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Java > Open Source Codes > org > jfree > data > xy > junit > YIntervalTests


1 /* ===========================================================
2  * JFreeChart : a free chart library for the Java(tm) platform
3  * ===========================================================
4  *
5  * (C) Copyright 2000-2006, 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  * YIntervalTests.java
29  * -------------------
30  * (C) Copyright 2006, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: YIntervalTests.java,v 1.1.2.2 2006/10/21 05:11:04 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 20-Oct-2006 : Version 1 (DG);
40  *
41  */
42
43 package org.jfree.data.xy.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.data.xy.YInterval;
57
58 /**
59  * Tests for the {@link YInterval} class.
60  */
61 public class YIntervalTests 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(YIntervalTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */
77     public YIntervalTests(String JavaDoc name) {
78         super(name);
79     }
80
81     /**
82      * Confirm that the equals method can distinguish all the required fields.
83      */
84     public void testEquals() {
85         YInterval i1 = new YInterval(1.0, 0.5, 1.5);
86         YInterval i2 = new YInterval(1.0, 0.5, 1.5);
87         assertEquals(i1, i2);
88         
89         i1 = new YInterval(1.1, 0.5, 1.5);
90         assertFalse(i1.equals(i2));
91         i2 = new YInterval(1.1, 0.5, 1.5);
92         assertTrue(i1.equals(i2));
93
94         i1 = new YInterval(1.1, 0.55, 1.5);
95         assertFalse(i1.equals(i2));
96         i2 = new YInterval(1.1, 0.55, 1.5);
97         assertTrue(i1.equals(i2));
98     
99         i1 = new YInterval(1.1, 0.55, 1.55);
100         assertFalse(i1.equals(i2));
101         i2 = new YInterval(1.1, 0.55, 1.55);
102         assertTrue(i1.equals(i2));
103     }
104
105     /**
106      * This class is immutable.
107      */
108     public void testCloning() {
109         YInterval i1 = new YInterval(1.0, 0.5, 1.5);
110         assertFalse(i1 instanceof Cloneable JavaDoc);
111     }
112
113     /**
114      * Serialize an instance, restore it, and check for equality.
115      */
116     public void testSerialization() {
117         YInterval i1 = new YInterval(1.0, 0.5, 1.5);
118         YInterval i2 = null;
119         
120         try {
121             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
122             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
123             out.writeObject(i1);
124             out.close();
125
126             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
127                     new ByteArrayInputStream JavaDoc(buffer.toByteArray()));
128             i2 = (YInterval) in.readObject();
129             in.close();
130         }
131         catch (Exception JavaDoc e) {
132             e.printStackTrace();
133         }
134         assertEquals(i1, i2);
135     }
136     
137 }
138
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