test/suite/ch15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-6.js


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/// 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 ch15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-6.js
 * @description Array.prototype.filter - properties can be added to prototype after current position are visited on an Array-like object
 */


function testcase() {
        function callbackfn(val, idx, obj) {
            return true;
        }
        var obj = { length: 2 };

        try {
            Object.defineProperty(obj, "0", {
                get: function () {
                    Object.defineProperty(Object.prototype, "1", {
                        get: function () {
                            return 6.99;
                        },
                        configurable: true
                    });
                    return 0;
                },
                configurable: true
            });

            var newArr = Array.prototype.filter.call(obj, callbackfn);

            return newArr.length === 2 && Array[1] === 6.99;
        } finally {
            delete Object.prototype[1];
        }
    }
runTestCase(testcase);