LayoutTests/media/video-source-media.html

<video>
    <source src=content/error.mpeg media="print">
    <source src=content/error2.mpeg media="screen and (min-device-width: 80000px)">
    <source src=content/test.mp4 media="screen and (min-device-width: 100px)">
</video>
<script src=video-test.js></script>
<script>
waitForEventTestAndEnd('begin', "relativeURL(video.currentSrc) == 'content/test.mp4'");
</script>