1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/xpconnect/tests/chrome/test_getweakmapkeys.xul Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,67 @@
1.4 +<?xml version="1.0"?>
1.5 +<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
1.6 +<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
1.7 +<!--
1.8 +https://bugzilla.mozilla.org/show_bug.cgi?id=688277
1.9 +-->
1.10 +<window title="Mozilla Bug "
1.11 + xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
1.12 + <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
1.13 +
1.14 + <!-- test results are displayed in the html:body -->
1.15 + <body xmlns="http://www.w3.org/1999/xhtml">
1.16 + <a href="https://bugzilla.mozilla.org/show_bug.cgi?id="
1.17 + target="_blank">Mozilla Bug 688277</a>
1.18 + </body>
1.19 +
1.20 + <!-- test code goes here -->
1.21 + <script type="application/javascript">
1.22 + <![CDATA[
1.23 + /** Test for Bug 688277 **/
1.24 +
1.25 + let Cu = Components.utils;
1.26 +
1.27 + /* Fail gracefully if junk is passed in. */
1.28 + is(Cu.nondeterministicGetWeakMapKeys(11), undefined,
1.29 + "nondeterministicGetWeakMapKeys should return undefined for non-objects");
1.30 + is(Cu.nondeterministicGetWeakMapKeys({}), undefined,
1.31 + "nondeterministicGetWeakMapKeys should return undefined for non-weakmap objects");
1.32 + is(Cu.nondeterministicGetWeakMapKeys(null), undefined,
1.33 + "nondeterministicGetWeakMapKeys should return undefined for null");
1.34 +
1.35 + /* return an empty array for an empty WeakMap */
1.36 + let mempty = WeakMap();
1.37 + is(Cu.nondeterministicGetWeakMapKeys(mempty).length, 0,
1.38 + "nondeterministicGetWeakMapKeys should return empty array for empty weakmap");
1.39 +
1.40 + /* Test freeing/nonfreeing. */
1.41 + let m = WeakMap();
1.42 + let liveKeys = new Array();
1.43 +
1.44 + let add_elements = function () {
1.45 + let k1 = {};
1.46 + m.set(k1, "live1");
1.47 + liveKeys.push(k1);
1.48 +
1.49 + let k2 = {};
1.50 + m.set(k2, "dead1");
1.51 +
1.52 + let k = {};
1.53 + m.set(k, k); /* simple cycle */
1.54 + };
1.55 +
1.56 + add_elements();
1.57 +
1.58 + Cu.schedulePreciseGC(function () {
1.59 + let keys = Cu.nondeterministicGetWeakMapKeys(m);
1.60 + is(liveKeys.length, 1, "Wrong number of live keys.");
1.61 + is(keys.length, 1, "Should have one weak map key.");
1.62 + is(m.get(keys[0]), "live1", "live1 should be live");
1.63 + SimpleTest.finish();
1.64 + });
1.65 +
1.66 + SimpleTest.waitForExplicitFinish();
1.67 +
1.68 + ]]>
1.69 + </script>
1.70 +</window>
