test_locked_prefs.js

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// Locked status should be communicated to children.

function isParentProcess() {

  return Services.appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT;

function run_test() {

  const pb = Services.prefs;

  let bprefname = "Test.IPC.locked.bool";

  let iprefname = "Test.IPC.locked.int";

  let sprefname = "Test.IPC.locked.string";

  let isParent = isParentProcess();

  if (isParent) {

    pb.setBoolPref(bprefname, true);

    pb.lockPref(bprefname);

    pb.setIntPref(iprefname, true);

    pb.lockPref(iprefname);

    pb.setStringPref(sprefname, true);

    pb.lockPref(sprefname);

    pb.unlockPref(sprefname);

    run_test_in_child("test_locked_prefs.js");

  ok(pb.prefIsLocked(bprefname), bprefname + " should be locked in the child");

  ok(pb.prefIsLocked(iprefname), iprefname + " should be locked in the child");

ok(

    !pb.prefIsLocked(sprefname),

    sprefname + " should be unlocked in the child"

);