third_party/WebKit/LayoutTests/fast/dom/NodeList/invalidate-node-lists-when-parsing.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd" >
   2 <html>
   3     <head>
   4         <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
   5         <title>5360748</title>
   6
   7         <script type="text/javascript">
   8             if (window.testRunner)
   9                 testRunner.dumpAsText();
  10
  11             function print(message)
  12             {
  13                 var paragraph = document.createElement("li");
  14                 paragraph.appendChild(document.createTextNode(message));
  15                 document.getElementById("console").appendChild(paragraph);
  16             }
  17
  18             function runTest() {
  19                 result3 = testForElement("onload", "testElement2");    // expect to see "testElement2"
  20
  21                 // don't show the results until the tests are finished -- it changes the DOM and could affect the tests
  22                 print(result1);
  23                 print(result2);
  24                 print(result3);
  25             }
  26             function testForElement(testName, elementId) {
  27                 var found = containsElementWithId(document.body, elementId);
  28                 if (window.GCController)
  29                     GCController.collect();
  30                 else {
  31                     // create lots of objects to force a garbage collection
  32                     var i = 0;
  33                     var s;
  34                     while (i < 5000) {
  35                         i = i+1.11;
  36                         s = s + " ";
  37                     }
  38                 }
  39
  40                 return testName + ": " + (found ? "found" : "not found");
  41             }
  42             function containsElementWithId(el, id) {
  43                 var found = false;
  44
  45                 if (el.id == id) {
  46                     found = true;
  47                 } else {
  48                     var children = el.childNodes;
  49                     for (var i=0; !found && i < children.length; i++)
  50                         found = containsElementWithId(children[i], id);
  51                 }
  52
  53                 return found;
  54             }
  55         </script>
  56     </head>
  57     <body onload="runTest()">
  58
  59     <p>This test checks to see if the DOM ContainerNode's NodeList cache is correctly invalidated when new content is parsed.</p>
  60     <p>If the test passes, you should see &quot;before: not found&quot;, &quot;after: found&quot; and &quot;onload: found&quot;.</p>
  61     <p>If the cache is not invalidated when the testElement is parsed, both before and after will be &quot;not found&quot;, which is a failure.</p>
  62     <hr>
  63     <p><ol id=console></ol></p>
  64
  65     <script type="text/javascript">
  66         result1 = testForElement("before", "testElement");    // expect not to see "testElement"
  67     </script>
  68
  69     <p id="testElement"></p>
  70
  71     <script type="text/javascript">
  72         result2 = testForElement("after", "testElement");    // expect to see "testElement"
  73     </script>
  74
  75     <p id="testElement2"></p>
  76 </body>
  77 </html>