<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1030993
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1030993</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<style>
#display {
background: blue; height: 10px; width: 0; color: black;
transition: width linear 1s, color linear 1s;
}
</style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1030993">Mozilla Bug 1030993</a>
<p id="display"></p>
<pre id="test">
</pre>
<script type="application/javascript">
/** Test for Bug 1030993 **/
function advance_clock(milliseconds) {
SpecialPowers.DOMWindowUtils.advanceTimeAndRefresh(milliseconds);
}
var p = document.getElementById("display");
var cs = getComputedStyle(p, "");
advance_clock(0);
cs.width; // flush
p.style.width = "1000px"; // initiate transition
is(cs.width, "0px", "transition at 0ms"); // flush (and test)
advance_clock(100);
is(cs.width, "100px", "transition at 100ms"); // flush
// restyle *and* trigger new transitions
p.style.color = "blue";
// flush again, at the same timestamp
is(cs.width, "100px", "transition at 100ms, after restyle");
SpecialPowers.DOMWindowUtils.restoreNormalRefresh();
</script>
</body>
</html>