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Java > Open Source Codes > org > jfree > chart > junit > ChartRenderingInfoTests


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  * ChartRenderingInfoTests.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: ChartRenderingInfoTests.java,v 1.1.2.1 2006/10/03 15:41:30 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 19-Mar-2004 : Version 1 (DG);
40  * 30-Nov-2005 : Updated for removed field in ChartRenderingInfo (DG);
41  *
42  */
43
44 package org.jfree.chart.junit;
45
46 import java.awt.geom.Rectangle2D JavaDoc;
47 import java.io.ByteArrayInputStream JavaDoc;
48 import java.io.ByteArrayOutputStream JavaDoc;
49 import java.io.ObjectInput JavaDoc;
50 import java.io.ObjectInputStream JavaDoc;
51 import java.io.ObjectOutput JavaDoc;
52 import java.io.ObjectOutputStream JavaDoc;
53
54 import junit.framework.Test;
55 import junit.framework.TestCase;
56 import junit.framework.TestSuite;
57
58 import org.jfree.chart.ChartRenderingInfo;
59
60 /**
61  * Tests for the {@link ChartRenderingInfo} class.
62  */
63 public class ChartRenderingInfoTests extends TestCase {
64
65     /**
66      * Returns the tests as a test suite.
67      *
68      * @return The test suite.
69      */
70     public static Test suite() {
71         return new TestSuite(ChartRenderingInfoTests.class);
72     }
73
74     /**
75      * Constructs a new set of tests.
76      *
77      * @param name the name of the tests.
78      */
79     public ChartRenderingInfoTests(String JavaDoc name) {
80         super(name);
81     }
82
83     /**
84      * Confirm that the equals method can distinguish all the required fields.
85      */
86     public void testEquals() {
87         
88         ChartRenderingInfo i1 = new ChartRenderingInfo();
89         ChartRenderingInfo i2 = new ChartRenderingInfo();
90         assertTrue(i1.equals(i2));
91         
92         i1.setChartArea(new Rectangle2D.Double JavaDoc(1.0, 2.0, 3.0, 4.0));
93         assertFalse(i1.equals(i2));
94         i2.setChartArea(new Rectangle2D.Double JavaDoc(1.0, 2.0, 3.0, 4.0));
95         assertTrue(i1.equals(i2));
96         
97         i1.getPlotInfo().setDataArea(new Rectangle2D.Double JavaDoc(1.0, 1.0, 1.0, 1.0));
98         assertFalse(i1.equals(i2));
99         i2.getPlotInfo().setDataArea(new Rectangle2D.Double JavaDoc(1.0, 1.0, 1.0, 1.0));
100         assertTrue(i1.equals(i2));
101     }
102
103     /**
104      * Confirm that cloning works.
105      */
106     public void testCloning() {
107         ChartRenderingInfo i1 = new ChartRenderingInfo();
108         ChartRenderingInfo i2 = null;
109         try {
110             i2 = (ChartRenderingInfo) i1.clone();
111         }
112         catch (CloneNotSupportedException JavaDoc e) {
113             System.err.println("Failed to clone.");
114         }
115         assertTrue(i1 != i2);
116         assertTrue(i1.getClass() == i2.getClass());
117         assertTrue(i1.equals(i2));
118     }
119
120     /**
121      * Serialize an instance, restore it, and check for equality.
122      */
123     public void testSerialization() {
124
125         ChartRenderingInfo i1 = new ChartRenderingInfo();
126         i1.setChartArea(new Rectangle2D.Double JavaDoc(1.0, 2.0, 3.0, 4.0));
127         ChartRenderingInfo i2 = null;
128         try {
129             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
130             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
131             out.writeObject(i1);
132             out.close();
133
134             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
135                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
136             );
137             i2 = (ChartRenderingInfo) in.readObject();
138             in.close();
139         }
140         catch (Exception JavaDoc e) {
141             e.printStackTrace();
142         }
143         assertEquals(i1, i2);
144
145     }
146
147     /**
148      * Serialize an instance, restore it, and check for equality.
149      */
150     public void testSerialization2() {
151
152         ChartRenderingInfo i1 = new ChartRenderingInfo();
153         i1.getPlotInfo().setDataArea(new Rectangle2D.Double JavaDoc(1.0, 2.0, 3.0,
154                 4.0));
155         ChartRenderingInfo i2 = null;
156         try {
157             ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
158             ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
159             out.writeObject(i1);
160             out.close();
161
162             ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(
163                 new ByteArrayInputStream JavaDoc(buffer.toByteArray())
164             );
165             i2 = (ChartRenderingInfo) in.readObject();
166             in.close();
167         }
168         catch (Exception JavaDoc e) {
169             e.printStackTrace();
170         }
171         assertEquals(i1, i2);
172         assertEquals(i2, i2.getPlotInfo().getOwner());
173
174     }
175 }
176
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