LayoutTests/media/muted-video-is-playing-audio.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
     <head>
         <script src="../resources/js-test-pre.js"></script>
     </head>
     <body>
         <video src="content/audio-tracks.mp4" controls autoplay loop></video>
         <script src="media-file.js"></script>
         <script src="video-test.js"></script>
         <script>
             description("Testing that muting a video element should result in page's audio playing state to become false");

             jsTestIsAsync = true;

             function testUnmutingVideo()
             {
                 run("video.muted = false");
                 shouldBecomeEqual("window.internals.isPagePlayingAudio()", "true", finishJSTest);
             }

             function testMutingVideo()
             {
                 run("video.muted = true");
                 shouldBecomeEqual("window.internals.isPagePlayingAudio()", "false", testUnmutingVideo);
             }

             shouldBecomeEqual("window.internals.isPagePlayingAudio()", "true", testMutingVideo);
         </script>
         <script src="../resources/js-test-post.js"></script>
     </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<script src="../resources/js-test-pre.js"></script>
	</head>
	<body>
	<video src="content/audio-tracks.mp4" controls autoplay loop></video>
	<script src="media-file.js"></script>
	<script src="video-test.js"></script>
	<script>
	description("Testing that muting a video element should result in page's audio playing state to become false");

	jsTestIsAsync = true;

	function testUnmutingVideo()
	{
	run("video.muted = false");
	shouldBecomeEqual("window.internals.isPagePlayingAudio()", "true", finishJSTest);
	}

	function testMutingVideo()
	{
	run("video.muted = true");
	shouldBecomeEqual("window.internals.isPagePlayingAudio()", "false", testUnmutingVideo);
	}

	shouldBecomeEqual("window.internals.isPagePlayingAudio()", "true", testMutingVideo);
	</script>
	<script src="../resources/js-test-post.js"></script>
	</body>
	</html>