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 License
20 * along with this library; if not, write to the Free Software Foundation,
21 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22 *
23 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
24 * in the United States and other countries.]
25 *
26 * ------------------------------
27 * CategoryStepRendererTests.java
28 * ------------------------------
29 * (C) Copyright 2005, by Object Refinery Limited and Contributors.
30 *
31 * Original Author: David Gilbert (for Object Refinery Limited);
32 * Contributor(s): -;
33 *
34 * $Id: CategoryStepRendererTests.java,v 1.1 2005/03/08 15:33:26 mungady Exp $
35 *
36 * Changes
37 * -------
38 * 08-Mar-2005 : Version 1 (DG);
39 *
40 */
41
42 package org.jfree.chart.renderer.category.junit;
43
44 import java.io.ByteArrayInputStream;
45 import java.io.ByteArrayOutputStream;
46 import java.io.ObjectInput;
47 import java.io.ObjectInputStream;
48 import java.io.ObjectOutput;
49 import java.io.ObjectOutputStream;
50
51 import junit.framework.Test;
52 import junit.framework.TestCase;
53 import junit.framework.TestSuite;
54
55 import org.jfree.chart.renderer.category.CategoryStepRenderer;
56
57 /**
58 * Tests for the {@link CategoryStepRenderer} class.
59 */
60 public class CategoryStepRendererTests extends TestCase {
61
62 /**
63 * Returns the tests as a test suite.
64 *
65 * @return The test suite.
66 */
67 public static Test suite() {
68 return new TestSuite(CategoryStepRendererTests.class);
69 }
70
71 /**
72 * Constructs a new set of tests.
73 *
74 * @param name the name of the tests.
75 */
76 public CategoryStepRendererTests(String name) {
77 super(name);
78 }
79
80 /**
81 * Check that the equals() method distinguishes all fields.
82 */
83 public void testEquals() {
84 CategoryStepRenderer r1 = new CategoryStepRenderer(false);
85 CategoryStepRenderer r2 = new CategoryStepRenderer(false);
86 assertEquals(r1, r2);
87
88 r1 = new CategoryStepRenderer(true);
89 assertFalse(r1.equals(r2));
90 r2 = new CategoryStepRenderer(true);
91 assertTrue(r1.equals(r2));
92 }
93
94 /**
95 * Confirm that cloning works.
96 */
97 public void testCloning() {
98 CategoryStepRenderer r1 = new CategoryStepRenderer(false);
99 CategoryStepRenderer r2 = null;
100 try {
101 r2 = (CategoryStepRenderer) r1.clone();
102 }
103 catch (CloneNotSupportedException e) {
104 System.err.println("Failed to clone.");
105 }
106 assertTrue(r1 != r2);
107 assertTrue(r1.getClass() == r2.getClass());
108 assertTrue(r1.equals(r2));
109 }
110
111 /**
112 * Serialize an instance, restore it, and check for equality.
113 */
114 public void testSerialization() {
115
116 CategoryStepRenderer r1 = new CategoryStepRenderer();
117 CategoryStepRenderer r2 = null;
118
119 try {
120 ByteArrayOutputStream buffer = new ByteArrayOutputStream();
121 ObjectOutput out = new ObjectOutputStream(buffer);
122 out.writeObject(r1);
123 out.close();
124
125 ObjectInput in = new ObjectInputStream(
126 new ByteArrayInputStream(buffer.toByteArray())
127 );
128 r2 = (CategoryStepRenderer) in.readObject();
129 in.close();
130 }
131 catch (Exception e) {
132 System.out.println(e.toString());
133 }
134 assertEquals(r1, r2);
135
136 }
137
138 }
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