test/suite/ch15/15.2/15.2.3/15.2.3.6/15.2.3.6-4-148.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. 
/// 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.
/**
 * @path ch15/15.2/15.2.3/15.2.3.6/15.2.3.6-4-148.js
 * @description Object.defineProperty - 'O' is an Array, 'name' is the length property of 'O', test the [[Value]] field of 'desc' is an Object which has an own valueOf method that returns an object and toString method that returns a string (15.4.5.1 step 3.c)
 */


function testcase() {

        var arrObj = [];
        var toStringAccessed = false;
        var valueOfAccessed = false;

        Object.defineProperty(arrObj, "length", {
            value: {
                toString: function () {
                    toStringAccessed = true;
                    return '2';
                },

                valueOf: function () {
                    valueOfAccessed = true;
                    return {};
                }
            }
        });
        return arrObj.length === 2 && toStringAccessed && valueOfAccessed;

    }
runTestCase(testcase);