1 /*
2 * Copyright (c) 2005, 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 * @test
26 * @bug 6255956
27 * @summary Test equals and hashCode for descriptors
28 * @author Eamonn McManus
29 * @run clean EqualsHashCodeTest
30 * @run build EqualsHashCodeTest
31 * @run main EqualsHashCodeTest
32 */
33
34 import java.util.Arrays;
35 import javax.management.*;
36 import javax.management.modelmbean.DescriptorSupport;
37
38 public class EqualsHashCodeTest {
39 public static void main(String[] args) throws Exception {
40 int[] squares = {1, 4, 9, 16};
41 int[] serauqs = {16, 9, 4, 1};
42 int[][] numbers = {squares, serauqs};
43
44 Descriptor sq1 =
45 new ImmutableDescriptor(new String[] {"name", "rank", "squares",
46 "null", "numbers"},
47 new Object[] {"Foo McBar", "lowly",
48 squares.clone(), null,
49 numbers});
50 Descriptor sq2 =
51 new DescriptorSupport(new String[] {"Name", "Rank", "SquareS",
52 "NULL", "NuMbErS"},
53 new Object[] {"Foo McBar", "lowly",
54 squares.clone(), null,
55 numbers});
56 Descriptor sq3 = (Descriptor) sq2.clone();
57 Descriptor sq4 = ImmutableDescriptor.union(sq1, sq2);
58
59 String[] names = sq1.getFieldNames();
60 Object[] values = sq1.getFieldValues((String[]) null);
61 Object[] values2 = sq1.getFieldValues(names);
62 if (!Arrays.deepEquals(values, values2)) {
63 throw new Exception("Arrays not equal: " +
64 Arrays.deepToString(values) + Arrays.deepToString(values2));
65 }
66
67 int expectedHashCode = 0;
68 for (int i = 0; i < names.length; i++) {
69 Object value = values[i];
70 int h;
71 if (value == null)
72 h = 0;
73 else if (value instanceof int[])
74 h = Arrays.hashCode((int[]) value);
75 else if (value instanceof Object[])
76 h = Arrays.deepHashCode((Object[]) value);
77 else
78 h = value.hashCode();
79 expectedHashCode += names[i].toLowerCase().hashCode() ^ h;
80 }
81 for (Descriptor d : new Descriptor[] {sq1, sq2, sq3, sq4}) {
82 System.out.println("Testing hashCode for " +
83 d.getClass().getName() + ": " + d);
84 if (d.hashCode() != expectedHashCode) {
85 throw new Exception("Bad hashCode: expected " +
86 expectedHashCode + ", got " + d.hashCode() +
87 ", for " + d);
88 }
89 }
90
91 int i;
92 for (i = 0; i < names.length; i++) {
93 if (names[i].equals("squares")) {
94 values[i] = serauqs.clone();
95 break;
96 }
97 }
98 if (i >= names.length)
99 throw new Exception("Internal error: no squares name");
100 Descriptor qs1 = new ImmutableDescriptor(names, values);
101 values[i] = serauqs.clone();
102 Descriptor qs2 = new DescriptorSupport(names, values);
103
104 System.out.println("Testing equality...");
105
106 Object[][] equivalenceClasses = {
107 {sq1, sq2, sq3, sq4},
108 {qs1, qs2},
109 };
110 for (Object[] equivClass : equivalenceClasses) {
111 for (Object a : equivClass) {
112 for (Object b : equivClass) {
113 if (!a.equals(b)) {
114 throw new Exception("Should be equal but not: " +
115 a + " :: " + b);
116 }
117 }
118 for (Object[] equivClass2 : equivalenceClasses) {
119 if (equivClass2 == equivClass)
120 continue;
121 for (Object b : equivClass2) {
122 if (a.equals(b)) {
123 throw new Exception("Should not be equal: " +
124 a + " :: " + b);
125 }
126 }
127 }
128 }
129 }
130
131 System.out.println("TEST PASSED");
132 }
133 }