[Media Router] Assign each route a current cast mode if possible

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

 // Copyright 2015 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 route-details. */
 cr.define('route_details', function() {
   function registerTests() {
     suite('RouteDetails', function() {
       /**
        * Route Details created before each test.
@@ skipping 43 matching lines @@
         assertTrue(details.$['route-information'].hasAttribute('hidden'));
         assertFalse(details.$['custom-controller'].hasAttribute('hidden'));
       };
 
       // Checks whether |expected| and the text in the |elementId| element
       // are equal given an id.
       var checkElementTextWithId = function(expected, elementId) {
         assertEquals(expected, details.$[elementId].innerText);
       };
 
+      /**
+       * Fake sink that corresponds to |fakeRouteOne|.
+       * @type {media_router.Sink}
+       */
+      var fakeSinkOne;
+
       // Import route_details.html before running suite.
       suiteSetup(function() {
         return PolymerTest.importHtml(
             'chrome://media-router/elements/route_details/' +
             'route_details.html');
       });
 
       // Initialize a route-details before each test.
       setup(function(done) {
         PolymerTest.clearBody();
         details = document.createElement('route-details');
         document.body.appendChild(details);
 
         // Initialize routes and sinks.
         fakeRouteOne = new media_router.Route('route id 1', 'sink id 1',
             'Video 1', 1, true, false,
             'chrome-extension://123/custom_view.html');
         fakeRouteTwo = new media_router.Route('route id 2', 'sink id 2',
             'Video 2', 2, false, true);
+        fakeSinkOne = new media_router.Sink(
+            'sink id 1', 'sink 1', 'description', null,
+            media_router.SinkIconType.CAST, media_router.SinkStatus.ACTIVE,
+            2 | 4);
 
         // Allow for the route details to be created and attached.
         setTimeout(done);
       });
 
       // Tests that the cast button is shown under the correct circumstances and
       // that updating |replaceRouteAvailable| updates the cast button
       // visibility.
       test('cast button visibility', function() {
         details.route = fakeRouteTwo;
         checkStartCastButtonIsShown();
 
-        details.availableCastModes = 1;
-        details.replaceRouteAvailable = false;
         details.route = fakeRouteOne;
         checkStartCastButtonIsNotShown();
 
-        details.replaceRouteAvailable = true;
+        details.sink = fakeSinkOne;
+        checkStartCastButtonIsShown();
+
+        // Retrigger observer because it's not necessary for it to watch
+        // |route.currentCastMode| in general.
+        fakeRouteOne.currentCastMode = 2;
+        details.route = null;
+        details.route = fakeRouteOne;
+        checkStartCastButtonIsNotShown();
+
+        // Simulate user changing cast modes to be compatible or incompatible
+        // with the route's sink.
+        details.shownCastModeValue = 4;
+        checkStartCastButtonIsShown();
+
+        details.shownCastModeValue = 1;
+        checkStartCastButtonIsNotShown();
+
+        details.shownCastModeValue = 4;
+        checkStartCastButtonIsShown();
+
+        // Cast button should be hidden while another sink is launching.
+        details.isAnySinkCurrentlyLaunching = true;
+        checkStartCastButtonIsNotShown();
+
+        details.isAnySinkCurrentlyLaunching = false;
         checkStartCastButtonIsShown();
       });
 
       // Tests for 'close-route-click' event firing when the
       // 'close-route-button' button is clicked.
       test('close route button click', function(done) {
         details.addEventListener('close-route', function() {
           done();
         });
         MockInteractions.tap(details.$['close-route-button']);
@@ skipping 27 matching lines @@
         checkSpanText(
             loadTimeData.getString('startCastingButtonText').toUpperCase(),
             'start-casting-to-route-button');
         checkSpanText('', 'route-information');
       });
 
       // Tests when |route| is undefined or set.
       test('route is undefined or set', function() {
         // |route| is initially undefined.
         assertEquals(undefined, details.route);
-        assertEquals(0, details.availableCastModes);
         checkDefaultViewIsShown();
 
         // Set |route|.
         details.route = fakeRouteOne;
         assertEquals(fakeRouteOne, details.route);
         checkSpanText(loadTimeData.getStringF('castingActivityStatus',
             fakeRouteOne.description), 'route-information');
         checkDefaultViewIsShown();
         checkStartCastButtonIsNotShown();
 
         // Set |route| to a different route.
         details.route = fakeRouteTwo;
         assertEquals(fakeRouteTwo, details.route);
         checkSpanText(loadTimeData.getStringF('castingActivityStatus',
             fakeRouteTwo.description), 'route-information');
         checkDefaultViewIsShown();
         checkStartCastButtonIsShown();
       });
 
-      // Tests when |availableCastModes| is undefined or set.
-      test('route available cast modes undefined or set', function() {
-        details.route = fakeRouteOne;
-        assertEquals(0, details.availableCastModes);
-        assertFalse(details.route.canJoin);
-        checkStartCastButtonIsNotShown();
-
-        details.availableCastModes = 1;
-        checkStartCastButtonIsShown();
-
-        details.availableCastModes = 2;
-        checkStartCastButtonIsShown();
-
-        details.availableCastModes = 3;
-        checkStartCastButtonIsShown();
-      });
-
       // Tests when |route| exists, has a custom controller, and it loads.
       test('route has custom controller and loading succeeds', function(done) {
         var loadInvoked = false;
         details.$['custom-controller'].load = function(url) {
           loadInvoked = true;
           assertEquals('chrome-extension://123/custom_view.html', url);
           return Promise.resolve();
         };
 
         details.route = fakeRouteOne;
@@ skipping 19 matching lines @@
           done();
         });
       });
     });
   }
 
   return {
     registerTests: registerTests,
   };
 });