The Tor Browser / file revision

 /// Copyright (c) 2012 Ecma International.  All rights reserved. 

 /// Ecma International makes this code available under the terms and conditions set

 /// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 

 /// "Use Terms").   Any redistribution of this code must retain the above 

 /// copyright and this notice and otherwise comply with the Use Terms.

 /**

  * @path ch10/10.5/10.5-7-b-4-s.js

  * @description Strict Mode - Deleting property of the arguments object successful under strict mode

  * @onlyStrict

  */

 function testcase() {

         "use strict";

         function _10_5_7_b_4_fun() {

             var _10_5_7_b_4_1 = arguments[0] === 30 && arguments[1] === 12;

             delete arguments[1];

             var _10_5_7_b_4_2 = arguments[0] === 30 && typeof arguments[1] === "undefined";

             return _10_5_7_b_4_1 && _10_5_7_b_4_2;

         };

         return _10_5_7_b_4_fun(30, 12);

     }

 runTestCase(testcase);