testing/mochitest/tests/test_bug311681.xhtml

   1 <html xmlns="http://www.w3.org/1999/xhtml">
   2 <!--
   3 https://bugzilla.mozilla.org/show_bug.cgi?id=311681
   4 -->
   5 <head>
   6   <title>Test for Bug 311681</title>
   7   <script type="text/javascript" src="/MochiKit/packed.js"></script>
   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 <![CDATA[
  15   // Setup script
  16   SimpleTest.waitForExplicitFinish();
  17
  18   // Make sure to trigger the hashtable case by asking for enough elements
  19   // by ID.
  20   for (var i = 0; i < 256; ++i) {
  21     var x = document.getElementById(i);
  22   }
  23
  24   // save off the document.getElementById function, since getting it as a
  25   // property off the document it causes a content flush.
  26   var fun = document.getElementById;
  27
  28   // Slot for our initial element with id "content"
  29   var testNode;
  30
  31   function getCont() {
  32     return fun.call(document, "content");
  33   }
  34
  35   function testClone() {
  36     // Test to make sure that if we have multiple nodes with the same ID in
  37     // a document we don't forget about one of them when the other is
  38     // removed.
  39     var newParent = $("display");
  40     var node = testNode.cloneNode(true);
  41     isnot(node, testNode, "Clone should be a different node");
  42
  43     newParent.appendChild(node);
  44
  45     // Check what getElementById returns, no flushing
  46     is(getCont(), testNode, "Should be getting orig node pre-flush 1");
  47
  48     // Trigger a layout flush, just in case.
  49     var itemHeight = newParent.offsetHeight/10;
  50
  51     // Check what getElementById returns now.
  52     is(getCont(), testNode, "Should be getting orig node post-flush 1");
  53
  54     clear(newParent);
  55
  56     // Check what getElementById returns, no flushing
  57     is(getCont(), testNode, "Should be getting orig node pre-flush 2");
  58
  59     // Trigger a layout flush, just in case.
  60     var itemHeight = newParent.offsetHeight/10;
  61
  62     // Check what getElementById returns now.
  63     is(getCont(), testNode, "Should be getting orig node post-flush 2");
  64
  65     node = testNode.cloneNode(true);
  66     newParent.appendChild(node);
  67     testNode.parentNode.removeChild(testNode);
  68
  69     // Check what getElementById returns, no flushing
  70     is(getCont(), node, "Should be getting clone pre-flush");
  71
  72     // Trigger a layout flush, just in case.
  73     var itemHeight = newParent.offsetHeight/10;
  74
  75     // Check what getElementById returns now.
  76     is(getCont(), node, "Should be getting clone post-flush");
  77
  78   }
  79
  80   function clear(node) {
  81     while (node.hasChildNodes()) {
  82       node.removeChild(node.firstChild);
  83     }
  84   }
  85
  86   // Actually run the test once the XML parser works incrementally
  87   // addLoadEvent(testClone);
  88   addLoadEvent(SimpleTest.finish);
  89 ]]>
  90 </script>
  91 <p id="display"></p>
  92 <div id="content" style="display: none">
  93   <script class="testbody" type="text/javascript">
  94   <![CDATA[
  95     testNode = fun.call(document, "content");
  96     // Needs incremental XML parser
  97     todo(testNode != null, "Should have node here");
  98   ]]>
  99   </script>
 100 </div>
 101 <pre id="test">
 102 </pre>
 103 </body>
 104 </html>
 105