LayoutTests/media/video-concurrent-visible-playback.html - WebKit - Git at Google

 <html>
     <head>
         <script src=media-file.js></script>
         <script src=video-test.js></script>
         <script>
             var playCount = 0;
             var playThroughCount = 0;
             var videos = [];

             if (window.internals) {
                 internals.settings.setInvisibleAutoplayNotPermitted(true);
                 internals.setMediaSessionRestrictions('videoaudio', 'ConcurrentPlaybackNotPermitted');
             }

             function playing(evt)
             {
                 if (++playCount === 1)
                 {
                     testExpected("videos[0].paused", true);
                     testExpected("videos[1].paused", false);
                     testExpected("videos[2].paused", true);

                     consoleWrite("");
                     endTestLater();
                 } else
                     failTest('Too many play events.')
             }

             function start()
             {
                 videos = document.getElementsByTagName('video');
                 for (var i = 0; i < videos.length; ++i) {
                     video = videos[i];
                     waitForEventOnceOn(video, 'playing', playing);
                     run('video.src = findMediaFile("video", "content/test")');
                 }
                 consoleWrite("");
             }
         </script>
         <style>
         #one, #three { visibility: hidden; }
         </style>
     </head>

     <body onload="start()">
         <video controls autoplay id="one"></video>
         <video controls autoplay id="two"></video>
         <video controls autoplay id="three"></video>
         <p>Test autoplay when both invisible playback and concurrent playback are not allowed.</p>
     </body>
 </html>
	<html>
	<head>
	<script src=media-file.js></script>
	<script src=video-test.js></script>
	<script>
	var playCount = 0;
	var playThroughCount = 0;
	var videos = [];

	if (window.internals) {
	internals.settings.setInvisibleAutoplayNotPermitted(true);
	internals.setMediaSessionRestrictions('videoaudio', 'ConcurrentPlaybackNotPermitted');
	}

	function playing(evt)
	{
	if (++playCount === 1)
	{
	testExpected("videos[0].paused", true);
	testExpected("videos[1].paused", false);
	testExpected("videos[2].paused", true);

	consoleWrite("");
	endTestLater();
	} else
	failTest('Too many play events.')
	}

	function start()
	{
	videos = document.getElementsByTagName('video');
	for (var i = 0; i < videos.length; ++i) {
	video = videos[i];
	waitForEventOnceOn(video, 'playing', playing);
	run('video.src = findMediaFile("video", "content/test")');
	}
	consoleWrite("");
	}
	</script>
	<style>
	#one, #three { visibility: hidden; }
	</style>
	</head>

	<body onload="start()">
	<video controls autoplay id="one"></video>
	<video controls autoplay id="two"></video>
	<video controls autoplay id="three"></video>
	<p>Test autoplay when both invisible playback and concurrent playback are not allowed.</p>
	</body>
	</html>