The Tor Browser / file comparison
comparison: js/xpconnect/tests/chrome/test_watchpoints.xul
js/xpconnect/tests/chrome/test_watchpoints.xul
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:96ef68dc0115 |
|---|---|
| 1 <?xml version="1.0"?> | |
| 2 <?xml-stylesheet type="text/css" href="chrome://global/skin"?> | |
| 3 <?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?> | |
| 4 <!-- | |
| 5 https://bugzilla.mozilla.org/show_bug.cgi?id=693527 | |
| 6 --> | |
| 7 <window title="Mozilla Bug " | |
| 8 xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> | |
| 9 <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/> | |
| 10 | |
| 11 <!-- test results are displayed in the html:body --> | |
| 12 <body xmlns="http://www.w3.org/1999/xhtml"> | |
| 13 <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=" | |
| 14 target="_blank">Mozilla Bug 693527</a> | |
| 15 </body> | |
| 16 | |
| 17 <!-- test code goes here --> | |
| 18 <script type="application/javascript"> | |
| 19 <![CDATA[ | |
| 20 /** Test for Bug 693527 **/ | |
| 21 | |
| 22 let Cu = Components.utils; | |
| 23 let Ci = Components.interfaces; | |
| 24 | |
| 25 /* Create a weak reference, with a single-element weak map. */ | |
| 26 let make_weak_ref = function (obj) { | |
| 27 let m = new WeakMap; | |
| 28 m.set(obj, {}); | |
| 29 return m; | |
| 30 }; | |
| 31 | |
| 32 /* Check to see if a weak reference is dead. */ | |
| 33 let weak_ref_dead = function (r) { | |
| 34 return Cu.nondeterministicGetWeakMapKeys(r).length == 0; | |
| 35 } | |
| 36 | |
| 37 | |
| 38 let make_cycle = function () { | |
| 39 var p = document.createElement("p"); | |
| 40 p.children.x = p; | |
| 41 var f = function() { }; | |
| 42 p.watch("y", f); | |
| 43 var d = document.createElement("div"); | |
| 44 d.appendChild(p); | |
| 45 f.loop = d; | |
| 46 f.bar = {}; // observing f directly makes the leak go away even without the CC somehow | |
| 47 return make_weak_ref(f.bar); | |
| 48 }; | |
| 49 | |
| 50 var cycle_ref = make_cycle(); | |
| 51 | |
| 52 | |
| 53 /* set up for running precise GC/CC then checking the results */ | |
| 54 | |
| 55 SimpleTest.waitForExplicitFinish(); | |
| 56 | |
| 57 Cu.schedulePreciseGC(function () { | |
| 58 window.QueryInterface(Ci.nsIInterfaceRequestor) | |
| 59 .getInterface(Ci.nsIDOMWindowUtils) | |
| 60 .cycleCollect(); | |
| 61 window.QueryInterface(Ci.nsIInterfaceRequestor) | |
| 62 .getInterface(Ci.nsIDOMWindowUtils) | |
| 63 .garbageCollect(); | |
| 64 window.QueryInterface(Ci.nsIInterfaceRequestor) | |
| 65 .getInterface(Ci.nsIDOMWindowUtils) | |
| 66 .garbageCollect(); | |
| 67 | |
| 68 ok(weak_ref_dead(cycle_ref), "Garbage gray watchpoint cycle should be collected."); | |
| 69 | |
| 70 SimpleTest.finish(); | |
| 71 }); | |
| 72 | |
| 73 ]]> | |
| 74 </script> | |
| 75 </window> |
