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 ch13/13.2/13.2-15-1.js

  * @description Function Object has length as its own property and does not invoke the setter defined on Function.prototype.length (Step 15)

  */

 function testcase() {

             var fun = function (x, y) { };

             var verifyValue = false;

             verifyValue = (fun.hasOwnProperty("length") && fun.length === 2);

             var verifyWritable = false;

             fun.length = 1001;

             verifyWritable = (fun.length === 1001);

             var verifyEnumerable = false;

             for (var p in fun) {

                 if (p === "length") {

                     verifyEnumerable = true;

                 }

             }

             var verifyConfigurable = false;

             delete fun.length;

             verifyConfigurable = fun.hasOwnProperty("length");

             return verifyValue && !verifyWritable && !verifyEnumerable && verifyConfigurable;

         }

 runTestCase(testcase);