зеркало из https://github.com/mozilla/gecko-dev.git
81 строка
2.5 KiB
XML
81 строка
2.5 KiB
XML
<?xml version="1.0"?>
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<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
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<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=777385
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-->
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<window title="Mozilla Bug 777385"
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xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
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<div></div>
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<div id="mydivname"></div>
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<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
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<!-- test results are displayed in the html:body -->
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<body xmlns="http://www.w3.org/1999/xhtml">
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<a href="https://bugzilla.mozilla.org/show_bug.cgi?id="
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target="_blank">Mozilla Bug 777385</a>
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</body>
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<!-- test code goes here -->
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<script type="application/javascript">
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<![CDATA[
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/** Test for Bug 777385 **/
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let Cu = Components.utils;
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let live_map = new WeakMap;
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let get_div_style = function () {
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return document.getElementById("mydivname").style;
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}
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let make_live_map = function () {
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let my_div_style = get_div_style();
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let div_fail = false;
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try {
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live_map.set(my_div_style, 12345);
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} catch (e) {
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div_fail = true;
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}
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ok(!div_fail, "Using elem.style as a weak map key should not produce an exception.");
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is(live_map.get(get_div_style()), 12345, "Live map should have live style with right value before GC.");
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}
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make_live_map();
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// RGBColor is a non-nsISupports refCounted class using WebIDL bindings.
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// non-nsISupports cycle-collected classes should fail as weak map keys.
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let context = window.getComputedStyle(document.documentElement, null).getPropertyCSSValue("color").getRGBColorValue();
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let contextFail = false;
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try {
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live_map.set(context, 2);
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} catch (e) {
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contextFail = true;
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}
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ok(contextFail, "Cycle collected non-nsISupports classes aren't allowed as weak map keys.");
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/* Set up for running precise GC/CC then check the results. */
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SimpleTest.waitForExplicitFinish();
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Cu.schedulePreciseGC(function () {
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SpecialPowers.DOMWindowUtils.cycleCollect();
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SpecialPowers.DOMWindowUtils.garbageCollect();
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SpecialPowers.DOMWindowUtils.garbageCollect();
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is(Cu.nondeterministicGetWeakMapKeys(live_map).length, 1,
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"Live nsISupports new DOM bindings wrappercached native weak map key should not be removed.");
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is(live_map.get(get_div_style()), 12345, "Live map should have live style with right value after GC.");
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SimpleTest.finish();
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});
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]]>
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</script>
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</window>
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