<!DOCTYPE html>
<html>
<body>
<script src="../../resources/js-test-pre.js"></script>
<script>
description("Test window.oncuechange EventHandler attribute");

shouldBeNull("window.oncuechange");

var video = document.createElement('video');
var track = video.addTextTrack('subtitles');
var testEvent = new Event('cuechange');
var ran = false;
evalAndLog("window.oncuechange = function() { ran = true; };");

evalAndLog("window.dispatchEvent(testEvent)");
shouldBeTrue("ran");

evalAndLog("window.oncuechange = null");
ran = false;
evalAndLog("track.dispatchEvent(testEvent)");
shouldBeFalse("ran");
</script>
<script src="../../resources/js-test-post.js"></script>
</body>
</html>