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 file = do_get_file("syntax_error.jsm");

   var ios = Components.classes["@mozilla.org/network/io-service;1"]

                       .getService(Components.interfaces.nsIIOService);

   var uri = ios.newFileURI(file);

   try {

     Components.utils.import(uri.spec);

     do_throw("Failed to report any error at all");

   } catch (e) {

     do_check_neq(/^SyntaxError:/.exec(e + ''), null);

   }

 }