2009-11-02 03:35:20 +00:00
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<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=509244
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-->
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<head>
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<title>Test for Bug 509244</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=509244">Mozilla Bug 509244</a>
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<p id="display">A</p>
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<div id="content" style="display: none">
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</div>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 509244 **/
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function flush() { document.documentElement.offsetHeight; }
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var text = document.getElementById("display");
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// layout text, caching monospace font
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text.style.fontFamily = "monospace";
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flush();
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// relayout text so that monospace font is no longer used (but cached)
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text.style.fontFamily = "sans-serif";
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flush();
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// flush cache
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2013-09-04 16:02:34 +00:00
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var os = SpecialPowers.Cc["@mozilla.org/observer-service;1"]
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.getService(SpecialPowers.Ci.nsIObserverService);
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2009-11-02 03:35:20 +00:00
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os.notifyObservers(null, "memory-pressure", "heap-minimize");
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// reuse font that was flushed from cache
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text.style.fontFamily = "monospace";
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flush();
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ok(true, "not crashed");
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</script>
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</pre>
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</body>
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</html>
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