tools/profiler/tests/chrome/test_profile_worker_bug_1428076.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=1428076
   5 -->
   6 <head>
   7   <meta charset="utf-8">
   8   <title>Test for Bug 1428076</title>
   9   <link rel="stylesheet" type="text/css" href="chrome://global/skin"/>
  10   <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
  11 </head>
  12 <body>
  13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1428076">Mozilla Bug 1428076</a>
  14
  15 <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  16 <script type="application/javascript" src="profiler_test_utils.js"></script>
  17 <script type="application/javascript">
  18 /** Test for Bug 1428076 **/
  19
  20 /* globals runTest */
  21
  22 "use strict";
  23
  24 const settings = {
  25   entries: 1000000, // 9MB
  26   interval: 1, // ms
  27   features: ["js", "stackwalk"],
  28   threads: ["GeckoMain", "Compositor", "Worker"], // most common combination
  29 };
  30
  31 function workload() {
  32   // We use a Blob for the worker content to avoid an external JS file, and data
  33   // URLs seem to be blocked in a chrome environment.
  34   const workerContent = new Blob(
  35     [ "console.log('hello world!')" ],
  36     { type: "application/javascript" }
  37   );
  38   const blobURL = URL.createObjectURL(workerContent);
  39
  40   // We start a worker and then terminate it right away to trigger our bug.
  41   info("Starting the worker, and terminate it right away.");
  42   const myWorker = new Worker(blobURL);
  43   myWorker.terminate();
  44
  45   URL.revokeObjectURL(blobURL);
  46
  47   // We're deferring some little time so that the worker has the time to be
  48   // properly cleaned up and the profiler actually saves the worker data.
  49   return new Promise(resolve => {
  50     setTimeout(resolve, 50);
  51   });
  52 }
  53
  54 runTest(settings, workload);
  55
  56 </script>
  57 </body>
  58 </html>