook Tests with CouchDB @couchdb', () => {
@@ -76,6 +76,7 @@ test.describe('Notebook Tests with CouchDB @couchdb', () => {
         await page.locator('text=To start a new entry, click here or drag and drop any object').click();
         await page.locator('[aria-label="Notebook Entry Input"]').click();
         await page.locator('[aria-label="Notebook Entry Input"]').fill(`First Entry`);
+        await page.locator('[aria-label="Notebook Entry Input"]').press('Enter');
         await page.waitForLoadState('networkidle');
         expect(addingNotebookElementsRequests.length).toBeLessThanOrEqual(2);
 
@@ -148,14 +149,17 @@ test.describe('Notebook Tests with CouchDB @couchdb', () => {
         await page.locator('text=To start a new entry, click here or drag and drop any object').click();
         await page.locator('[aria-label="Notebook Entry Input"]').click();
         await page.locator('[aria-label="Notebook Entry Input"]').fill(`First Entry`);
+        await page.locator('[aria-label="Notebook Entry Input"]').press('Enter');
 
         await page.locator('text=To start a new entry, click here or drag and drop any object').click();
         await page.locator('[aria-label="Notebook Entry Input"] >> nth=1').click();
         await page.locator('[aria-label="Notebook Entry Input"] >> nth=1').fill(`Second Entry`);
+        await page.locator('[aria-label="Notebook Entry Input"] >> nth=1').press('Enter');
 
         await page.locator('text=To start a new entry, click here or drag and drop any object').click();
         await page.locator('[aria-label="Notebook Entry Input"] >> nth=2').click();
         await page.locator('[aria-label="Notebook Entry Input"] >> nth=2').fill(`Third Entry`);
+        await page.locator('[aria-label="Notebook Entry Input"] >> nth=2').press('Enter');
 
         // Add three tags
         await page.hover(`button:has-text("Add Tag") >> nth=2`);

e2e/tests/functional/plugins/notebook/restrictedNotebook.e2e.spec.js

@@ -36,27 +36,27 @@ test.describe('Restricted Notebook', () => {
     });
 
     test('Can be renamed @addInit', async ({ page }) => {
-        await expect(page.locator('.l-browse-bar__object-name')).toContainText(`Unnamed ${CUSTOM_NAME}`);
+        await expect(page.locator('.l-browse-bar__object-name')).toContainText(`${notebook.name}`);
     });
 
-    test('Can be deleted if there are no locked pages @addInit', async ({ page, openmctConfig }) => {
+    test('Can be deleted if there are no locked pages @addInit', async ({ page }) => {
         await openObjectTreeContextMenu(page, notebook.url);
 
         const menuOptions = page.locator('.c-menu ul');
         await expect.soft(menuOptions).toContainText('Remove');
 
-        const restrictedNotebookTreeObject = page.locator(`a:has-text("Unnamed ${CUSTOM_NAME}")`);
+        const restrictedNotebookTreeObject = page.locator(`a:has-text("${notebook.name}")`);
 
         // notebook tree object exists
         expect.soft(await restrictedNotebookTreeObject.count()).toEqual(1);
 
         // Click Remove Text
-        await page.locator('text=Remove').click();
+        await page.locator('li[role="menuitem"]:has-text("Remove")').click();
 
         // Click 'OK' on confirmation window and wait for save banner to appear
         await Promise.all([
             page.waitForNavigation(),
-            page.locator('text=OK').click(),
+            page.locator('button:has-text("OK")').click(),
             page.waitForSelector('.c-message-banner__message')
         ]);
 
@@ -134,7 +134,7 @@ test.describe('Restricted Notebook with at least one entry and with the page loc
         // Click text=Ok
         await Promise.all([
             page.waitForNavigation(),
-            page.locator('text=Ok').click()
+            page.locator('button:has-text("OK")').click()
         ]);
 
         // deleted page, should no longer exist
@@ -145,15 +145,14 @@ test.describe('Restricted Notebook with at least one entry and with the page loc
 
 test.describe('Restricted Notebook with a page locked and with an embed @addInit', () => {
 
-    test.beforeEach(async ({ page, openmctConfig }) => {
-        const { myItemsFolderName } = openmctConfig;
-        await startAndAddRestrictedNotebookObject(page);
-        await nbUtils.dragAndDropEmbed(page, myItemsFolderName);
+    test.beforeEach(async ({ page }) => {
+        const notebook = await startAndAddRestrictedNotebookObject(page);
+        await nbUtils.dragAndDropEmbed(page, notebook);
     });
 
     test('Allows embeds to be deleted if page unlocked @addInit', async ({ page }) => {
         // Click .c-ne__embed__name .c-popup-menu-button
-        await page.locator('.c-ne__embed__name .c-popup-menu-button').click(); // embed popup menu
+        await page.locator('.c-ne__embed__name .c-icon-button').click(); // embed popup menu
 
         const embedMenu = page.locator('body >> .c-menu');
         await expect(embedMenu).toContainText('Remove This Embed');
@@ -162,7 +161,7 @@ test.describe('Restricted Notebook with a page locked and with an embed @addInit
     test('Disallows embeds to be deleted if page locked @addInit', async ({ page }) => {
         await lockPage(page);
         // Click .c-ne__embed__name .c-popup-menu-button
-        await page.locator('.c-ne__embed__name .c-popup-menu-button').click(); // embed popup menu
+        await page.locator('.c-ne__embed__name .c-icon-button').click(); // embed popup menu
 
         const embedMenu = page.locator('body >> .c-menu');
         await expect(embedMenu).not.toContainText('Remove This Embed');

e2e/tests/functional/plugins/notebook/tags.e2e.spec.js

@@ -36,7 +36,7 @@ async function createNotebookAndEntry(page, iterations = 1) {
     //Go to baseURL
     await page.goto('./', { waitUntil: 'networkidle' });
 
-    createDomainObjectWithDefaults(page, { type: 'Notebook' });
+    const notebook = createDomainObjectWithDefaults(page, { type: 'Notebook' });
 
     for (let iteration = 0; iteration < iterations; iteration++) {
         // Create an entry
@@ -44,7 +44,10 @@ async function createNotebookAndEntry(page, iterations = 1) {
         const entryLocator = `[aria-label="Notebook Entry Input"] >> nth = ${iteration}`;
         await page.locator(entryLocator).click();
         await page.locator(entryLocator).fill(`Entry ${iteration}`);
+        await page.locator(entryLocator).press('Enter');
     }
+
+    return notebook;
 }
 
 /**
@@ -53,13 +56,15 @@ async function createNotebookAndEntry(page, iterations = 1) {
   * @param {number} [iterations = 1] - the number of entries (and tags) to create
   */
 async function createNotebookEntryAndTags(page, iterations = 1) {
-    await createNotebookAndEntry(page, iterations);
+    const notebook = await createNotebookAndEntry(page, iterations);
+    await page.locator('text=Annotations').click();
 
     for (let iteration = 0; iteration < iterations; iteration++) {
         // Hover and click "Add Tag" button
         // Hover is needed here to "slow down" the actions while running in headless mode
-        await page.hover(`button:has-text("Add Tag") >> nth = ${iteration}`);
-        await page.locator(`button:has-text("Add Tag") >> nth = ${iteration}`).click();
+        await page.locator(`[aria-label="Notebook Entry"] >> nth = ${iteration}`).click();
+        await page.hover(`button:has-text("Add Tag")`);
+        await page.locator(`button:has-text("Add Tag")`).click();
 
         // Click inside the tag search input
         await page.locator('[placeholder="Type to select tag"]').click();
@@ -68,19 +73,23 @@ async function createNotebookEntryAndTags(page, iterations = 1) {
 
         // Hover and click "Add Tag" button
         // Hover is needed here to "slow down" the actions while running in headless mode
-        await page.hover(`button:has-text("Add Tag") >> nth = ${iteration}`);
-        await page.locator(`button:has-text("Add Tag") >> nth = ${iteration}`).click();
+        await page.hover(`button:has-text("Add Tag")`);
+        await page.locator(`button:has-text("Add Tag")`).click();
         // Click inside the tag search input
         await page.locator('[placeholder="Type to select tag"]').click();
         // Select the "Science" tag
         await page.locator('[aria-label="Autocomplete Options"] >> text=Science').click();
     }
+
+    return notebook;
 }
 
 test.describe('Tagging in Notebooks @addInit', () => {
     test('Can load tags', async ({ page }) => {
-
         await createNotebookAndEntry(page);
+
+        await page.locator('text=Annotations').click();
+
         await page.locator('button:has-text("Add Tag")').click();
 
         await page.locator('[placeholder="Type to select tag"]').click();
@@ -121,13 +130,12 @@ test.describe('Tagging in Notebooks @addInit', () => {
 
     test('Can delete tags', async ({ page }) => {
         await createNotebookEntryAndTags(page);
-        await page.locator('[aria-label="Notebook Entries"]').click();
         // Delete Driving
         await page.hover('[aria-label="Tag"]:has-text("Driving")');
         await page.locator('[aria-label="Tag"]:has-text("Driving") ~ .c-completed-tag-deletion').click();
 
-        await expect(page.locator('[aria-label="Notebook Entry"]')).toContainText("Science");
-        await expect(page.locator('[aria-label="Notebook Entry"]')).not.toContainText("Driving");
+        await expect(page.locator('[aria-label="Tags Inspector"]')).toContainText("Science");
+        await expect(page.locator('[aria-label="Tags Inspector"]')).not.toContainText("Driving");
 
         await page.locator('[aria-label="OpenMCT Search"] input[type="search"]').fill('sc');
         await expect(page.locator('[aria-label="Search Result"]')).not.toContainText("Driving");
@@ -173,10 +181,10 @@ test.describe('Tagging in Notebooks @addInit', () => {
         //Go to baseURL
         await page.goto('./', { waitUntil: 'networkidle' });
 
-        await createDomainObjectWithDefaults(page, { type: 'Clock' });
+        const clock = await createDomainObjectWithDefaults(page, { type: 'Clock' });
 
         const ITERATIONS = 4;
-        await createNotebookEntryAndTags(page, ITERATIONS);
+        const notebook = await createNotebookEntryAndTags(page, ITERATIONS);
 
         for (let iteration = 0; iteration < ITERATIONS; iteration++) {
             const entryLocator = `[aria-label="Notebook Entry"] >> nth = ${iteration}`;
@@ -189,11 +197,18 @@ test.describe('Tagging in Notebooks @addInit', () => {
             page.goto('./#/browse/mine?hideTree=false'),
             page.click('.c-disclosure-triangle')
         ]);
-        // Click Unnamed Clock
-        await page.click('text="Unnamed Clock"');
 
-        // Click Unnamed Notebook
-        await page.click('text="Unnamed Notebook"');
+        const treePane = page.getByRole('tree', {
+            name: 'Main Tree'
+        });
+        // Click Clock
+        await treePane.getByRole('treeitem', {
+            name: clock.name
+        }).click();
+        // Click Notebook
+        await page.getByRole('treeitem', {
+            name: notebook.name
+        }).click();
 
         for (let iteration = 0; iteration < ITERATIONS; iteration++) {
             const entryLocator = `[aria-label="Notebook Entry"] >> nth = ${iteration}`;
@@ -207,14 +222,13 @@ test.describe('Tagging in Notebooks @addInit', () => {
             page.waitForLoadState('networkidle')
         ]);
 
-        // Click Unnamed Notebook
-        await page.click('text="Unnamed Notebook"');
+        // Click Notebook
+        await page.click(`text="${notebook.name}"`);
 
         for (let iteration = 0; iteration < ITERATIONS; iteration++) {
             const entryLocator = `[aria-label="Notebook Entry"] >> nth = ${iteration}`;
             await expect(page.locator(entryLocator)).toContainText("Science");
             await expect(page.locator(entryLocator)).toContainText("Driving");
         }
-
     });
 });

e2e/tests/functional/plugins/operatorStatus/operatorStatus.e2e.spec.js

@@ -0,0 +1,156 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2023, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/*
+* This test suite is dedicated to testing the operator status plugin.
+*/
+
+const path = require('path');
+const { test, expect } = require('../../../../pluginFixtures');
+
+/*
+
+Precondition: Inject Example User, Operator Status Plugins
+Verify that user 1 sees updates from user/role 2 (Not possible without openmct-yamcs implementation)
+
+Clear Role Status of single user test
+STUB (test.fixme) Rolling through each
+
+*/
+
+test.describe('Operator Status', () => {
+    test.beforeEach(async ({ page }) => {
+        // FIXME: determine if plugins will be added to index.html or need to be injected
+        // eslint-disable-next-line no-undef
+        await page.addInitScript({ path: path.join(__dirname, '../../../../helper/', 'addInitExampleUser.js')});
+        // eslint-disable-next-line no-undef
+        await page.addInitScript({ path: path.join(__dirname, '../../../../helper/', 'addInitOperatorStatus.js')});
+        await page.goto('./', { waitUntil: 'networkidle' });
+    });
+
+    // verify that operator status is visible
+    test('operator status is visible and expands when clicked', async ({ page }) => {
+        await expect(page.locator('div[title="Set my operator status"]')).toBeVisible();
+        await page.locator('div[title="Set my operator status"]').click();
+
+        // expect default status to be 'GO'
+        await expect(page.locator('.c-status-poll-panel')).toBeVisible();
+    });
+
+    test('poll question indicator remains when blank poll set', async ({ page }) => {
+        await expect(page.locator('div[title="Set the current poll question"]')).toBeVisible();
+        await page.locator('div[title="Set the current poll question"]').click();
+        // set to blank
+        await page.getByRole('button', { name: 'Update' }).click();
+
+        // should still be visible
+        await expect(page.locator('div[title="Set the current poll question"]')).toBeVisible();
+    });
+
+    // Verify that user 1 sees updates from user/role 2 (Not possible without openmct-yamcs implementation)
+    test('operator status table reflects answered values', async ({ page }) => {
+        // user navigates to operator status poll
+        const statusPollIndicator = page.locator('div[title="Set my operator status"]');
+        await statusPollIndicator.click();
+
+        // get user role value
+        const userRole = page.locator('.c-status-poll-panel__user-role');
+        const userRoleText = await userRole.innerText();
+
+        // get selected status value
+        const selectStatus = page.locator('select[name="setStatus"]');
+        await selectStatus.selectOption({ index: 1});
+        const initialStatusValue = await selectStatus.inputValue();
+
+        // open manage status poll
+        const manageStatusPollIndicator = page.locator('div[title="Set the current poll question"]');
+        await manageStatusPollIndicator.click();
+        // parse the table row values
+        const row = page.locator(`tr:has-text("${userRoleText}")`);
+        const rowValues = await row.innerText();
+        const rowValuesArr = rowValues.split('\t');
+        const COLUMN_STATUS_INDEX = 1;
+        // check initial set value matches status table
+        expect(rowValuesArr[COLUMN_STATUS_INDEX].toLowerCase())
+            .toEqual(initialStatusValue.toLowerCase());
+
+        // change user status
+        await statusPollIndicator.click();
+        // FIXME: might want to grab a dynamic option instead of arbitrary
+        await page.locator('select[name="setStatus"]').selectOption({ index: 2});
+        const updatedStatusValue = await selectStatus.inputValue();
+        // verify user status is reflected in table
+        await manageStatusPollIndicator.click();
+
+        const updatedRow = page.locator(`tr:has-text("${userRoleText}")`);
+        const updatedRowValues = await updatedRow.innerText();
+        const updatedRowValuesArr = updatedRowValues.split('\t');
+
+        expect(updatedRowValuesArr[COLUMN_STATUS_INDEX].toLowerCase())
+            .toEqual(updatedStatusValue.toLowerCase());
+
+    });
+
+    test('clear poll button removes poll responses', async ({ page }) => {
+        // user navigates to operator status poll
+        const statusPollIndicator = page.locator('div[title="Set my operator status"]');
+        await statusPollIndicator.click();
+
+        // get user role value
+        const userRole = page.locator('.c-status-poll-panel__user-role');
+        const userRoleText = await userRole.innerText();
+
+        // get selected status value
+        const selectStatus = page.locator('select[name="setStatus"]');
+        // FIXME: might want to grab a dynamic option instead of arbitrary
+        await selectStatus.selectOption({ index: 1});
+        const initialStatusValue = await selectStatus.inputValue();
+
+        // open manage status poll
+        const manageStatusPollIndicator = page.locator('div[title="Set the current poll question"]');
+        await manageStatusPollIndicator.click();
+        // parse the table row values
+        const row = page.locator(`tr:has-text("${userRoleText}")`);
+        const rowValues = await row.innerText();
+        const rowValuesArr = rowValues.split('\t');
+        const COLUMN_STATUS_INDEX = 1;
+        // check initial set value matches status table
+        expect(rowValuesArr[COLUMN_STATUS_INDEX].toLowerCase())
+            .toEqual(initialStatusValue.toLowerCase());
+
+        // clear the poll
+        await page.locator('button[title="Clear the previous poll question"]').click();
+
+        const updatedRow = page.locator(`tr:has-text("${userRoleText}")`);
+        const updatedRowValues = await updatedRow.innerText();
+        const updatedRowValuesArr = updatedRowValues.split('\t');
+        const UNSET_VALUE_LABEL = 'Not set';
+        expect(updatedRowValuesArr[COLUMN_STATUS_INDEX])
+            .toEqual(UNSET_VALUE_LABEL);
+
+    });
+
+    test.fixme('iterate through all possible response values', async ({ page }) => {
+        // test all possible respone values for the poll
+    });
+
+});

e2e/tests/functional/plugins/plot/autoscale.e2e.spec.js

@@ -32,7 +32,7 @@ test.use({
     }
 });
 
-test.describe('ExportAsJSON', () => {
+test.fixme('ExportAsJSON', () => {
     test('User can set autoscale with a valid range @snapshot', async ({ page, openmctConfig }) => {
         const { myItemsFolderName } = openmctConfig;
 
@@ -110,10 +110,10 @@ async function createSinewaveOverlayPlot(page, myItemsFolderName) {
     await page.locator('button:has-text("Create")').click();
 
     // add overlay plot with defaults
-    await page.locator('li:has-text("Overlay Plot")').click();
+    await page.locator('li[role="menuitem"]:has-text("Overlay Plot")').click();
     await Promise.all([
         page.waitForNavigation(),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear1
         page.waitForSelector('.c-message-banner__message')
     ]);
@@ -129,10 +129,10 @@ async function createSinewaveOverlayPlot(page, myItemsFolderName) {
     await page.locator('button:has-text("Create")').click();
 
     // add sine wave generator with defaults
-    await page.locator('li:has-text("Sine Wave Generator")').click();
+    await page.locator('li[role="menuitem"]:has-text("Sine Wave Generator")').click();
     await Promise.all([
         page.waitForNavigation(),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear1
         page.waitForSelector('.c-message-banner__message')
     ]);
@@ -156,7 +156,7 @@ async function turnOffAutoscale(page) {
     await page.locator('text=Unnamed Overlay Plot Snapshot >> button').nth(3).click();
 
     // uncheck autoscale
-    await page.locator('text=Y Axis Label Log mode Auto scale Padding >> input[type="checkbox"] >> nth=1').uncheck();
+    await page.getByRole('listitem').filter({ hasText: 'Auto scale' }).getByRole('checkbox').uncheck();
 
