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Java > Open Source Codes > org > jfree > chart > labels > junit > SymbolicXYItemLabelGeneratorTests


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  * SymbolicXYItemLabelGeneratorTests.java
29  * --------------------------------------
30  * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: SymbolicXYItemLabelGeneratorTests.java,v 1.1.2.1 2006/10/03 15:41:37 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 13-Aug-2003 : Version 1 (DG);
40  *
41  */
42
43 package org.jfree.chart.labels.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.chart.labels.SymbolicXYItemLabelGenerator;
57
58 /**
59  * Tests for the {@link SymbolicXYItemLabelGenerator} class.
60  */
61 public class SymbolicXYItemLabelGeneratorTests 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(SymbolicXYItemLabelGeneratorTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */
77     public SymbolicXYItemLabelGeneratorTests(String JavaDoc name) {
78         super(name);
79     }
80
81     /**
82      * Tests the equals method.
83      */
84     public void testEquals() {
85         SymbolicXYItemLabelGenerator g1 = new SymbolicXYItemLabelGenerator();
86         SymbolicXYItemLabelGenerator g2 = new SymbolicXYItemLabelGenerator();
87         assertTrue(g1.equals(g2));
88         assertTrue(g2.equals(g1));
89     }
90     
91     /**
92      * Confirm that cloning works.
93      */
94     public void testCloning() {
95         SymbolicXYItemLabelGenerator g1 = new SymbolicXYItemLabelGenerator();
96         SymbolicXYItemLabelGenerator g2 = null;
97         try {
98             g2 = (SymbolicXYItemLabelGenerator) g1.clone();
99         }
100         catch (CloneNotSupportedException JavaDoc e) {
101             System.err.println("Failed to clone.");
102         }
103         assertTrue(g1 != g2);
104         assertTrue(g1.getClass() == g2.getClass());
105         assertTrue(g1.equals(g2));
106     }
107
108     /**
109      * Serialize an instance, restore it, and check for equality.
110      */
111     public void testSerialization() {
112         SymbolicXYItemLabelGenerator g1 = new SymbolicXYItemLabelGenerator();
113         SymbolicXYItemLabelGenerator g2 = null;
114
115         try {
116             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
117             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
118             out.writeObject(g1);
119             out.close();
120
121             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
122                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
123             );
124             g2 = (SymbolicXYItemLabelGenerator) in.readObject();
125             in.close();
126         }
127         catch (Exception JavaDoc e) {
128             System.out.println(e.toString());
129         }
130         assertEquals(g1, g2);
131     }
132
133 }
134
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