The Tor Browser / file revision

 /* 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/. */

 var cps = new ContentPrefInstance(null);

 var uri = ContentPrefTest.getURI("http://www.example.com/");

 function run_test() {

   do_test_pending();

   cps.setPref(uri, "asynctest", "pie");

   do_check_eq(cps.getPref(uri, "asynctest"), "pie");

   cps.getPref(uri, "asynctest", function(aValue) {

     do_check_eq(aValue, "pie");

     testCallbackObj();

   });

 }

 function testCallbackObj() {

   cps.getPref(uri, "asynctest", {

     onResult: function(aValue) {

       do_check_eq(aValue, "pie");

       cps.removePref(uri, "asynctest");

       testNoResult();

     }

   });

 }

 function testNoResult() {

   cps.getPref(uri, "asynctest", function(aValue) {

     do_check_eq(aValue, undefined);

     do_test_finished();

   });

 }