Imported Upstream version 1.0.0
[platform/upstream/js.git] / js / src / tests / ecma_5 / Object / preventExtensions-idempotent.js
1 /*
2  * Any copyright is dedicated to the Public Domain.
3  * http://creativecommons.org/licenses/publicdomain/
4  * Contributor:
5  *   Jeff Walden <jwalden+code@mit.edu>
6  */
7
8 var gTestfile = 'preventExtensions-idempotent.js';
9 //-----------------------------------------------------------------------------
10 var BUGNUMBER = 599459;
11 var summary = 'Object.preventExtensions should be idempotent';
12
13 print(BUGNUMBER + ": " + summary);
14
15 /**************
16  * BEGIN TEST *
17  **************/
18
19 var obj = {};
20 assertEq(Object.preventExtensions(obj), obj);
21 assertEq(Object.isExtensible(obj), false);
22 assertEq(Object.preventExtensions(obj), obj);
23 assertEq(Object.isExtensible(obj), false);
24
25 /******************************************************************************/
26
27 if (typeof reportCompare === "function")
28   reportCompare(true, true);
29
30 print("All tests passed!");