JDK-8023368.js revision 512:b7c04b3b01a7 
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 */
23
24/**
25 * JDK-8023368: Instance __proto__ property should exist and be writable.
26 *
27 * @test
28 * @run
29 */
30
31load("nashorn:mozilla_compat.js");
32
33// function to force same callsites
34function check(obj) {
35    print(obj.func());
36    print(obj.x);
37    print(obj.toString());
38}
39
40function Func() {
41}
42
43Func.prototype.func = function() {
44    return "Func.prototype.func";
45}
46
47Func.prototype.x = "hello";
48
49var obj = new Func();
50var obj2 = Object.create(obj);
51
52// check direct and indirect __proto__ change
53check(obj);
54check(obj2);
55obj.__proto__ = {
56   func: function() {
57        return "obj.__proto__.func @ " + __LINE__;
58   },
59   x: 344
60};
61
62check(obj);
63check(obj2);
64
65// check indirect (1 and 2 levels) __proto__ function change
66obj.__proto__.__proto__ = {
67    toString: function() {
68        return "new object.toString";
69    }
70};
71
72check(obj);
73check(obj2);
74