third_party/WebKit/LayoutTests/fast/xpath/xpath-other-nodeset-result-should-mark-its-nodeset.html

   1 <html><head>
   2     <script>
   3         if (window.testRunner)
   4             testRunner.dumpAsText();
   5
   6         // ANY_ORDERED_NODE_TYPE should be the last item in the array so that
   7         // there is only one node that can match (thus it does not tie us to any
   8         // specific ordering in the nodeset).
   9         var types = [ XPathResult.FIRST_ORDERED_NODE_TYPE, XPathResult.ANY_UNORDERED_NODE_TYPE ];
  10
  11         function gc()
  12         {
  13             if (window.GCController)
  14                 return GCController.collect();
  15
  16             for (var i = 0; i < 10000; i++) { // > force garbage collection (FF requires about 9K allocations before a collect)
  17                 var s = new String("abc");
  18             }
  19         }
  20
  21         function test(type)
  22         {
  23             document.getElementsByTagName("span")[0].foo = "PASS";
  24             var result = document.evaluate("//span", document.documentElement, null, type, null);
  25             document.body.removeChild(document.getElementsByTagName("span")[0]);
  26             gc();
  27             var console = document.getElementById("console");
  28             console.appendChild(document.createTextNode(result.singleNodeValue.foo));
  29             console.appendChild(document.createElement("br"));
  30         }
  31
  32         function tests()
  33         {
  34             while (types.length) {
  35                 test(types.pop());
  36             }
  37         }
  38     </script>
  39 </head>
  40 <body onload="tests()">
  41 <span></span>
  42 <span></span>
  43 <div> Test for bug <a href="https://bugs.webkit.org/show_bug.cgi?id=34231">34231</a>: Nodes in XPath result snapshots should keep JS wrappers alive.</div>
  44 <div> For this test to PASS you should see 2 PASS below.</div><br>
  45 <div id="console"></div>
  46 </body></html>