1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/tests/mochitest/test_bug509244.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,47 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=509244
1.8 +-->
1.9 +<head>
1.10 + <title>Test for Bug 509244</title>
1.11 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.12 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.13 +</head>
1.14 +<body>
1.15 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=509244">Mozilla Bug 509244</a>
1.16 +<p id="display">A</p>
1.17 +<div id="content" style="display: none">
1.18 +
1.19 +</div>
1.20 +<pre id="test">
1.21 +<script type="application/javascript">
1.22 +
1.23 +/** Test for Bug 509244 **/
1.24 +
1.25 +function flush() { document.documentElement.offsetHeight; }
1.26 +
1.27 +var text = document.getElementById("display");
1.28 +
1.29 +// layout text, caching monospace font
1.30 +text.style.fontFamily = "monospace";
1.31 +flush();
1.32 +// relayout text so that monospace font is no longer used (but cached)
1.33 +text.style.fontFamily = "sans-serif";
1.34 +flush();
1.35 +
1.36 +// flush cache
1.37 +var os = SpecialPowers.Cc["@mozilla.org/observer-service;1"]
1.38 + .getService(SpecialPowers.Ci.nsIObserverService);
1.39 +os.notifyObservers(null, "memory-pressure", "heap-minimize");
1.40 +
1.41 +// reuse font that was flushed from cache
1.42 +text.style.fontFamily = "monospace";
1.43 +flush();
1.44 +
1.45 +ok(true, "not crashed");
1.46 +
1.47 +</script>
1.48 +</pre>
1.49 +</body>
1.50 +</html>
