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Java > Open Source Codes > org > jfree > chart > renderer > xy > junit > XYBoxAndWhiskerRendererTests


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  * XYBoxAndWhiskerRendererTests.java
29  * ---------------------------------
30  * (C) Copyright 2003-2005, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: XYBoxAndWhiskerRendererTests.java,v 1.1.2.1 2006/10/03 15:41:45 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 22-Oct-2003 : Version 1 (DG);
40  * 23-Apr-2004 : Extended testEquals() method (DG);
41  *
42  */
43
44 package org.jfree.chart.renderer.xy.junit;
45
46 import java.awt.Color JavaDoc;
47 import java.awt.GradientPaint JavaDoc;
48 import java.io.ByteArrayInputStream JavaDoc;
49 import java.io.ByteArrayOutputStream JavaDoc;
50 import java.io.ObjectInput JavaDoc;
51 import java.io.ObjectInputStream JavaDoc;
52 import java.io.ObjectOutput JavaDoc;
53 import java.io.ObjectOutputStream JavaDoc;
54
55 import junit.framework.Test;
56 import junit.framework.TestCase;
57 import junit.framework.TestSuite;
58
59 import org.jfree.chart.renderer.xy.XYBoxAndWhiskerRenderer;
60
61 /**
62  * Tests for the {@link XYBoxAndWhiskerRenderer} class.
63  */
64 public class XYBoxAndWhiskerRendererTests 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(XYBoxAndWhiskerRendererTests.class);
73     }
74
75     /**
76      * Constructs a new set of tests.
77      *
78      * @param name the name of the tests.
79      */
80     public XYBoxAndWhiskerRendererTests(String JavaDoc name) {
81         super(name);
82     }
83
84     /**
85      * Check that the equals() method distinguishes all fields.
86      */
87     public void testEquals() {
88         
89         XYBoxAndWhiskerRenderer r1 = new XYBoxAndWhiskerRenderer();
90         XYBoxAndWhiskerRenderer r2 = new XYBoxAndWhiskerRenderer();
91         assertEquals(r1, r2);
92         
93         r1.setPaint(new GradientPaint JavaDoc(1.0f, 2.0f, Color.yellow,
94                 3.0f, 4.0f, Color.red));
95         assertFalse(r1.equals(r2));
96         r2.setPaint(new GradientPaint JavaDoc(1.0f, 2.0f, Color.yellow,
97                 3.0f, 4.0f, Color.red));
98         assertEquals(r1, r2);
99         
100         r1.setArtifactPaint(new GradientPaint JavaDoc(1.0f, 2.0f, Color.green,
101                 3.0f, 4.0f, Color.red));
102         assertFalse(r1.equals(r2));
103         r2.setArtifactPaint(new GradientPaint JavaDoc(1.0f, 2.0f, Color.green,
104                 3.0f, 4.0f, Color.red));
105         assertEquals(r1, r2);
106         
107         r1.setBoxWidth(0.55);
108         assertFalse(r1.equals(r2));
109         r2.setBoxWidth(0.55);
110         assertEquals(r1, r2);
111         
112         r1.setFillBox(!r1.getFillBox());
113         assertFalse(r1.equals(r2));
114         r2.setFillBox(!r2.getFillBox());
115         assertEquals(r1, r2);
116         
117     }
118
119     /**
120      * Two objects that are equal are required to return the same hashCode.
121      */
122     public void testHashcode() {
123         XYBoxAndWhiskerRenderer r1 = new XYBoxAndWhiskerRenderer();
124         XYBoxAndWhiskerRenderer r2 = new XYBoxAndWhiskerRenderer();
125         assertTrue(r1.equals(r2));
126         int h1 = r1.hashCode();
127         int h2 = r2.hashCode();
128         assertEquals(h1, h2);
129     }
130     
131     /**
132      * Confirm that cloning works.
133      */
134     public void testCloning() {
135         XYBoxAndWhiskerRenderer r1 = new XYBoxAndWhiskerRenderer();
136         XYBoxAndWhiskerRenderer r2 = null;
137         try {
138             r2 = (XYBoxAndWhiskerRenderer) r1.clone();
139         }
140         catch (CloneNotSupportedException JavaDoc e) {
141             System.err.println("Failed to clone.");
142         }
143         assertTrue(r1 != r2);
144         assertTrue(r1.getClass() == r2.getClass());
145         assertTrue(r1.equals(r2));
146     }
147
148     /**
149      * Serialize an instance, restore it, and check for equality.
150      */
151     public void testSerialization() {
152
153         XYBoxAndWhiskerRenderer r1 = new XYBoxAndWhiskerRenderer();
154         XYBoxAndWhiskerRenderer r2 = null;
155
156         try {
157             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
158             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
159             out.writeObject(r1);
160             out.close();
161
162             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
163                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
164             );
165             r2 = (XYBoxAndWhiskerRenderer) in.readObject();
166             in.close();
167         }
168         catch (Exception JavaDoc e) {
169             System.out.println(e.toString());
170         }
171         assertEquals(r1, r2);
172
173     }
174
175 }
176
177
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