test/built-ins/Object/defineProperty/15.2.3.6-3-169-1.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

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

/*---
es5id: 15.2.3.6-3-169-1
description: >
    Object.defineProperty - 'Attributes' is a Number object that uses
    Object's [[Get]] method to access the 'writable' property of
    prototype object (8.10.5 step 6.b)
---*/

        var obj = {};

            Number.prototype.writable = true;
            var numObj = new Number(-2);

            Object.defineProperty(obj, "property", numObj);

            var beforeWrite = obj.hasOwnProperty("property");

            obj.property = "isWritable";

            var afterWrite = (obj.property === "isWritable");

assert.sameValue(beforeWrite, true, 'beforeWrite');
assert.sameValue(afterWrite, true, 'afterWrite');