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


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  * DateTickMarkPositionTests.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: DateTickMarkPositionTests.java,v 1.1.2.1 2006/10/03 15:41:23 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 19-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.DateTickMarkPosition;
57
58 /**
59  * Tests for the {@link DateTickMarkPosition} class.
60  */
61 public class DateTickMarkPositionTests 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(DateTickMarkPositionTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */
77     public DateTickMarkPositionTests(String JavaDoc name) {
78         super(name);
79     }
80     
81     /**
82      * Test equals() method.
83      */
84     public void testEquals() {
85         assertEquals(DateTickMarkPosition.START, DateTickMarkPosition.START);
86         assertEquals(DateTickMarkPosition.MIDDLE, DateTickMarkPosition.MIDDLE);
87         assertEquals(DateTickMarkPosition.END, DateTickMarkPosition.END);
88         assertFalse(DateTickMarkPosition.START.equals(null));
89         assertFalse(
90             DateTickMarkPosition.START.equals(DateTickMarkPosition.END)
91         );
92         assertFalse(
93             DateTickMarkPosition.MIDDLE.equals(DateTickMarkPosition.END)
94         );
95     }
96     
97     /**
98      * Two objects that are equal are required to return the same hashCode.
99      */
100     public void testHashCode() {
101         DateTickMarkPosition a1 = DateTickMarkPosition.END;
102         DateTickMarkPosition a2 = DateTickMarkPosition.END;
103         assertTrue(a1.equals(a2));
104         int h1 = a1.hashCode();
105         int h2 = a2.hashCode();
106         assertEquals(h1, h2);
107     }
108         
109     /**
110      * Serialize an instance, restore it, and check for equality.
111      */
112     public void testSerialization() {
113         DateTickMarkPosition p1 = DateTickMarkPosition.MIDDLE;
114         DateTickMarkPosition p2 = null;
115
116         try {
117             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
118             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
119             out.writeObject(p1);
120             out.close();
121
122             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
123                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
124             );
125             p2 = (DateTickMarkPosition) in.readObject();
126             in.close();
127         }
128         catch (Exception JavaDoc e) {
129             System.out.println(e.toString());
130         }
131         assertEquals(p1, p2);
132         assertTrue(p1 == p2);
133     }
134
135 }
136
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