test/built-ins/Array/prototype/forEach/15.4.4.18-7-c-i-5.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

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

/*---
es5id: 15.4.4.18-7-c-i-5
description: >
    Array.prototype.forEach - element to be retrieved is own data
    property that overrides an inherited accessor property on an
    Array-like object
---*/

        var testResult = false;

        function callbackfn(val, idx, obj) {
            if (idx === 0) {
                testResult = (val === 11);
            }
        }

        var proto = {};

        Object.defineProperty(proto, "0", {
            get: function () {
                return 5;
            },
            configurable: true
        });

        var Con = function () { };
        Con.prototype = proto;

        var child = new Con();
        child.length = 2;
        Object.defineProperty(child, "0", {
            value: 11,
            configurable: true
        });

        Array.prototype.forEach.call(child, callbackfn);

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