src/third_party/WebKit/LayoutTests/media/video-playbackrate.html

   1 <!DOCTYPE html>
   2 <html>
   3     <head>
   4         <title>test playbackRate and defaultPlaybackRate</title>
   5         <script src=media-file.js></script>
   6         <script src=video-test.js></script>
   7         <script>
   8             var rateChangeCount = 0;
   9
  10             function ratechange()
  11             {
  12                 consoleWrite("*** checking rates after event");
  13                 switch (++rateChangeCount)
  14                 {
  15                     case 1:
  16                         testExpected("video.playbackRate", 1);
  17                         testExpected("video.defaultPlaybackRate", 2);
  18
  19                         consoleWrite("<br>*** setting playbackRate");
  20                         run("video.playbackRate = 2");
  21                         testExpected("video.playbackRate", 2);
  22                         testExpected("video.defaultPlaybackRate", 2);
  23                         consoleWrite("");
  24                         break;
  25                     case 2:
  26                         testExpected("video.playbackRate", 2);
  27                         testExpected("video.defaultPlaybackRate", 2);
  28
  29                         consoleWrite("<br>*** beginning playback");
  30                         video.currentTime = video.duration - 0.2;
  31                         run("video.playbackRate = 1");
  32                         testExpected("video.playbackRate", 1);
  33                         testExpected("video.defaultPlaybackRate", 2);
  34                         run("video.play()");
  35                         consoleWrite("");
  36                         break;
  37                     case 3:
  38                         testExpected("video.playbackRate", 1);
  39                         testExpected("video.defaultPlaybackRate", 2);
  40                         consoleWrite("");
  41                         break;
  42                     default:
  43                         break;
  44                 }
  45             }
  46
  47             function canplaythrough()
  48             {
  49                 consoleWrite("<br>*** checking defaults");
  50                 testExpected("video.playbackRate", 1);
  51                 testExpected("video.defaultPlaybackRate", 1);
  52
  53                 consoleWrite("<br>*** setting defaultPlaybackRate");
  54                 run("video.defaultPlaybackRate = 2");
  55                 testExpected("video.playbackRate", 1);
  56                 testExpected("video.defaultPlaybackRate", 2);
  57                 consoleWrite("");
  58             }
  59
  60             function ended()
  61             {
  62                 testExpected("video.playbackRate", 1);
  63                 testExpected("video.defaultPlaybackRate", 2);
  64                 consoleWrite("");
  65
  66                 consoleWrite("Test extreme playback rates");
  67                 run("video.defaultPlaybackRate = Number.MIN_VALUE");
  68                 testExpected("video.defaultPlaybackRate", Number.MIN_VALUE);
  69                 consoleWrite("");
  70
  71                 run("video.defaultPlaybackRate = Number.MAX_VALUE");
  72                 testExpected("video.defaultPlaybackRate", Number.MAX_VALUE);
  73                 consoleWrite("");
  74
  75                 run("video.playbackRate = Number.MIN_VALUE");
  76                 testExpected("video.playbackRate", Number.MIN_VALUE);
  77                 consoleWrite("");
  78
  79                 run("video.playbackRate = Number.MAX_VALUE");
  80                 testExpected("video.playbackRate", Number.MAX_VALUE);
  81                 consoleWrite("");
  82                 endTest();
  83             }
  84
  85             function start()
  86             {
  87                 findMediaElement();
  88                 waitForEventOnce('canplaythrough', canplaythrough);
  89                 waitForEvent('ended', ended);
  90                 waitForEvent('ratechange', ratechange);
  91
  92                 consoleWrite("*** setting src");
  93                 setSrcByTagName("video", findMediaFile("video", "content/test"));
  94             }
  95
  96         </script>
  97     </head>
  98
  99     <body onload="start()">
 100
 101         <video controls > </video>
 102         <ol>
 103             <li>'playbackRate' should not change when play() is called.</li>
 104             <li>'playbackRate' and 'defaultPlaybackRate' should always return the last value set.</li>
 105         </ol>
 106     </body>
 107 </html>