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Java > Open Source Codes > org > jfree > chart > entity > junit > LegendItemEntityTests


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  * LegendItemEntityTests.java
29  * --------------------------
30  * (C) Copyright 2004, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: LegendItemEntityTests.java,v 1.1.2.1 2006/10/03 15:41:25 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 20-May-2004 : Version 1 (DG);
40  *
41  */
42
43 package org.jfree.chart.entity.junit;
44
45 import java.awt.geom.Rectangle2D JavaDoc;
46 import java.io.ByteArrayInputStream JavaDoc;
47 import java.io.ByteArrayOutputStream JavaDoc;
48 import java.io.ObjectInput JavaDoc;
49 import java.io.ObjectInputStream JavaDoc;
50 import java.io.ObjectOutput JavaDoc;
51 import java.io.ObjectOutputStream JavaDoc;
52
53 import junit.framework.Test;
54 import junit.framework.TestCase;
55 import junit.framework.TestSuite;
56
57 import org.jfree.chart.entity.LegendItemEntity;
58
59 /**
60  * Tests for the {@link LegendItemEntity} class.
61  */
62 public class LegendItemEntityTests extends TestCase {
63
64     /**
65      * Returns the tests as a test suite.
66      *
67      * @return The test suite.
68      */
69     public static Test suite() {
70         return new TestSuite(LegendItemEntityTests.class);
71     }
72
73     /**
74      * Constructs a new set of tests.
75      *
76      * @param name the name of the tests.
77      */
78     public LegendItemEntityTests(String JavaDoc name) {
79         super(name);
80     }
81
82     /**
83      * Confirm that the equals method can distinguish all the required fields.
84      */
85     public void testEquals() {
86         LegendItemEntity e1 = new LegendItemEntity(
87             new Rectangle2D.Double JavaDoc(1.0, 2.0, 3.0, 4.0)
88         );
89         LegendItemEntity e2 = new LegendItemEntity(
90             new Rectangle2D.Double JavaDoc(1.0, 2.0, 3.0, 4.0)
91         );
92         assertTrue(e1.equals(e2));
93         
94         e1.setArea(new Rectangle2D.Double JavaDoc(4.0, 3.0, 2.0, 1.0));
95         assertFalse(e1.equals(e2));
96         e2.setArea(new Rectangle2D.Double JavaDoc(4.0, 3.0, 2.0, 1.0));
97         assertTrue(e1.equals(e2));
98
99         e1.setToolTipText("New ToolTip");
100         assertFalse(e1.equals(e2));
101         e2.setToolTipText("New ToolTip");
102         assertTrue(e1.equals(e2));
103
104         e1.setURLText("New URL");
105         assertFalse(e1.equals(e2));
106         e2.setURLText("New URL");
107         assertTrue(e1.equals(e2));
108     }
109
110     /**
111      * Confirm that cloning works.
112      */
113     public void testCloning() {
114         LegendItemEntity e1 = new LegendItemEntity(
115             new Rectangle2D.Double JavaDoc(1.0, 2.0, 3.0, 4.0)
116         );
117         LegendItemEntity e2 = null;
118         
119         try {
120             e2 = (LegendItemEntity) e1.clone();
121         }
122         catch (CloneNotSupportedException JavaDoc e) {
123             System.err.println("Failed to clone.");
124         }
125         assertTrue(e1 != e2);
126         assertTrue(e1.getClass() == e2.getClass());
127         assertTrue(e1.equals(e2));
128     }
129
130     /**
131      * Serialize an instance, restore it, and check for equality.
132      */
133     public void testSerialization() {
134         LegendItemEntity e1 = new LegendItemEntity(
135             new Rectangle2D.Double JavaDoc(1.0, 2.0, 3.0, 4.0)
136         );
137         LegendItemEntity e2 = null;
138         try {
139             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
140             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
141             out.writeObject(e1);
142             out.close();
143
144             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
145                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
146             );
147             e2 = (LegendItemEntity) in.readObject();
148             in.close();
149         }
150         catch (Exception JavaDoc e) {
151             System.out.println(e.toString());
152         }
153         assertEquals(e1, e2);
154     }
155
156 }
157
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