<!DOCTYPE html>
<html>
<head>
<script src="../../resources/js-test-pre.js"></script>
</head>
<body>
<script>
var video = document.createElement('video');

var tracka = document.createElement('track');
video.appendChild(tracka);
var trackb = document.createElement('track');
video.appendChild(trackb);

debug("Adding tracks outside the DOM tree:");
shouldBe("video.textTracks.length", "2");
shouldBe("video.textTracks[0]", "tracka.track");
shouldBe("video.textTracks[1]", "trackb.track");

debug("Inserting the parent video element into the document.");
document.body.appendChild(video);
shouldBe("video.textTracks.length", "2");
shouldBe("video.textTracks[0]", "tracka.track");
shouldBe("video.textTracks[1]", "trackb.track");

debug("Inserting and removing another track in the document.");
var trackc = document.createElement('track');
video.appendChild(trackc);
shouldBe("video.textTracks.length", "3");
shouldBe("video.textTracks[2]", "trackc.track");

trackb.parentNode.removeChild(trackb);
shouldBe("video.textTracks.length", "2");
shouldBe("video.textTracks[0]", "tracka.track");
shouldBe("video.textTracks[1]", "trackc.track");

debug("Removing the video from the document.");
document.body.removeChild(video);
shouldBe("video.textTracks.length", "2");
shouldBe("video.textTracks[0]", "tracka.track");
shouldBe("video.textTracks[1]", "trackc.track");

tracka.parentNode.removeChild(tracka);
shouldBe("video.textTracks.length", "1");
shouldBe("video.textTracks[0]", "trackc.track");

</script>
<script src="../../resources/js-test-post.js"></script>
</body>
</html>