test_Preallocated.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

<!--

Test that the preallocated process starts up.

-->

<head>

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

  <script type="application/javascript" src="../browserElementTestHelpers.js"></script>

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

</head>

<body>

<script type="application/javascript">

"use strict";

SimpleTest.waitForExplicitFinish();

function expectProcessCreated() {

  /* eslint-env mozilla/chrome-script */

  return new Promise(resolve => {

    function parentExpectProcessCreated() {

      let topic = "ipc:content-initializing";

      let obs = { observe() {

        Services.obs.removeObserver(obs, topic);

        sendAsyncMessage("process-created");

}};

      Services.obs.addObserver(obs, topic);

    let helper = SpecialPowers.loadChromeScript(parentExpectProcessCreated);

    SimpleTest.registerCleanupFunction(function() { helper.destroy(); });

    helper.addMessageListener("process-created", resolve);

});

expectProcessCreated().then(() => {

  ok(true, "Process creation detected.");

  SimpleTest.finish();

});

// Kill existing preallocated process.

SpecialPowers.pushPrefEnv({"set": [["dom.ipc.processPrelaunch.enabled", false]]}).then(() => {

  // Make sure we have the capacity to launch preallocated process.

  SpecialPowers.pushPrefEnv({"set": [["dom.ipc.processCount", 100]]}).then(() => {

    // Enable preallocated process and run the test.

    SpecialPowers.pushPrefEnv({"set": [["dom.ipc.processPrelaunch.enabled", true]]});

});

});

</script>

</body>

</html>