test/built-ins/Array/prototype/every/15.4.4.16-7-c-i-14.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
42
43
44
45
46

// 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.

/*---
es5id: 15.4.4.16-7-c-i-14
description: >
    Array.prototype.every - element to be retrieved is own accessor
    property that overrides an inherited accessor property on an Array
includes: [runTestCase.js]
---*/

function testcase() {

        function callbackfn(val, idx, obj) {
            if (idx === 0) {
                return val === 5;
            } else {
                return true;
            }
        }

        var arr = [];
        try {
            Object.defineProperty(Array.prototype, "0", {
                get: function () {
                    return 5;
                },
                configurable: true
            });

            Object.defineProperty(arr, "0", {
                get: function () {
                    return 11;
                },
                configurable: true
            });

            return !arr.every(callbackfn);
        } finally {
            delete Array.prototype[0];
        }
    }
runTestCase(testcase);