1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/browser-element/mochitest/priority/test_Preallocated.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,81 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +Test that the preallocated process starts up with priority BACKGROUND.
1.8 +-->
1.9 +<head>
1.10 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.11 + <script type="application/javascript" src="../browserElementTestHelpers.js"></script>
1.12 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.13 +</head>
1.14 +<body>
1.15 +
1.16 +<script type="application/javascript;version=1.7">
1.17 +"use strict";
1.18 +
1.19 +SimpleTest.waitForExplicitFinish();
1.20 +browserElementTestHelpers.setEnabledPref(true);
1.21 +browserElementTestHelpers.addPermission();
1.22 +browserElementTestHelpers.enableProcessPriorityManager();
1.23 +
1.24 +var preallocationEnabledPref = null;
1.25 +try {
1.26 + preallocationEnabledPref = SpecialPowers.getBoolPref('dom.ipc.processPrelaunch.enabled');
1.27 +}
1.28 +catch(e) {
1.29 + preallocationEnabledPref = null;
1.30 +}
1.31 +
1.32 +var childID = null;
1.33 +
1.34 +var cleanedUp = false;
1.35 +function cleanUp()
1.36 +{
1.37 + if (cleanedUp) {
1.38 + return;
1.39 + }
1.40 +
1.41 + cleanedUp = true;
1.42 +
1.43 + if (preallocationEnabledPref === null) {
1.44 + SpecialPowers.clearUserPref('dom.ipc.processPrelaunch.enabled');
1.45 + } else {
1.46 + SpecialPowers.setBoolPref('dom.ipc.processPrelaunch.enabled',
1.47 + preallocationEnabledPref);
1.48 + }
1.49 +}
1.50 +
1.51 +// Even if this test times out, we still want to run cleanUp so as to set the
1.52 +// pref back.
1.53 +addEventListener('unload', cleanUp);
1.54 +
1.55 +function runTest()
1.56 +{
1.57 + if (preallocationEnabledPref) {
1.58 + ok(false, "dom.ipc.processPrelaunch.enabled must be " +
1.59 + "false for this test to work.");
1.60 + SimpleTest.finish();
1.61 + return;
1.62 + }
1.63 +
1.64 + // Ensure that the preallocated process initially gets BACKGROUND priority.
1.65 + // That's it.
1.66 + expectProcessCreated().then(function(childID) {
1.67 + return expectPriorityChange(childID, 'PREALLOC', 'CPU_LOW');
1.68 + }).then(function() {
1.69 + // We need to set the pref asynchoronously or the preallocated process won't
1.70 + // be shut down.
1.71 + SimpleTest.executeSoon(function(){
1.72 + cleanUp();
1.73 + SimpleTest.finish();
1.74 + });
1.75 + });
1.76 +
1.77 + // Setting this pref to true should cause us to prelaunch a process.
1.78 + SpecialPowers.setBoolPref('dom.ipc.processPrelaunch.enabled', true);
1.79 +}
1.80 +
1.81 +addEventListener('testready', runTest);
1.82 +</script>
1.83 +</body>
1.84 +</html>
