[Representation] Test template prefetcher

platform/representation/src/TemplatePrefetcher.js

@@ -25,10 +25,6 @@ define(
     function () {
         'use strict';
 
-        function concat(a, b) {
-            return a.concat(b);
-        }
-
         /**
          * Loads all templates when the application is started.
          * @param {platform/representation.TemplateLinker} templateLinker
@@ -39,9 +35,15 @@ define(
          */
         function TemplatePrefetcher(templateLinker, extensions) {
             Array.prototype.slice.apply(arguments, [1])
-                .reduce(concat, [])
+                .reduce(function (a, b) {
-                .map(templateLinker.getPath.bind(templateLinker))
+                    return a.concat(b);
-                .forEach(templateLinker.load.bind(templateLinker));
+                }, [])
+                .map(function (ext) {
+                    return templateLinker.getPath(ext);
+                })
+                .forEach(function (path) {
+                    templateLinker.load(path);
+                });
         }
 
         return TemplatePrefetcher;

platform/representation/test/TemplatePrefetcherSpec.js

@@ -0,0 +1,76 @@
+/*****************************************************************************
+ * 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/TemplatePrefetcher"],
+    function (TemplatePrefetcher) {
+        'use strict';
+
+        describe("TemplatePrefetcher", function () {
+            var mockTemplateLinker,
+                testExtensions,
+                testPathPrefix,
+                prefetcher;
+
+            beforeEach(function () {
+                testPathPrefix = "some/path/";
+
+                mockTemplateLinker = jasmine.createSpyObj(
+                    'templateLinker',
+                    [ 'getPath', 'load' ]
+                );
+
+                mockTemplateLinker.getPath.andCallFake(function (ext) {
+                    return testPathPrefix + ext.templateUrl;
+                });
+
+                testExtensions = ['a', 'b', 'c'].map(function (category) {
+                    return ['x', 'y', 'z'].map(function (ext) {
+                        return {
+                            templateUrl: category + '/' + ext + '.html'
+                        };
+                    });
+                });
+
+                prefetcher = new TemplatePrefetcher(
+                    mockTemplateLinker,
+                    testExtensions[0],
+                    testExtensions[1],
+                    testExtensions[2]
+                );
+            });
+
+            it("loads all templates when run", function () {
+                testExtensions.forEach(function (category) {
+                    category.forEach(function (extension) {
+                        expect(mockTemplateLinker.load).toHaveBeenCalledWith(
+                            mockTemplateLinker.getPath(extension)
+                        );
+                    });
+                });
+            });
+
+        });
+    }
+);

platform/representation/test/suite.json

@@ -8,5 +8,6 @@
     "services/DndService",
     "MCTInclude",
     "MCTRepresentation",
-    "TemplateLinker"
+    "TemplateLinker",
+    "TemplatePrefetcher"
 ]