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Java > Open Source Codes > org > jfree > data > junit > PieDatasetTests


1 /* ======================================
2  * JFreeChart : a free Java chart library
3  * ======================================
4  *
5  * Project Info: http://www.jfree.org/jfreechart/index.html
6  * Project Lead: David Gilbert (david.gilbert@object-refinery.com);
7  *
8  * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
9  *
10  * This library is free software; you can redistribute it and/or modify it under the terms
11  * of the GNU Lesser General Public License as published by the Free Software Foundation;
12  * either version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
15  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16  * See the GNU Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public License along with this
19  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20  * Boston, MA 02111-1307, USA.
21  *
22  * --------------------
23  * PieDatasetTests.java
24  * --------------------
25  * (C) Copyright 2003 by Object Refinery Limited and Contributors.
26  *
27  * Original Author: David Gilbert (for Object Refinery Limited);
28  * Contributor(s): -;
29  *
30  * $Id: PieDatasetTests.java,v 1.1 2003/08/20 11:18:31 mungady Exp $
31  *
32  * Changes
33  * -------
34  * 18-Aug-2003 : Version 1 (DG);
35  *
36  */
37
38 package org.jfree.data.junit;
39
40 import java.io.ByteArrayInputStream JavaDoc;
41 import java.io.ByteArrayOutputStream JavaDoc;
42 import java.io.ObjectInput JavaDoc;
43 import java.io.ObjectInputStream JavaDoc;
44 import java.io.ObjectOutput JavaDoc;
45 import java.io.ObjectOutputStream JavaDoc;
46
47 import junit.framework.Test;
48 import junit.framework.TestCase;
49 import junit.framework.TestSuite;
50
51 import org.jfree.data.DefaultPieDataset;
52
53 /**
54  * Tests for the {@link PieDataset} class.
55  *
56  * @author David Gilbert
57  */
58 public class PieDatasetTests extends TestCase {
59
60     /**
61      * Returns the tests as a test suite.
62      *
63      * @return the test suite.
64      */
65     public static Test suite() {
66         return new TestSuite(PieDatasetTests.class);
67     }
68
69     /**
70      * Constructs a new set of tests.
71      *
72      * @param name the name of the tests.
73      */
74     public PieDatasetTests(String JavaDoc name) {
75         super(name);
76     }
77
78     /**
79      * Confirm that cloning works.
80      */
81     public void testCloning() {
82         DefaultPieDataset d1 = new DefaultPieDataset();
83         d1.setValue("V1", new Integer JavaDoc(1));
84         d1.setValue("V2", null);
85         d1.setValue("V3", new Integer JavaDoc(3));
86         DefaultPieDataset d2 = null;
87         try {
88             d2 = (DefaultPieDataset) d1.clone();
89         }
90         catch (CloneNotSupportedException JavaDoc e) {
91             System.err.println("DefaultPieDatasetTests.testCloning: failed to clone.");
92         }
93         assertTrue(d1 != d2);
94         assertTrue(d1.getClass() == d2.getClass());
95         assertTrue(d1.equals(d2));
96     }
97
98     /**
99      * Serialize an instance, restore it, and check for equality.
100      */
101     public void testSerialization() {
102
103         DefaultPieDataset d1 = new DefaultPieDataset();
104         d1.setValue("C1", new Double JavaDoc(234.2));
105         d1.setValue("C2", null);
106         d1.setValue("C3", new Double JavaDoc(345.9));
107         d1.setValue("C4", new Double JavaDoc(452.7));
108
109         DefaultPieDataset d2 = null;
110
111         try {
112             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
113             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
114             out.writeObject(d1);
115             out.close();
116
117             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(new ByteArrayInputStream JavaDoc(buffer.toByteArray()));
118             d2 = (DefaultPieDataset) in.readObject();
119             in.close();
120         }
121         catch (Exception JavaDoc e) {
122             System.out.println(e.toString());
123         }
124         assertEquals(d1, d2);
125
126     }
127
128 }
129
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