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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test for Bug 537151</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<style type="text/css">
#display {
transition: margin-left 200ms;
}
</style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=537151">Mozilla Bug 537151</a>
<p id="display">Paragraph</p>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 537151 **/
SimpleTest.waitForExplicitFinish();
SimpleTest.requestFlakyTimeout("untriaged");
var p = document.getElementById("display");
p.addEventListener("transitionend", listener);
var ignored = getComputedStyle(p, "").marginLeft;
p.style.marginLeft = "150px";
var event_count = 0;
function listener(event)
{
++event_count;
setTimeout(finish, 400);
p.style.color = "blue";
}
function finish()
{
is(event_count, 1, "should have gotten only 1 transitionend event");
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>