     // save
     await page.locator('text=Snapshot Save and Finish Editing Save and Continue Editing >> button').nth(1).click();

e2e/tests/functional/plugins/plot/logPlot.e2e.spec.js

@@ -88,10 +88,10 @@ async function makeOverlayPlot(page, myItemsFolderName) {
     // create overlay plot
 
     await page.locator('button.c-create-button').click();
-    await page.locator('li:has-text("Overlay Plot")').click();
+    await page.locator('li[role="menuitem"]:has-text("Overlay Plot")').click();
     await Promise.all([
         page.waitForNavigation({ waitUntil: 'networkidle'}),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear
         page.waitForSelector('.c-message-banner__message')
     ]);
@@ -106,7 +106,7 @@ async function makeOverlayPlot(page, myItemsFolderName) {
     // create a sinewave generator
 
     await page.locator('button.c-create-button').click();
-    await page.locator('li:has-text("Sine Wave Generator")').click();
+    await page.locator('li[role="menuitem"]:has-text("Sine Wave Generator")').click();
 
     // set amplitude to 6, offset 4, period 2
 
@@ -123,7 +123,7 @@ async function makeOverlayPlot(page, myItemsFolderName) {
 
     await Promise.all([
         page.waitForNavigation({ waitUntil: 'networkidle'}),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear
         page.waitForSelector('.c-message-banner__message')
     ]);
@@ -205,7 +205,8 @@ async function enableEditMode(page) {
  */
 async function enableLogMode(page) {
     // turn on log mode
-    await page.locator('text=Y Axis Label Log mode Auto scale Padding >> input[type="checkbox"]').first().check();
+    await page.getByRole('listitem').filter({ hasText: 'Log mode' }).getByRole('checkbox').check();
+    // await page.locator('text=Y Axis Label Log mode Auto scale Padding >> input[type="checkbox"]').first().check();
 }
 
 /**
@@ -213,7 +214,7 @@ async function enableLogMode(page) {
  */
 async function disableLogMode(page) {
     // turn off log mode
-    await page.locator('text=Y Axis Label Log mode Auto scale Padding >> input[type="checkbox"]').first().uncheck();
+    await page.getByRole('listitem').filter({ hasText: 'Log mode' }).getByRole('checkbox').uncheck();
 }
 
 /**

e2e/tests/functional/plugins/plot/missingPlotObj.e2e.spec.js

@@ -88,11 +88,11 @@ async function makeStackedPlot(page, myItemsFolderName) {
 
     // create stacked plot
     await page.locator('button.c-create-button').click();
-    await page.locator('li:has-text("Stacked Plot")').click();
+    await page.locator('li[role="menuitem"]:has-text("Stacked Plot")').click();
 
     await Promise.all([
         page.waitForNavigation({ waitUntil: 'networkidle'}),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear
         page.waitForSelector('.c-message-banner__message')
     ]);
@@ -146,11 +146,11 @@ async function saveStackedPlot(page) {
 async function createSineWaveGenerator(page) {
     //Create sine wave generator
     await page.locator('button.c-create-button').click();
-    await page.locator('li:has-text("Sine Wave Generator")').click();
+    await page.locator('li[role="menuitem"]:has-text("Sine Wave Generator")').click();
 
     await Promise.all([
         page.waitForNavigation({ waitUntil: 'networkidle'}),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear
         page.waitForSelector('.c-message-banner__message')
     ]);

e2e/tests/functional/plugins/plot/overlayPlot.e2e.spec.js

@@ -0,0 +1,124 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2022, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/*
+Tests to verify log plot functionality. Note this test suite if very much under active development and should not
+necessarily be used for reference when writing new tests in this area.
+*/
+
+const { test, expect } = require('../../../../pluginFixtures');
+const { createDomainObjectWithDefaults } = require('../../../../appActions');
+
+test.describe('Overlay Plot', () => {
+    test('Plot legend color is in sync with plot series color', async ({ page }) => {
+        await page.goto('/', { waitUntil: 'networkidle' });
+        const overlayPlot = await createDomainObjectWithDefaults(page, {
+            type: "Overlay Plot"
+        });
+
+        await createDomainObjectWithDefaults(page, {
+            type: "Sine Wave Generator",
+            parent: overlayPlot.uuid
+        });
+
+        await page.goto(overlayPlot.url);
+
+        // navigate to plot series color palette
+        await page.click('.l-browse-bar__actions__edit');
+        await page.locator('li.c-tree__item.menus-to-left .c-disclosure-triangle').click();
+        await page.locator('.c-click-swatch--menu').click();
+        await page.locator('.c-palette__item[style="background: rgb(255, 166, 61);"]').click();
+
+        // gets color for swatch located in legend
+        const element = await page.waitForSelector('.plot-series-color-swatch');
+        const color = await element.evaluate((el) => {
+            return window.getComputedStyle(el).getPropertyValue('background-color');
+        });
+
+        expect(color).toBe('rgb(255, 166, 61)');
+    });
+    test('The elements pool supports dragging series into multiple y-axis buckets', async ({ page }) => {
+        await page.goto('/', { waitUntil: 'networkidle' });
+        const overlayPlot = await createDomainObjectWithDefaults(page, {
+            type: "Overlay Plot"
+        });
+
+        await createDomainObjectWithDefaults(page, {
+            type: "Sine Wave Generator",
+            name: 'swg a',
+            parent: overlayPlot.uuid
+        });
+        await createDomainObjectWithDefaults(page, {
+            type: "Sine Wave Generator",
+            name: 'swg b',
+            parent: overlayPlot.uuid
+        });
+        await createDomainObjectWithDefaults(page, {
+            type: "Sine Wave Generator",
+            name: 'swg c',
+            parent: overlayPlot.uuid
+        });
+        await createDomainObjectWithDefaults(page, {
+            type: "Sine Wave Generator",
+            name: 'swg d',
+            parent: overlayPlot.uuid
+        });
+        await createDomainObjectWithDefaults(page, {
+            type: "Sine Wave Generator",
+            name: 'swg e',
+            parent: overlayPlot.uuid
+        });
+
+        await page.goto(overlayPlot.url);
+        await page.click('button[title="Edit"]');
+
+        // Expand the elements pool vertically
+        await page.locator('.l-pane__handle').nth(2).hover({ trial: true });
+        await page.mouse.down();
+        await page.mouse.move(0, 100);
+        await page.mouse.up();
+
+        // Drag swg a, c, e into Y Axis 2
+        await page.locator('#inspector-elements-tree >> text=swg a').dragTo(page.locator('[aria-label="Element Item Group Y Axis 2"]'));
+        await page.locator('#inspector-elements-tree >> text=swg c').dragTo(page.locator('[aria-label="Element Item Group Y Axis 2"]'));
+        await page.locator('#inspector-elements-tree >> text=swg e').dragTo(page.locator('[aria-label="Element Item Group Y Axis 2"]'));
+
+        // Drag swg b into Y Axis 3
+        await page.locator('#inspector-elements-tree >> text=swg b').dragTo(page.locator('[aria-label="Element Item Group Y Axis 3"]'));
+
+        const yAxis1Group = page.getByLabel("Y Axis 1");
+        const yAxis2Group = page.getByLabel("Y Axis 2");
+        const yAxis3Group = page.getByLabel("Y Axis 3");
+
+        // Verify that the elements are in the correct buckets and in the correct order
+        expect(yAxis1Group.getByRole('listitem', { name: 'swg d' })).toBeTruthy();
+        expect(yAxis1Group.getByRole('listitem').nth(0).getByText('swg d')).toBeTruthy();
+        expect(yAxis2Group.getByRole('listitem', { name: 'swg e' })).toBeTruthy();
+        expect(yAxis2Group.getByRole('listitem').nth(0).getByText('swg e')).toBeTruthy();
+        expect(yAxis2Group.getByRole('listitem', { name: 'swg c' })).toBeTruthy();
+        expect(yAxis2Group.getByRole('listitem').nth(1).getByText('swg c')).toBeTruthy();
+        expect(yAxis2Group.getByRole('listitem', { name: 'swg a' })).toBeTruthy();
+        expect(yAxis2Group.getByRole('listitem').nth(2).getByText('swg a')).toBeTruthy();
+        expect(yAxis3Group.getByRole('listitem', { name: 'swg b' })).toBeTruthy();
+        expect(yAxis3Group.getByRole('listitem').nth(0).getByText('swg b')).toBeTruthy();
+    });
+});

e2e/tests/functional/plugins/plot/plotLegendSwatch.e2e.spec.js

@@ -68,10 +68,10 @@ async function makeOverlayPlot(page) {
     // create overlay plot
 
     await page.locator('button.c-create-button').click();
-    await page.locator('li:has-text("Overlay Plot")').click();
+    await page.locator('li[role="menuitem"]:has-text("Overlay Plot")').click();
     await Promise.all([
         page.waitForNavigation({ waitUntil: 'networkidle'}),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear
         page.waitForSelector('.c-message-banner__message')
     ]);
@@ -86,13 +86,13 @@ async function makeOverlayPlot(page) {
     // create a sinewave generator
 
     await page.locator('button.c-create-button').click();
-    await page.locator('li:has-text("Sine Wave Generator")').click();
+    await page.locator('li[role="menuitem"]:has-text("Sine Wave Generator")').click();
 
     // Click OK to make generator
 
     await Promise.all([
         page.waitForNavigation({ waitUntil: 'networkidle'}),
-        page.locator('text=OK').click(),
+        page.locator('button:has-text("OK")').click(),
         //Wait for Save Banner to appear
         page.waitForSelector('.c-message-banner__message')
     ]);

e2e/tests/functional/plugins/plot/plotRendering.e2e.spec.js

@@ -25,8 +25,8 @@
 *
 */
 
-const { test, expect } = require('../../../../baseFixtures');
-const { createDomainObjectWithDefaults } = require('../../../../appActions');
+const { test, expect } = require('../../../../pluginFixtures');
+const { createDomainObjectWithDefaults} = require('../../../../appActions');
 
 test.describe('Plot Integrity Testing @unstable', () => {
     let sineWaveGeneratorObject;
@@ -40,7 +40,6 @@ test.describe('Plot Integrity Testing @unstable', () => {
     test('Plots do not re-request data when a plot is clicked', async ({ page }) => {
         //Navigate to Sine Wave Generator
         await page.goto(sineWaveGeneratorObject.url);
-        //Capture the number of plots points and store as const name numberOfPlotPoints
         //Click on the plot canvas
         await page.locator('canvas').nth(1).click();
         //No request was made to get historical data
@@ -51,4 +50,90 @@ test.describe('Plot Integrity Testing @unstable', () => {
         });
         expect(createMineFolderRequests.length).toEqual(0);
     });
+
+    test('Plot is rendered when infinity values exist', async ({ page }) => {
+        // Edit Plot
+        await editSineWaveToUseInfinityOption(page, sineWaveGeneratorObject);
+
+        //Get pixel data from Canvas
+        const plotPixelSize = await getCanvasPixelsWithData(page);
+        expect(plotPixelSize).toBeGreaterThan(0);
+    });
 });
+
+/**
+ * This function edits a sine wave generator with the default options and enables the infinity values option.
+ *
+ * @param {import('@playwright/test').Page} page
+ * @param {import('../../../../appActions').CreateObjectInfo} sineWaveGeneratorObject
+ * @returns {Promise<CreatedObjectInfo>} An object containing information about the edited domain object.
+ */
+async function editSineWaveToUseInfinityOption(page, sineWaveGeneratorObject) {
+    await page.goto(sineWaveGeneratorObject.url);
+    // Edit LAD table
+    await page.locator('[title="More options"]').click();
+    await page.locator('[title="Edit properties of this object."]').click();
+    // Modify the infinity option to true
+    const infinityInput = page.locator('[aria-label="Include Infinity Values"]');
+    await infinityInput.click();
+
+    // Click OK button and wait for Navigate event
+    await Promise.all([
+        page.waitForLoadState(),
+        page.click('[aria-label="Save"]'),
+        // Wait for Save Banner to appear
+        page.waitForSelector('.c-message-banner__message')
+    ]);
+
+    // FIXME: Changes to SWG properties should be reflected on save, but they're not?
+    // Thus, navigate away and back to the object.
+    await page.goto('./#/browse/mine');
+    await page.goto(sineWaveGeneratorObject.url);
+
+    await page.locator('c-progress-bar c-telemetry-table__progress-bar').waitFor({
+        state: 'hidden'
+    });
+
+    // FIXME: The progress bar disappears on series data load, not on plot render,
+    // so wait for a half a second before evaluating the canvas.
+    // eslint-disable-next-line playwright/no-wait-for-timeout
+    await page.waitForTimeout(500);
+}
+
+/**
+ * @param {import('@playwright/test').Page} page
+ */
+async function getCanvasPixelsWithData(page) {
+    const getTelemValuePromise = new Promise(resolve => page.exposeFunction('getCanvasValue', resolve));
+
+    await page.evaluate(() => {
+        // The document canvas is where the plot points and lines are drawn.
+        // The only way to access the canvas is using document (using page.evaluate)
+        let data;
+        let canvas;
+        let ctx;
+        canvas = document.querySelector('canvas');
+        ctx = canvas.getContext('2d');
+        data = ctx.getImageData(0, 0, canvas.width, canvas.height).data;
+        const imageDataValues = Object.values(data);
+        let plotPixels = [];
+        // Each pixel consists of four values within the ImageData.data array. The for loop iterates by multiples of four.
+        // The values associated with each pixel are R (red), G (green), B (blue), and A (alpha), in that order.
+        for (let i = 0; i < imageDataValues.length;) {
+            if (imageDataValues[i] > 0) {
+                plotPixels.push({
+                    startIndex: i,
+                    endIndex: i + 3,
+                    value: `rgb(${imageDataValues[i]}, ${imageDataValues[i + 1]}, ${imageDataValues[i + 2]}, ${imageDataValues[i + 3]})`
+                });
+            }
+
+            i = i + 4;
+
+        }
+
+        window.getCanvasValue(plotPixels.length);
+    });
+
+    return getTelemValuePromise;
+}

e2e/tests/functional/plugins/plot/scatterPlot.e2e.spec.js

@@ -0,0 +1,93 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2022, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/*
+* This test suite is dedicated to testing the Scatter Plot component.
+*/
+
+const { test, expect } = require('../../../../pluginFixtures');
+const { createDomainObjectWithDefaults } = require('../../../../appActions');
+const uuid = require('uuid').v4;
+
+test.describe('Scatter Plot', () => {
+    let scatterPlot;
+
+    test.beforeEach(async ({ page }) => {
+        // Open a browser, navigate to the main page, and wait until all networkevents to resolve
+        await page.goto('./', { waitUntil: 'networkidle' });
+
+        // Create the Scatter Plot
+        scatterPlot = await createDomainObjectWithDefaults(page, { type: 'Scatter Plot' });
+    });
+
+    test('Can add and remove telemetry sources', async ({ page }) => {
+        const editButtonLocator = page.locator('button[title="Edit"]');
+        const saveButtonLocator = page.locator('button[title="Save"]');
+
+        // Create a sine wave generator within the scatter plot
+        const swg1 = await createDomainObjectWithDefaults(page, {
+            type: 'Sine Wave Generator',
+            name: `swg-${uuid()}`,
+            parent: scatterPlot.uuid
+        });
+
+        // Navigate to the scatter plot and verify that
+        // the SWG appears in the elements pool
+        await page.goto(scatterPlot.url);
+        await editButtonLocator.click();
+        await expect.soft(page.locator(`#inspector-elements-tree >> text=${swg1.name}`)).toBeVisible();
+        await saveButtonLocator.click();
+        await page.locator('li[title="Save and Finish Editing"]').click();
+
+        // Create another sine wave generator within the scatter plot
+        const swg2 = await createDomainObjectWithDefaults(page, {
+            type: 'Sine Wave Generator',
+            name: `swg-${uuid()}`,
+            parent: scatterPlot.uuid
+        });
+
+        // Verify that the 'Replace telemetry source' modal appears and accept it
+        await expect.soft(page.locator('text=This action will replace the current telemetry source. Do you want to continue?')).toBeVisible();
+        await page.click('text=Ok');
+
+        // Navigate to the scatter plot and verify that the new SWG
+        // appears in the elements pool and the old one is gone
+        await page.goto(scatterPlot.url);
+        await editButtonLocator.click();
+        await expect.soft(page.locator(`#inspector-elements-tree >> text=${swg1.name}`)).toBeHidden();
+        await expect.soft(page.locator(`#inspector-elements-tree >> text=${swg2.name}`)).toBeVisible();
+        await saveButtonLocator.click();
+
+        // Right click on the new SWG in the elements pool and delete it
+        await page.locator(`#inspector-elements-tree >> text=${swg2.name}`).click({
+            button: 'right'
+        });
+        await page.locator('li[title="Remove this object from its containing object."]').click();
+
+        // Verify that the 'Remove object' confirmation modal appears and accept it
+        await expect.soft(page.locator('text=Warning! This action will remove this object. Are you sure you want to continue?')).toBeVisible();
+        await page.click('text=Ok');
+
+        // Verify that the elements pool shows no elements
+        await expect(page.locator('text="No contained elements"')).toBeVisible();
+    });
+});

e2e/tests/functional/plugins/timeConductor/timeConductor.e2e.spec.js

@@ -20,7 +20,7 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
-const { test, expect } = require('../../../../baseFixtures');
+const { test, expect } = require('../../../../pluginFixtures');
 const { setFixedTimeMode, setRealTimeMode, setStartOffset, setEndOffset } = require('../../../../appActions');
 
 test.describe('Time conductor operations', () => {

e2e/tests/functional/plugins/timer/timer.e2e.spec.js

@@ -30,7 +30,7 @@ test.describe('Timer', () => {
         timer = await createDomainObjectWithDefaults(page, { type: 'timer' });
     });
 
-    test('Can perform actions on the Timer', async ({ page, openmctConfig }) => {
+    test('Can perform actions on the Timer', async ({ page }) => {
         test.info().annotations.push({
             type: 'issue',
             description: 'https://github.com/nasa/openmct/issues/4313'

e2e/tests/functional/recentObjects.e2e.spec.js

@@ -0,0 +1,85 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2023, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+const { test, expect } = require('../../pluginFixtures.js');
+const { createDomainObjectWithDefaults } = require('../../appActions.js');
+
+test.describe('Recent Objects', () => {
+    test('Recent Objects CRUD operations', async ({ page }) => {
+        await page.goto('./', { waitUntil: 'networkidle' });
+
+        // Create a folder and nest a Clock within it
+        const recentObjectsList = page.locator('[aria-label="Recent Objects"]');
+        const folderA = await createDomainObjectWithDefaults(page, {
+            type: 'Folder'
+        });
+        const clock = await createDomainObjectWithDefaults(page, {
+            type: 'Clock',
+            parent: folderA.uuid
+        });
+
+        // Drag the Recent Objects panel up a bit
+        await page.locator('div:nth-child(2) > .l-pane__handle').hover();
+        await page.mouse.down();
+        await page.mouse.move(0, 100);
+        await page.mouse.up();
+
+        // Verify that both created objects appear in the list and are in the correct order
+        expect(recentObjectsList.getByRole('listitem', { name: clock.name })).toBeTruthy();
+        expect(recentObjectsList.getByRole('listitem', { name: folderA.name })).toBeTruthy();
+        expect(recentObjectsList.getByRole('listitem', { name: clock.name }).locator('a').getByText(folderA.name)).toBeTruthy();
+        expect(recentObjectsList.getByRole('listitem').nth(0).getByText(clock.name)).toBeTruthy();
+        expect(recentObjectsList.getByRole('listitem', { name: clock.name }).locator('a').getByText(folderA.name)).toBeTruthy();
+        expect(recentObjectsList.getByRole('listitem').nth(1).getByText(folderA.name)).toBeTruthy();
+
+        // Navigate to the folder by clicking on the main object name in the recent objects list item
+        await recentObjectsList.getByRole('listitem', { name: folderA.name }).getByText(folderA.name).click();
+        await page.waitForURL(`**/${folderA.uuid}?*`);
+        expect(recentObjectsList.getByRole('listitem').nth(0).getByText(folderA.name)).toBeTruthy();
+
+        // Rename
+        folderA.name = `${folderA.name}-NEW!`;
+        await page.locator('.l-browse-bar__object-name').fill("");
+        await page.locator('.l-browse-bar__object-name').fill(folderA.name);
+        await page.keyboard.press('Enter');
+
+        // Verify rename has been applied in recent objects list item and objects paths
+        expect(page.getByRole('listitem', { name: clock.name }).locator('a').getByText(folderA.name)).toBeTruthy();
+        expect(recentObjectsList.getByRole('listitem', { name: folderA.name })).toBeTruthy();
+
+        // Delete
+        await page.click('button[title="Show selected item in tree"]');
+        // Delete the folder via the left tree pane treeitem context menu
+        await page.getByRole('treeitem', { name: new RegExp(folderA.name) }).locator('a').click({
+            button: 'right'
+        });
+        await page.getByRole('menuitem', { name: /Remove/ }).click();
+        await page.getByRole('button', { name: 'OK' }).click();
+
+        // Verify that the folder and clock are no longer in the recent objects list
+        await expect(recentObjectsList.getByRole('listitem', { name: folderA.name })).toBeHidden();
+        await expect(recentObjectsList.getByRole('listitem', { name: clock.name })).toBeHidden();
+    });
+    test.fixme("Clicking on the 'target button' scrolls the object into view in the tree and highlights it");
+    test.fixme("Clicking on an object in the path of a recent object navigates to the object");
+    test.fixme("Tests for context menu actions from recent objects");
+});

e2e/tests/functional/search.e2e.spec.js

@@ -31,7 +31,7 @@ test.describe('Grand Search', () => {
     test('Can search for objects, and subsequent search dropdown behaves properly', async ({ page, openmctConfig }) => {
         const { myItemsFolderName } = openmctConfig;
 
