[Media Router] Increment the media's current_time in the WebUI route controller

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

 // Copyright 2017 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-controls. */
 cr.define('route_controls', function() {
   function registerTests() {
     suite('RouteControls', function() {
       /**
        * Route Controls created before each test.
@@ skipping 29 matching lines @@
         assertFalse(isElementShown(elementId));
       };
 
       // Creates an instance of RouteStatus with the given parameters. If a
       // parameter is not set, it defaults to an empty string, zero, or false.
       var createRouteStatus = function(params = {}) {
         return new media_router.RouteStatus(
             params.title ? params.title : '',
             params.status ? params.status : '', !!params.canPlayPause,
             !!params.canMute, !!params.canSetVolume, !!params.canSeek,
+            params.playState ? params.playState :
+                               media_router.PlayState.PLAYING,
             !!params.isPaused, !!params.isMuted,
             params.volume ? params.volume : 0,
             params.duration ? params.duration : 0,
             params.currentTime ? params.currentTime : 0);
       };
 
       // Import route_controls.html before running suite.
       suiteSetup(function() {
         return PolymerTest.importHtml(
             'chrome://media-router/elements/route_controls/' +
@@ skipping 71 matching lines @@
         assertElementShown('route-volume-button');
         assertElementShown('route-volume-slider');
       });
 
       // Tests that the play button sends a command to the browser API.
       test('send play command', function(done) {
         document.addEventListener('mock-play-current-media', function(data) {
           done();
         });
 
-        controls.routeStatus =
-            createRouteStatus({canPlayPause: true, isPaused: true});
+        controls.routeStatus = createRouteStatus(
+            {canPlayPause: true, playState: media_router.PlayState.PAUSED});
         MockInteractions.tap(controls.$$('#route-play-pause-button'));
       });
 
       // Tests that the pause button sends a command to the browser API.
       test('send pause command', function(done) {
         document.addEventListener('mock-pause-current-media', function(data) {
           done();
         });
 
-        controls.routeStatus =
-            createRouteStatus({canPlayPause: true, isPaused: false});
+        controls.routeStatus = createRouteStatus(
+            {canPlayPause: true, playState: media_router.PlayState.PLAYING});
         MockInteractions.tap(controls.$$('#route-play-pause-button'));
       });
 
       // Tests that the mute button sends a command to the browser API.
       test('send mute command', function(done) {
         function waitForMuteEvent(data) {
           // Remove the event listener to avoid interfering with other tests.
           document.removeEventListener(
               'mock-set-current-media-mute', waitForMuteEvent);
           if (data.detail.mute) {
@@ skipping 67 matching lines @@
               }
             });
 
         controls.routeStatus = createRouteStatus({canSetVolume: true});
 
         // In actual usage, the change event gets fired when the user interacts
         // with the slider.
         controls.$$('#route-volume-slider').value = volume;
         controls.$$('#route-volume-slider').fire('change');
       });
+
+      test('increment current time while playing', function(done) {
+        var initialTime = 50;
+        controls.routeStatus = createRouteStatus({
+          canSeek: true,
+          playState: media_router.PlayState.PLAYING,
+          duration: 100,
+          currentTime: initialTime,
+        });
+
+        // Check that the current time has been incremented after a second.
+        setTimeout(function() {
+          controls.routeStatus.playState = media_router.PlayState.PAUSED;
+          var pausedTime = controls.routeStatus.currentTime;
+          assertTrue(pausedTime > initialTime);
+
+          // Check that the current time stayed the same after a second, now
+          // that the media is paused.
+          setTimeout(function() {
+            assertEquals(pausedTime, controls.routeStatus.currentTime);
+            done();
+          }, 1000);
+        }, 1000);
+      });
     });
   }
 
   return {
     registerTests: registerTests,
   };
 });