/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla code
 *
 * The Initial Developer of the Original Code is Mozilla Corporation
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Justin Lebar <justin.lebar@gmail.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

function run_test() {
  var ps = Cc["@mozilla.org/preferences-service;1"].
            getService(Ci.nsIPrefService);

  var pb2= Cc["@mozilla.org/preferences-service;1"].
            getService(Ci.nsIPrefBranch2);

  var pb = Cc["@mozilla.org/preferences-service;1"].
            getService(Ci.nsIPrefBranch);

  var observer = {
    QueryInterface: function QueryInterface(aIID) {
      if (aIID.equals(Ci.nsIObserver) ||
          aIID.equals(Ci.nsISupports))
         return this;
      throw Components.results.NS_NOINTERFACE;
    },

    observe: function observe(aSubject, aTopic, aState) {
      // Don't do anything.
    }
  }

  /* Set the same pref twice.  This shouldn't leak. */
  pb.addObserver("UserPref.nonexistent.setIntPref", observer, false);
  pb.addObserver("UserPref.nonexistent.setIntPref", observer, false);
}