The Tor Browser / file comparison
comparison: gfx/tests/mochitest/test_bug509244.html
gfx/tests/mochitest/test_bug509244.html
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:ac818f49f78e |
|---|---|
| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <!-- | |
| 4 https://bugzilla.mozilla.org/show_bug.cgi?id=509244 | |
| 5 --> | |
| 6 <head> | |
| 7 <title>Test for Bug 509244</title> | |
| 8 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> | |
| 9 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> | |
| 10 </head> | |
| 11 <body> | |
| 12 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=509244">Mozilla Bug 509244</a> | |
| 13 <p id="display">A</p> | |
| 14 <div id="content" style="display: none"> | |
| 15 | |
| 16 </div> | |
| 17 <pre id="test"> | |
| 18 <script type="application/javascript"> | |
| 19 | |
| 20 /** Test for Bug 509244 **/ | |
| 21 | |
| 22 function flush() { document.documentElement.offsetHeight; } | |
| 23 | |
| 24 var text = document.getElementById("display"); | |
| 25 | |
| 26 // layout text, caching monospace font | |
| 27 text.style.fontFamily = "monospace"; | |
| 28 flush(); | |
| 29 // relayout text so that monospace font is no longer used (but cached) | |
| 30 text.style.fontFamily = "sans-serif"; | |
| 31 flush(); | |
| 32 | |
| 33 // flush cache | |
| 34 var os = SpecialPowers.Cc["@mozilla.org/observer-service;1"] | |
| 35 .getService(SpecialPowers.Ci.nsIObserverService); | |
| 36 os.notifyObservers(null, "memory-pressure", "heap-minimize"); | |
| 37 | |
| 38 // reuse font that was flushed from cache | |
| 39 text.style.fontFamily = "monospace"; | |
| 40 flush(); | |
| 41 | |
| 42 ok(true, "not crashed"); | |
| 43 | |
| 44 </script> | |
| 45 </pre> | |
| 46 </body> | |
| 47 </html> |
