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Java > Open Source Codes > org > jfree > data > junit > KeyedObjectTests


1 /* ===========================================================
2  * JFreeChart : a free chart library for the Java(tm) platform
3  * ===========================================================
4  *
5  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
6  *
7  * Project Info: http://www.jfree.org/jfreechart/index.html
8  *
9  * This library is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU Lesser General Public License as published by
11  * the Free Software Foundation; either version 2.1 of the License, or
12  * (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17  * License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22  * USA.
23  *
24  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25  * in the United States and other countries.]
26  *
27  * ---------------------
28  * KeyedObjectTests.java
29  * ---------------------
30  * (C) Copyright 2004, 2005, by Object Refinery Limited.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: KeyedObjectTests.java,v 1.1.2.1 2006/10/03 15:41:42 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 27-Jan-2004 : Version 1 (DG);
40  *
41  */
42
43 package org.jfree.data.junit;
44
45 import java.io.ByteArrayInputStream JavaDoc;
46 import java.io.ByteArrayOutputStream JavaDoc;
47 import java.io.ObjectInput JavaDoc;
48 import java.io.ObjectInputStream JavaDoc;
49 import java.io.ObjectOutput JavaDoc;
50 import java.io.ObjectOutputStream JavaDoc;
51
52 import junit.framework.Test;
53 import junit.framework.TestCase;
54 import junit.framework.TestSuite;
55
56 import org.jfree.data.KeyedObject;
57
58 /**
59  * Tests for the {@link KeyedObject} class.
60  */
61 public class KeyedObjectTests extends TestCase {
62
63     /**
64      * Returns the tests as a test suite.
65      *
66      * @return The test suite.
67      */
68     public static Test suite() {
69         return new TestSuite(KeyedObjectTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */
77     public KeyedObjectTests(String JavaDoc name) {
78         super(name);
79     }
80
81     /**
82      * Confirm that the equals method can distinguish all the required fields.
83      */
84     public void testEquals() {
85         
86         KeyedObject ko1 = new KeyedObject("Test", "Object");
87         KeyedObject ko2 = new KeyedObject("Test", "Object");
88         assertTrue(ko1.equals(ko2));
89         assertTrue(ko2.equals(ko1));
90
91         ko1 = new KeyedObject("Test 1", "Object");
92         ko2 = new KeyedObject("Test 2", "Object");
93         assertFalse(ko1.equals(ko2));
94
95         ko1 = new KeyedObject("Test", "Object 1");
96         ko2 = new KeyedObject("Test", "Object 2");
97         assertFalse(ko1.equals(ko2));
98
99     }
100
101     /**
102      * Confirm that cloning works.
103      */
104     public void testCloning() {
105         KeyedObject ko1 = new KeyedObject("Test", "Object");
106         KeyedObject ko2 = null;
107         try {
108             ko2 = (KeyedObject) ko1.clone();
109         }
110         catch (CloneNotSupportedException JavaDoc e) {
111             System.err.println("Failed to clone.");
112         }
113         assertTrue(ko1 != ko2);
114         assertTrue(ko1.getClass() == ko2.getClass());
115         assertTrue(ko1.equals(ko2));
116     }
117
118     /**
119      * Serialize an instance, restore it, and check for equality.
120      */
121     public void testSerialization() {
122
123         KeyedObject ko1 = new KeyedObject("Test", "Object");
124         KeyedObject ko2 = null;
125
126         try {
127             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
128             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
129             out.writeObject(ko1);
130             out.close();
131
132             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
133                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
134             );
135             ko2 = (KeyedObject) in.readObject();
136             in.close();
137         }
138         catch (Exception JavaDoc e) {
139             System.out.println(e.toString());
140         }
141         assertEquals(ko1, ko2);
142
143     }
144
145 }
146
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