[Media Router] Custom Controls 4 - Implement details view WebUI

chrome/test/data/webui/media_router/media_router_container_search_tests.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** @fileoverview Suite of tests for media-router-container that focus on
  * the MRPM search feature.
  */
 cr.define('media_router_container_search', function() {
   function registerTests() {
     suite('MediaRouterContainerSearch', function() {
@@ skipping 101 matching lines @@
        * @type {!Array<!media_router.Sink>}
        */
       var fakeSinkListWithPseudoSink = [];
 
       /**
        * Sink returned by search.
        * @type {media_router.Sink}
        */
       var foundSink = null;
 
+      // Mock the browser API.
+      var overrideBrowserApi = function() {

[mark a. foltz, 2017/05/12 00:02:47]

Can this be moved into the common setup code?

[takumif, 2017/05/15 17:13:12]

Done. Figured out that HTMLElement#dispatchEvent does something similar to
Polymer.Base#fire.

+        cr.define('media_router.browserApi', function() {
+          'use strict';
+
+          function onMediaControllerClosed() {
+            container.fire('mock-media-controller-closed');
+          }
+
+          function onMediaControllerAvailable(routeId) {
+            container.fire('mock-media-controller-available',
+                           {routeId: routeId});
+          }
+
+          return {
+            onMediaControllerClosed: onMediaControllerClosed,
+            onMediaControllerAvailable: onMediaControllerAvailable,
+          };
+        });
+      }
+
       /**
        * Example pseudo sink.
        * @type {media_router.Sink}
        */
       var pseudoSink = null;
 
       // Import media_router_container.html before running suite.
       suiteSetup(function() {
         return PolymerTest.importHtml(
             'chrome://media-router/elements/media_router_container/' +
             'media_router_container.html');
       });
 
       setup(function(done) {
         PolymerTest.clearBody();
         // Initialize a media-router-container before each test.
         container = document.createElement('media-router-container');
         document.body.appendChild(container);
+        overrideBrowserApi(container);
 
         // Get common functions and variables.
         var test_base = media_router_container_test_base.init(container);
 
         checkCurrentView = test_base.checkCurrentView;
         fakeSinkList = test_base.fakeSinkList;
 
         pseudoSink = new media_router.Sink(
             'pseudo:test', '', null, 'domain.com',
             media_router.SinkIconType.CAST, undefined,
@@ skipping 297 matching lines @@
             searchState.checkForRealSink(fakeSinkList.concat([foundSink])));
         assertEquals(foundSink.id, searchState.checkForRealSink(fakeSinkList));
       });
     });
   }
 
   return {
     registerTests: registerTests,
   };
 });