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
61 import java.io.ByteArrayInputStream;
62 import java.io.ByteArrayOutputStream;
63 import java.io.DataInputStream;
64 import java.io.IOException;
65 import java.io.ObjectInputStream;
66 import java.io.ObjectOutputStream;
67 import java.io.ObjectStreamConstants;
68 import java.io.Serializable;
69 import java.lang.reflect.Field;
70
71 /**
72 * Base test class.
73 */
74 public abstract class AbstractTCKTest {
75
76 protected static boolean isIsoLeap(long year) {
77 if (year % 4 != 0) {
78 return false;
79 }
80 if (year % 100 == 0 && year % 400 != 0) {
81 return false;
82 }
83 return true;
84 }
85
86 protected static void assertSerializable(Object object) throws IOException, ClassNotFoundException {
87 assertEquals(object instanceof Serializable, true);
88 Object deserializedObject = writeThenRead(object);
89 assertEquals(deserializedObject, object);
90 }
91
92 private static Object writeThenRead(Object object) throws IOException, ClassNotFoundException {
93 ByteArrayOutputStream baos = new ByteArrayOutputStream();
94 try (ObjectOutputStream oos = new ObjectOutputStream(baos) ) {
95 oos.writeObject(object);
96 }
97 try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(baos.toByteArray()))) {
98 return ois.readObject();
99 }
100 }
101
102 protected static void assertSerializedBySer(Object object, byte[] expectedBytes, byte[]... matches) throws Exception {
103 String serClass = object.getClass().getPackage().getName() + ".Ser";
104 Class<?> serCls = Class.forName(serClass);
105 Field field = serCls.getDeclaredField("serialVersionUID");
106 field.setAccessible(true);
107 long serVer = (Long) field.get(null);
108 ByteArrayOutputStream baos = new ByteArrayOutputStream();
109 try (ObjectOutputStream oos = new ObjectOutputStream(baos) ) {
110 oos.writeObject(object);
111 }
112 byte[] bytes = baos.toByteArray();
113 ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
114 try (DataInputStream dis = new DataInputStream(bais)) {
115 assertEquals(dis.readShort(), ObjectStreamConstants.STREAM_MAGIC);
116 assertEquals(dis.readShort(), ObjectStreamConstants.STREAM_VERSION);
117 assertEquals(dis.readByte(), ObjectStreamConstants.TC_OBJECT);
118 assertEquals(dis.readByte(), ObjectStreamConstants.TC_CLASSDESC);
119 assertEquals(dis.readUTF(), serClass);
120 assertEquals(dis.readLong(), serVer);
121 assertEquals(dis.readByte(), ObjectStreamConstants.SC_EXTERNALIZABLE | ObjectStreamConstants.SC_BLOCK_DATA);
122 assertEquals(dis.readShort(), 0); // number of fields
123 assertEquals(dis.readByte(), ObjectStreamConstants.TC_ENDBLOCKDATA); // end of classdesc
124 assertEquals(dis.readByte(), ObjectStreamConstants.TC_NULL); // no superclasses
125 if (expectedBytes.length < 256) {
126 assertEquals(dis.readByte(), ObjectStreamConstants.TC_BLOCKDATA);
127 assertEquals(dis.readUnsignedByte(), expectedBytes.length);
128 } else {
129 assertEquals(dis.readByte(), ObjectStreamConstants.TC_BLOCKDATALONG);
130 assertEquals(dis.readInt(), expectedBytes.length);
131 }
132 byte[] input = new byte[expectedBytes.length];
133 dis.readFully(input);
134 assertEquals(input, expectedBytes);
135 if (matches.length > 0) {
136 for (byte[] match : matches) {
137 boolean matched = false;
138 while (matched == false) {
139 try {
140 dis.mark(1000);
141 byte[] possible = new byte[match.length];
142 dis.readFully(possible);
143 assertEquals(possible, match);
144 matched = true;
145 } catch (AssertionError ex) {
146 dis.reset();
147 dis.readByte(); // ignore
148 }
149 }
150 }
151 } else {
152 assertEquals(dis.readByte(), ObjectStreamConstants.TC_ENDBLOCKDATA); // end of blockdata
153 assertEquals(dis.read(), -1);
154 }
155 }
156 }
157
158 }