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 * XYDataItemTests.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: XYDataItemTests.java,v 1.3 2005/03/15 12:43:47 mungady Exp $
35 *
36 * Changes
37 * -------
38 * 23-Dec-2003 : Version 1 (DG);
39 *
40 */
41
42 package org.jfree.data.xy.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.data.xy.XYDataItem;
56
57 /**
58 * Tests for the {@link XYDataItem} class.
59 */
60 public class XYDataItemTests 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(XYDataItemTests.class);
69 }
70
71 /**
72 * Constructs a new set of tests.
73 *
74 * @param name the name of the tests.
75 */
76 public XYDataItemTests(String name) {
77 super(name);
78 }
79
80 /**
81 * Confirm that the equals method can distinguish all the required fields.
82 */
83 public void testEquals() {
84
85 XYDataItem i1 = new XYDataItem(1.0, 1.1);
86 XYDataItem i2 = new XYDataItem(1.0, 1.1);
87 assertTrue(i1.equals(i2));
88 assertTrue(i2.equals(i1));
89
90 i1.setY(new Double(9.9));
91 assertFalse(i1.equals(i2));
92
93 i2.setY(new Double(9.9));
94 assertTrue(i1.equals(i2));
95
96 }
97
98 /**
99 * Confirm that cloning works.
100 */
101 public void testCloning() {
102 XYDataItem i1 = new XYDataItem(1.0, 1.1);
103 XYDataItem i2 = null;
104 try {
105 i2 = (XYDataItem) i1.clone();
106 }
107 catch (CloneNotSupportedException e) {
108 System.err.println("XYDataItemTests.testCloning: failed to clone.");
109 }
110 assertTrue(i1 != i2);
111 assertTrue(i1.getClass() == i2.getClass());
112 assertTrue(i1.equals(i2));
113 }
114
115 /**
116 * Serialize an instance, restore it, and check for equality.
117 */
118 public void testSerialization() {
119
120 XYDataItem i1 = new XYDataItem(1.0, 1.1);
121 XYDataItem i2 = null;
122
123 try {
124 ByteArrayOutputStream buffer = new ByteArrayOutputStream();
125 ObjectOutput out = new ObjectOutputStream(buffer);
126 out.writeObject(i1);
127 out.close();
128
129 ObjectInput in = new ObjectInputStream(
130 new ByteArrayInputStream(buffer.toByteArray())
131 );
132 i2 = (XYDataItem) in.readObject();
133 in.close();
134 }
135 catch (Exception e) {
136 System.out.println(e.toString());
137 }
138 assertEquals(i1, i2);
139
140 }
141
142 }
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