test/built-ins/Object/defineProperty/15.2.3.6-4-219.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.

/*---
es5id: 15.2.3.6-4-219
description: >
    Object.defineProperty - 'O' is an Array, 'name' is an array index
    property, test TypeError is thrown when the [[Value]] field of
    'desc' is -0, and the [[Value]] attribute value of 'name' is +0
    (15.4.5.1 step 4.c)
includes: [propertyHelper.js]
---*/

var arrObj = [];

Object.defineProperty(arrObj, "0", { value: +0 });

try {
    Object.defineProperty(arrObj, "0", { value: -0 });
    $ERROR("Expected an exception.");
} catch (e) {
    verifyEqualTo(arrObj, "0", +0);

    verifyNotWritable(arrObj, "0");

    verifyNotEnumerable(arrObj, "0");

    verifyNotConfigurable(arrObj, "0");

    if (!(e instanceof TypeError)) {
        $ERROR("Expected TypeError, got " + e);
    }

}