third_party/WebKit/LayoutTests/inspector-protocol/heap-profiler/heap-samples-in-snapshot.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     InspectorTest.importScript("../../../../inspector-protocol/heap-profiler/resources/heap-snapshot-common.js");
  28
  29     function trackingStarted()
  30     {
  31         InspectorTest.log("Tracking started");
  32     }
  33
  34     function arraysEqual(a, b)
  35     {
  36         var sa = a.join(", ");
  37         var sb = b.join(", ");
  38         if (sa === sb)
  39             return true;
  40         InspectorTest.log("FAIL:\na = [" + sa+ "]\nb = [" + sb + "]");
  41         return false;
  42     }
  43
  44     function trackingStopped(snapshot)
  45     {
  46         var samples = snapshot.getSamples();
  47         InspectorTest.log("Last assigned id arrays match: " + arraysEqual(lastAssignedIds, samples.lastAssignedIds));
  48         var sizesMatch = (sizes.length <= samples.sizes.length);
  49         InspectorTest.log("Size arrays length is correct: " + sizesMatch);
  50         if (!sizesMatch) {
  51             // Print mismatch:
  52             arraysEqual(sizes, samples.sizes);
  53         }
  54         var sizesNonGrowing = true;
  55         for (var i = 0; i < samples.sizes.length; i++) {
  56             if ((sizes[i] === undefined && samples.sizes[i] !== 0) || (sizes[i] < samples.sizes[i])) {
  57                 sizesNonGrowing = false;
  58                 InspectorTest.log("FAIL: total size of live objects from interval cannot increase.");
  59                 // Print mismatch:
  60                 arraysEqual(sizes, samples.sizes);
  61             }
  62         }
  63         InspectorTest.log("Sizes non growing: " + sizesNonGrowing);
  64         InspectorTest.completeTest();
  65     }
  66
  67     var sizes = [];
  68     var lastAssignedIds = [];
  69     InspectorTest.eventHandler["HeapProfiler.lastSeenObjectId"] = function(messageObject)
  70     {
  71         lastAssignedIds.push(messageObject["params"]["lastSeenObjectId"]);
  72         if (lastAssignedIds.length === 2) {
  73             // Wait for two updates and then stop tracing.
  74             InspectorTest.stopRecordingHeapTimeline(trackingStopped);
  75         }
  76     }
  77
  78     InspectorTest.eventHandler["HeapProfiler.heapStatsUpdate"] = function(messageObject)
  79     {
  80         var samples = messageObject["params"]["statsUpdate"];
  81         for (var i = 0; i < samples.length; i += 3) {
  82             index = samples[i];
  83             sizes[index] = samples[i+2];
  84         }
  85     }
  86
  87     InspectorTest.sendCommand("HeapProfiler.startTrackingHeapObjects", {}, trackingStarted);
  88     //@ sourceURL=heap-objects-tracking.html
  89 }
  90 </script>
  91 </head>
  92 <body onload="setupIntervalAndRunTest()">
  93 <p>Test that heap tracking actually reports data fragments.</p>
  94 </body>
  95 </html>