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<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=693527
-->
<window title="Mozilla Bug "
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
<!-- test results are displayed in the html:body -->
<body xmlns="http://www.w3.org/1999/xhtml">
<a href="https://bugzilla.mozilla.org/show_bug.cgi?id="
target="_blank">Mozilla Bug 693527</a>
</body>
<!-- test code goes here -->
<script type="application/javascript">
<![CDATA[
/** Test for Bug 693527 **/
let Cu = Components.utils;
let Ci = Components.interfaces;
/* Create a weak reference, with a single-element weak map. */
let make_weak_ref = function (obj) {
let m = new WeakMap;
m.set(obj, {});
return m;
};
/* Check to see if a weak reference is dead. */
let weak_ref_dead = function (r) {
return ThreadSafeChromeUtils.nondeterministicGetWeakMapKeys(r).length == 0;
}
let make_cycle = function () {
var p = document.createElement("p");
p.children.x = p;
var f = function() { };
p.watch("y", f);
var d = document.createElement("div");
d.appendChild(p);
f.loop = d;
f.bar = {}; // observing f directly makes the leak go away even without the CC somehow
return make_weak_ref(f.bar);
};
var cycle_ref = make_cycle();
/* set up for running precise GC/CC then checking the results */
SimpleTest.waitForExplicitFinish();
Cu.schedulePreciseGC(function () {
window.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.cycleCollect();
window.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.garbageCollect();
window.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.garbageCollect();
ok(weak_ref_dead(cycle_ref), "Garbage gray watchpoint cycle should be collected.");
SimpleTest.finish();
});
]]>
</script>
</window>
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