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Java > Open Source Codes > org > jfree > chart > renderer > category > junit > CategoryStepRendererTests


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  * CategoryStepRendererTests.java
29  * ------------------------------
30  * (C) Copyright 2005, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: CategoryStepRendererTests.java,v 1.1.2.1 2006/10/03 15:41:35 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 08-Mar-2005 : Version 1 (DG);
40  *
41  */
42
43 package org.jfree.chart.renderer.category.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.renderer.category.CategoryStepRenderer;
57
58 /**
59  * Tests for the {@link CategoryStepRenderer} class.
60  */
61 public class CategoryStepRendererTests 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(CategoryStepRendererTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */
77     public CategoryStepRendererTests(String JavaDoc name) {
78         super(name);
79     }
80
81     /**
82      * Check that the equals() method distinguishes all fields.
83      */
84     public void testEquals() {
85         CategoryStepRenderer r1 = new CategoryStepRenderer(false);
86         CategoryStepRenderer r2 = new CategoryStepRenderer(false);
87         assertEquals(r1, r2);
88         
89         r1 = new CategoryStepRenderer(true);
90         assertFalse(r1.equals(r2));
91         r2 = new CategoryStepRenderer(true);
92         assertTrue(r1.equals(r2));
93     }
94     
95     /**
96      * Confirm that cloning works.
97      */
98     public void testCloning() {
99         CategoryStepRenderer r1 = new CategoryStepRenderer(false);
100         CategoryStepRenderer r2 = null;
101         try {
102             r2 = (CategoryStepRenderer) r1.clone();
103         }
104         catch (CloneNotSupportedException JavaDoc e) {
105             System.err.println("Failed to clone.");
106         }
107         assertTrue(r1 != r2);
108         assertTrue(r1.getClass() == r2.getClass());
109         assertTrue(r1.equals(r2));
110     }
111
112     /**
113      * Serialize an instance, restore it, and check for equality.
114      */
115     public void testSerialization() {
116
117         CategoryStepRenderer r1 = new CategoryStepRenderer();
118         CategoryStepRenderer r2 = null;
119
120         try {
121             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
122             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
123             out.writeObject(r1);
124             out.close();
125
126             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
127                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
128             );
129             r2 = (CategoryStepRenderer) in.readObject();
130             in.close();
131         }
132         catch (Exception JavaDoc e) {
133             System.out.println(e.toString());
134         }
135         assertEquals(r1, r2);
136
137     }
138     
139 }
140
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