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+<html xmlns="http://www.w3.org/1999/xhtml">
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=311681
+-->
+<head>
+ <title>Test for Bug 311681</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=311681">Mozilla Bug 311681</a>
+<script class="testbody" type="text/javascript">
+<![CDATA[
+ // 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 orig 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.parentNode.removeChild(testNode);
+
+ // 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.removeChild(node.firstChild);
+ }
+ }
+
+ addLoadEvent(testClone);
+ addLoadEvent(SimpleTest.finish);
+]]>
+</script>
+<p id="display"></p>
+<div id="content" style="display: none">
+ <script class="testbody" type="text/javascript">
+ <![CDATA[
+ testNode = fun.call(document, "content");
+ // Needs incremental XML parser
+ isnot(testNode, null, "Should have node here");
+ ]]>
+ </script>
+</div>
+<pre id="test">
+</pre>
+</body>
+</html>
+