The Tor Browser / file comparison
comparison: dom/plugins/test/mochitest/test_GCrace.html
dom/plugins/test/mochitest/test_GCrace.html
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:b816efd297fd |
|---|---|
| 1 <head> | |
| 2 <title>GC race with actors on the parent</title> | |
| 3 | |
| 4 <script type="text/javascript" | |
| 5 src="/tests/SimpleTest/SimpleTest.js"></script> | |
| 6 <script type="text/javascript" src="utils.js"></script> | |
| 7 <link rel="stylesheet" type="text/css" | |
| 8 href="/tests/SimpleTest/test.css" /> | |
| 9 <body onload="start()"> | |
| 10 <p id="display"></p> | |
| 11 | |
| 12 <script class="testbody" type="application/javascript"> | |
| 13 SimpleTest.waitForExplicitFinish(); | |
| 14 setTestPluginEnabledState(SpecialPowers.Ci.nsIPluginTag.STATE_ENABLED); | |
| 15 | |
| 16 function start() { | |
| 17 if (!SimpleTest.testPluginIsOOP()) { | |
| 18 ok(true, "Skipping this test when test plugin is not OOP."); | |
| 19 SimpleTest.finish(); | |
| 20 return; | |
| 21 } | |
| 22 else { | |
| 23 if (navigator.platform.startsWith("Win")) { | |
| 24 SimpleTest.expectAssertions(0, 350); | |
| 25 } | |
| 26 | |
| 27 setTimeout(checkGCRace, 1000); | |
| 28 } | |
| 29 } | |
| 30 | |
| 31 var nested = false; | |
| 32 | |
| 33 function cb(f) { | |
| 34 ok(!nested, "Callback shouldn't occur in a nested stack frame"); | |
| 35 try { | |
| 36 f(35); | |
| 37 ok(true, "Callback was called, no crash"); | |
| 38 } | |
| 39 catch (e) { | |
| 40 ok(false, "Exception calling callback object: " + e); | |
| 41 } | |
| 42 SimpleTest.executeSoon(removePlugin); | |
| 43 } | |
| 44 | |
| 45 function removePlugin() { | |
| 46 var p = document.getElementById('p'); | |
| 47 p.parentNode.removeChild(p); | |
| 48 p = null; | |
| 49 SpecialPowers.Cu.forceGC(); | |
| 50 SimpleTest.finish(); | |
| 51 } | |
| 52 | |
| 53 function checkGCRace() { | |
| 54 nested = true; | |
| 55 | |
| 56 // The plugin will hand back a function and immediately sleep. | |
| 57 // We will lose our only reference to the function and force GC, followed | |
| 58 // by calling us with that function object again. We should be able to | |
| 59 // call the function and not crash. | |
| 60 var p = document.getElementById('p'); | |
| 61 var f = p.checkGCRace(cb); | |
| 62 f = null; // 'f' should be collected next GC | |
| 63 | |
| 64 nested = false; | |
| 65 | |
| 66 setTimeout(function() { | |
| 67 SpecialPowers.Cu.forceGC(); | |
| 68 }, 2000); | |
| 69 } | |
| 70 </script> | |
| 71 | |
| 72 <embed id="p" type="application/x-test" wmode="window"></embed> |
