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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=393974
-->
<head>
<title>Test for Bug 393974</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=393974">Mozilla Bug 393974</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();
function test()
{
// Create a tree walker with a filter which creates a cycle...
var tw = document.createTreeWalker(document, NodeFilter.SHOW_ALL,
function(n)
{
// force the closure to contain the
// global object, in case a future
// optimization might minimize the
// function's captured environment
if ("foo" + window == "fooPIRATES!")
return NodeFilter.FILTER_ACCEPT;
return NodeFilter.FILTER_REJECT;
});
// That should have been enough to create a leak, but we should do at least
// a couple tests while we're here so that this document doesn't show up as
// having no tests pass *or* fail.
ok(tw.firstChild() === null, "shouldn't be a first child");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.lastChild() === null, "shouldn't be a last child");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.nextNode() === null, "shouldn't be a next node");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.nextSibling() === null, "shouldn't be a next sibling");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.parentNode() === null, "shouldn't be a parent node");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.previousNode() === null, "shouldn't be a previous node");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.previousSibling() === null, "shouldn't be a previous sibling");
ok(tw.currentNode === document, "should be unchanged");
}
addLoadEvent(test);
addLoadEvent(SimpleTest.finish);
</script>
</pre>
</body>
</html>
|
