third_party/WebKit/LayoutTests/media/media-controller-effective-playback-rate.html

   1 <!DOCTYPE html>
   2 <html>
   3     <head>
   4         <title>Test effective playback rate with a MediaController.</title>
   5         <script src="media-file.js"></script>
   6         <script src="video-test.js"></script>
   7         <script>
   8             var start = function()
   9             {
  10                 findMediaElement();
  11                 video.src = findMediaFile("video", "content/test");
  12
  13                 // Set the rate on the media element so playback won't move forward.
  14                 video.playbackRate = 0;
  15
  16                 waitForEventOnce("canplay",canplay);
  17             };
  18
  19             var canplay = function()
  20             {
  21                 video.controller = new MediaController();
  22
  23                 // Verify the controller playback rate is 1. This
  24                 // means the "effective playback rate" is 1 even though
  25                 // the HTMLMediaElement's playbackRate attribute is 0.
  26                 testExpected("video.controller.playbackRate", 1);
  27                 testExpected("video.playbackRate", 0);
  28
  29                 // Wait for the seek initiated by the "bringing up to speed"
  30                 // step to complete.
  31                 waitForEventOnce('seeked', seeked);
  32             };
  33
  34             var seeked = function()
  35             {
  36                 // Initiate playback and verify that time moves forward.
  37                 run("video.play()");
  38                 waitForEventOnce("playing", playing);
  39             };
  40
  41             var playing = function()
  42             {
  43                 waitForEventOnce("timeupdate", timeupdate);
  44             };
  45
  46             var timeupdate = function()
  47             {
  48                 testExpected("video.currentTime", 0, "!=");
  49                 endTest();
  50             };
  51             </script>
  52     </head>
  53     <body onload="start()">
  54         <video></video>
  55     </body>
  56 </html>