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 * IntervalBarRendererTests.java
28 * -----------------------------
29 * (C) Copyright 2003-2005, by Object Refinery Limited and Contributors.
30 *
31 * Original Author: David Gilbert (for Object Refinery Limited);
32 * Contributor(s): -;
33 *
34 * $Id: IntervalBarRendererTests.java,v 1.3 2005/03/08 10:35:26 mungady Exp $
35 *
36 * Changes
37 * -------
38 * 25-Mar-2003 : 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.IntervalBarRenderer;
56
57 /**
58 * Tests for the {@link IntervalBarRenderer} class.
59 */
60 public class IntervalBarRendererTests 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(IntervalBarRendererTests.class);
69 }
70
71 /**
72 * Constructs a new set of tests.
73 *
74 * @param name the name of the tests.
75 */
76 public IntervalBarRendererTests(String name) {
77 super(name);
78 }
79
80 /**
81 * Problem that the equals() method distinguishes all fields.
82 */
83 public void testEquals() {
84 IntervalBarRenderer r1 = new IntervalBarRenderer();
85 IntervalBarRenderer r2 = new IntervalBarRenderer();
86 assertEquals(r1, r2);
87 }
88
89 /**
90 * Two objects that are equal are required to return the same hashCode.
91 */
92 public void testHashcode() {
93 IntervalBarRenderer r1 = new IntervalBarRenderer();
94 IntervalBarRenderer r2 = new IntervalBarRenderer();
95 assertTrue(r1.equals(r2));
96 int h1 = r1.hashCode();
97 int h2 = r2.hashCode();
98 assertEquals(h1, h2);
99 }
100
101 /**
102 * Confirm that cloning works.
103 */
104 public void testCloning() {
105 IntervalBarRenderer r1 = new IntervalBarRenderer();
106 IntervalBarRenderer r2 = null;
107 try {
108 r2 = (IntervalBarRenderer) r1.clone();
109 }
110 catch (CloneNotSupportedException e) {
111 System.err.println("Failed to clone.");
112 }
113 assertTrue(r1 != r2);
114 assertTrue(r1.getClass() == r2.getClass());
115 assertTrue(r1.equals(r2));
116 }
117
118 /**
119 * Serialize an instance, restore it, and check for equality.
120 */
121 public void testSerialization() {
122
123 IntervalBarRenderer r1 = new IntervalBarRenderer();
124 IntervalBarRenderer r2 = null;
125
126 try {
127 ByteArrayOutputStream buffer = new ByteArrayOutputStream();
128 ObjectOutput out = new ObjectOutputStream(buffer);
129 out.writeObject(r1);
130 out.close();
131
132 ObjectInput in = new ObjectInputStream(
133 new ByteArrayInputStream(buffer.toByteArray())
134 );
135 r2 = (IntervalBarRenderer) in.readObject();
136 in.close();
137 }
138 catch (Exception e) {
139 System.out.println(e.toString());
140 }
141 assertEquals(r1, r2);
142
143 }
144
145 }
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