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/.

  */

 function run_test()

 {

   var domParser = Components.classes["@mozilla.org/xmlextras/domparser;1"]

                             .createInstance(Components.interfaces.nsIDOMParser);

   var aDom = domParser.parseFromString("<root><feed><entry/><entry/></feed></root>",

                                        "application/xml");

   var feedList = aDom.getElementsByTagName("feed");

   do_check_neq(feedList, null);

   do_check_eq(feedList.length, 1);

   do_check_neq(feedList[0], null);

   do_check_eq(feedList[0].tagName, "feed");

   var entry = feedList[0].getElementsByTagName("entry");

   do_check_neq(entry, null);

 }