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


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  * OHLCDataItemTests.java
29  * ----------------------
30  * (C) Copyright 2005, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: OHLCDataItemTests.java,v 1.1.2.1 2006/10/03 15:41:38 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 29-Apr-2005 : 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 import java.util.Date JavaDoc;
52
53 import junit.framework.Test;
54 import junit.framework.TestCase;
55 import junit.framework.TestSuite;
56
57 import org.jfree.data.xy.OHLCDataItem;
58
59 /**
60  * Tests for the {@link OHLCDataItem} class.
61  */
62 public class OHLCDataItemTests extends TestCase {
63
64     /**
65      * Returns the tests as a test suite.
66      *
67      * @return The test suite.
68      */
69     public static Test suite() {
70         return new TestSuite(OHLCDataItemTests.class);
71     }
72
73     /**
74      * Constructs a new set of tests.
75      *
76      * @param name the name of the tests.
77      */
78     public OHLCDataItemTests(String JavaDoc name) {
79         super(name);
80     }
81
82     /**
83      * Confirm that the equals method can distinguish all the required fields.
84      */
85     public void testEquals() {
86         OHLCDataItem i1 = new OHLCDataItem(
87             new Date JavaDoc(1L), 1.0, 2.0, 3.0, 4.0, 5.0
88         );
89         OHLCDataItem i2 = new OHLCDataItem(
90             new Date JavaDoc(1L), 1.0, 2.0, 3.0, 4.0, 5.0
91         );
92         assertTrue(i1.equals(i2));
93         assertTrue(i2.equals(i1));
94     }
95
96     /**
97      * Instances of this class are immutable - cloning not required.
98      */
99     public void testCloning() {
100         OHLCDataItem i1 = new OHLCDataItem(
101             new Date JavaDoc(1L), 1.0, 2.0, 3.0, 4.0, 5.0
102         );
103         assertFalse(i1 instanceof Cloneable JavaDoc);
104     }
105
106     /**
107      * Serialize an instance, restore it, and check for equality.
108      */
109     public void testSerialization() {
110         OHLCDataItem i1 = new OHLCDataItem(
111             new Date JavaDoc(1L), 1.0, 2.0, 3.0, 4.0, 5.0
112         );
113         OHLCDataItem i2 = null;
114         
115         try {
116             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
117             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
118             out.writeObject(i1);
119             out.close();
120
121             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
122                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
123             );
124             i2 = (OHLCDataItem) in.readObject();
125             in.close();
126         }
127         catch (Exception JavaDoc e) {
128             e.printStackTrace();
129         }
130         assertEquals(i1, i2);
131     }
132
133 }
134
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