test/built-ins/Object/defineProperties/15.2.3.7-6-a-77.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

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

/*---
es5id: 15.2.3.7-6-a-77
description: >
    Object.defineProperties throws TypeError when P.configurable is
    false, P.writalbe is false, properties.value is +0 and P.value is
    -0 (8.12.9 step 10.a.ii.1)
includes: [propertyHelper.js]
---*/


var obj = {};

Object.defineProperty(obj, "foo", { 
    value: +0, 
    writable: false, 
    configurable: false 
});

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

    verifyNotWritable(obj, "foo");

    verifyNotEnumerable(obj, "foo");

    verifyNotConfigurable(obj, "foo");

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

}