js/xpconnect/tests/chrome/test_getweakmapkeys.xul@6474c204b198
js/xpconnect/tests/chrome/test_getweakmapkeys.xul
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
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=688277
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"/>
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 688277</a>
15 </body>
17 <!-- test code goes here -->
18 <script type="application/javascript">
19 <![CDATA[
20 /** Test for Bug 688277 **/
22 let Cu = Components.utils;
24 /* Fail gracefully if junk is passed in. */
25 is(Cu.nondeterministicGetWeakMapKeys(11), undefined,
26 "nondeterministicGetWeakMapKeys should return undefined for non-objects");
27 is(Cu.nondeterministicGetWeakMapKeys({}), undefined,
28 "nondeterministicGetWeakMapKeys should return undefined for non-weakmap objects");
29 is(Cu.nondeterministicGetWeakMapKeys(null), undefined,
30 "nondeterministicGetWeakMapKeys should return undefined for null");
32 /* return an empty array for an empty WeakMap */
33 let mempty = WeakMap();
34 is(Cu.nondeterministicGetWeakMapKeys(mempty).length, 0,
35 "nondeterministicGetWeakMapKeys should return empty array for empty weakmap");
37 /* Test freeing/nonfreeing. */
38 let m = WeakMap();
39 let liveKeys = new Array();
41 let add_elements = function () {
42 let k1 = {};
43 m.set(k1, "live1");
44 liveKeys.push(k1);
46 let k2 = {};
47 m.set(k2, "dead1");
49 let k = {};
50 m.set(k, k); /* simple cycle */
51 };
53 add_elements();
55 Cu.schedulePreciseGC(function () {
56 let keys = Cu.nondeterministicGetWeakMapKeys(m);
57 is(liveKeys.length, 1, "Wrong number of live keys.");
58 is(keys.length, 1, "Should have one weak map key.");
59 is(m.get(keys[0]), "live1", "live1 should be live");
60 SimpleTest.finish();
61 });
63 SimpleTest.waitForExplicitFinish();
65 ]]>
66 </script>
67 </window>
