test/built-ins/Array/prototype/filter/15.4.4.20-9-c-i-13.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: 15.4.4.20-9-c-i-13
description: >
    Array.prototype.filter - element to be retrieved is own accessor
    property that overrides an inherited accessor property on an
    Array-like object
includes: [runTestCase.js]
---*/

function testcase() {
        function callbackfn(val, idx, obj) {
            return idx === 1 && val === 12;
        }

        var proto = {};

        Object.defineProperty(proto, "1", {
            get: function () {
                return 6;
            },
            configurable: true
        });

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

        var child = new Con();
        child.length = 10;

        Object.defineProperty(child, "1", {
            get: function () {
                return 12;
            },
            configurable: true
        });
        var newArr = Array.prototype.filter.call(child, callbackfn);

        return newArr.length === 1 && newArr[0] === 12;
    }
runTestCase(testcase);