third_party/WebKit/LayoutTests/traversal/moz-bug559526.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 Test adapted from http://mxr.mozilla.org/mozilla-central/source/content/base/test/test_bug559526.html
   5
   6 https://bugzilla.mozilla.org/show_bug.cgi?id=559526
   7 -->
   8 <head>
   9   <title>Test for Bug 559526</title>
  10 </head>
  11 <body>
  12 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=559526">Mozilla Bug 559526</a>
  13 <p id="display"></p>
  14 <div id="content" style="display: none">
  15
  16 </div>
  17 <pre id="test">
  18 <div id="nodes" style="display:none">
  19   <div id="child1"></div>
  20   <div id="child2"></div>
  21
  22   <div id="child3"></div>
  23   <div id="child4"></div>
  24   <div id="child5"></div>
  25   <div id="child6"></div>
  26   <div id="child7"></div>
  27   <div id="child8"></div>
  28 </div>
  29 <script type="application/javascript">
  30
  31 if (window.testRunner)
  32   testRunner.dumpAsText();
  33
  34 /** Test for Bug 559526 **/
  35
  36 var it;
  37 var recurse = false;
  38 var testCount = 0;
  39 function filter(node) {
  40   if (node.id == "child3" && ! recurse) {
  41     recurse = true;
  42     var ex = null;
  43     try {
  44       var foo = it.nextNode();
  45     } catch(e) {
  46       ex = e;
  47     }
  48     ++testCount;
  49     console.log("Should have thrown an exception: " + ex);
  50     recurse = false;
  51   }
  52   return NodeFilter.FILTER_ACCEPT;
  53 }
  54
  55 (function testNodeIterator() {
  56
  57   it = document.createNodeIterator(
  58     document.getElementById("nodes"),
  59     NodeFilter.SHOW_ELEMENT,
  60     filter,
  61     false
  62   );
  63   while (it.nextNode());
  64 })();
  65
  66 (function testTreeWalker() {
  67   it = document.createTreeWalker(
  68     document.getElementById("nodes"),
  69     NodeFilter.SHOW_ELEMENT,
  70     filter,
  71     false
  72   );
  73   while(it.nextNode());
  74
  75   it = document.createTreeWalker(
  76     document.getElementById("nodes"),
  77     NodeFilter.SHOW_ELEMENT,
  78     filter,
  79     false
  80   );
  81   it.firstChild();
  82   while(it.nextSibling());
  83
  84   it = document.createTreeWalker(
  85     document.getElementById("nodes"),
  86     NodeFilter.SHOW_ELEMENT,
  87     filter,
  88     false
  89   );
  90   it.lastChild();
  91   while(it.previousSibling());
  92 })();
  93
  94 console.log("Should have tests 4 filter calls: " + testCount);
  95 </script>
  96 </pre>
  97 </body>
  98 </html>