js/src/tests/test262/built-ins/Object/preventExtensions/15.2.3.10-3-7.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

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

/*---
es5id: 15.2.3.10-3-7
description: >
    Object.preventExtensions - indexed properties cannot be added into
    a Number object
includes: [propertyHelper.js]
---*/

var obj = new Number(123);

assert(Object.isExtensible(obj));
Object.preventExtensions(obj);
assert(!Object.isExtensible(obj));

verifyNotWritable(obj, "0", "nocheck");

assert(!obj.hasOwnProperty("0"));

reportCompare(0, 0);