src/third_party/WebKit/LayoutTests/inspector-protocol/heap-profiler/heap-snapshot-with-detached-dom-tree.html

   1 <html>
   2 <head>
   3 <script type="text/javascript" src="../../http/tests/inspector-protocol/inspector-protocol-test.js"></script>
   4 <script>
   5 if (window.testRunner) {
   6     testRunner.dumpAsText();
   7     testRunner.waitUntilDone();
   8 }
   9
  10 function createDetachedDomTreeAndRunTest()
  11 {
  12     if (window.gc)
  13         window.gc();
  14     window.retaining_wrapper = document.createElement("div");
  15     var t = document.createElement("div");
  16     retaining_wrapper.appendChild(t);
  17     t.appendChild(document.createElement("div"));
  18
  19     if (window.testRunner)
  20         runTest();
  21 }
  22
  23 function test()
  24 {
  25     InspectorTest.importScript("../../../../inspector-protocol/heap-profiler/resources/heap-snapshot-common.js");
  26
  27     function checkHeapSnapshot(snapshot) {
  28         var node;
  29         for (var it = snapshot._allNodes(); it.hasNext(); it.next()) {
  30             if (it.node.name() === "(Detached DOM trees)") {
  31                 node = it.node;
  32                 break;
  33             }
  34         }
  35         if (node)
  36             InspectorTest.log("SUCCESS: found " + node.name());
  37         else
  38             return InspectorTest.fail("cannot find detached DOM trees root");
  39
  40         var detachedDOMTreeRE = /^Detached DOM tree/;
  41         var detachedDomTreeFound = false;
  42         for (var iter = node.edges(); iter.hasNext(); iter.next()) {
  43             var node = iter.edge.node();
  44             if (detachedDOMTreeRE.test(node.className())) {
  45                 if ("Detached DOM tree / 3 entries" === node.name()) {
  46                     if (detachedDomTreeFound)
  47                         return InspectorTest.fail("second " + node.name());
  48                     detachedDomTreeFound = true;
  49                     InspectorTest.log("SUCCESS: found " + node.name());
  50                     checkDetachedDOMTreeNodes(node);
  51                 } else
  52                     return InspectorTest.fail("unexpected detached DOM tree: " + node.name());
  53             }
  54         }
  55         InspectorTest.completeTest();
  56     }
  57
  58     function checkDetachedDOMTreeNodes(treeNode)
  59     {
  60         var divCount = 0;
  61         for (var iter = treeNode.edges(); iter.hasNext(); iter.next()) {
  62             var node = iter.edge.node();
  63             if (node.name() === "HTMLDivElement")
  64                 ++divCount;
  65             else
  66                 return InspectorTest.fail("unexpected DOM wrapper: " + node.name());
  67         }
  68         if (divCount === 3)
  69             InspectorTest.log("SUCCESS: found " + divCount + " DIVs in " + treeNode.name());
  70         else
  71             return InspectorTest.fail("unexpected DIV count: " + divCount);
  72
  73     }
  74
  75     InspectorTest.takeHeapSnapshot(checkHeapSnapshot);
  76 }
  77 </script>
  78 </head>
  79 <body onload="createDetachedDomTreeAndRunTest()">
  80 <p>Test that all nodes from the detached DOM tree will get into one group in the heap snapshot. <a href="https://bugs.webkit.org/show_bug.cgi?id=107819">Bug 107819.</p>
  81 </body>
  82 </html>