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Java > Open Source Codes > org > jfree > chart > labels > junit > HighLowItemLabelGeneratorTests


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  * HighLowItemLabelGeneratorTests.java
29  * -----------------------------------
30  * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: HighLowItemLabelGeneratorTests.java,v 1.1.2.1 2006/10/03 15:41:37 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 18-Mar-2003 : Version 1 (DG);
40  *
41  */
42
43 package org.jfree.chart.labels.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.text.DecimalFormat JavaDoc;
52 import java.text.NumberFormat JavaDoc;
53 import java.text.SimpleDateFormat JavaDoc;
54
55 import junit.framework.Test;
56 import junit.framework.TestCase;
57 import junit.framework.TestSuite;
58
59 import org.jfree.chart.labels.HighLowItemLabelGenerator;
60
61 /**
62  * Tests for the {@link HighLowItemLabelGenerator} class.
63  */
64 public class HighLowItemLabelGeneratorTests extends TestCase {
65
66     /**
67      * Returns the tests as a test suite.
68      *
69      * @return The test suite.
70      */
71     public static Test suite() {
72         return new TestSuite(HighLowItemLabelGeneratorTests.class);
73     }
74
75     /**
76      * Constructs a new set of tests.
77      *
78      * @param name the name of the tests.
79      */
80     public HighLowItemLabelGeneratorTests(String JavaDoc name) {
81         super(name);
82     }
83
84     /**
85      * Tests that the equals method can distinguish all fields.
86      */
87     public void testEquals() {
88         HighLowItemLabelGenerator g1 = new HighLowItemLabelGenerator();
89         HighLowItemLabelGenerator g2 = new HighLowItemLabelGenerator();
90         assertTrue(g1.equals(g2));
91         assertTrue(g2.equals(g1));
92         
93         g1 = new HighLowItemLabelGenerator(
94             new SimpleDateFormat JavaDoc("d-MMM-yyyy"), NumberFormat.getInstance()
95         );
96         assertFalse(g1.equals(g2));
97         g2 = new HighLowItemLabelGenerator(
98             new SimpleDateFormat JavaDoc("d-MMM-yyyy"), NumberFormat.getInstance()
99         );
100         assertTrue(g1.equals(g2));
101         
102         g1 = new HighLowItemLabelGenerator(
103             new SimpleDateFormat JavaDoc("d-MMM-yyyy"), new DecimalFormat JavaDoc("0.000")
104         );
105         assertFalse(g1.equals(g2));
106         g2 = new HighLowItemLabelGenerator(
107             new SimpleDateFormat JavaDoc("d-MMM-yyyy"), new DecimalFormat JavaDoc("0.000")
108         );
109         assertTrue(g1.equals(g2));
110             
111     }
112     
113     
114     /**
115      * Confirm that cloning works.
116      */
117     public void testCloning() {
118         HighLowItemLabelGenerator g1 = new HighLowItemLabelGenerator();
119         HighLowItemLabelGenerator g2 = null;
120         try {
121             g2 = (HighLowItemLabelGenerator) g1.clone();
122         }
123         catch (CloneNotSupportedException JavaDoc e) {
124             System.err.println("Failed to clone.");
125         }
126         assertTrue(g1 != g2);
127         assertTrue(g1.getClass() == g2.getClass());
128         assertTrue(g1.equals(g2));
129     }
130
131     /**
132      * Serialize an instance, restore it, and check for equality.
133      */
134     public void testSerialization() {
135
136         HighLowItemLabelGenerator g1 = new HighLowItemLabelGenerator();
137         HighLowItemLabelGenerator g2 = null;
138
139         try {
140             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
141             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
142             out.writeObject(g1);
143             out.close();
144
145             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
146                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
147             );
148             g2 = (HighLowItemLabelGenerator) in.readObject();
149             in.close();
150         }
151         catch (Exception JavaDoc e) {
152             System.out.println(e.toString());
153         }
154         assertEquals(g1, g2);
155
156     }
157
158 }
159
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