-        await createObjectsForSearch(page, myItemsFolderName);
+        const createdObjects = await createObjectsForSearch(page);
 
         // Click [aria-label="OpenMCT Search"] input[type="search"]
         await page.locator('[aria-label="OpenMCT Search"] input[type="search"]').click();
@@ -41,8 +41,8 @@ test.describe('Grand Search', () => {
         await expect(page.locator('[aria-label="Search Result"] >> nth=1')).toContainText(`Clock B ${myItemsFolderName} Red Folder Blue Folder`);
         await expect(page.locator('[aria-label="Search Result"] >> nth=2')).toContainText(`Clock C ${myItemsFolderName} Red Folder Blue Folder`);
         await expect(page.locator('[aria-label="Search Result"] >> nth=3')).toContainText(`Clock D ${myItemsFolderName} Red Folder Blue Folder`);
-        // Click text=Elements >> nth=0
-        await page.locator('text=Elements').first().click();
+        // Click the Elements pool to dismiss the search menu
+        await page.locator('.l-pane__label:has-text("Elements")').click();
         await expect(page.locator('[aria-label="Search Result"] >> nth=0')).toBeHidden();
 
         await page.locator('[aria-label="OpenMCT Search"] [aria-label="Search Input"]').click();
@@ -72,12 +72,12 @@ test.describe('Grand Search', () => {
         await page.locator('[aria-label="OpenMCT Search"] [aria-label="Search Input"]').fill('Cl');
         await Promise.all([
             page.waitForNavigation(),
-            page.locator('text=Clock A').click()
+            page.locator('[aria-label="Clock A clock result"] >> text=Clock A').click()
         ]);
         await expect(page.locator('.is-object-type-clock')).toBeVisible();
 
         await page.locator('[aria-label="OpenMCT Search"] [aria-label="Search Input"]').fill('Disp');
-        await expect(page.locator('[aria-label="Search Result"] >> nth=0')).toContainText('Unnamed Display Layout');
+        await expect(page.locator('[aria-label="Search Result"] >> nth=0')).toContainText(createdObjects.displayLayout.name);
         await expect(page.locator('[aria-label="Search Result"] >> nth=0')).not.toContainText('Folder');
 
         await page.locator('[aria-label="OpenMCT Search"] input[type="search"]').fill('Clock C');
@@ -185,7 +185,7 @@ async function createFolderObject(page, folderName) {
     await page.locator('text=Properties Title Notes >> input[type="text"]').fill(folderName);
 
     // Create folder object
-    await page.locator('text=OK').click();
+    await page.locator('button:has-text("OK")').click();
 }
 
 async function waitForSearchCompletion(page) {
@@ -197,75 +197,56 @@ async function waitForSearchCompletion(page) {
   * Creates some domain objects for searching
   * @param {import('@playwright/test').Page} page
   */
-async function createObjectsForSearch(page, myItemsFolderName) {
+async function createObjectsForSearch(page) {
     //Go to baseURL
     await page.goto('./', { waitUntil: 'networkidle' });
 
-    await page.locator('button:has-text("Create")').click();
-    await page.locator('li:has-text("Folder") >> nth=1').click();
-    await Promise.all([
-        page.waitForNavigation(),
-        await page.locator('text=Properties Title Notes >> input[type="text"]').fill('Red Folder'),
-        await page.locator(`text=Save In Open MCT ${myItemsFolderName} >> span`).nth(3).click(),
-        page.locator('button:has-text("OK")').click()
-    ]);
+    const redFolder = await createDomainObjectWithDefaults(page, {
+        type: 'Folder',
+        name: 'Red Folder'
+    });
 
-    await page.locator('button:has-text("Create")').click();
-    await page.locator('li:has-text("Folder") >> nth=2').click();
-    await Promise.all([
-        page.waitForNavigation(),
-        await page.locator('text=Properties Title Notes >> input[type="text"]').fill('Blue Folder'),
-        await page.locator('form[name="mctForm"] >> text=Red Folder').click(),
-        page.locator('button:has-text("OK")').click()
-    ]);
+    const blueFolder = await createDomainObjectWithDefaults(page, {
+        type: 'Folder',
+        name: 'Blue Folder',
+        parent: redFolder.uuid
+    });
 
-    await page.locator('button:has-text("Create")').click();
-    await page.locator('li[title="A digital clock that uses system time and supports a variety of display formats and timezones."]').click();
-    await Promise.all([
-        page.waitForNavigation(),
-        await page.locator('text=Properties Title Notes >> input[type="text"] >> nth=0').fill('Clock A'),
-        await page.locator('form[name="mctForm"] >> text=Blue Folder').click(),
-        page.locator('button:has-text("OK")').click()
-    ]);
+    const clockA = await createDomainObjectWithDefaults(page, {
+        type: 'Clock',
+        name: 'Clock A',
+        parent: blueFolder.uuid
+    });
+    const clockB = await createDomainObjectWithDefaults(page, {
+        type: 'Clock',
+        name: 'Clock B',
+        parent: blueFolder.uuid
+    });
+    const clockC = await createDomainObjectWithDefaults(page, {
+        type: 'Clock',
+        name: 'Clock C',
+        parent: blueFolder.uuid
+    });
+    const clockD = await createDomainObjectWithDefaults(page, {
+        type: 'Clock',
+        name: 'Clock D',
+        parent: blueFolder.uuid
+    });
 
-    await page.locator('button:has-text("Create")').click();
-    await page.locator('li[title="A digital clock that uses system time and supports a variety of display formats and timezones."]').click();
-    await Promise.all([
-        page.waitForNavigation(),
-        await page.locator('text=Properties Title Notes >> input[type="text"] >> nth=0').fill('Clock B'),
-        await page.locator('form[name="mctForm"] >> text=Blue Folder').click(),
-        page.locator('button:has-text("OK")').click()
-    ]);
+    const displayLayout = await createDomainObjectWithDefaults(page, {
+        type: 'Display Layout'
+    });
 
-    await page.locator('button:has-text("Create")').click();
-    await page.locator('li[title="A digital clock that uses system time and supports a variety of display formats and timezones."]').click();
-    await Promise.all([
-        page.waitForNavigation(),
-        await page.locator('text=Properties Title Notes >> input[type="text"] >> nth=0').fill('Clock C'),
-        await page.locator('form[name="mctForm"] >> text=Blue Folder').click(),
-        page.locator('button:has-text("OK")').click()
-    ]);
+    // Go back into edit mode for the display layout
+    await page.locator('button[title="Edit"]').click();
 
-    await page.locator('button:has-text("Create")').click();
-    await page.locator('li[title="A digital clock that uses system time and supports a variety of display formats and timezones."]').click();
-    await Promise.all([
-        page.waitForNavigation(),
-        await page.locator('text=Properties Title Notes >> input[type="text"] >> nth=0').fill('Clock D'),
-        await page.locator('form[name="mctForm"] >> text=Blue Folder').click(),
-        page.locator('button:has-text("OK")').click()
-    ]);
-
-    await Promise.all([
-        page.waitForNavigation(),
-        page.locator(`a:has-text("${myItemsFolderName}") >> nth=0`).click()
-    ]);
-    // Click button:has-text("Create")
-    await page.locator('button:has-text("Create")').click();
-    // Click li:has-text("Notebook")
-    await page.locator('li:has-text("Display Layout")').click();
-    // Click button:has-text("OK")
-    await Promise.all([
-        page.waitForNavigation(),
-        page.locator('button:has-text("OK")').click()
-    ]);
+    return {
+        redFolder,
+        blueFolder,
+        clockA,
+        clockB,
+        clockC,
+        clockD,
+        displayLayout
+    };
 }

e2e/tests/functional/tree.e2e.spec.js

@@ -116,7 +116,9 @@ async function getAndAssertTreeItems(page, expected) {
  * @param {string} name
  */
 async function expandTreePaneItemByName(page, name) {
-    const treePane = page.locator('#tree-pane');
+    const treePane = page.getByRole('tree', {
+        name: 'Main Tree'
+    });
     const treeItem = treePane.locator(`role=treeitem[expanded=false][name=/${name}/]`);
     const expandTriangle = treeItem.locator('.c-disclosure-triangle');
     await expandTriangle.click();

e2e/tests/performance/imagery.perf.spec.js

@@ -53,7 +53,7 @@ test.describe('Performance tests', () => {
         await page.setInputFiles('#fileElem', filePath);
 
         // Click text=OK
-        await page.locator('text=OK').click();
+        await page.locator('button:has-text("OK")').click();
 
         await expect(page.locator('a:has-text("Performance Display Layout Display Layout")')).toBeVisible();
 

e2e/tests/visual/components/tree.visual.spec.js

@@ -57,7 +57,7 @@ test.describe('Visual - Tree Pane', () => {
             name: 'Z Clock'
         });
 
-        const treePane = "#tree-pane";
+        const treePane = "[role=tree][aria-label='Main Tree']";
 
         await percySnapshot(page, `Tree Pane w/ collapsed tree (theme: ${theme})`, {
             scope: treePane
@@ -94,7 +94,7 @@ test.describe('Visual - Tree Pane', () => {
  * @param {string} name
  */
 async function expandTreePaneItemByName(page, name) {
-    const treePane = page.locator('#tree-pane');
+    const treePane = page.getByTestId('tree-pane');
     const treeItem = treePane.locator(`role=treeitem[expanded=false][name=/${name}/]`);
     const expandTriangle = treeItem.locator('.c-disclosure-triangle');
     await expandTriangle.click();

e2e/tests/visual/notification.visual.spec.js

@@ -0,0 +1,58 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2023, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/**
+ * This test is dedicated to test notification banner functionality and its accessibility attributes.
+ */
+
+const { test, expect } = require('../../pluginFixtures');
+const percySnapshot = require('@percy/playwright');
+const { createDomainObjectWithDefaults } = require('../../appActions');
+
+test.describe('Visual - Check Notification Info Banner of \'Save successful\'', () => {
+    test.beforeEach(async ({ page }) => {
+        // Go to baseURL and Hide Tree
+        await page.goto('./', { waitUntil: 'networkidle' });
+    });
+
+    test('Create a clock, click on \'Save successful\' banner and dismiss it', async ({ page }) => {
+        // Create a clock domain object
+        await createDomainObjectWithDefaults(page, { type: 'Clock' });
+        // Verify there is a button with aria-label="Review 1 Notification"
+        expect(await page.locator('button[aria-label="Review 1 Notification"]').isVisible()).toBe(true);
+        // Verify there is a button with aria-label="Clear all notifications"
+        expect(await page.locator('button[aria-label="Clear all notifications"]').isVisible()).toBe(true);
+        // Click on the div with role="alert" that has "Save successful" text
+        await page.locator('div[role="alert"]:has-text("Save successful")').click();
+        // Verify there is a div with role="dialog"
+        expect(await page.locator('div[role="dialog"]').isVisible()).toBe(true);
+        // Verify the div with role="dialog" contains text "Save successful"
+        expect(await page.locator('div[role="dialog"]').innerText()).toContain('Save successful');
+        await percySnapshot(page, 'Notification banner');
+        // Verify there is a button with text "Dismiss"
+        expect(await page.locator('button:has-text("Dismiss")').isVisible()).toBe(true);
+        // Click on button with text "Dismiss"
+        await page.locator('button:has-text("Dismiss")').click();
+        // Verify there is no div with role="dialog"
+        expect(await page.locator('div[role="dialog"]').isVisible()).toBe(false);
+    });
+});

example/exampleUser/ExampleUserProvider.js

@@ -65,7 +65,7 @@ export default class ExampleUserProvider extends EventEmitter {
         this.user = undefined;
         this.loggedIn = false;
         this.autoLoginUser = undefined;
-        this.status = STATUSES[1];
+        this.status = STATUSES[0];
         this.pollQuestion = undefined;
         this.defaultStatusRole = defaultStatusRole;
 
@@ -124,6 +124,7 @@ export default class ExampleUserProvider extends EventEmitter {
     }
 
     setStatusForRole(role, status) {
+        status.timestamp = Date.now();
         this.status = status;
         this.emit('statusChange', {
             role,
@@ -133,14 +134,23 @@ export default class ExampleUserProvider extends EventEmitter {
         return true;
     }
 
-    getPollQuestion() {
-        return Promise.resolve({
-            question: 'Set "GO" if your position is ready for a boarding action on the Klingon cruiser',
-            timestamp: Date.now()
-        });
+    // eslint-disable-next-line require-await
+    async getPollQuestion() {
+        if (this.pollQuestion) {
+            return this.pollQuestion;
+        } else {
+            return undefined;
+        }
     }
 
     setPollQuestion(pollQuestion) {
+        if (!pollQuestion) {
+            // If the poll question is undefined, set it to a blank string.
+            // This behavior better reflects how other telemetry systems
+            // deal with undefined poll questions.
+            pollQuestion = '';
+        }
+
         this.pollQuestion = {
             question: pollQuestion,
             timestamp: Date.now()

example/generator/GeneratorProvider.js

@@ -33,11 +33,13 @@ define([
         dataRateInHz: 1,
         randomness: 0,
         phase: 0,
-        loadDelay: 0
+        loadDelay: 0,
+        infinityValues: false
     };
 
-    function GeneratorProvider(openmct) {
-        this.workerInterface = new WorkerInterface(openmct);
+    function GeneratorProvider(openmct, StalenessProvider) {
+        this.openmct = openmct;
+        this.workerInterface = new WorkerInterface(openmct, StalenessProvider);
     }
 
     GeneratorProvider.prototype.canProvideTelemetry = function (domainObject) {
@@ -56,7 +58,8 @@ define([
             'dataRateInHz',
             'randomness',
             'phase',
-            'loadDelay'
+            'loadDelay',
+            'infinityValues'
         ];
 
         request = request || {};
@@ -79,6 +82,7 @@ define([
             workerRequest[prop] = Number(workerRequest[prop]);
         });
 
+        workerRequest.id = this.openmct.objects.makeKeyString(domainObject.identifier);
         workerRequest.name = domainObject.name;
 
         return workerRequest;

example/generator/SinewaveStalenessProvider.js

@@ -0,0 +1,151 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2022, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+import EventEmitter from 'EventEmitter';
+
+export default class SinewaveLimitProvider extends EventEmitter {
+
+    constructor(openmct) {
+        super();
+
+        this.openmct = openmct;
+        this.observingStaleness = {};
+        this.watchingTheClock = false;
+        this.isRealTime = undefined;
+    }
+
+    supportsStaleness(domainObject) {
+        return domainObject.type === 'generator';
+    }
+
+    isStale(domainObject, options) {
+        if (!this.providingStaleness(domainObject)) {
+            return Promise.resolve({
+                isStale: false,
+                utc: 0
+            });
+        }
+
+        const id = this.getObjectKeyString(domainObject);
+
+        if (!this.observerExists(id)) {
+            this.createObserver(id);
+        }
+
+        return Promise.resolve(this.observingStaleness[id].isStale);
+    }
+
+    subscribeToStaleness(domainObject, callback) {
+        const id = this.getObjectKeyString(domainObject);
+
+        if (this.isRealTime === undefined) {
+            this.updateRealTime(this.openmct.time.clock());
+        }
+
+        this.handleClockUpdate();
+
+        if (this.observerExists(id)) {
+            this.addCallbackToObserver(id, callback);
+        } else {
+            this.createObserver(id, callback);
+        }
+
+        const intervalId = setInterval(() => {
+            if (this.providingStaleness(domainObject)) {
+                this.updateStaleness(id, !this.observingStaleness[id].isStale);
+            }
+        }, 10000);
+
+        return () => {
+            clearInterval(intervalId);
+            this.updateStaleness(id, false);
+            this.handleClockUpdate();
+            this.destroyObserver(id);
+        };
+    }
+
+    handleClockUpdate() {
+        let observers = Object.values(this.observingStaleness).length > 0;
+
+        if (observers && !this.watchingTheClock) {
+            this.watchingTheClock = true;
+            this.openmct.time.on('clock', this.updateRealTime, this);
+        } else if (!observers && this.watchingTheClock) {
+            this.watchingTheClock = false;
+            this.openmct.time.off('clock', this.updateRealTime, this);
+        }
+    }
+
+    updateRealTime(clock) {
+        this.isRealTime = clock !== undefined;
+
+        if (!this.isRealTime) {
+            Object.keys(this.observingStaleness).forEach((id) => {
+                this.updateStaleness(id, false);
+            });
+        }
+    }
+
+    updateStaleness(id, isStale) {
+        this.observingStaleness[id].isStale = isStale;
+        this.observingStaleness[id].utc = Date.now();
+        this.observingStaleness[id].callback({
+            isStale: this.observingStaleness[id].isStale,
+            utc: this.observingStaleness[id].utc
+        });
+        this.emit('stalenessEvent', {
+            id,
+            isStale: this.observingStaleness[id].isStale
+        });
+    }
+
+    createObserver(id, callback) {
+        this.observingStaleness[id] = {
+            isStale: false,
+            utc: Date.now()
+        };
+
+        if (typeof callback === 'function') {
+            this.addCallbackToObserver(id, callback);
+        }
+    }
+
+    destroyObserver(id) {
+        delete this.observingStaleness[id];
+    }
+
+    providingStaleness(domainObject) {
+        return domainObject.telemetry?.staleness === true && this.isRealTime;
+    }
+
+    getObjectKeyString(object) {
+        return this.openmct.objects.makeKeyString(object.identifier);
+    }
+
+    addCallbackToObserver(id, callback) {
+        this.observingStaleness[id].callback = callback;
+    }
+
+    observerExists(id) {
+        return this.observingStaleness?.[id];
+    }
+}

example/generator/WorkerInterface.js

@@ -25,14 +25,24 @@ define([
 ], function (
     { v4: uuid }
 ) {
-    function WorkerInterface(openmct) {
+    function WorkerInterface(openmct, StalenessProvider) {
         // eslint-disable-next-line no-undef
         const workerUrl = `${openmct.getAssetPath()}${__OPENMCT_ROOT_RELATIVE__}generatorWorker.js`;
+        this.StalenessProvider = StalenessProvider;
         this.worker = new Worker(workerUrl);
         this.worker.onmessage = this.onMessage.bind(this);
         this.callbacks = {};
+        this.staleTelemetryIds = {};
+
+        this.watchStaleness();
     }
 
