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Java > Open Source Codes > org > jfree > chart > axis > junit > CategoryLabelWidthTypeTests


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
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  * CategoryLabelWidthTypeTests.java
29  * --------------------------------
30  * (C) Copyright 2004, 2005, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: CategoryLabelWidthTypeTests.java,v 1.1.2.1 2006/10/03 15:41:22 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 13-May-2004 : Version 1 (DG);
40  *
41  */

42
43 package org.jfree.chart.axis.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.chart.axis.CategoryLabelWidthType;
57
58 /**
59  * Tests for the {@link CategoryLabelWidthType} class.
60  */

61 public class CategoryLabelWidthTypeTests 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(CategoryLabelWidthTypeTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */

77     public CategoryLabelWidthTypeTests(String JavaDoc name) {
78         super(name);
79     }
80     
81     /**
82      * Confirm that the equals() method distinguishes the known values.
83      */

84     public void testEquals() {
85         assertEquals(
86             CategoryLabelWidthType.CATEGORY, CategoryLabelWidthType.CATEGORY
87         );
88         assertEquals(
89             CategoryLabelWidthType.RANGE, CategoryLabelWidthType.RANGE
90         );
91     }
92     
93     /**
94      * Two objects that are equal are required to return the same hashCode.
95      */

96     public void testHashCode() {
97         CategoryLabelWidthType a1 = CategoryLabelWidthType.CATEGORY;
98         CategoryLabelWidthType a2 = CategoryLabelWidthType.CATEGORY;
99         assertTrue(a1.equals(a2));
100         int h1 = a1.hashCode();
101         int h2 = a2.hashCode();
102         assertEquals(h1, h2);
103     }
104
105     /**
106      * Serialize an instance, restore it, and check for equality.
107      */

108     public void testSerialization() {
109         CategoryLabelWidthType w1 = CategoryLabelWidthType.RANGE;
110         CategoryLabelWidthType w2 = null;
111
112         try {
113             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
114             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
115             out.writeObject(w1);
116             out.close();
117
118             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
119                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
120             );
121             w2 = (CategoryLabelWidthType) in.readObject();
122             in.close();
123         }
124         catch (Exception JavaDoc e) {
125             System.out.println(e.toString());
126         }
127         assertEquals(w1, w2);
128         assertTrue(w1 == w2);
129     }
130
131 }
132
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