Tue, 11 Oct 2016 12:07:47 -0700
Added tag jdk8u131-b00 for changeset 742cdd2928b6
1 /*
2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
24 /**
25 * Basic checks for Object.seal and Object.freeze.
26 *
27 * @test
28 * @run
29 */
31 var obj = { num: Math.E };
33 print("sealed? " + Object.isSealed(obj));
34 print("frozen? " + Object.isFrozen(obj));
36 Object.seal(obj);
37 print("sealed? " + Object.isSealed(obj));
39 // delete should fail - because we have sealed
40 print("deleted num? " + (delete obj.num));
41 print("num = " + obj.num);
43 // assignment should succeed
44 print("assign PI to num");
45 obj.num = Math.PI;
46 print("num = " + obj.num);
48 // assignment should fail -- because we freeze
49 Object.freeze(obj);
50 print("frozen? " + Object.isFrozen(obj));
52 print("assign 1729 to num");
53 obj.num = 1729;
54 print("num = " + obj.num);