test_WebAudioMemoryReporting.html

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<!DOCTYPE HTML>

<html>

<head>

  <title>Web Audio memory reporting</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

var ac = new AudioContext();

var sp = ac.createScriptProcessor(4096, 1, 1);

sp.connect(ac.destination);

// Not started so as to test

// https://bugzilla.mozilla.org/show_bug.cgi?id=1225003#c2

var oac = new OfflineAudioContext(1, 1, 48000);

var nodeTypes = ["ScriptProcessorNode", "AudioDestinationNode"];

var objectTypes = ["dom-nodes", "engine-objects", "track-objects"];

var usages = { "explicit/webaudio/audiocontext": 0 };

for (var i = 0; i < nodeTypes.length; ++i) {

  for (var j = 0; j < objectTypes.length; ++j) {

    usages["explicit/webaudio/audio-node/" +

           nodeTypes[i] + "/" + objectTypes[j]] = 0;

var handleReport = function(aProcess, aPath, aKind, aUnits, aAmount) {

  if (aPath in usages) {

    usages[aPath] += aAmount;

var finished = function () {

  ok(true, "Yay didn't crash!");

  for (var resource in usages) {

    ok(usages[resource] > 0, "Non-zero usage for " + resource);

};

  SimpleTest.finish();

SpecialPowers.Cc["@mozilla.org/memory-reporter-manager;1"].

  getService(SpecialPowers.Ci.nsIMemoryReporterManager).

  getReports(handleReport, null, finished, null, /* anonymized = */ false);

// To test bug 1225003, run a failing decodeAudioData() job over a time when

// the tasks from getReports() are expected to run.

ac.decodeAudioData(new ArrayBuffer(4), function(){}, function(){});

</script>

</html>