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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=311681
-->
<head>
<title>Test for Bug 311681</title>
<script 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=311681">Mozilla Bug 311681</a>
<script class="testbody" type="text/javascript">
// Setup script
SimpleTest.waitForExplicitFinish();
// Make sure to trigger the hashtable case by asking for enough elements
// by ID.
for (var i = 0; i < 256; ++i) {
var x = document.getElementById(i);
}
// save off the document.getElementById function, since getting it as a
// property off the document it causes a content flush.
var fun = document.getElementById;
// Slot for our initial element with id "content"
var testNode;
function getCont() {
return fun.call(document, "content");
}
function testClone() {
// Test to make sure that if we have multiple nodes with the same ID in
// a document we don't forget about one of them when the other is
// removed.
var newParent = $("display");
var node = testNode.cloneNode(true);
isnot(node, testNode, "Clone should be a different node");
newParent.appendChild(node);
// Check what getElementById returns, no flushing
is(getCont(), node, "Should be getting new node pre-flush 1");
// Trigger a layout flush, just in case.
var itemHeight = newParent.offsetHeight/10;
// Check what getElementById returns now.
is(getCont(), node, "Should be getting new node post-flush 1");
clear(newParent);
// Check what getElementById returns, no flushing
is(getCont(), testNode, "Should be getting orig node pre-flush 2");
// Trigger a layout flush, just in case.
var itemHeight = newParent.offsetHeight/10;
// Check what getElementById returns now.
is(getCont(), testNode, "Should be getting orig node post-flush 2");
node = testNode.cloneNode(true);
newParent.appendChild(node);
testNode.remove();
// Check what getElementById returns, no flushing
is(getCont(), node, "Should be getting clone pre-flush");
// Trigger a layout flush, just in case.
var itemHeight = newParent.offsetHeight/10;
// Check what getElementById returns now.
is(getCont(), node, "Should be getting clone post-flush");
}
function clear(node) {
while (node.hasChildNodes()) {
node.firstChild.remove();
}
}
addLoadEvent(testClone);
addLoadEvent(SimpleTest.finish);
</script>
<p id="display"></p>
<div id="content" style="display: none">
<script class="testbody" type="text/javascript">
testNode = fun.call(document, "content");
isnot(testNode, null, "Should have node here");
</script>
</div>
<pre id="test">
</pre>
</body>
</html>
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