[Add] Test model cache

platform/core/src/models/ModelCacheService.js

@@ -60,7 +60,7 @@ define([], function () {
      * @returns {boolean} true if present; false if not
      */
     ModelCacheService.prototype.has = function (id) {
-        return this.cached[id];
+        return !!this.cached[id];
     };
 
     /**

platform/core/test/models/ModelCacheServiceSpec.js

@@ -0,0 +1,69 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2014-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web 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 Web 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.
+ *****************************************************************************/
+/*global define,Promise,describe,it,expect,beforeEach,waitsFor,jasmine*/
+
+define(['../../src/models/ModelCacheService'], function (ModelCacheService) {
+    'use strict';
+    describe("ModelCacheService", function () {
+        var testIds,
+            testModels,
+            cacheService;
+
+        beforeEach(function () {
+            testIds = [ 'a', 'b', 'c', 'd' ];
+            testModels = testIds.reduce(function (models, id) {
+                models[id] = { someKey: "some value for " + id };
+                return models;
+            }, {});
+            cacheService = new ModelCacheService();
+        });
+
+        describe("when populated with models", function () {
+            beforeEach(function () {
+                testIds.forEach(function (id) {
+                    cacheService.put(id, testModels[id]);
+                });
+            });
+
+            it("indicates that it has these models", function () {
+                testIds.forEach(function (id) {
+                    expect(cacheService.has(id)).toBe(true);
+                });
+            });
+
+            it("provides all of these models", function () {
+                expect(cacheService.all()).toEqual(testModels);
+            });
+
+            it("allows models to be retrieved", function () {
+                testIds.forEach(function (id) {
+                    expect(cacheService.get(id)).toEqual(testModels[id]);
+                });
+            });
+
+            it("allows models to be removed", function () {
+                cacheService.remove('a');
+                expect(cacheService.has('a')).toBe(false);
+            });
+        });
+    });
+});