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Java > Open Source Codes > org > jfree > data > time > junit > TimeSeriesDataItemTests


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  * TimeSeriesDataItemTests.java
28  * ----------------------------
29  * (C) Copyright 2003-2005, by Object Refinery Limited.
30  *
31  * Original Author: David Gilbert (for Object Refinery Limited);
32  * Contributor(s): -;
33  *
34  * $Id: TimeSeriesDataItemTests.java,v 1.3 2005/03/11 14:37:23 mungady Exp $
35  *
36  * Changes
37  * -------
38  * 13-Mar-2003 : Version 1 (DG);
39  *
40  */
41
42 package org.jfree.data.time.junit;
43
44 import java.io.ByteArrayInputStream JavaDoc;
45 import java.io.ByteArrayOutputStream JavaDoc;
46 import java.io.ObjectInput JavaDoc;
47 import java.io.ObjectInputStream JavaDoc;
48 import java.io.ObjectOutput JavaDoc;
49 import java.io.ObjectOutputStream JavaDoc;
50
51 import junit.framework.Test;
52 import junit.framework.TestCase;
53 import junit.framework.TestSuite;
54
55 import org.jfree.data.time.Day;
56 import org.jfree.data.time.TimeSeriesDataItem;
57
58 /**
59  * Tests for the {@link TimeSeriesDataItem} class.
60  */
61 public class TimeSeriesDataItemTests 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(TimeSeriesDataItemTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */
77     public TimeSeriesDataItemTests(String JavaDoc name) {
78         super(name);
79     }
80
81     /**
82      * Common test setup.
83      */
84     protected void setUp() {
85         // no setup
86 }
87
88     /**
89      * Test that an instance is equal to itself.
90      *
91      * SourceForge Bug ID: 558850.
92      */
93     public void testEqualsSelf() {
94         TimeSeriesDataItem item = new TimeSeriesDataItem(
95             new Day(23, 9, 2001), 99.7
96         );
97         assertTrue(item.equals(item));
98     }
99
100     /**
101      * Test the equals() method.
102      */
103     public void testEquals() {
104         TimeSeriesDataItem item1 = new TimeSeriesDataItem(
105             new Day(23, 9, 2001), 99.7
106         );
107         TimeSeriesDataItem item2 = new TimeSeriesDataItem(
108             new Day(23, 9, 2001), 99.7
109         );
110         assertTrue(item1.equals(item2));
111         assertTrue(item2.equals(item1));
112         
113         item1.setValue(new Integer JavaDoc(5));
114         assertFalse(item1.equals(item2));
115         item2.setValue(new Integer JavaDoc(5));
116         assertTrue(item1.equals(item2));
117     }
118
119     /**
120      * Serialize an instance, restore it, and check for equality.
121      */
122     public void testSerialization() {
123
124         TimeSeriesDataItem item1 = new TimeSeriesDataItem(
125             new Day(23, 9, 2001), 99.7
126         );
127         TimeSeriesDataItem item2 = null;
128
129         try {
130             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
131             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
132             out.writeObject(item1);
133             out.close();
134
135             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
136                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
137             );
138             item2 = (TimeSeriesDataItem) in.readObject();
139             in.close();
140         }
141         catch (Exception JavaDoc e) {
142             System.out.println(e.toString());
143         }
144         assertEquals(item1, item2);
145
146     }
147
148 }
149
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