1 /*
2 * Copyright (c) 2012, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * Copyright (c) 2011-2012, Stephen Colebourne & Michael Nascimento Santos
28 *
29 * All rights reserved.
30 *
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions are met:
33 *
34 * * Redistributions of source code must retain the above copyright notice,
35 * this list of conditions and the following disclaimer.
36 *
37 * * Redistributions in binary form must reproduce the above copyright notice,
38 * this list of conditions and the following disclaimer in the documentation
39 * and/or other materials provided with the distribution.
40 *
41 * * Neither the name of JSR-310 nor the names of its contributors
42 * may be used to endorse or promote products derived from this software
43 * without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
46 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
47 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
48 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
49 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
50 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
51 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
52 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
53 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
54 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
55 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
56 */
57 package tck.java.time;
58
59 import static org.testng.Assert.assertEquals;
60 import static org.testng.Assert.assertSame;
61
62 import java.io.ByteArrayInputStream;
63 import java.io.ByteArrayOutputStream;
64 import java.io.DataInputStream;
65 import java.io.IOException;
66 import java.io.ObjectInputStream;
67 import java.io.ObjectOutputStream;
68 import java.io.ObjectStreamConstants;
69 import java.io.Serializable;
70 import java.lang.reflect.Field;
71
72 /**
73 * Base test class.
74 */
75 public abstract class AbstractTCKTest {
76
77 protected static boolean isIsoLeap(long year) {
78 if (year % 4 != 0) {
79 return false;
80 }
81 if (year % 100 == 0 && year % 400 != 0) {
82 return false;
83 }
84 return true;
85 }
86
87 protected static void assertSerializable(Object object) throws IOException, ClassNotFoundException {
88 assertEquals(object instanceof Serializable, true);
89 Object deserializedObject = writeThenRead(object);
90 assertEquals(deserializedObject, object);
91 }
92
93 protected static void assertSerializableSame(Object object) throws IOException, ClassNotFoundException {
94 assertEquals(object instanceof Serializable, true);
95 Object deserializedObject = writeThenRead(object);
96 assertSame(deserializedObject, object);
97 }
98
99 private static Object writeThenRead(Object object) throws IOException, ClassNotFoundException {
100 ByteArrayOutputStream baos = new ByteArrayOutputStream();
101 try (ObjectOutputStream oos = new ObjectOutputStream(baos) ) {
102 oos.writeObject(object);
103 }
104 try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(baos.toByteArray()))) {
105 return ois.readObject();
106 }
107 }
108
109 protected static void assertSerializedBySer(Object object, byte[] expectedBytes, byte[]... matches) throws Exception {
110 String serClass = object.getClass().getPackage().getName() + ".Ser";
111 Class<?> serCls = Class.forName(serClass);
112 Field field = serCls.getDeclaredField("serialVersionUID");
113 field.setAccessible(true);
114 long serVer = (Long) field.get(null);
115 ByteArrayOutputStream baos = new ByteArrayOutputStream();
116 try (ObjectOutputStream oos = new ObjectOutputStream(baos) ) {
117 oos.writeObject(object);
118 }
119 byte[] bytes = baos.toByteArray();
120 ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
121 try (DataInputStream dis = new DataInputStream(bais)) {
122 assertEquals(dis.readShort(), ObjectStreamConstants.STREAM_MAGIC);
123 assertEquals(dis.readShort(), ObjectStreamConstants.STREAM_VERSION);
124 assertEquals(dis.readByte(), ObjectStreamConstants.TC_OBJECT);
125 assertEquals(dis.readByte(), ObjectStreamConstants.TC_CLASSDESC);
126 assertEquals(dis.readUTF(), serClass);
127 assertEquals(dis.readLong(), serVer);
128 assertEquals(dis.readByte(), ObjectStreamConstants.SC_EXTERNALIZABLE | ObjectStreamConstants.SC_BLOCK_DATA);
129 assertEquals(dis.readShort(), 0); // number of fields
130 assertEquals(dis.readByte(), ObjectStreamConstants.TC_ENDBLOCKDATA); // end of classdesc
131 assertEquals(dis.readByte(), ObjectStreamConstants.TC_NULL); // no superclasses
132 if (expectedBytes.length < 256) {
133 assertEquals(dis.readByte(), ObjectStreamConstants.TC_BLOCKDATA);
134 assertEquals(dis.readUnsignedByte(), expectedBytes.length);
135 } else {
136 assertEquals(dis.readByte(), ObjectStreamConstants.TC_BLOCKDATALONG);
137 assertEquals(dis.readInt(), expectedBytes.length);
138 }
139 byte[] input = new byte[expectedBytes.length];
140 dis.readFully(input);
141 assertEquals(input, expectedBytes);
142 if (matches.length > 0) {
143 for (byte[] match : matches) {
144 boolean matched = false;
145 while (matched == false) {
146 try {
147 dis.mark(1000);
148 byte[] possible = new byte[match.length];
149 dis.readFully(possible);
150 assertEquals(possible, match);
151 matched = true;
152 } catch (AssertionError ex) {
153 dis.reset();
154 dis.readByte(); // ignore
155 }
156 }
157 }
158 } else {
159 assertEquals(dis.readByte(), ObjectStreamConstants.TC_ENDBLOCKDATA); // end of blockdata
160 assertEquals(dis.read(), -1);
161 }
162 }
163 }
164
165 }