test262/test/suite/ch15/15.4/15.4.4/15.4.4.19/15.4.4.19-8-c-iii-3.js

/// 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 ch15/15.4/15.4.4/15.4.4.19/15.4.4.19-8-c-iii-3.js
 * @description Array.prototype.map - value of returned array element can be overwritten
 */


function testcase() {

        function callbackfn(val, idx, obj) {
            return 11;
        }

        var obj = { 0: 11, 1: 9, length: 2 };
        var newArr = Array.prototype.map.call(obj, callbackfn);

        try {
            var tempVal = newArr[1];
            newArr[1] += 1;
            return newArr[1] !== tempVal;
        } catch (ex) {
            return false;
        }
    }
runTestCase(testcase);