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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /gfx/tests/mochitest/test_bug509244.html | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | uxp-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/tests/mochitest/test_bug509244.html')
| -rw-r--r-- | gfx/tests/mochitest/test_bug509244.html | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gfx/tests/mochitest/test_bug509244.html b/gfx/tests/mochitest/test_bug509244.html new file mode 100644 index 0000000000..662d024d1b --- /dev/null +++ b/gfx/tests/mochitest/test_bug509244.html @@ -0,0 +1,47 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=509244 +--> +<head> + <title>Test for Bug 509244</title> + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=509244">Mozilla Bug 509244</a> +<p id="display">A</p> +<div id="content" style="display: none"> + +</div> +<pre id="test"> +<script type="application/javascript"> + +/** Test for Bug 509244 **/ + +function flush() { document.documentElement.offsetHeight; } + +var text = document.getElementById("display"); + +// layout text, caching monospace font +text.style.fontFamily = "monospace"; +flush(); +// relayout text so that monospace font is no longer used (but cached) +text.style.fontFamily = "sans-serif"; +flush(); + +// flush cache +var os = SpecialPowers.Cc["@mozilla.org/observer-service;1"] + .getService(SpecialPowers.Ci.nsIObserverService); +os.notifyObservers(null, "memory-pressure", "heap-minimize"); + +// reuse font that was flushed from cache +text.style.fontFamily = "monospace"; +flush(); + +ok(true, "not crashed"); + +</script> +</pre> +</body> +</html> |