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Java > Open Source Codes > org > jfree > data > general > junit > DefaultKeyedValueDatasetTests


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  * DefaultKeyedValueDatasetTests.java
29  * ----------------------------------
30  * (C) Copyright 2003-2005, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: DefaultKeyedValueDatasetTests.java,v 1.1.2.1 2006/10/03 15:41:43 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 18-Aug-2003 : Version 1 (DG);
40  *
41  */
42
43 package org.jfree.data.general.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.general.DefaultKeyedValueDataset;
57
58 /**
59  * Tests for the {@link DefaultKeyedValueDataset} class.
60  */
61 public class DefaultKeyedValueDatasetTests 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(DefaultKeyedValueDatasetTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */
77     public DefaultKeyedValueDatasetTests(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         DefaultKeyedValueDataset d1
87             = new DefaultKeyedValueDataset("Test", new Double JavaDoc(45.5));
88         DefaultKeyedValueDataset d2
89             = new DefaultKeyedValueDataset("Test", new Double JavaDoc(45.5));
90         assertTrue(d1.equals(d2));
91         assertTrue(d2.equals(d1));
92
93         d1 = new DefaultKeyedValueDataset("Test 1", new Double JavaDoc(45.5));
94         d2 = new DefaultKeyedValueDataset("Test 2", new Double JavaDoc(45.5));
95         assertFalse(d1.equals(d2));
96
97         d1 = new DefaultKeyedValueDataset("Test", new Double JavaDoc(45.5));
98         d2 = new DefaultKeyedValueDataset("Test", new Double JavaDoc(45.6));
99         assertFalse(d1.equals(d2));
100
101     }
102
103     /**
104      * Confirm that cloning works.
105      */
106     public void testCloning() {
107         DefaultKeyedValueDataset d1
108             = new DefaultKeyedValueDataset("Test", new Double JavaDoc(45.5));
109         DefaultKeyedValueDataset d2 = null;
110         try {
111             d2 = (DefaultKeyedValueDataset) d1.clone();
112         }
113         catch (CloneNotSupportedException JavaDoc e) {
114             System.err.println("Failed to clone.");
115         }
116         assertTrue(d1 != d2);
117         assertTrue(d1.getClass() == d2.getClass());
118         assertTrue(d1.equals(d2));
119     }
120     
121     /**
122      * Confirm that the clone is independent of the original.
123      */
124     public void testCloneIndependence() {
125         DefaultKeyedValueDataset d1
126             = new DefaultKeyedValueDataset("Key", new Double JavaDoc(10.0));
127         DefaultKeyedValueDataset d2 = null;
128         try {
129             d2 = (DefaultKeyedValueDataset) d1.clone();
130         }
131         catch (CloneNotSupportedException JavaDoc e) {
132             System.err.println("Failed to clone.");
133         }
134         assertTrue(d1.equals(d2));
135         d2.updateValue(new Double JavaDoc(99.9));
136         assertFalse(d1.equals(d2));
137         d2.updateValue(new Double JavaDoc(10.0));
138         assertTrue(d1.equals(d2));
139     }
140
141     /**
142      * Serialize an instance, restore it, and check for equality.
143      */
144     public void testSerialization() {
145
146         DefaultKeyedValueDataset d1
147             = new DefaultKeyedValueDataset("Test", new Double JavaDoc(25.3));
148         DefaultKeyedValueDataset d2 = null;
149
150         try {
151             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
152             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
153             out.writeObject(d1);
154             out.close();
155
156             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
157                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
158             );
159             d2 = (DefaultKeyedValueDataset) in.readObject();
160             in.close();
161         }
162         catch (Exception JavaDoc e) {
163             System.out.println(e.toString());
164         }
165         assertEquals(d1, d2);
166     }
167
168 }
169
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