+    WorkerInterface.prototype.watchStaleness = function () {
+        this.StalenessProvider.on('stalenessEvent', ({ id, isStale}) => {
+            this.staleTelemetryIds[id] = isStale;
+        });
+    };
+
     WorkerInterface.prototype.onMessage = function (message) {
         message = message.data;
         var callback = this.callbacks[message.id];
@@ -83,11 +93,12 @@ define([
     };
 
     WorkerInterface.prototype.subscribe = function (request, cb) {
-        function callback(message) {
-            cb(message.data);
-        }
-
-        var messageId = this.dispatch('subscribe', request, callback);
+        const id = request.id;
+        const messageId = this.dispatch('subscribe', request, (message) => {
+            if (!this.staleTelemetryIds[id]) {
+                cb(message.data);
+            }
+        });
 
         return function () {
             this.dispatch('unsubscribe', {

example/generator/generatorWorker.js

@@ -76,10 +76,10 @@
                             name: data.name,
                             utc: nextStep,
                             yesterday: nextStep - 60 * 60 * 24 * 1000,
-                            sin: sin(nextStep, data.period, data.amplitude, data.offset, data.phase, data.randomness),
+                            sin: sin(nextStep, data.period, data.amplitude, data.offset, data.phase, data.randomness, data.infinityValues),
                             wavelengths: wavelengths(),
                             intensities: intensities(),
-                            cos: cos(nextStep, data.period, data.amplitude, data.offset, data.phase, data.randomness)
+                            cos: cos(nextStep, data.period, data.amplitude, data.offset, data.phase, data.randomness, data.infinityValues)
                         }
                     });
                     nextStep += step;
@@ -117,6 +117,7 @@
         var phase = request.phase;
         var randomness = request.randomness;
         var loadDelay = Math.max(request.loadDelay, 0);
+        var infinityValues = request.infinityValues;
 
         var step = 1000 / dataRateInHz;
         var nextStep = start - (start % step) + step;
@@ -127,10 +128,10 @@
             data.push({
                 utc: nextStep,
                 yesterday: nextStep - 60 * 60 * 24 * 1000,
-                sin: sin(nextStep, period, amplitude, offset, phase, randomness),
+                sin: sin(nextStep, period, amplitude, offset, phase, randomness, infinityValues),
                 wavelengths: wavelengths(),
                 intensities: intensities(),
-                cos: cos(nextStep, period, amplitude, offset, phase, randomness)
+                cos: cos(nextStep, period, amplitude, offset, phase, randomness, infinityValues)
             });
         }
 
@@ -155,12 +156,20 @@
         });
     }
 
-    function cos(timestamp, period, amplitude, offset, phase, randomness) {
+    function cos(timestamp, period, amplitude, offset, phase, randomness, infinityValues) {
+        if (infinityValues && Math.random() > 0.5) {
+            return Number.POSITIVE_INFINITY;
+        }
+
         return amplitude
             * Math.cos(phase + (timestamp / period / 1000 * Math.PI * 2)) + (amplitude * Math.random() * randomness) + offset;
     }
 
-    function sin(timestamp, period, amplitude, offset, phase, randomness) {
+    function sin(timestamp, period, amplitude, offset, phase, randomness, infinityValues) {
+        if (infinityValues && Math.random() > 0.5) {
+            return Number.POSITIVE_INFINITY;
+        }
+
         return amplitude
             * Math.sin(phase + (timestamp / period / 1000 * Math.PI * 2)) + (amplitude * Math.random() * randomness) + offset;
     }

example/generator/plugin.js

@@ -20,147 +20,163 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
-define([
-    "./GeneratorProvider",
-    "./SinewaveLimitProvider",
-    "./StateGeneratorProvider",
-    "./GeneratorMetadataProvider"
-], function (
-    GeneratorProvider,
-    SinewaveLimitProvider,
-    StateGeneratorProvider,
-    GeneratorMetadataProvider
-) {
+import GeneratorProvider from "./GeneratorProvider";
+import SinewaveLimitProvider from "./SinewaveLimitProvider";
+import SinewaveStalenessProvider from "./SinewaveStalenessProvider";
+import StateGeneratorProvider from "./StateGeneratorProvider";
+import GeneratorMetadataProvider from "./GeneratorMetadataProvider";
 
-    return function (openmct) {
+export default function (openmct) {
 
-        openmct.types.addType("example.state-generator", {
-            name: "State Generator",
-            description: "For development use. Generates example enumerated telemetry by cycling through a given set of states.",
-            cssClass: "icon-generator-telemetry",
-            creatable: true,
-            form: [
-                {
-                    name: "State Duration (seconds)",
-                    control: "numberfield",
-                    cssClass: "l-input-sm l-numeric",
-                    key: "duration",
-                    required: true,
-                    property: [
-                        "telemetry",
-                        "duration"
-                    ]
-                }
-            ],
-            initialize: function (object) {
-                object.telemetry = {
-                    duration: 5
-                };
+    openmct.types.addType("example.state-generator", {
+        name: "State Generator",
+        description: "For development use. Generates example enumerated telemetry by cycling through a given set of states.",
+        cssClass: "icon-generator-telemetry",
+        creatable: true,
+        form: [
+            {
+                name: "State Duration (seconds)",
+                control: "numberfield",
+                cssClass: "l-input-sm l-numeric",
+                key: "duration",
+                required: true,
+                property: [
+                    "telemetry",
+                    "duration"
+                ]
             }
-        });
+        ],
+        initialize: function (object) {
+            object.telemetry = {
+                duration: 5
+            };
+        }
+    });
 
-        openmct.telemetry.addProvider(new StateGeneratorProvider());
+    openmct.telemetry.addProvider(new StateGeneratorProvider());
 
-        openmct.types.addType("generator", {
-            name: "Sine Wave Generator",
-            description: "For development use. Generates example streaming telemetry data using a simple sine wave algorithm.",
-            cssClass: "icon-generator-telemetry",
-            creatable: true,
-            form: [
-                {
-                    name: "Period",
-                    control: "numberfield",
-                    cssClass: "l-input-sm l-numeric",
-                    key: "period",
-                    required: true,
-                    property: [
-                        "telemetry",
-                        "period"
-                    ]
-                },
-                {
-                    name: "Amplitude",
-                    control: "numberfield",
-                    cssClass: "l-numeric",
-                    key: "amplitude",
-                    required: true,
-                    property: [
-                        "telemetry",
-                        "amplitude"
-                    ]
-                },
-                {
-                    name: "Offset",
-                    control: "numberfield",
-                    cssClass: "l-numeric",
-                    key: "offset",
-                    required: true,
-                    property: [
-                        "telemetry",
-                        "offset"
-                    ]
-                },
-                {
-                    name: "Data Rate (hz)",
-                    control: "numberfield",
-                    cssClass: "l-input-sm l-numeric",
-                    key: "dataRateInHz",
-                    required: true,
-                    property: [
-                        "telemetry",
-                        "dataRateInHz"
-                    ]
-                },
-                {
-                    name: "Phase (radians)",
-                    control: "numberfield",
-                    cssClass: "l-input-sm l-numeric",
-                    key: "phase",
-                    required: true,
-                    property: [
-                        "telemetry",
-                        "phase"
-                    ]
-                },
-                {
-                    name: "Randomness",
-                    control: "numberfield",
-                    cssClass: "l-input-sm l-numeric",
-                    key: "randomness",
-                    required: true,
-                    property: [
-                        "telemetry",
-                        "randomness"
-                    ]
-                },
-                {
-                    name: "Loading Delay (ms)",
-                    control: "numberfield",
-                    cssClass: "l-input-sm l-numeric",
-                    key: "loadDelay",
-                    required: true,
-                    property: [
-                        "telemetry",
-                        "loadDelay"
-                    ]
-                }
-            ],
-            initialize: function (object) {
-                object.telemetry = {
-                    period: 10,
-                    amplitude: 1,
-                    offset: 0,
-                    dataRateInHz: 1,
-                    phase: 0,
-                    randomness: 0,
-                    loadDelay: 0
-                };
+    openmct.types.addType("generator", {
+        name: "Sine Wave Generator",
+        description: "For development use. Generates example streaming telemetry data using a simple sine wave algorithm.",
+        cssClass: "icon-generator-telemetry",
+        creatable: true,
+        form: [
+            {
+                name: "Period",
+                control: "numberfield",
+                cssClass: "l-input-sm l-numeric",
+                key: "period",
+                required: true,
+                property: [
+                    "telemetry",
+                    "period"
+                ]
+            },
+            {
+                name: "Amplitude",
+                control: "numberfield",
+                cssClass: "l-numeric",
+                key: "amplitude",
+                required: true,
+                property: [
+                    "telemetry",
+                    "amplitude"
+                ]
+            },
+            {
+                name: "Offset",
+                control: "numberfield",
+                cssClass: "l-numeric",
+                key: "offset",
+                required: true,
+                property: [
+                    "telemetry",
+                    "offset"
+                ]
+            },
+            {
+                name: "Data Rate (hz)",
+                control: "numberfield",
+                cssClass: "l-input-sm l-numeric",
+                key: "dataRateInHz",
+                required: true,
+                property: [
+                    "telemetry",
+                    "dataRateInHz"
+                ]
+            },
+            {
+                name: "Phase (radians)",
+                control: "numberfield",
+                cssClass: "l-input-sm l-numeric",
+                key: "phase",
+                required: true,
+                property: [
+                    "telemetry",
+                    "phase"
+                ]
+            },
+            {
+                name: "Randomness",
+                control: "numberfield",
+                cssClass: "l-input-sm l-numeric",
+                key: "randomness",
+                required: true,
+                property: [
+                    "telemetry",
+                    "randomness"
+                ]
+            },
+            {
+                name: "Loading Delay (ms)",
+                control: "numberfield",
+                cssClass: "l-input-sm l-numeric",
+                key: "loadDelay",
+                required: true,
+                property: [
+                    "telemetry",
+                    "loadDelay"
+                ]
+            },
+            {
+                name: "Include Infinity Values",
+                control: "toggleSwitch",
+                cssClass: "l-input",
+                key: "infinityValues",
+                property: [
+                    "telemetry",
+                    "infinityValues"
+                ]
+            },
+            {
+                name: "Provide Staleness Updates",
+                control: "toggleSwitch",
+                cssClass: "l-input",
+                key: "staleness",
+                property: [
+                    "telemetry",
+                    "staleness"
+                ]
             }
-        });
+        ],
+        initialize: function (object) {
+            object.telemetry = {
+                period: 10,
+                amplitude: 1,
+                offset: 0,
+                dataRateInHz: 1,
+                phase: 0,
+                randomness: 0,
+                loadDelay: 0,
+                infinityValues: false,
+                staleness: false
+            };
+        }
+    });
+    const stalenessProvider = new SinewaveStalenessProvider(openmct);
 
-        openmct.telemetry.addProvider(new GeneratorProvider(openmct));
-        openmct.telemetry.addProvider(new GeneratorMetadataProvider());
-        openmct.telemetry.addProvider(new SinewaveLimitProvider());
-    };
-
-});
+    openmct.telemetry.addProvider(new GeneratorProvider(openmct, stalenessProvider));
+    openmct.telemetry.addProvider(new GeneratorMetadataProvider());
+    openmct.telemetry.addProvider(new SinewaveLimitProvider());
+    openmct.telemetry.addProvider(stalenessProvider);
+}

example/imagery/plugin.js

@@ -107,6 +107,15 @@ export default function () {
                                 }
                             ]
                         },
+                        {
+                            name: 'Image Thumbnail',
+                            key: 'thumbnail-url',
+                            format: 'thumbnail',
+                            hints: {
+                                thumbnail: 1
+                            },
+                            source: 'url'
+                        },
                         {
                             name: 'Image Download Name',
                             key: 'imageDownloadName',
@@ -143,6 +152,16 @@ export default function () {
             ]
         });
 
+        const formatThumbnail = {
+            format: function (url) {
+                return `${url}?w=100&h=100`;
+            }
+        };
+
+        openmct.telemetry.addFormat({
+            key: 'thumbnail',
+            ...formatThumbnail
+        });
         openmct.telemetry.addProvider(getRealtimeProvider());
         openmct.telemetry.addProvider(getHistoricalProvider());
         openmct.telemetry.addProvider(getLadProvider());
@@ -242,6 +261,13 @@ function pointForTimestamp(timestamp, name, imageSamples, delay) {
     const url = imageSamples[Math.floor(timestamp / delay) % imageSamples.length];
     const urlItems = url.split('/');
     const imageDownloadName = `example.imagery.${urlItems[urlItems.length - 1]}`;
+    const navCamTransformations = {
+        "translateX": 0,
+        "translateY": 18,
+        "rotation": 0,
+        "scale": 0.3,
+        "cameraAngleOfView": 70
+    };
 
     return {
         name,
@@ -251,6 +277,7 @@ function pointForTimestamp(timestamp, name, imageSamples, delay) {
         sunOrientation: getCompassValues(0, 360),
         cameraPan: getCompassValues(0, 360),
         heading: getCompassValues(0, 360),
+        transformations: navCamTransformations,
         imageDownloadName
     };
 }

karma.conf.js

@@ -28,12 +28,12 @@ module.exports = (config) => {
     let singleRun;
 
     if (process.env.KARMA_DEBUG) {
-        webpackConfig = require('./webpack.dev.js');
-        browsers = ['ChromeDebugging'];
+        webpackConfig = require("./.webpack/webpack.dev.js");
+        browsers = ["ChromeDebugging"];
         singleRun = false;
     } else {
-        webpackConfig = require('./webpack.coverage.js');
-        browsers = ['ChromeHeadless'];
+        webpackConfig = require("./.webpack/webpack.coverage.js");
+        browsers = ["ChromeHeadless"];
         singleRun = true;
     }
 
@@ -42,28 +42,28 @@ module.exports = (config) => {
     delete webpackConfig.entry;
 
     config.set({
-        basePath: '',
-        frameworks: ['jasmine', 'webpack'],
+        basePath: "",
+        frameworks: ["jasmine", "webpack"],
         files: [
-            'indexTest.js',
+            "indexTest.js",
             // included means: should the files be included in the browser using <script> tag?
             // We don't want them as a <script> because the shared worker source
             // needs loaded remotely by the shared worker process.
             {
-                pattern: 'dist/couchDBChangesFeed.js*',
+                pattern: "dist/couchDBChangesFeed.js*",
                 included: false
             },
             {
-                pattern: 'dist/inMemorySearchWorker.js*',
+                pattern: "dist/inMemorySearchWorker.js*",
                 included: false
             },
             {
-                pattern: 'dist/generatorWorker.js*',
+                pattern: "dist/generatorWorker.js*",
                 included: false
             }
         ],
         port: 9876,
-        reporters: ['spec', 'junit', 'coverage-istanbul'],
+        reporters: ["spec", "junit", "coverage-istanbul"],
         browsers,
         client: {
             jasmine: {
@@ -73,8 +73,8 @@ module.exports = (config) => {
         },
         customLaunchers: {
             ChromeDebugging: {
-                base: 'Chrome',
-                flags: ['--remote-debugging-port=9222'],
+                base: "Chrome",
+                flags: ["--remote-debugging-port=9222"],
                 debug: true
             }
         },
@@ -90,7 +90,7 @@ module.exports = (config) => {
             fixWebpackSourcePaths: true,
             skipFilesWithNoCoverage: true,
             dir: "coverage/unit", //Sets coverage file to be consumed by codecov.io
-            reports: ['lcovonly']
+            reports: ["lcovonly"]
         },
         specReporter: {
             maxLogLines: 5,
@@ -102,11 +102,11 @@ module.exports = (config) => {
             failFast: false
         },
         preprocessors: {
-            'indexTest.js': ['webpack', 'sourcemap']
+            "indexTest.js": ["webpack", "sourcemap"]
         },
         webpack: webpackConfig,
         webpackMiddleware: {
-            stats: 'errors-warnings'
+            stats: "errors-warnings"
         },
         concurrency: 1,
         singleRun,

package.json

@@ -1,35 +1,37 @@
 {
   "name": "openmct",
-  "version": "2.1.3-SNAPSHOT",
+  "version": "2.1.6-SNAPSHOT",
   "description": "The Open MCT core platform",
   "devDependencies": {
     "@babel/eslint-parser": "7.18.9",
-    "@braintree/sanitize-url": "6.0.0",
-    "@percy/cli": "1.11.0",
+    "@braintree/sanitize-url": "6.0.2",
+    "@percy/cli": "1.17.0",
     "@percy/playwright": "1.0.4",
-    "@playwright/test": "1.25.2",
-    "@types/jasmine": "4.3.0",
-    "@types/lodash": "4.14.186",
-    "babel-loader": "9.0.0",
+    "@playwright/test": "1.29.0",
+    "@types/eventemitter3": "1.2.0",
+    "@types/jasmine": "4.3.1",
+    "@types/lodash": "4.14.191",
+    "babel-loader": "9.1.0",
     "babel-plugin-istanbul": "6.1.1",
     "codecov": "3.8.3",
     "comma-separated-values": "3.6.4",
     "copy-webpack-plugin": "11.0.0",
-    "css-loader": "6.7.1",
+    "css-loader": "6.7.3",
     "d3-axis": "3.0.0",
     "d3-scale": "3.3.0",
     "d3-selection": "3.0.0",
-    "eslint": "8.26.0",
+    "eslint": "8.32.0",
     "eslint-plugin-compat": "4.0.2",
-    "eslint-plugin-playwright": "0.11.2",
-    "eslint-plugin-vue": "9.7.0",
+    "eslint-plugin-playwright": "0.12.0",
+    "eslint-plugin-vue": "9.9.0",
     "eslint-plugin-you-dont-need-lodash-underscore": "6.12.0",
     "eventemitter3": "1.2.0",
     "file-saver": "2.0.5",
     "git-rev-sync": "3.0.2",
+    "git-revision-webpack-plugin": "5.0.0",
     "html2canvas": "1.4.1",
     "imports-loader": "4.0.1",
-    "jasmine-core": "4.4.0",
+    "jasmine-core": "4.5.0",
     "karma": "6.3.20",
     "karma-chrome-launcher": "3.1.1",
     "karma-cli": "2.0.0",
@@ -38,47 +40,49 @@
     "karma-jasmine": "5.1.0",
     "karma-junit-reporter": "2.0.1",
     "karma-sourcemap-loader": "0.3.8",
-    "karma-spec-reporter": "0.0.34",
+    "karma-spec-reporter": "0.0.36",
     "karma-webpack": "5.0.0",
+    "kdbush": "^3.0.0",
     "location-bar": "3.0.1",
     "lodash": "4.17.21",
-    "mini-css-extract-plugin": "2.6.1",
+    "mini-css-extract-plugin": "2.7.2",
     "moment": "2.29.4",
     "moment-duration-format": "2.3.2",
-    "moment-timezone": "0.5.37",
+    "moment-timezone": "0.5.40",
     "nyc": "15.1.0",
     "painterro": "1.2.78",
-    "playwright-core": "1.25.2",
-    "plotly.js-basic-dist": "2.14.0",
-    "plotly.js-gl2d-dist": "2.14.0",
+    "playwright-core": "1.29.0",
+    "plotly.js-basic-dist": "2.17.0",
+    "plotly.js-gl2d-dist": "2.17.1",
     "printj": "1.3.1",
     "resolve-url-loader": "5.0.0",
-    "sass": "1.55.0",
-    "sass-loader": "13.0.2",
-    "sinon": "14.0.1",
+    "sanitize-html": "2.8.1",
+    "sass": "1.57.1",
+    "sass-loader": "13.2.0",
+    "sinon": "15.0.1",
     "style-loader": "^3.3.1",
-    "typescript": "4.8.4",
+    "typescript": "4.9.4",
     "uuid": "9.0.0",
     "vue": "2.6.14",
     "vue-eslint-parser": "9.1.0",
     "vue-loader": "15.9.8",
     "vue-template-compiler": "2.6.14",
     "webpack": "5.74.0",
-    "webpack-cli": "4.10.0",
+    "webpack-cli": "5.0.0",
     "webpack-dev-server": "4.11.1",
     "webpack-merge": "5.8.0"
   },
   "scripts": {
     "clean": "rm -rf ./dist ./node_modules ./package-lock.json",
     "clean-test-lint": "npm run clean; npm install; npm run test; npm run lint",
-    "start": "npx webpack serve --config ./webpack.dev.js",
-    "start:coverage": "npx webpack serve --config ./webpack.coverage.js",
+    "start": "npx webpack serve --config ./.webpack/webpack.dev.js",
+    "start:coverage": "npx webpack serve --config ./.webpack/webpack.coverage.js",
     "lint": "eslint example src e2e --ext .js,.vue openmct.js --max-warnings=0",
     "lint:fix": "eslint example src e2e --ext .js,.vue openmct.js --fix",
-    "build:prod": "webpack --config webpack.prod.js",
-    "build:dev": "webpack --config webpack.dev.js",
-    "build:coverage": "webpack --config webpack.coverage.js",
-    "build:watch": "webpack --config webpack.dev.js --watch",
+    "build:prod": "webpack --config ./.webpack/webpack.prod.js",
+    "build:dev": "webpack --config ./.webpack/webpack.dev.js",
+    "build:coverage": "webpack --config ./.webpack/webpack.coverage.js",
+    "build:watch": "webpack --config ./.webpack/webpack.dev.js --watch",
     "info": "npx envinfo --system --browsers --npmPackages --binaries --languages --markdown",
     "test": "karma start",
     "test:debug": "KARMA_DEBUG=true karma start",
@@ -97,7 +101,8 @@
     "cov:e2e:full:publish": "codecov --disable=gcov -f ./coverage/e2e/lcov.info -F e2e-full",
     "cov:e2e:stable:publish": "codecov --disable=gcov -f ./coverage/e2e/lcov.info -F e2e-stable",
     "cov:unit:publish": "codecov --disable=gcov -f ./coverage/unit/lcov.info -F unit",
-    "prepare": "npm run build:prod && npx tsc"
+    "prepare": "npm run build:prod && npx tsc",
+    "prepack": "git rev-parse HEAD >> version.info; git rev-parse --abbrev-ref HEAD >> version.info"
   },
   "repository": {
     "type": "git",
@@ -114,6 +119,5 @@
     "ios_saf > 15"
   ],
   "author": "",
-  "license": "Apache-2.0",
-  "private": true
+  "license": "Apache-2.0"
 }

