test/built-ins/Array/prototype/forEach/15.4.4.18-7-b-3.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

// 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.foreach
es5id: 15.4.4.18-7-b-3
description: >
    Array.prototype.forEach - deleted properties in step 2 are visible
    here
---*/

        var accessed = false;
        var testResult = true;

        function callbackfn(val, idx, obj) {
            accessed = true;
            if (idx === 8) {
                testResult = false;
            }
        }
        var obj = { 2: 6.99, 8: 19 };

        Object.defineProperty(obj, "length", {
            get: function () {
                delete obj[8];
                return 10;
            },
            configurable: true
        });

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

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