Add tests for inspector data pivoting (#7282)

* inspector view needs renderWhenVisible function

* add a default visualization source

* add plugin to exercise data pivotting

* use correct key string

* test skeleton

* add e2e test

---------

Co-authored-by: David Tsay <david.e.tsay@nasa.gov>
Co-authored-by: David Tsay <3614296+davetsay@users.noreply.github.com>

example/dataVisualization/components/ExampleDataVisualizationSource.vue

@@ -0,0 +1,128 @@
+<!--
+ 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.
+-->
+
+<template>
+  <div class="c-table c-list-view c-list-view--selectable">
+    <table class="c-table__body">
+      <thead class="c-table__header">
+        <tr>
+          <th>Name</th>
+          <th>Type</th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr
+          v-for="item in items"
+          :key="item.keyString"
+          class="c-list-item js-folder-child"
+          @click="selectItem(item, $event)"
+        >
+          <td class="c-list-item__name">
+            <a ref="objectLink" class="c-object-label">
+              <div
+                class="c-object-label__type-icon c-list-item__name__type-icon"
+                :class="item.type.cssClass"
+              ></div>
+              <div class="c-object-label__name c-list-item__name__name">{{ item.model.name }}</div>
+            </a>
+          </td>
+          <td class="c-list-item__type">
+            {{ item.type.name }}
+          </td>
+        </tr>
+      </tbody>
+    </table>
+  </div>
+</template>
+
+<script>
+export default {
+  inject: ['openmct', 'domainObject'],
+  data() {
+    return {
+      items: []
+    };
+  },
+  mounted() {
+    this.composition = this.openmct.composition.get(this.domainObject);
+    this.keystring = this.openmct.objects.makeKeyString(this.domainObject.identifier);
+    this.composition.on('add', this.addedTelemetry);
+    this.composition.on('remove', this.removedTelemetry);
+    this.composition.load();
+  },
+  unmounted() {
+    this.composition.off('add', this.addedTelemetry);
+    this.composition.off('remove', this.removedTelemetry);
+  },
+  methods: {
+    selectItem(item, event) {
+      event.stopPropagation();
+      const bounds = this.openmct.time.getBounds();
+      const selection = [
+        {
+          element: this.$el,
+          context: {
+            dataVisualization: {
+              telemetryKeys: [item.objectKeyString],
+              description: {
+                text: item.model.name,
+                icon: item.type.cssClass
+              },
+              dataRanges: [
+                {
+                  bounds
+                }
+              ],
+              loading: false
+            },
+            item: this.domainObject
+          }
+        }
+      ];
+      this.openmct.selection.select(selection, false);
+    },
+    addedTelemetry(child) {
+      const type = this.openmct.types.get(child.type) || {
+        definition: {
+          cssClass: 'icon-object-unknown',
+          name: 'Unknown Type'
+        }
+      };
+      this.items.push({
+        model: child,
+        type: type.definition,
+        isAlias: this.keystring !== child.location,
+        objectPath: [child].concat(this.openmct.router.path),
+        objectKeyString: this.openmct.objects.makeKeyString(child.identifier)
+      });
+    },
+    removedTelemetry(identifier) {
+      this.items = this.items.filter((i) => {
+        return (
+          i.model.identifier.key !== identifier.key ||
+          i.model.identifier.namespace !== identifier.namespace
+        );
+      });
+    }
+  }
+};
+</script>