src/MCT.js

@@ -256,6 +256,15 @@ define([
             });
         });
 
+        /**
+         * MCT's annotation API that enables
+         * human-created comments and categorization linked to data products
+         * @type {module:openmct.AnnotationAPI}
+         * @memberof module:openmct.MCT#
+         * @name annotation
+         */
+        this.annotation = new api.AnnotationAPI(this);
+
         // Plugins that are installed by default
         this.install(this.plugins.Plot());
         this.install(this.plugins.TelemetryTable.default());

src/api/Editor.js

@@ -56,17 +56,12 @@ export default class Editor extends EventEmitter {
      * Save any unsaved changes from this editing session. This will
      * end the current transaction.
      */
-    save() {
+    async save() {
         const transaction = this.openmct.objects.getActiveTransaction();
-
-        return transaction.commit()
-            .then(() => {
-                this.editing = false;
-                this.emit('isEditing', false);
-                this.openmct.objects.endTransaction();
-            }).catch(error => {
-                throw error;
-            });
+        await transaction.commit();
+        this.editing = false;
+        this.emit('isEditing', false);
+        this.openmct.objects.endTransaction();
     }
 
     /**
@@ -78,6 +73,10 @@ export default class Editor extends EventEmitter {
 
         return new Promise((resolve, reject) => {
             const transaction = this.openmct.objects.getActiveTransaction();
+            if (!transaction) {
+                return resolve();
+            }
+
             transaction.cancel()
                 .then(resolve)
                 .catch(reject)

src/api/annotation/AnnotationAPI.js

@@ -52,6 +52,29 @@ const ANNOTATION_LAST_CREATED = 'annotationLastCreated';
  * @property {String} foregroundColor eg. "#ffffff"
  */
 
+/**
+ * @typedef {import('../objects/ObjectAPI').DomainObject} DomainObject
+ */
+
+/**
+ * @typedef {import('../objects/ObjectAPI').Identifier} Identifier
+ */
+
+/**
+ * @typedef {import('../../../openmct').OpenMCT} OpenMCT
+ */
+
+/**
+ * An interface for interacting with annotations of domain objects.
+ * An annotation of a domain object is an operator created object for the purposes
+ * of further describing data in plots, notebooks, maps, etc. For example, an annotation
+ * could be a tag on a plot notating an interesting set of points labeled SCIENCE. It could
+ * also be set of notebook entries the operator has tagged DRIVING when a robot monitored by OpenMCT
+ * about rationals behind why the robot has taken a certain path.
+ * Annotations are discoverable using search, and are typically rendered in OpenMCT views to bring attention
+ * to other users.
+ * @constructor
+ */
 export default class AnnotationAPI extends EventEmitter {
 
     /**
@@ -81,24 +104,26 @@ export default class AnnotationAPI extends EventEmitter {
             }
         });
     }
-
     /**
-    * Create the a generic annotation
+    * Creates an annotation on a given domain object (e.g., a plot) and a set of targets (e.g., telemetry objects)
     * @typedef {Object} CreateAnnotationOptions
-    * @property {String} name a name for the new parameter
-    * @property {import('../objects/ObjectAPI').DomainObject} domainObject the domain object to create
-    * @property {ANNOTATION_TYPES} annotationType the type of annotation to create
-    * @property {Tag[]} tags
-    * @property {String} contentText
-    * @property {import('../objects/ObjectAPI').Identifier[]} targets
+    * @property {String} name a name for the new annotation (e.g., "Plot annnotation")
+    * @property {DomainObject} domainObject the domain object this annotation was created with
+    * @property {ANNOTATION_TYPES} annotationType the type of annotation to create (e.g., PLOT_SPATIAL)
+    * @property {Tag[]} tags tags to add to the annotation, e.g., SCIENCE for science related annotations
+    * @property {String} contentText Some text to add to the annotation, e.g. ("This annotation is about science")
+    * @property {Object<string, Object>} targets The targets ID keystrings and their specific properties.
+    * For plots, this will be a bounding box, e.g.: {maxY: 100, minY: 0, maxX: 100, minX: 0}
+    * For notebooks, this will be an entry ID, e.g.: {entryId: "entry-ecb158f5-d23c-45e1-a704-649b382622ba"}
+    * @property {DomainObject>} targetDomainObjects the targets ID keystrings and the domain objects this annotation points to (e.g., telemetry objects for a plot)
     */
     /**
     * @method create
     * @param {CreateAnnotationOptions} options
-    * @returns {Promise<import('../objects/ObjectAPI').DomainObject>} a promise which will resolve when the domain object
+    * @returns {Promise<DomainObject>} a promise which will resolve when the domain object
     *          has been created, or be rejected if it cannot be saved
     */
-    async create({name, domainObject, annotationType, tags, contentText, targets}) {
+    async create({name, domainObject, annotationType, tags, contentText, targets, targetDomainObjects}) {
         if (!Object.keys(this.ANNOTATION_TYPES).includes(annotationType)) {
             throw new Error(`Unknown annotation type: ${annotationType}`);
         }
@@ -107,6 +132,10 @@ export default class AnnotationAPI extends EventEmitter {
             throw new Error(`At least one target is required to create an annotation`);
         }
 
+        if (!Object.keys(targetDomainObjects).length) {
+            throw new Error(`At least one targetDomainObject is required to create an annotation`);
+        }
+
         const domainObjectKeyString = this.openmct.objects.makeKeyString(domainObject.identifier);
         const originalPathObjects = await this.openmct.objects.getOriginalPath(domainObjectKeyString);
         const originalContextPath = this.openmct.objects.getRelativePath(originalPathObjects);
@@ -139,7 +168,9 @@ export default class AnnotationAPI extends EventEmitter {
         const success = await this.openmct.objects.save(createdObject);
         if (success) {
             this.emit('annotationCreated', createdObject);
-            this.#updateAnnotationModified(domainObject);
+            Object.values(targetDomainObjects).forEach(targetDomainObject => {
+                this.#updateAnnotationModified(targetDomainObject);
+            });
 
             return createdObject;
         } else {
@@ -147,8 +178,15 @@ export default class AnnotationAPI extends EventEmitter {
         }
     }
 
-    #updateAnnotationModified(domainObject) {
-        this.openmct.objects.mutate(domainObject, this.ANNOTATION_LAST_CREATED, Date.now());
+    #updateAnnotationModified(targetDomainObject) {
+        // As certain telemetry objects are immutable, we'll need to check here first
+        // to see if we can add the annotation last created property.
+        // TODO: This should be removed once we have a better way to handle immutable telemetry objects
+        if (targetDomainObject.isMutable) {
+            this.openmct.objects.mutate(targetDomainObject, this.ANNOTATION_LAST_CREATED, Date.now());
+        } else {
+            this.emit('targetDomainObjectAnnotated', targetDomainObject);
+        }
     }
 
     /**
@@ -162,7 +200,7 @@ export default class AnnotationAPI extends EventEmitter {
 
     /**
     * @method isAnnotation
-    * @param {import('../objects/ObjectAPI').DomainObject} domainObject domainObject the domainObject in question
+    * @param {DomainObject} domainObject the domainObject in question
     * @returns {Boolean} Returns true if the domain object is an annotation
     */
     isAnnotation(domainObject) {
@@ -190,56 +228,19 @@ export default class AnnotationAPI extends EventEmitter {
 
     /**
     * @method getAnnotations
-    * @param {String} query - The keystring of the domain object to search for annotations for
-    * @returns {import('../objects/ObjectAPI').DomainObject[]} Returns an array of domain objects that match the search query
+    * @param {Identifier} domainObjectIdentifier - The domain object identifier to use to search for annotations. For example, a telemetry object identifier.
+    * @returns {DomainObject[]} Returns an array of annotations that match the search query
     */
-    async getAnnotations(query) {
-        const searchResults = (await Promise.all(this.openmct.objects.search(query, null, this.openmct.objects.SEARCH_TYPES.ANNOTATIONS))).flat();
+    async getAnnotations(domainObjectIdentifier) {
+        const keyStringQuery = this.openmct.objects.makeKeyString(domainObjectIdentifier);
+        const searchResults = (await Promise.all(this.openmct.objects.search(keyStringQuery, null, this.openmct.objects.SEARCH_TYPES.ANNOTATIONS))).flat();
 
         return searchResults;
     }
 
-    /**
-    * @method addSingleAnnotationTag
-    * @param {import('../objects/ObjectAPI').DomainObject=} existingAnnotation - An optional annotation to add the tag to. If not specified, we will create an annotation.
-    * @param {import('../objects/ObjectAPI').DomainObject} targetDomainObject - The domain object the annotation will point to.
-    * @param {Object=} targetSpecificDetails - Optional object to add to the target object. E.g., for notebooks this would be an entryID
-    * @param {AnnotationType} annotationType - The type of annotation this is for.
-    * @returns {import('../objects/ObjectAPI').DomainObject[]} Returns the annotation that was either created or passed as an existingAnnotation
-    */
-    async addSingleAnnotationTag(existingAnnotation, targetDomainObject, targetSpecificDetails, annotationType, tag) {
-        if (!existingAnnotation) {
-            const targets = {};
-            const targetKeyString = this.openmct.objects.makeKeyString(targetDomainObject.identifier);
-            targets[targetKeyString] = targetSpecificDetails;
-            const contentText = `${annotationType} tag`;
-            const annotationCreationArguments = {
-                name: contentText,
-                domainObject: targetDomainObject,
-                annotationType,
-                tags: [tag],
-                contentText,
-                targets
-            };
-            const newAnnotation = await this.create(annotationCreationArguments);
-
-            return newAnnotation;
-        } else {
-            if (!existingAnnotation.tags.includes(tag)) {
-                throw new Error(`Existing annotation did not contain tag ${tag}`);
-            }
-
-            if (existingAnnotation._deleted) {
-                this.unDeleteAnnotation(existingAnnotation);
-            }
-
-            return existingAnnotation;
-        }
-    }
-
     /**
     * @method deleteAnnotations
-    * @param {import('../objects/ObjectAPI').DomainObject[]} existingAnnotation - An array of annotations to delete (set _deleted to true)
+    * @param {DomainObject[]} existingAnnotation - An array of annotations to delete (set _deleted to true)
     */
     deleteAnnotations(annotations) {
         if (!annotations) {
@@ -255,7 +256,7 @@ export default class AnnotationAPI extends EventEmitter {
 
     /**
     * @method deleteAnnotations
-    * @param {import('../objects/ObjectAPI').DomainObject} existingAnnotation - An annotations to undelete (set _deleted to false)
+    * @param {DomainObject} annotation - An annotation to undelete (set _deleted to false)
     */
     unDeleteAnnotation(annotation) {
         if (!annotation) {
@@ -265,6 +266,39 @@ export default class AnnotationAPI extends EventEmitter {
         this.openmct.objects.mutate(annotation, '_deleted', false);
     }
 
+    getTagsFromAnnotations(annotations, filterDuplicates = true) {
+        if (!annotations) {
+            return [];
+        }
+
+        let tagsFromAnnotations = annotations.flatMap((annotation) => {
+            if (annotation._deleted) {
+                return [];
+            } else {
+                return annotation.tags;
+            }
+        });
+
+        if (filterDuplicates) {
+            tagsFromAnnotations = tagsFromAnnotations.filter((tag, index, tagArray) => {
+                return tagArray.indexOf(tag) === index;
+            });
+        }
+
+        const fullTagModels = this.#addTagMetaInformationToTags(tagsFromAnnotations);
+
+        return fullTagModels;
+    }
+
+    #addTagMetaInformationToTags(tags) {
+        return tags.map(tagKey => {
+            const tagModel = this.availableTags[tagKey];
+            tagModel.tagID = tagKey;
+
+            return tagModel;
+        });
+    }
+
     #getMatchingTags(query) {
         if (!query) {
             return [];
@@ -283,12 +317,7 @@ export default class AnnotationAPI extends EventEmitter {
 
     #addTagMetaInformationToResults(results, matchingTagKeys) {
         const tagsAddedToResults = results.map(result => {
-            const fullTagModels = result.tags.map(tagKey => {
-                const tagModel = this.availableTags[tagKey];
-                tagModel.tagID = tagKey;
-
-                return tagModel;
-            });
+            const fullTagModels = this.#addTagMetaInformationToTags(result.tags);
 
             return {
                 fullTagModels,
@@ -338,6 +367,33 @@ export default class AnnotationAPI extends EventEmitter {
         return combinedResults;
     }
 
+    /**
+    * @method #breakApartSeparateTargets
+    * @param {Array} results A set of search results that could have the multiple targets for the same result
+    * @returns {Array} The same set of results, but with each target separated out into its own result
+    */
+    #breakApartSeparateTargets(results) {
+        const separateResults = [];
+        results.forEach(result => {
+            Object.keys(result.targets).forEach(targetID => {
+                const separatedResult = {
+                    ...result
+                };
+                separatedResult.targets = {
+                    [targetID]: result.targets[targetID]
+                };
+                separatedResult.targetModels = result.targetModels.filter(targetModel => {
+                    const targetKeyString = this.openmct.objects.makeKeyString(targetModel.identifier);
+
+                    return targetKeyString === targetID;
+                });
+                separateResults.push(separatedResult);
+            });
+        });
+
+        return separateResults;
+    }
+
     /**
     * @method searchForTags
     * @param {String} query A query to match against tags. E.g., "dr" will match the tags "drilling" and "driving"
@@ -360,7 +416,8 @@ export default class AnnotationAPI extends EventEmitter {
         const resultsWithValidPath = appliedTargetsModels.filter(result => {
             return this.openmct.objects.isReachable(result.targetModels?.[0]?.originalPath);
         });
+        const breakApartSeparateTargets = this.#breakApartSeparateTargets(resultsWithValidPath);
 
-        return resultsWithValidPath;
+        return breakApartSeparateTargets;
     }
 }

src/api/annotation/AnnotationAPISpec.js

@@ -108,6 +108,7 @@ describe("The Annotation API", () => {
                 annotationType: openmct.annotation.ANNOTATION_TYPES.NOTEBOOK,
                 tags: ['sometag'],
                 contentText: "fooContext",
+                targetDomainObjects: [mockDomainObject],
                 targets: {'fooTarget': {}}
             };
             const annotationObject = await openmct.annotation.create(annotationCreationArguments);
@@ -124,27 +125,39 @@ describe("The Annotation API", () => {
     });
 
     describe("Tagging", () => {
+        let tagCreationArguments;
+        beforeEach(() => {
+            tagCreationArguments = {
+                name: 'Test Annotation',
+                domainObject: mockDomainObject,
+                annotationType: openmct.annotation.ANNOTATION_TYPES.NOTEBOOK,
+                tags: ['aWonderfulTag'],
+                contentText: 'fooContext',
+                targets: {'fooNameSpace:some-object': {entryId: 'fooBarEntry'}},
+                targetDomainObjects: [mockDomainObject]
+            };
+        });
         it("can create a tag", async () => {
-            const annotationObject = await openmct.annotation.addSingleAnnotationTag(null, mockDomainObject, {entryId: 'foo'}, openmct.annotation.ANNOTATION_TYPES.NOTEBOOK, 'aWonderfulTag');
+            const annotationObject = await openmct.annotation.create(tagCreationArguments);
             expect(annotationObject).toBeDefined();
             expect(annotationObject.type).toEqual('annotation');
             expect(annotationObject.tags).toContain('aWonderfulTag');
         });
         it("can delete a tag", async () => {
-            const annotationObject = await openmct.annotation.addSingleAnnotationTag(null, mockDomainObject, {entryId: 'foo'}, openmct.annotation.ANNOTATION_TYPES.NOTEBOOK, 'aWonderfulTag');
+            const annotationObject = await openmct.annotation.create(tagCreationArguments);
             expect(annotationObject).toBeDefined();
             openmct.annotation.deleteAnnotations([annotationObject]);
             expect(annotationObject._deleted).toBeTrue();
         });
         it("throws an error if deleting non-existent tag", async () => {
-            const annotationObject = await openmct.annotation.addSingleAnnotationTag(null, mockDomainObject, {entryId: 'foo'}, openmct.annotation.ANNOTATION_TYPES.NOTEBOOK, 'aWonderfulTag');
+            const annotationObject = await openmct.annotation.create(tagCreationArguments);
             expect(annotationObject).toBeDefined();
             expect(() => {
                 openmct.annotation.removeAnnotationTag(annotationObject, 'ThisTagShouldNotExist');
             }).toThrow();
         });
         it("can remove all tags", async () => {
-            const annotationObject = await openmct.annotation.addSingleAnnotationTag(null, mockDomainObject, {entryId: 'foo'}, openmct.annotation.ANNOTATION_TYPES.NOTEBOOK, 'aWonderfulTag');
+            const annotationObject = await openmct.annotation.create(tagCreationArguments);
             expect(annotationObject).toBeDefined();
             expect(() => {
                 openmct.annotation.deleteAnnotations([annotationObject]);
@@ -152,13 +165,13 @@ describe("The Annotation API", () => {
             expect(annotationObject._deleted).toBeTrue();
         });
         it("can add/delete/add a tag", async () => {
-            let annotationObject = await openmct.annotation.addSingleAnnotationTag(null, mockDomainObject, {entryId: 'foo'}, openmct.annotation.ANNOTATION_TYPES.NOTEBOOK, 'aWonderfulTag');
+            let annotationObject = await openmct.annotation.create(tagCreationArguments);
             expect(annotationObject).toBeDefined();
             expect(annotationObject.type).toEqual('annotation');
             expect(annotationObject.tags).toContain('aWonderfulTag');
             openmct.annotation.deleteAnnotations([annotationObject]);
             expect(annotationObject._deleted).toBeTrue();
-            annotationObject = await openmct.annotation.addSingleAnnotationTag(null, mockDomainObject, {entryId: 'foo'}, openmct.annotation.ANNOTATION_TYPES.NOTEBOOK, 'aWonderfulTag');
+            annotationObject = await openmct.annotation.create(tagCreationArguments);
             expect(annotationObject).toBeDefined();
             expect(annotationObject.type).toEqual('annotation');
             expect(annotationObject.tags).toContain('aWonderfulTag');

src/api/forms/FormsAPI.js

@@ -23,13 +23,11 @@
 import FormController from './FormController';
 import FormProperties from './components/FormProperties.vue';
 
