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

   1 <html><head>
   2     <script>
   3         if (window.testRunner)
   4             testRunner.dumpAsText();
   5
   6         var types = [ XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
   7                       XPathResult.ORDERED_NODE_SNAPSHOT_TYPE ];
   8
   9         function gc()
  10         {
  11             if (window.GCController)
  12                 return GCController.collect();
  13
  14             for (var i = 0; i < 10000; i++) { // > force garbage collection (FF requires about 9K allocations before a collect)
  15                 var s = new String("abc");
  16             }
  17         }
  18
  19         function test(type)
  20         {
  21             var result = document.evaluate("//div", document.documentElement, null, type, null);
  22             result.snapshotItem(0).foo = "PASS";
  23             document.body.removeChild(result.snapshotItem(0));
  24             gc();
  25             var console = document.getElementById("console");
  26             console.appendChild(document.createTextNode(result.snapshotItem(0).foo));
  27             console.appendChild(document.createElement("br"));
  28         }
  29
  30         function tests()
  31         {
  32             while (types.length) {
  33                 test(types.pop());
  34             }
  35         }
  36     </script>
  37 </head>
  38 <body onload="tests()">
  39 <div></div>
  40 <div></div>
  41 <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>
  42 <div> For this test to PASS you should see 2 PASS below.</div><br>
  43 <div id="console"></div>
  44 </body></html>