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 assertEqArray(actual, expected) {

     if (actual.length != expected.length) {

         throw new Error(

             "array lengths not equal: got " +

             uneval(actual) + ", expected " + uneval(expected));

     }

     for (var i = 0; i < actual.length; ++i) {

         if (actual[i] != expected[i]) {

         throw new Error(

             "arrays not equal at element " + i + ": got " +

             uneval(actual) + ", expected " + uneval(expected));

         }

     }

 }