-import EventEmitter from 'EventEmitter';
 import Vue from 'vue';
+import _ from 'lodash';
 
-export default class FormsAPI extends EventEmitter {
+export default class FormsAPI {
     constructor(openmct) {
-        super();
-
         this.openmct = openmct;
         this.formController = new FormController(openmct);
     }
@@ -92,29 +90,75 @@ export default class FormsAPI extends EventEmitter {
 
     /**
      * Show form inside an Overlay dialog with given form structure
+     * @public
+     * @param {Array<Section>} formStructure a form structure, array of section
+     * @param {Object} options
+     *      @property {function} onChange a callback function when any changes detected
+     */
+    showForm(formStructure, {
+        onChange
+    } = {}) {
+        let overlay;
+
+        const self = this;
+
+        const overlayEl = document.createElement('div');
+        overlayEl.classList.add('u-contents');
+
+        overlay = self.openmct.overlays.overlay({
+            element: overlayEl,
+            size: 'dialog'
+        });
+
+        let formSave;
+        let formCancel;
+        const promise = new Promise((resolve, reject) => {
+            formSave = resolve;
+            formCancel = reject;
+        });
+
+        this.showCustomForm(formStructure, {
+            element: overlayEl,
+            onChange
+        })
+            .then((response) => {
+                overlay.dismiss();
+                formSave(response);
+            })
+            .catch((response) => {
+                overlay.dismiss();
+                formCancel(response);
+            });
+
+        return promise;
+    }
+
+    /**
+     * Show form as a child of the element provided with given form structure
      *
      * @public
      * @param {Array<Section>} formStructure a form structure, array of section
      * @param {Object} options
      *      @property {HTMLElement} element Parent Element to render a Form
      *      @property {function} onChange a callback function when any changes detected
-     *      @property {function} onSave a callback function when form is submitted
-     *      @property {function} onDismiss a callback function when form is dismissed
      */
-    showForm(formStructure, {
+    showCustomForm(formStructure, {
         element,
         onChange
     } = {}) {
-        const changes = {};
-        let overlay;
-        let onDismiss;
-        let onSave;
+        if (element === undefined) {
+            throw Error('Required element parameter not provided');
+        }
 
         const self = this;
 
+        const changes = {};
+        let formSave;
+        let formCancel;
+
         const promise = new Promise((resolve, reject) => {
-            onSave = onFormAction(resolve);
-            onDismiss = onFormAction(reject);
+            formSave = onFormAction(resolve);
+            formCancel = onFormAction(reject);
         });
 
         const vm = new Vue({
@@ -126,26 +170,17 @@ export default class FormsAPI extends EventEmitter {
                 return {
                     formStructure,
                     onChange: onFormPropertyChange,
-                    onDismiss,
-                    onSave
+                    onCancel: formCancel,
+                    onSave: formSave
                 };
             },
-            template: '<FormProperties :model="formStructure" @onChange="onChange" @onDismiss="onDismiss" @onSave="onSave"></FormProperties>'
+            template: '<FormProperties :model="formStructure" @onChange="onChange" @onCancel="onCancel" @onSave="onSave"></FormProperties>'
         }).$mount();
 
         const formElement = vm.$el;
-        if (element) {
-            element.append(formElement);
-        } else {
-            overlay = self.openmct.overlays.overlay({
-                element: vm.$el,
-                size: 'dialog',
-                onDestroy: () => vm.$destroy()
-            });
-        }
+        element.append(formElement);
 
         function onFormPropertyChange(data) {
-            self.emit('onFormPropertyChange', data);
             if (onChange) {
                 onChange(data);
             }
@@ -158,17 +193,14 @@ export default class FormsAPI extends EventEmitter {
                     key = property.join('.');
                 }
 
-                changes[key] = data.value;
+                _.set(changes, key, data.value);
             }
         }
 
         function onFormAction(callback) {
             return () => {
-                if (element) {
-                    formElement.remove();
-                } else {
-                    overlay.dismiss();
-                }
+                formElement.remove();
+                vm.$destroy();
 
                 if (callback) {
                     callback(changes);

src/api/forms/FormsAPISpec.js

@@ -133,7 +133,7 @@ describe('The Forms API', () => {
         });
 
         it('when container element is provided', (done) => {
-            openmct.forms.showForm(formStructure, { element }).catch(() => {
+            openmct.forms.showCustomForm(formStructure, { element }).catch(() => {
                 done();
             });
             const titleElement = element.querySelector('.c-overlay__dialog-title');

src/api/forms/components/FormProperties.vue

@@ -73,7 +73,7 @@
             tabindex="0"
             class="c-button js-cancel-button"
             aria-label="Cancel"
-            @click="onDismiss"
+            @click="onCancel"
         >
             {{ cancelLabel }}
         </button>
@@ -164,8 +164,8 @@ export default {
 
             this.$emit('onChange', data);
         },
-        onDismiss() {
-            this.$emit('onDismiss');
+        onCancel() {
+            this.$emit('onCancel');
         },
         onSave() {
             this.$emit('onSave');

src/api/forms/components/controls/FileInput.vue

@@ -30,7 +30,7 @@
             id="fileElem"
             ref="fileInput"
             type="file"
-            accept=".json"
+            :accept="acceptableFileTypes"
             style="display:none"
         >
         <button
@@ -72,6 +72,13 @@ export default {
         },
         removable() {
             return (this.fileInfo || this.model.value) && this.model.removable;
+        },
+        acceptableFileTypes() {
+            if (this.model.type) {
+                return this.model.type;
+            }
+
+            return 'application/json';
         }
     },
     mounted() {
@@ -80,7 +87,13 @@ export default {
     methods: {
         handleFiles() {
             const fileList = this.$refs.fileInput.files;
-            this.readFile(fileList[0]);
+            const file = fileList[0];
+
+            if (this.acceptableFileTypes === 'application/json') {
+                this.readFile(file);
+            } else {
+                this.handleRawFile(file);
+            }
         },
         readFile(file) {
             const self = this;
@@ -104,6 +117,21 @@ export default {
 
             fileReader.readAsText(file);
         },
+        handleRawFile(file) {
+            const fileInfo = {
+                name: file.name,
+                body: file
+            };
+
+            this.fileInfo = Object.assign({}, fileInfo);
+
+            const data = {
+                model: this.model,
+                value: fileInfo
+            };
+
+            this.$emit('onChange', data);
+        },
         selectFile() {
             this.$refs.fileInput.click();
         },

src/api/forms/components/controls/SelectField.vue

@@ -26,6 +26,7 @@
         v-model="selected"
         required="model.required"
         name="mctControl"
+        :aria-label="model.ariaLabel || model.name"
         @change="onChange($event)"
     >
         <option

src/api/forms/components/controls/TextAreaField.vue

@@ -27,6 +27,7 @@
         :class="model.cssClass"
     >
         <textarea
+            :id="`${model.key}-textarea`"
             v-model="field"
             type="text"
             :size="model.size"

src/api/forms/components/controls/ToggleSwitchField.vue

@@ -29,6 +29,7 @@
         <ToggleSwitch
             id="switchId"
             :checked="isChecked"
+            :name="model.name"
             @change="toggleCheckBox"
         />
     </span>

src/api/menu/components/Menu.vue

@@ -3,39 +3,52 @@
     class="c-menu"
     :class="options.menuClass"
 >
-    <ul v-if="options.actions.length && options.actions[0].length">
+    <ul
+        v-if="options.actions.length && options.actions[0].length"
+        role="menu"
+    >
         <template
             v-for="(actionGroups, index) in options.actions"
         >
-            <li
-                v-for="action in actionGroups"
-                :key="action.name"
-                :class="[action.cssClass, action.isDisabled ? 'disabled' : '']"
-                :title="action.description"
-                :data-testid="action.testId || false"
-                @click="action.onItemClicked"
-            >
-                {{ action.name }}
-            </li>
             <div
-                v-if="index !== options.actions.length - 1"
                 :key="index"
-                class="c-menu__section-separator"
+                role="group"
             >
-            </div>
-            <li
-                v-if="actionGroups.length === 0"
-                :key="index"
-            >
-                No actions defined.
-            </li>
-        </template>
+                <li
+                    v-for="action in actionGroups"
+                    :key="action.name"
+                    role="menuitem"
+                    :class="[action.cssClass, action.isDisabled ? 'disabled' : '']"
+                    :title="action.description"
+                    :data-testid="action.testId || false"
+                    @click="action.onItemClicked"
+                >
+                    {{ action.name }}
+                </li>
+                <div
+                    v-if="index !== options.actions.length - 1"
+                    :key="index"
+                    role="separator"
+                    class="c-menu__section-separator"
+                >
+                </div>
+                <li
+                    v-if="actionGroups.length === 0"
+                    :key="index"
+                >
+                    No actions defined.
+                </li>
+            </div></template>
     </ul>
 
-    <ul v-else>
+    <ul
+        v-else
+        role="menu"
+    >
         <li
             v-for="action in options.actions"
             :key="action.name"
+            role="menuitem"
             :class="[action.cssClass, action.isDisabled ? 'disabled' : '']"
             :title="action.description"
             :data-testid="action.testId || false"

src/api/menu/components/SuperMenu.vue

@@ -5,45 +5,54 @@
 >
     <ul
         v-if="options.actions.length && options.actions[0].length"
+        role="menu"
         class="c-super-menu__menu"
     >
         <template
             v-for="(actionGroups, index) in options.actions"
         >
-            <li
-                v-for="action in actionGroups"
-                :key="action.name"
-                :class="[action.cssClass, action.isDisabled ? 'disabled' : '']"
-                :title="action.description"
-                :data-testid="action.testId || false"
-                @click="action.onItemClicked"
-                @mouseover="toggleItemDescription(action)"
-                @mouseleave="toggleItemDescription()"
-            >
-                {{ action.name }}
-            </li>
             <div
-                v-if="index !== options.actions.length - 1"
                 :key="index"
-                class="c-menu__section-separator"
+                role="group"
             >
-            </div>
-            <li
-                v-if="actionGroups.length === 0"
-                :key="index"
-            >
-                No actions defined.
-            </li>
-        </template>
+                <li
+                    v-for="action in actionGroups"
+                    :key="action.name"
+                    role="menuitem"
+                    :class="[action.cssClass, action.isDisabled ? 'disabled' : '']"
+                    :title="action.description"
+                    :data-testid="action.testId || false"
+                    @click="action.onItemClicked"
+                    @mouseover="toggleItemDescription(action)"
+                    @mouseleave="toggleItemDescription()"
+                >
+                    {{ action.name }}
+                </li>
+                <div
+                    v-if="index !== options.actions.length - 1"
+                    :key="index"
+                    role="separator"
+                    class="c-menu__section-separator"
+                >
+                </div>
+                <li
+                    v-if="actionGroups.length === 0"
+                    :key="index"
+                >
+                    No actions defined.
+                </li>
+            </div></template>
     </ul>
 
     <ul
         v-else
         class="c-super-menu__menu"
+        role="menu"
     >
         <li
             v-for="action in options.actions"
             :key="action.name"
+            role="menuitem"
             :class="action.cssClass"
             :title="action.description"
             :data-testid="action.testId || false"

src/api/notifications/NotificationAPI.js

@@ -31,7 +31,31 @@
  * @namespace platform/api/notifications
  */
 import moment from 'moment';
-import EventEmitter from 'EventEmitter';
+import EventEmitter from 'eventemitter3';
+
+/**
+ * @typedef {object} NotificationProperties
+ * @property {function} dismiss Dismiss the notification
+ * @property {NotificationModel} model The Notification model
+ * @property {(progressPerc: number, progressText: string) => void} [progress] Update the progress of the notification
+ */
+
+/**
+ * @typedef {EventEmitter & NotificationProperties} Notification
+ */
+
+/**
+ * @typedef {object} NotificationLink
+ * @property {function} onClick The function to be called when the link is clicked
+ * @property {string} cssClass A CSS class name to style the link
+ * @property {string} text The text to be displayed for the link
+ */
+
+/**
+ * @typedef {object} NotificationOptions
+ * @property {number} [autoDismissTimeout] Milliseconds to wait before automatically dismissing the notification
+ * @property {NotificationLink} [link] A link for the notification
+ */
 
 /**
  * A representation of a banner notification. Banner notifications
@@ -40,13 +64,17 @@ import EventEmitter from 'EventEmitter';
  * dialogs so that the same information can be provided in a dialog
  * and then minimized to a banner notification if needed, or vice-versa.
  *
+ * @see DialogModel
  * @typedef {object} NotificationModel
  * @property {string} message The message to be displayed by the notification
  * @property {number | 'unknown'} [progress] The progress of some ongoing task. Should be a number between 0 and 100, or
  * with the string literal 'unknown'.
  * @property {string} [progressText] A message conveying progress of some ongoing task.
-
- * @see DialogModel
+ * @property {string} [severity] The severity of the notification. Should be one of 'info', 'alert', or 'error'.
+ * @property {string} [timestamp] The time at which the notification was created. Should be a string in ISO 8601 format.
+ * @property {boolean} [minimized] Whether or not the notification has been minimized
+ * @property {boolean} [autoDismiss] Whether the notification should be automatically dismissed after a short period of time.
+ * @property {NotificationOptions} options The notification options
  */
 
 const DEFAULT_AUTO_DISMISS_TIMEOUT = 3000;
@@ -55,18 +83,19 @@ const MINIMIZE_ANIMATION_TIMEOUT = 300;
 /**
  * The notification service is responsible for informing the user of
  * events via the use of banner notifications.
- * @memberof ui/notification
- * @constructor */
-
+*/
 export default class NotificationAPI extends EventEmitter {
     constructor() {
         super();
+        /** @type {Notification[]} */
         this.notifications = [];
+        /** @type {{severity: "info" | "alert" | "error"}} */
         this.highest = { severity: "info" };
 
-        /*
+        /**
         * A context in which to hold the active notification and a
         * handle to its timeout.
+        * @type {Notification | undefined}
         */
         this.activeNotification = undefined;
     }
@@ -75,16 +104,12 @@ export default class NotificationAPI extends EventEmitter {
      * Info notifications are low priority informational messages for the user. They will be auto-destroy after a brief
      * period of time.
      * @param {string} message The message to display to the user
-     * @param {Object} [options] object with following properties
-     *      autoDismissTimeout: {number} in miliseconds to automatically dismisses notification
-     *      link: {Object} Add a link to notifications for navigation
-     *              onClick: callback function
-     *              cssClass: css class name to add style on link
-     *              text: text to display for link
-     * @returns {InfoNotification}
+     * @param {NotificationOptions} [options] The notification options
+     * @returns {Notification}
      */
     info(message, options = {}) {
-        let notificationModel = {
+        /** @type {NotificationModel} */
+        const notificationModel = {
             message: message,
             autoDismiss: true,
             severity: "info",
@@ -97,7 +122,7 @@ export default class NotificationAPI extends EventEmitter {
     /**
      * Present an alert to the user.
      * @param {string} message The message to display to the user.
-     * @param {Object} [options] object with following properties
+     * @param {NotificationOptions} [options] object with following properties
      *      autoDismissTimeout: {number} in milliseconds to automatically dismisses notification
      *      link: {Object} Add a link to notifications for navigation
      *              onClick: callback function
@@ -106,7 +131,7 @@ export default class NotificationAPI extends EventEmitter {
      * @returns {Notification}
      */
     alert(message, options = {}) {
-        let notificationModel = {
+        const notificationModel = {
             message: message,
             severity: "alert",
             options
@@ -147,7 +172,8 @@ export default class NotificationAPI extends EventEmitter {
             message: message,
             progressPerc: progressPerc,
             progressText: progressText,
-            severity: "info"
+            severity: "info",
+            options: {}
         };
 
         return this._notify(notificationModel);
@@ -165,8 +191,13 @@ export default class NotificationAPI extends EventEmitter {
      * dismissed.
      *
      * @private
+     * @param {Notification | undefined} notification
      */
     _minimize(notification) {
+        if (!notification) {
+            return;
+        }
+
         //Check this is a known notification
         let index = this.notifications.indexOf(notification);
 
@@ -204,8 +235,13 @@ export default class NotificationAPI extends EventEmitter {
      * dismiss
      *
      * @private
+     * @param {Notification | undefined} notification
      */
     _dismiss(notification) {
+        if (!notification) {
+            return;
+        }
+
         //Check this is a known notification
         let index = this.notifications.indexOf(notification);
 
@@ -236,10 +272,11 @@ export default class NotificationAPI extends EventEmitter {
      * dismiss or minimize where appropriate.
      *
      * @private
+     * @param {Notification | undefined} notification
      */
     _dismissOrMinimize(notification) {
-        let model = notification.model;
-        if (model.severity === "info") {
+        let model = notification?.model;
+        if (model?.severity === "info") {
             this._dismiss(notification);
         } else {
             this._minimize(notification);
@@ -251,10 +288,11 @@ export default class NotificationAPI extends EventEmitter {
      */
     _setHighestSeverity() {
         let severity = {
-            "info": 1,
-            "alert": 2,
-            "error": 3
+            info: 1,
+            alert: 2,
+            error: 3
         };
+
         this.highest.severity = this.notifications.reduce((previous, notification) => {
             if (severity[notification.model.severity] > severity[previous]) {
                 return notification.model.severity;
@@ -312,8 +350,11 @@ export default class NotificationAPI extends EventEmitter {
 
     /**
      * @private
+     * @param {NotificationModel} notificationModel
+     * @returns {Notification}
      */
     _createNotification(notificationModel) {
+        /** @type {Notification} */
         let notification = new EventEmitter();
         notification.model = notificationModel;
         notification.dismiss = () => {
@@ -333,6 +374,7 @@ export default class NotificationAPI extends EventEmitter {
 
     /**
      * @private
+     * @param {Notification | undefined} notification
      */
     _setActiveNotification(notification) {
         this.activeNotification = notification;

src/api/objects/InterceptorRegistry.js

@@ -19,6 +19,7 @@
  * this source code distribution or the Licensing information page available
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
+const DEFAULT_INTERCEPTOR_PRIORITY = 0;
 export default class InterceptorRegistry {
     /**
      * A InterceptorRegistry maintains the definitions for different interceptors that may be invoked on domain objects.
@@ -45,7 +46,6 @@ export default class InterceptorRegistry {
      * @memberof module:openmct.InterceptorRegistry#
      */
     addInterceptor(interceptorDef) {
-        //TODO: sort by priority
         this.interceptors.push(interceptorDef);
     }
 
