2 * Any copyright is dedicated to the Public Domain.
3 * http://creativecommons.org/licenses/publicdomain/
5 * Jeff Walden <jwalden+code@mit.edu>
8 var gTestfile = 'preventExtensions-idempotent.js';
9 //-----------------------------------------------------------------------------
10 var BUGNUMBER = 599459;
11 var summary = 'Object.preventExtensions should be idempotent';
13 print(BUGNUMBER + ": " + summary);
20 assertEq(Object.preventExtensions(obj), obj);
21 assertEq(Object.isExtensible(obj), false);
22 assertEq(Object.preventExtensions(obj), obj);
23 assertEq(Object.isExtensible(obj), false);
25 /******************************************************************************/
27 if (typeof reportCompare === "function")
28 reportCompare(true, true);
30 print("All tests passed!");