content/html/document/test/test_bug311681.html@6474c204b198
content/html/document/test/test_bug311681.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 <!DOCTYPE HTML>
2 <html>
3 <!--
4 https://bugzilla.mozilla.org/show_bug.cgi?id=311681
5 -->
6 <head>
7 <title>Test for Bug 311681</title>
8 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
9 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
10 </head>
11 <body>
12 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=311681">Mozilla Bug 311681</a>
13 <script class="testbody" type="text/javascript">
14 // Setup script
15 SimpleTest.waitForExplicitFinish();
17 // Make sure to trigger the hashtable case by asking for enough elements
18 // by ID.
19 for (var i = 0; i < 256; ++i) {
20 var x = document.getElementById(i);
21 }
23 // save off the document.getElementById function, since getting it as a
24 // property off the document it causes a content flush.
25 var fun = document.getElementById;
27 // Slot for our initial element with id "content"
28 var testNode;
30 function getCont() {
31 return fun.call(document, "content");
32 }
34 function testClone() {
35 // Test to make sure that if we have multiple nodes with the same ID in
36 // a document we don't forget about one of them when the other is
37 // removed.
38 var newParent = $("display");
39 var node = testNode.cloneNode(true);
40 isnot(node, testNode, "Clone should be a different node");
42 newParent.appendChild(node);
44 // Check what getElementById returns, no flushing
45 is(getCont(), node, "Should be getting new node pre-flush 1");
47 // Trigger a layout flush, just in case.
48 var itemHeight = newParent.offsetHeight/10;
50 // Check what getElementById returns now.
51 is(getCont(), node, "Should be getting new node post-flush 1");
53 clear(newParent);
55 // Check what getElementById returns, no flushing
56 is(getCont(), testNode, "Should be getting orig node pre-flush 2");
58 // Trigger a layout flush, just in case.
59 var itemHeight = newParent.offsetHeight/10;
61 // Check what getElementById returns now.
62 is(getCont(), testNode, "Should be getting orig node post-flush 2");
64 node = testNode.cloneNode(true);
65 newParent.appendChild(node);
66 testNode.parentNode.removeChild(testNode);
68 // Check what getElementById returns, no flushing
69 is(getCont(), node, "Should be getting clone pre-flush");
71 // Trigger a layout flush, just in case.
72 var itemHeight = newParent.offsetHeight/10;
74 // Check what getElementById returns now.
75 is(getCont(), node, "Should be getting clone post-flush");
77 }
79 function clear(node) {
80 while (node.hasChildNodes()) {
81 node.removeChild(node.firstChild);
82 }
83 }
85 addLoadEvent(testClone);
86 addLoadEvent(SimpleTest.finish);
87 </script>
88 <p id="display"></p>
89 <div id="content" style="display: none">
90 <script class="testbody" type="text/javascript">
91 testNode = fun.call(document, "content");
92 isnot(testNode, null, "Should have node here");
93 </script>
94 </div>
95 <pre id="test">
96 </pre>
97 </body>
98 </html>