@@ -56,10 +56,18 @@ export default class InterceptorRegistry {
      * @memberof module:openmct.InterceptorRegistry#
      */
     getInterceptors(identifier, object) {
+
+        function byPriority(interceptorA, interceptorB) {
+            let priorityA = interceptorA.priority ?? DEFAULT_INTERCEPTOR_PRIORITY;
+            let priorityB = interceptorB.priority ?? DEFAULT_INTERCEPTOR_PRIORITY;
+
+            return priorityB - priorityA;
+        }
+
         return this.interceptors.filter(interceptor => {
             return typeof interceptor.appliesTo === 'function'
                 && interceptor.appliesTo(identifier, object);
-        });
+        }).sort(byPriority);
     }
 
 }

src/api/objects/MutableDomainObject.js

@@ -75,11 +75,7 @@ class MutableDomainObject {
         return eventOff;
     }
     $set(path, value) {
-        _.set(this, path, value);
-
-        if (path !== 'persisted' && path !== 'modified') {
-            _.set(this, 'modified', Date.now());
-        }
+        MutableDomainObject.mutateObject(this, path, value);
 
         //Emit secret synchronization event first, so that all objects are in sync before subsequent events fired.
         this._globalEventEmitter.emit(qualifiedEventName(this, '$_synchronize_model'), this);
@@ -136,8 +132,11 @@ class MutableDomainObject {
     }
 
     static mutateObject(object, path, value) {
+        if (path !== 'persisted') {
+            _.set(object, 'modified', Date.now());
+        }
+
         _.set(object, path, value);
-        _.set(object, 'modified', Date.now());
     }
 }
 

src/api/objects/ObjectAPI.js

@@ -189,34 +189,36 @@ export default class ObjectAPI {
     /**
      * Get a domain object.
      *
-     * @method get
-     * @memberof module:openmct.ObjectProvider#
      * @param {string} key the key for the domain object to load
-     * @param {AbortController.signal} abortSignal (optional) signal to abort fetch requests
-     * @returns {Promise} a promise which will resolve when the domain object
+     * @param {AbortSignal} abortSignal (optional) signal to abort fetch requests
+     * @param {boolean} [forceRemote=false] defaults to false. If true, will skip cached and
+     *          dirty/in-transaction objects use and the provider.get method
+     * @returns {Promise<DomainObject>} a promise which will resolve when the domain object
      *          has been saved, or be rejected if it cannot be saved
      */
-    get(identifier, abortSignal) {
+    get(identifier, abortSignal, forceRemote = false) {
         let keystring = this.makeKeyString(identifier);
 
-        if (this.cache[keystring] !== undefined) {
-            return this.cache[keystring];
-        }
+        if (!forceRemote) {
+            if (this.cache[keystring] !== undefined) {
+                return this.cache[keystring];
+            }
 
-        identifier = utils.parseKeyString(identifier);
+            identifier = utils.parseKeyString(identifier);
 
-        if (this.isTransactionActive()) {
-            let dirtyObject = this.transaction.getDirtyObject(identifier);
+            if (this.isTransactionActive()) {
+                let dirtyObject = this.transaction.getDirtyObject(identifier);
 
-            if (dirtyObject) {
-                return Promise.resolve(dirtyObject);
+                if (dirtyObject) {
+                    return Promise.resolve(dirtyObject);
+                }
             }
         }
 
         const provider = this.getProvider(identifier);
 
         if (!provider) {
-            throw new Error('No Provider Matched');
+            throw new Error(`No Provider Matched for keyString "${this.makeKeyString(identifier)}}"`);
         }
 
         if (!provider.get) {
@@ -357,13 +359,13 @@ export default class ObjectAPI {
     async save(domainObject) {
         const provider = this.getProvider(domainObject.identifier);
         let result;
+        let lastPersistedTime;
 
         if (!this.isPersistable(domainObject.identifier)) {
             result = Promise.reject('Object provider does not support saving');
         } else if (this.#hasAlreadyBeenPersisted(domainObject)) {
             result = Promise.resolve(true);
         } else {
-            const persistedTime = Date.now();
             const username = await this.#getCurrentUsername();
             const isNewObject = domainObject.persisted === undefined;
             let savedResolve;
@@ -375,15 +377,22 @@ export default class ObjectAPI {
                 savedReject = reject;
             });
 
-            this.#mutate(domainObject, 'persisted', persistedTime);
             this.#mutate(domainObject, 'modifiedBy', username);
 
             if (isNewObject) {
-                this.#mutate(domainObject, 'created', persistedTime);
                 this.#mutate(domainObject, 'createdBy', username);
 
+                const createdTime = Date.now();
+                this.#mutate(domainObject, 'created', createdTime);
+
+                const persistedTime = Date.now();
+                this.#mutate(domainObject, 'persisted', persistedTime);
+
                 savedObjectPromise = provider.create(domainObject);
             } else {
+                lastPersistedTime = domainObject.persisted;
+                const persistedTime = Date.now();
+                this.#mutate(domainObject, 'persisted', persistedTime);
                 savedObjectPromise = provider.update(domainObject);
             }
 
@@ -391,6 +400,10 @@ export default class ObjectAPI {
                 savedObjectPromise.then(response => {
                     savedResolve(response);
                 }).catch((error) => {
+                    if (!isNewObject) {
+                        this.#mutate(domainObject, 'persisted', lastPersistedTime);
+                    }
+
                     savedReject(error);
                 });
             } else {
@@ -398,9 +411,20 @@ export default class ObjectAPI {
             }
         }
 
-        return result.catch((error) => {
+        return result.catch(async (error) => {
             if (error instanceof this.errors.Conflict) {
-                this.openmct.notifications.error(`Conflict detected while saving ${this.makeKeyString(domainObject.identifier)}`);
+                // Synchronized objects will resolve their own conflicts
+                if (this.SYNCHRONIZED_OBJECT_TYPES.includes(domainObject.type)) {
+                    this.openmct.notifications.info(`Conflict detected while saving "${this.makeKeyString(domainObject.name)}", attempting to resolve`);
+                } else {
+                    this.openmct.notifications.error(`Conflict detected while saving ${this.makeKeyString(domainObject.identifier)}`);
+
+                    if (this.isTransactionActive()) {
+                        this.endTransaction();
+                    }
+
+                    await this.refresh(domainObject);
+                }
             }
 
             throw error;
@@ -714,6 +738,46 @@ export default class ObjectAPI {
         }
     }
 
+    /**
+     * Parse and construct an `objectPath` from a `navigationPath`.
+     *
+     * A `navigationPath` is a string of the form `"/browse/<keyString>/<keyString>/..."` that is used
+     * by the Open MCT router to navigate to a specific object.
+     *
+     * Throws an error if the `navigationPath` is malformed.
+     *
+     * @param {string} navigationPath
+     * @returns {DomainObject[]} objectPath
+     */
+    async getRelativeObjectPath(navigationPath) {
+        if (!navigationPath.startsWith('/browse/')) {
+            throw new Error(`Malformed navigation path: "${navigationPath}"`);
+        }
+
+        navigationPath = navigationPath.replace('/browse/', '');
+
+        if (!navigationPath || navigationPath === '/') {
+            return [];
+        }
+
+        // Remove any query params and split on '/'
+        const keyStrings = navigationPath.split('?')?.[0].split('/');
+
+        if (keyStrings[0] !== 'ROOT') {
+            keyStrings.unshift('ROOT');
+        }
+
+        const objectPath = (await Promise.all(
+            keyStrings.map(
+                keyString => this.supportsMutation(keyString)
+                    ? this.getMutable(utils.parseKeyString(keyString))
+                    : this.get(utils.parseKeyString(keyString))
+            )
+        )).reverse();
+
+        return objectPath;
+    }
+
     isObjectPathToALink(domainObject, objectPath) {
         return objectPath !== undefined
             && objectPath.length > 1

src/api/objects/ObjectAPISpec.js

@@ -94,6 +94,35 @@ describe("The Object API", () => {
                 expect(mockProvider.create).not.toHaveBeenCalled();
                 expect(mockProvider.update).toHaveBeenCalled();
             });
+            describe("the persisted timestamp for existing objects", () => {
+                let persistedTimestamp;
+                beforeEach(() => {
+                    persistedTimestamp = Date.now() - FIFTEEN_MINUTES;
+                    mockDomainObject.persisted = persistedTimestamp;
+                    mockDomainObject.modified = Date.now();
+                });
+
+                it("is updated", async () => {
+                    await objectAPI.save(mockDomainObject);
+                    expect(mockDomainObject.persisted).toBeDefined();
+                    expect(mockDomainObject.persisted > persistedTimestamp).toBe(true);
+                });
+                it("is >= modified timestamp", async () => {
+                    await objectAPI.save(mockDomainObject);
+                    expect(mockDomainObject.persisted >= mockDomainObject.modified).toBe(true);
+                });
+            });
+            describe("the persisted timestamp for new objects", () => {
+                it("is updated", async () => {
+                    await objectAPI.save(mockDomainObject);
+                    expect(mockDomainObject.persisted).toBeDefined();
+                });
+                it("is >= modified timestamp", async () => {
+                    await objectAPI.save(mockDomainObject);
+                    expect(mockDomainObject.persisted >= mockDomainObject.modified).toBe(true);
+                });
+            });
+
             it("Sets the current user for 'createdBy' on new objects", async () => {
                 await objectAPI.save(mockDomainObject);
                 expect(mockDomainObject.createdBy).toBe(USERNAME);

src/api/overlays/Overlay.js

@@ -17,6 +17,7 @@ class Overlay extends EventEmitter {
         dismissable = true,
         element,
         onDestroy,
+        onDismiss,
         size
     } = {}) {
         super();
@@ -32,7 +33,7 @@ class Overlay extends EventEmitter {
                 OverlayComponent: OverlayComponent
             },
             provide: {
-                dismiss: this.dismiss.bind(this),
+                dismiss: this.notifyAndDismiss.bind(this),
                 element,
                 buttons,
                 dismissable: this.dismissable
@@ -43,6 +44,10 @@ class Overlay extends EventEmitter {
         if (onDestroy) {
             this.once('destroy', onDestroy);
         }
+
+        if (onDismiss) {
+            this.once('dismiss', onDismiss);
+        }
     }
 
     dismiss() {
@@ -51,6 +56,12 @@ class Overlay extends EventEmitter {
         this.component.$destroy();
     }
 
+    //Ensures that any callers are notified that the overlay is dismissed
+    notifyAndDismiss() {
+        this.emit('dismiss');
+        this.dismiss();
+    }
+
     /**
      * @private
      **/

src/api/overlays/OverlayAPI.js

@@ -55,7 +55,7 @@ class OverlayAPI {
     dismissLastOverlay() {
         let lastOverlay = this.activeOverlays[this.activeOverlays.length - 1];
         if (lastOverlay && lastOverlay.dismissable) {
-            lastOverlay.dismiss();
+            lastOverlay.notifyAndDismiss();
         }
     }
 

src/api/overlays/components/OverlayComponent.vue

@@ -15,6 +15,8 @@
             ref="element"
             class="c-overlay__contents js-notebook-snapshot-item-wrapper"
             tabindex="0"
+            aria-modal="true"
+            role="dialog"
         ></div>
         <div
             v-if="buttons"

src/api/telemetry/TelemetryAPI.js

@@ -36,6 +36,7 @@ export default class TelemetryAPI {
         this.formatMapCache = new WeakMap();
         this.formatters = new Map();
         this.limitProviders = [];
+        this.stalenessProviders = [];
         this.metadataCache = new WeakMap();
         this.metadataProviders = [new DefaultMetadataProvider(this.openmct)];
         this.noRequestProviderForAllObjects = false;
@@ -114,6 +115,10 @@ export default class TelemetryAPI {
         if (provider.supportsLimits) {
             this.limitProviders.unshift(provider);
         }
+
+        if (provider.supportsStaleness) {
+            this.stalenessProviders.unshift(provider);
+        }
     }
 
     /**
@@ -125,7 +130,7 @@ export default class TelemetryAPI {
             return provider.supportsSubscribe.apply(provider, args);
         }
 
-        return this.subscriptionProviders.filter(supportsDomainObject)[0];
+        return this.subscriptionProviders.find(supportsDomainObject);
     }
 
     /**
@@ -138,25 +143,25 @@ export default class TelemetryAPI {
             return provider.supportsRequest.apply(provider, args);
         }
 
-        return this.requestProviders.filter(supportsDomainObject)[0];
+        return this.requestProviders.find(supportsDomainObject);
     }
 
     /**
      * @private
      */
     #findMetadataProvider(domainObject) {
-        return this.metadataProviders.filter(function (p) {
-            return p.supportsMetadata(domainObject);
-        })[0];
+        return this.metadataProviders.find((provider) => {
+            return provider.supportsMetadata(domainObject);
+        });
     }
 
     /**
      * @private
      */
     #findLimitEvaluator(domainObject) {
-        return this.limitProviders.filter(function (p) {
-            return p.supportsLimits(domainObject);
-        })[0];
+        return this.limitProviders.find((provider) => {
+            return provider.supportsLimits(domainObject);
+        });
     }
 
     /**
@@ -351,6 +356,101 @@ export default class TelemetryAPI {
         }.bind(this);
     }
 
+    /**
+     * Subscribe to staleness updates for a specific domain object.
+     * The callback will be called whenever staleness changes.
+     *
+     * @method subscribeToStaleness
+     * @memberof module:openmct.TelemetryAPI~StalenessProvider#
+     * @param {module:openmct.DomainObject} domainObject the object
+     *          to watch for staleness updates
+     * @param {Function} callback the callback to invoke with staleness data,
+     *  as it is received: ex.
+     *  {
+     *      isStale: <Boolean>,
+     *      timestamp: <timestamp>
+     *  }
+     * @returns {Function} a function which may be called to terminate
+     *          the subscription to staleness updates
+     */
+    subscribeToStaleness(domainObject, callback) {
+        const provider = this.#findStalenessProvider(domainObject);
+
+        if (!this.stalenessSubscriberCache) {
+            this.stalenessSubscriberCache = {};
+        }
+
+        const keyString = objectUtils.makeKeyString(domainObject.identifier);
+        let stalenessSubscriber = this.stalenessSubscriberCache[keyString];
+
+        if (!stalenessSubscriber) {
+            stalenessSubscriber = this.stalenessSubscriberCache[keyString] = {
+                callbacks: [callback]
+            };
+            if (provider) {
+                stalenessSubscriber.unsubscribe = provider
+                    .subscribeToStaleness(domainObject, (stalenessResponse) => {
+                        stalenessSubscriber.callbacks.forEach((cb) => {
+                            cb(stalenessResponse);
+                        });
+                    });
+            } else {
+                stalenessSubscriber.unsubscribe = () => {};
+            }
+        } else {
+            stalenessSubscriber.callbacks.push(callback);
+        }
+
+        return function unsubscribe() {
+            stalenessSubscriber.callbacks = stalenessSubscriber.callbacks.filter((cb) => {
+                return cb !== callback;
+            });
+            if (stalenessSubscriber.callbacks.length === 0) {
+                stalenessSubscriber.unsubscribe();
+                delete this.stalenessSubscriberCache[keyString];
+            }
+        }.bind(this);
+    }
+
+    /**
+     * Request telemetry staleness for a domain object.
+     *
+     * @method isStale
+     * @memberof module:openmct.TelemetryAPI~StalenessProvider#
+     * @param {module:openmct.DomainObject} domainObject the object
+     *        which has associated telemetry staleness
+     * @returns {Promise.<StalenessResponseObject>} a promise for a StalenessResponseObject
+     *        or undefined if no provider exists
+     */
+    async isStale(domainObject) {
+        const provider = this.#findStalenessProvider(domainObject);
+
+        if (!provider) {
+            return;
+        }
+
+        const abortController = new AbortController();
+        const options = { signal: abortController.signal };
+        this.requestAbortControllers.add(abortController);
+
+        try {
+            const staleness = await provider.isStale(domainObject, options);
+
+            return staleness;
+        } finally {
+            this.requestAbortControllers.delete(abortController);
+        }
+    }
+
+    /**
+     * @private
+     */
+    #findStalenessProvider(domainObject) {
+        return this.stalenessProviders.find((provider) => {
+            return provider.supportsStaleness(domainObject);
+        });
+    }
+
     /**
      * Get telemetry metadata for a given domain object.  Returns a telemetry
      * metadata manager which provides methods for interrogating telemetry
@@ -661,6 +761,29 @@ export default class TelemetryAPI {
  * @memberof module:openmct.TelemetryAPI~
  */
 
+/**
+ * Provides telemetry staleness data. To subscribe to telemetry stalenes,
+ * new StalenessProvider implementations should be
+ * [registered]{@link module:openmct.TelemetryAPI#addProvider}.
+ *
+ * @interface StalenessProvider
+ * @property {function} supportsStaleness receieves a domainObject and
+ *           returns a boolean to indicate it will provide staleness
+ * @property {function} subscribeToStaleness receieves a domainObject to
+ *           be subscribed to and a callback to invoke with a StalenessResponseObject
+ * @property {function} isStale an asynchronous method called with a domainObject
+ *           and an options object which currently has an abort signal, ex.
+ *           { signal: <AbortController.signal> }
+ *           this method should return a current StalenessResponseObject
+ * @memberof module:openmct.TelemetryAPI~
+ */
+
+/**
+ * @typedef {object} StalenessResponseObject
+ * @property {Boolean} isStale boolean representing the staleness state
+ * @property {Number} timestamp Unix timestamp in milliseconds
+ */
+
 /**
  * An interface for retrieving telemetry data associated with a domain
  * object.

src/api/time/IndependentTimeContext.js

@@ -202,8 +202,13 @@ class IndependentTimeContext extends TimeContext {
     }
 
     getUpstreamContext() {
-        let timeContext = this.globalTimeContext;
+        const objectKey = this.openmct.objects.makeKeyString(this.objectPath[this.objectPath.length - 1].identifier);
+        const doesObjectHaveTimeContext = this.globalTimeContext.independentContexts.get(objectKey);
+        if (doesObjectHaveTimeContext) {
+            return undefined;
+        }
 
+        let timeContext = this.globalTimeContext;
         this.objectPath.some((item, index) => {
             const key = this.openmct.objects.makeKeyString(item.identifier);
             //last index is the view object itself

src/api/user/StatusAPI.js

@@ -291,5 +291,6 @@ export default class StatusAPI extends EventEmitter {
  * The Status type
  * @typedef {Object} Status
  * @property {String} key - A unique identifier for this status
- * @property {Number} label - A human readable label for this status
+ * @property {String} label - A human readable label for this status
+ * @property {Number} timestamp - The time that the status was set.
  */

src/plugins/LADTable/components/LADRow.vue

@@ -29,7 +29,7 @@
     <td class="js-second-data">{{ formattedTimestamp }}</td>
     <td
         class="js-third-data"
-        :class="valueClass"
+        :class="valueClasses"
     >{{ value }}</td>
     <td
         v-if="hasUnits"
@@ -63,6 +63,12 @@ export default {
         hasUnits: {
             type: Boolean,
             requred: true
+        },
+        isStale: {
+            type: Boolean,
+            default() {
+                return false;
+            }
         }
     },
     data() {
@@ -81,14 +87,22 @@ export default {
 
             return this.formats[this.valueKey].format(this.datum);
         },
-        valueClass() {
-            if (!this.datum) {
-                return '';
+        valueClasses() {
+            let classes = [];
+
+            if (this.isStale) {
+                classes.push('is-stale');
             }
 
