test/built-ins/Array/prototype/reduce/15.4.4.21-9-c-i-16.js


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// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-array.prototype.reduce
es5id: 15.4.4.21-9-c-i-16
description: >
    Array.prototype.reduce - element to be retrieved is inherited
    accessor property on an Array
---*/

        var testResult = false;
        var initialValue = 0;
        function callbackfn(prevVal, curVal, idx, obj) {
            if (idx === 1) {
                testResult = (curVal === 1);
            }
        }

            Object.defineProperty(Array.prototype, "1", {
                get: function () {
                    return 1;
                },
                configurable: true
            });

            var arr = [0, , 2, ];

            arr.reduce(callbackfn, initialValue);

assert(testResult, 'testResult !== true');