third_party/WebKit/LayoutTests/inspector-protocol/heap-profiler/heap-objects-tracking.html

   1 <html>
   2 <head>
   3 <script type="text/javascript" src="../../http/tests/inspector-protocol/inspector-protocol-test.js"></script>
   4 <script>
   5
   6 if (window.testRunner) {
   7     testRunner.dumpAsText();
   8     testRunner.waitUntilDone();
   9 }
  10
  11 function junkGenerator()
  12 {
  13     var junkArray = new Array(1000);
  14     for (var i = 0; i < junkArray.length; ++i)
  15         junkArray[i] = "42 " + i;
  16     window.junkArray = junkArray;
  17 }
  18
  19 function setupIntervalAndRunTest()
  20 {
  21     setInterval(junkGenerator, 0);
  22     runTest();
  23 }
  24
  25 function test()
  26 {
  27     var lastSeenObjectIdEventCount = 0;
  28     var heapStatsUpdateEventCount = 0;
  29     function trackingStarted()
  30     {
  31         InspectorTest.log("SUCCESS: tracking started");
  32     }
  33
  34     function trackingStopped()
  35     {
  36         InspectorTest.log("Number of heapStatsUpdate events >= numbrt of lastSeenObjectId events: " + (heapStatsUpdateEventCount >= lastSeenObjectIdEventCount));
  37         InspectorTest.log("At least 2 lastSeenObjectId arrived: " + (lastSeenObjectIdEventCount >= 2));
  38         InspectorTest.log("SUCCESS: tracking stopped");
  39         InspectorTest.completeTest();
  40     }
  41
  42     var fragments = [];
  43     InspectorTest.eventHandler["HeapProfiler.lastSeenObjectId"] = function(messageObject)
  44     {
  45         if (++lastSeenObjectIdEventCount <= 2) {
  46             var params = messageObject["params"];
  47             InspectorTest.log("HeapProfiler.lastSeenObjectId has params: " + !!params);
  48             InspectorTest.log("HeapProfiler.lastSeenObjectId has params.lastSeenObjectId: " + !!params.lastSeenObjectId);
  49             InspectorTest.log("HeapProfiler.lastSeenObjectId has timestamp: " + !!params.timestamp);
  50             InspectorTest.log("A heap stats fragment did arrive before HeapProfiler.lastSeenObjectId: " + !!fragments.length);
  51             InspectorTest.log("");
  52         }
  53         if (lastSeenObjectIdEventCount == 2) {
  54             // Wait for two updates and then stop tracing.
  55              InspectorTest.sendCommand("HeapProfiler.stopTrackingHeapObjects", {}, trackingStopped);
  56         }
  57     }
  58
  59     InspectorTest.eventHandler["HeapProfiler.heapStatsUpdate"] = function(messageObject)
  60     {
  61         ++heapStatsUpdateEventCount
  62         var params = messageObject["params"];
  63         if (heapStatsUpdateEventCount <= 2)
  64             InspectorTest.log("HeapProfiler.heapStatsUpdate has params: " + !!params);
  65         var statsUpdate = params.statsUpdate;
  66         if (heapStatsUpdateEventCount <= 2) {
  67             InspectorTest.log("HeapProfiler.heapStatsUpdate has statsUpdate: " + !!statsUpdate);
  68             InspectorTest.log("statsUpdate length is not zero: " + !!statsUpdate.length);
  69             InspectorTest.log("statsUpdate length is a multiple of three: " + !(statsUpdate.length % 3));
  70             InspectorTest.log("statsUpdate: first fragmentIndex in first update: " + statsUpdate[0]);
  71             InspectorTest.log("statsUpdate: total count of objects is not zero: " + !!statsUpdate[1]);
  72             InspectorTest.log("statsUpdate: total size of objects is not zero: " + !!statsUpdate[2]);
  73             InspectorTest.log("");
  74         }
  75         fragments.push(statsUpdate);
  76     }
  77
  78     InspectorTest.sendCommand("HeapProfiler.startTrackingHeapObjects", {}, trackingStarted);
  79     //@ sourceURL=heap-objects-tracking.html
  80 }
  81 </script>
  82 </head>
  83 <body onload="setupIntervalAndRunTest()">
  84 <p>Test that heap tracking actually reports data fragments.</p>
  85 </body>
  86 </html>