-            const limit = this.limitEvaluator.evaluate(this.datum, this.valueMetadata);
+            if (this.datum) {
+                const limit = this.limitEvaluator.evaluate(this.datum, this.valueMetadata);
 
-            return limit ? limit.cssClass : '';
+                if (limit) {
+                    classes.push(limit.cssClass);
+                }
+            }
+
+            return classes;
 
         },
         formattedTimestamp() {

src/plugins/LADTable/components/LADTable.vue

@@ -21,7 +21,10 @@
  *****************************************************************************/
 
 <template>
-<div class="c-lad-table-wrapper u-style-receiver js-style-receiver">
+<div
+    class="c-lad-table-wrapper u-style-receiver js-style-receiver"
+    :class="staleClass"
+>
     <table class="c-table c-lad-table">
         <thead>
             <tr>
@@ -38,6 +41,7 @@
                 :domain-object="ladRow.domainObject"
                 :path-to-table="objectPath"
                 :has-units="hasUnits"
+                :is-stale="staleObjects.includes(ladRow.key)"
                 @rowContextClick="updateViewContext"
             />
         </tbody>
@@ -46,7 +50,9 @@
 </template>
 
 <script>
+
 import LadRow from './LADRow.vue';
+import StalenessUtils from '@/utils/staleness';
 
 export default {
     components: {
@@ -66,7 +72,8 @@ export default {
     data() {
         return {
             items: [],
-            viewContext: {}
+            viewContext: {},
+            staleObjects: []
         };
     },
     computed: {
@@ -80,6 +87,13 @@ export default {
             });
 
             return itemsWithUnits.length !== 0;
+        },
+        staleClass() {
+            if (this.staleObjects.length !== 0) {
+                return 'is-stale';
+            }
+
+            return '';
         }
     },
     mounted() {
@@ -88,11 +102,17 @@ export default {
         this.composition.on('remove', this.removeItem);
         this.composition.on('reorder', this.reorder);
         this.composition.load();
+        this.stalenessSubscription = {};
     },
     destroyed() {
         this.composition.off('add', this.addItem);
         this.composition.off('remove', this.removeItem);
         this.composition.off('reorder', this.reorder);
+
+        Object.values(this.stalenessSubscription).forEach(stalenessSubscription => {
+            stalenessSubscription.unsubscribe();
+            stalenessSubscription.stalenessUtils.destroy();
+        });
     },
     methods: {
         addItem(domainObject) {
@@ -101,23 +121,55 @@ export default {
             item.key = this.openmct.objects.makeKeyString(domainObject.identifier);
 
             this.items.push(item);
+
+            this.stalenessSubscription[item.key] = {};
+            this.stalenessSubscription[item.key].stalenessUtils = new StalenessUtils(this.openmct, domainObject);
+            this.openmct.telemetry.isStale(domainObject).then((stalenessResponse) => {
+                if (stalenessResponse !== undefined) {
+                    this.handleStaleness(item.key, stalenessResponse);
+                }
+            });
+            const stalenessSubscription = this.openmct.telemetry.subscribeToStaleness(domainObject, (stalenessResponse) => {
+                this.handleStaleness(item.key, stalenessResponse);
+            });
+
+            this.stalenessSubscription[item.key].unsubscribe = stalenessSubscription;
         },
         removeItem(identifier) {
-            let index = this.items.findIndex(item => this.openmct.objects.makeKeyString(identifier) === item.key);
+            const SKIP_CHECK = true;
+            const keystring = this.openmct.objects.makeKeyString(identifier);
+            const index = this.items.findIndex(item => keystring === item.key);
 
             this.items.splice(index, 1);
+
+            this.stalenessSubscription[keystring].unsubscribe();
+            this.handleStaleness(keystring, { isStale: false }, SKIP_CHECK);
         },
         reorder(reorderPlan) {
-            let oldItems = this.items.slice();
+            const oldItems = this.items.slice();
             reorderPlan.forEach((reorderEvent) => {
                 this.$set(this.items, reorderEvent.newIndex, oldItems[reorderEvent.oldIndex]);
             });
         },
         metadataHasUnits(valueMetadatas) {
-            let metadataWithUnits = valueMetadatas.filter(metadatum => metadatum.unit);
+            const metadataWithUnits = valueMetadatas.filter(metadatum => metadatum.unit);
 
             return metadataWithUnits.length > 0;
         },
+        handleStaleness(id, stalenessResponse, skipCheck = false) {
+            if (skipCheck || this.stalenessSubscription[id].stalenessUtils.shouldUpdateStaleness(stalenessResponse)) {
+                const index = this.staleObjects.indexOf(id);
+                if (stalenessResponse.isStale) {
+                    if (index === -1) {
+                        this.staleObjects.push(id);
+                    }
+                } else {
+                    if (index !== -1) {
+                        this.staleObjects.splice(index, 1);
+                    }
+                }
+            }
+        },
         updateViewContext(rowContext) {
             this.viewContext.row = rowContext;
         },

src/plugins/LADTable/components/LadTableSet.vue

@@ -21,42 +21,50 @@
  *****************************************************************************/
 
 <template>
-<table class="c-table c-lad-table">
-    <thead>
-        <tr>
-            <th>Name</th>
-            <th>Timestamp</th>
-            <th>Value</th>
-            <th v-if="hasUnits">Unit</th>
-        </tr>
-    </thead>
-    <tbody>
-        <template
-            v-for="ladTable in ladTableObjects"
-        >
-            <tr
-                :key="ladTable.key"
-                class="c-table__group-header js-lad-table-set__table-headers"
-            >
-                <td colspan="10">
-                    {{ ladTable.domainObject.name }}
-                </td>
+<div
+    class="c-lad-table-wrapper u-style-receiver js-style-receiver"
+    :class="staleClass"
+>
+    <table class="c-table c-lad-table">
+        <thead>
+            <tr>
+                <th>Name</th>
+                <th>Timestamp</th>
+                <th>Value</th>
+                <th v-if="hasUnits">Unit</th>
             </tr>
-            <lad-row
-                v-for="ladRow in ladTelemetryObjects[ladTable.key]"
-                :key="ladRow.key"
-                :domain-object="ladRow.domainObject"
-                :path-to-table="ladTable.objectPath"
-                :has-units="hasUnits"
-                @rowContextClick="updateViewContext"
-            />
-        </template>
-    </tbody>
-</table>
+        </thead>
+        <tbody>
+            <template
+                v-for="ladTable in ladTableObjects"
+            >
+                <tr
+                    :key="ladTable.key"
+                    class="c-table__group-header js-lad-table-set__table-headers"
+                >
+                    <td colspan="10">
+                        {{ ladTable.domainObject.name }}
+                    </td>
+                </tr>
+                <lad-row
+                    v-for="ladRow in ladTelemetryObjects[ladTable.key]"
+                    :key="ladRow.key"
+                    :domain-object="ladRow.domainObject"
+                    :path-to-table="ladTable.objectPath"
+                    :has-units="hasUnits"
+                    :is-stale="staleObjects.includes(ladRow.key)"
+                    @rowContextClick="updateViewContext"
+                />
+            </template>
+        </tbody>
+    </table>
+</div>
 </template>
 
 <script>
+
 import LadRow from './LADRow.vue';
+import StalenessUtils from '@/utils/staleness';
 
 export default {
     components: {
@@ -74,7 +82,8 @@ export default {
             ladTableObjects: [],
             ladTelemetryObjects: {},
             compositions: [],
-            viewContext: {}
+            viewContext: {},
+            staleObjects: []
         };
     },
     computed: {
@@ -95,6 +104,13 @@ export default {
             }
 
             return false;
+        },
+        staleClass() {
+            if (this.staleObjects.length !== 0) {
+                return 'is-stale';
+            }
+
+            return '';
         }
     },
     mounted() {
@@ -103,6 +119,8 @@ export default {
         this.composition.on('remove', this.removeLadTable);
         this.composition.on('reorder', this.reorderLadTables);
         this.composition.load();
+
+        this.stalenessSubscription = {};
     },
     destroyed() {
         this.composition.off('add', this.addLadTable);
@@ -112,6 +130,11 @@ export default {
             c.composition.off('add', c.addCallback);
             c.composition.off('remove', c.removeCallback);
         });
+
+        Object.values(this.stalenessSubscription).forEach(stalenessSubscription => {
+            stalenessSubscription.unsubscribe();
+            stalenessSubscription.stalenessUtils.destroy();
+        });
     },
     methods: {
         addLadTable(domainObject) {
@@ -160,18 +183,57 @@ export default {
                 telemetryObjects.push(telemetryObject);
 
                 this.$set(this.ladTelemetryObjects, ladTable.key, telemetryObjects);
+
+                // if tracking already, possibly in another table, return
+                if (this.stalenessSubscription[telemetryObject.key]) {
+                    return;
+                } else {
+                    this.stalenessSubscription[telemetryObject.key] = {};
+                    this.stalenessSubscription[telemetryObject.key].stalenessUtils = new StalenessUtils(this.openmct, domainObject);
+                }
+
+                this.openmct.telemetry.isStale(domainObject).then((stalenessResponse) => {
+                    if (stalenessResponse !== undefined) {
+                        this.handleStaleness(telemetryObject.key, stalenessResponse);
+                    }
+                });
+                const stalenessSubscription = this.openmct.telemetry.subscribeToStaleness(domainObject, (stalenessResponse) => {
+                    this.handleStaleness(telemetryObject.key, stalenessResponse);
+                });
+
+                this.stalenessSubscription[telemetryObject.key].unsubscribe = stalenessSubscription;
             };
         },
         removeTelemetryObject(ladTable) {
             return (identifier) => {
+                const SKIP_CHECK = true;
+                const keystring = this.openmct.objects.makeKeyString(identifier);
                 let telemetryObjects = this.ladTelemetryObjects[ladTable.key];
-                let index = telemetryObjects.findIndex(telemetryObject => this.openmct.objects.makeKeyString(identifier) === telemetryObject.key);
+                let index = telemetryObjects.findIndex(telemetryObject => keystring === telemetryObject.key);
 
                 telemetryObjects.splice(index, 1);
 
                 this.$set(this.ladTelemetryObjects, ladTable.key, telemetryObjects);
+
+                this.stalenessSubscription[keystring].unsubscribe();
+                this.stalenessSubscription[keystring].stalenessUtils.destroy();
+                this.handleStaleness(keystring, { isStale: false }, SKIP_CHECK);
             };
         },
+        handleStaleness(id, stalenessResponse, skipCheck = false) {
+            if (skipCheck || this.stalenessSubscription[id].stalenessUtils.shouldUpdateStaleness(stalenessResponse)) {
+                const index = this.staleObjects.indexOf(id);
+                if (stalenessResponse.isStale) {
+                    if (index === -1) {
+                        this.staleObjects.push(id);
+                    }
+                } else {
+                    if (index !== -1) {
+                        this.staleObjects.splice(index, 1);
+                    }
+                }
+            }
+        },
         updateViewContext(rowContext) {
             this.viewContext.row = rowContext;
         },

src/plugins/charts/scatter/ScatterPlotView.vue

@@ -112,11 +112,7 @@ export default {
             }
         },
         removeFromComposition(telemetryObject) {
-            let composition = this.domainObject.composition.filter(id =>
-                !this.openmct.objects.areIdsEqual(id, telemetryObject.identifier)
-            );
-
-            this.openmct.objects.mutate(this.domainObject, 'composition', composition);
+            this.composition.remove(telemetryObject);
         },
         addTelemetryObject(telemetryObject) {
             // grab information we need from the added telmetry object

src/plugins/charts/scatter/inspector/PlotOptionsBrowse.vue

@@ -104,10 +104,14 @@ export default {
             this.$set(this.plotSeries, this.plotSeries.length, series);
             this.setAxesLabels();
         },
-        removeSeries(series) {
-            const index = this.plotSeries.findIndex(plotSeries => this.openmct.objects.areIdsEqual(series.identifier, plotSeries.identifier));
-            if (index !== undefined) {
-                this.$delete(this.plotSeries, index);
+        removeSeries(seriesKey) {
+            const seriesIndex = this.plotSeries.findIndex(
+                plotSeries => this.openmct.objects.areIdsEqual(seriesKey, plotSeries.identifier)
+            );
+
+            const foundSeries = seriesIndex > -1;
+            if (foundSeries) {
+                this.$delete(this.plotSeries, seriesIndex);
                 this.setAxesLabels();
             }
         },

src/plugins/clock/plugin.js

@@ -68,6 +68,7 @@ export default function ClockPlugin(options) {
                     ]
                 },
                 {
+                    ariaLabel: "12 or 24 hour clock",
                     control: 'select',
                     options: [
                         {

src/plugins/condition/Condition.js

@@ -26,7 +26,7 @@ import TelemetryCriterion from "./criterion/TelemetryCriterion";
 import { evaluateResults } from './utils/evaluator';
 import { getLatestTimestamp } from './utils/time';
 import AllTelemetryCriterion from "./criterion/AllTelemetryCriterion";
-import {TRIGGER_CONJUNCTION, TRIGGER_LABEL} from "./utils/constants";
+import { TRIGGER_CONJUNCTION, TRIGGER_LABEL } from "./utils/constants";
 
 /*
 * conditionConfiguration = {
@@ -160,7 +160,8 @@ export default class Condition extends EventEmitter {
         }
 
         criterion.on('criterionUpdated', (obj) => this.handleCriterionUpdated(obj));
-        criterion.on('telemetryIsStale', (obj) => this.handleStaleCriterion(obj));
+        criterion.on('telemetryIsOld', (obj) => this.handleOldTelemetryCriterion(obj));
+        criterion.on('telemetryStaleness', () => this.handleTelemetryStaleness());
         if (!this.criteria) {
             this.criteria = [];
         }
@@ -191,12 +192,14 @@ export default class Condition extends EventEmitter {
             const newCriterionConfiguration = this.generateCriterion(criterionConfiguration);
             let newCriterion = new TelemetryCriterion(newCriterionConfiguration, this.openmct);
             newCriterion.on('criterionUpdated', (obj) => this.handleCriterionUpdated(obj));
-            newCriterion.on('telemetryIsStale', (obj) => this.handleStaleCriterion(obj));
+            newCriterion.on('telemetryIsOld', (obj) => this.handleOldTelemetryCriterion(obj));
+            newCriterion.on('telemetryStaleness', () => this.handleTelemetryStaleness());
 
             let criterion = found.item;
             criterion.unsubscribe();
             criterion.off('criterionUpdated', (obj) => this.handleCriterionUpdated(obj));
-            criterion.off('telemetryIsStale', (obj) => this.handleStaleCriterion(obj));
+            criterion.off('telemetryIsOld', (obj) => this.handleOldTelemetryCriterion(obj));
+            newCriterion.off('telemetryStaleness', () => this.handleTelemetryStaleness());
             this.criteria.splice(found.index, 1, newCriterion);
         }
     }
@@ -205,12 +208,9 @@ export default class Condition extends EventEmitter {
         let found = this.findCriterion(id);
         if (found) {
             let criterion = found.item;
-            criterion.off('criterionUpdated', (obj) => {
-                this.handleCriterionUpdated(obj);
-            });
-            criterion.off('telemetryIsStale', (obj) => {
-                this.handleStaleCriterion(obj);
-            });
+            criterion.off('criterionUpdated', (obj) => this.handleCriterionUpdated(obj));
+            criterion.off('telemetryIsOld', (obj) => this.handleOldTelemetryCriterion(obj));
+            criterion.off('telemetryStaleness', () => this.handleTelemetryStaleness());
             criterion.destroy();
             this.criteria.splice(found.index, 1);
 
@@ -227,7 +227,7 @@ export default class Condition extends EventEmitter {
         }
     }
 
-    handleStaleCriterion(updatedCriterion) {
+    handleOldTelemetryCriterion(updatedCriterion) {
         this.result = evaluateResults(this.criteria.map(criterion => criterion.result), this.trigger);
         let latestTimestamp = {};
         latestTimestamp = getLatestTimestamp(
@@ -239,6 +239,11 @@ export default class Condition extends EventEmitter {
         this.conditionManager.updateCurrentCondition(latestTimestamp);
     }
 
+    handleTelemetryStaleness() {
+        this.result = evaluateResults(this.criteria.map(criterion => criterion.result), this.trigger);
+        this.conditionManager.updateCurrentCondition();
+    }
+
     updateDescription() {
         const triggerDescription = this.getTriggerDescription();
         let description = '';

src/plugins/condition/components/ConditionCollection.vue

@@ -82,8 +82,10 @@
 </template>
 
 <script>
+
 import Condition from './Condition.vue';
 import ConditionManager from '../ConditionManager';
+import StalenessUtils from '@/utils/staleness';
 
 export default {
     components: {
@@ -139,6 +141,13 @@ export default {
         if (this.stopObservingForChanges) {
             this.stopObservingForChanges();
         }
+
+        if (this.stalenessSubscription) {
+            Object.values(this.stalenessSubscription).forEach(stalenessSubscription => {
+                stalenessSubscription.unsubscribe();
+                stalenessSubscription.stalenessUtils.destroy();
+            });
+        }
     },
     mounted() {
         this.composition = this.openmct.composition.get(this.domainObject);
@@ -150,6 +159,7 @@ export default {
         this.conditionManager = new ConditionManager(this.domainObject, this.openmct);
         this.conditionManager.on('conditionSetResultUpdated', this.handleConditionSetResultUpdated);
         this.updateDefaultCondition();
+        this.stalenessSubscription = {};
     },
     methods: {
         handleConditionSetResultUpdated(data) {
@@ -210,19 +220,57 @@ export default {
             return arr;
         },
         addTelemetryObject(domainObject) {
+            const keyString = this.openmct.objects.makeKeyString(domainObject.identifier);
+
             this.telemetryObjs.push(domainObject);
             this.$emit('telemetryUpdated', this.telemetryObjs);
+
+            if (!this.stalenessSubscription[keyString]) {
+                this.stalenessSubscription[keyString] = {};
+            }
+
+            this.stalenessSubscription[keyString].stalenessUtils = new StalenessUtils(this.openmct, domainObject);
+
+            this.openmct.telemetry.isStale(domainObject).then((stalenessResponse) => {
+                this.hanldeStaleness(keyString, stalenessResponse);
+            });
+            const stalenessSubscription = this.openmct.telemetry.subscribeToStaleness(domainObject, (stalenessResponse) => {
+                this.hanldeStaleness(keyString, stalenessResponse);
+            });
+
+            this.stalenessSubscription[keyString].unsubscribe = stalenessSubscription;
         },
         removeTelemetryObject(identifier) {
-            let index = this.telemetryObjs.findIndex(obj => {
+            const keyString = this.openmct.objects.makeKeyString(identifier);
+            const index = this.telemetryObjs.findIndex(obj => {
                 let objId = this.openmct.objects.makeKeyString(obj.identifier);
-                let id = this.openmct.objects.makeKeyString(identifier);
 
-                return objId === id;
+                return objId === keyString;
             });
+
             if (index > -1) {
                 this.telemetryObjs.splice(index, 1);
             }
+
+            if (this.stalenessSubscription[keyString]) {
+                this.stalenessSubscription[keyString].unsubscribe();
+                this.stalenessSubscription[keyString].stalenessUtils.destroy();
+                this.emitStaleness({
+                    keyString,
+                    isStale: false
+                });
+            }
+        },
+        hanldeStaleness(keyString, stalenessResponse) {
+            if (this.stalenessSubscription[keyString].stalenessUtils.shouldUpdateStaleness(stalenessResponse)) {
+                this.emitStaleness({
+                    keyString,
+                    isStale: stalenessResponse.isStale
+                });
+            }
+        },
+        emitStaleness(stalenessObject) {
+            this.$emit('telemetryStaleness', stalenessObject);
         },
         addCondition() {
             this.conditionManager.addCondition();