LayoutTests/http/tests/media/video-play-stall-seek.html

<video controls></video>
<p>Test that playback can be resumed by seeking backwards after load stalls.</p>
<script src=../../media-resources/media-file.js></script>
<script src=../../media-resources/video-test.js></script>
<script>

    var waitingCount = 0;

    video.addEventListener('waiting', function onWaiting() {
        // Skip the first 'waiting' event because it is fired when we call play() 
        // and there isn't enough media to begin playback immediately.
        if (++waitingCount == 1)
            return;

        consoleWrite("EVENT(waiting)");
        video.removeEventListener('waiting', onWaiting);

        // now that playback has paused to wait for data, seek back and verify that we
        // get a 'canplay' event
        waitForEvent('canplay' , function () {
            testExpected("video.readyState", HTMLMediaElement.HAVE_CURRENT_DATA, ">=");
            setTimeout(1, function() { video.pause(); });
            endTest();
        } );
        testExpected("video.readyState", HTMLMediaElement.HAVE_CURRENT_DATA);
        
        run("video.currentTime = 0.1");
    } );

    // Find a supported media file.
    var mediaFile = findMediaFile("video", "content/test");
    var mimeType = mimeTypeForFile(mediaFile);

    video.src = "http://127.0.0.1:8000/resources/load-and-stall.cgi?name=../../../media/" + mediaFile + "&mimeType=" + mimeType + "&stallAt=100000";
    run("video.play()");
</script>