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 License
20 * along with this library; if not, write to the Free Software Foundation,
21 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22 *
23 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
24 * in the United States and other countries.]
25 *
26 * --------------------------------
27 * StandardXYItemRendererTests.java
28 * --------------------------------
29 * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
30 *
31 * Original Author: David Gilbert (for Object Refinery Limited);
32 * Contributor(s): -;
33 *
34 * $Id: StandardXYItemRendererTests.java,v 1.4 2005/06/02 09:14:45 mungady Exp $
35 *
36 * Changes
37 * -------
38 * 25-Mar-2003 : Version 1 (DG);
39 * 22-Oct-2003 : Added hashCode test (DG);
40 * 08-Oct-2004 : Strengthened test for equals() method (DG);
41 *
42 */
43
44 package org.jfree.chart.renderer.xy.junit;
45
46 import java.awt.geom.Line2D;
47 import java.io.ByteArrayInputStream;
48 import java.io.ByteArrayOutputStream;
49 import java.io.ObjectInput;
50 import java.io.ObjectInputStream;
51 import java.io.ObjectOutput;
52 import java.io.ObjectOutputStream;
53
54 import junit.framework.Test;
55 import junit.framework.TestCase;
56 import junit.framework.TestSuite;
57
58 import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
59 import org.jfree.util.UnitType;
60
61 /**
62 * Tests for the {@link StandardXYItemRenderer} class.
63 */
64 public class StandardXYItemRendererTests 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(StandardXYItemRendererTests.class);
73 }
74
75 /**
76 * Constructs a new set of tests.
77 *
78 * @param name the name of the tests.
79 */
80 public StandardXYItemRendererTests(String name) {
81 super(name);
82 }
83
84 /**
85 * Test that the equals() method distinguishes all fields.
86 */
87 public void testEquals() {
88 StandardXYItemRenderer r1 = new StandardXYItemRenderer();
89 StandardXYItemRenderer r2 = new StandardXYItemRenderer();
90 assertEquals(r1, r2);
91
92 r1.setPlotShapes(true);
93 assertFalse(r1.equals(r2));
94 r2.setPlotShapes(true);
95 assertTrue(r1.equals(r2));
96
97 r1.setPlotLines(false);
98 assertFalse(r1.equals(r2));
99 r2.setPlotLines(false);
100 assertTrue(r1.equals(r2));
101
102 r1.setPlotImages(true);
103 assertFalse(r1.equals(r2));
104 r2.setPlotImages(true);
105 assertTrue(r1.equals(r2));
106
107 r1.setShapesFilled(false);
108 assertFalse(r1.equals(r2));
109 r2.setShapesFilled(false);
110 assertTrue(r1.equals(r2));
111
112 r1.setGapThresholdType(UnitType.ABSOLUTE);
113 assertFalse(r1.equals(r2));
114 r2.setGapThresholdType(UnitType.ABSOLUTE);
115 assertTrue(r1.equals(r2));
116
117 r1.setGapThreshold(1.23);
118 assertFalse(r1.equals(r2));
119 r2.setGapThreshold(1.23);
120 assertTrue(r1.equals(r2));
121
122 r1.setLegendLine(new Line2D.Double(1.0, 2.0, 3.0, 4.0));
123 assertFalse(r1.equals(r2));
124 r2.setLegendLine(new Line2D.Double(1.0, 2.0, 3.0, 4.0));
125 assertTrue(r1.equals(r2));
126 }
127
128 /**
129 * Two objects that are equal are required to return the same hashCode.
130 */
131 public void testHashcode() {
132 StandardXYItemRenderer r1 = new StandardXYItemRenderer();
133 StandardXYItemRenderer r2 = new StandardXYItemRenderer();
134 assertTrue(r1.equals(r2));
135 int h1 = r1.hashCode();
136 int h2 = r2.hashCode();
137 assertEquals(h1, h2);
138 }
139
140 /**
141 * Confirm that cloning works.
142 */
143 public void testCloning() {
144 StandardXYItemRenderer r1 = new StandardXYItemRenderer();
145 StandardXYItemRenderer r2 = null;
146 try {
147 r2 = (StandardXYItemRenderer) r1.clone();
148 }
149 catch (CloneNotSupportedException e) {
150 System.err.println("Failed to clone.");
151 }
152 assertTrue(r1 != r2);
153 assertTrue(r1.getClass() == r2.getClass());
154 assertTrue(r1.equals(r2));
155 }
156
157 /**
158 * Serialize an instance, restore it, and check for equality.
159 */
160 public void testSerialization() {
161
162 StandardXYItemRenderer r1 = new StandardXYItemRenderer();
163 StandardXYItemRenderer r2 = null;
164
165 try {
166 ByteArrayOutputStream buffer = new ByteArrayOutputStream();
167 ObjectOutput out = new ObjectOutputStream(buffer);
168 out.writeObject(r1);
169 out.close();
170
171 ObjectInput in = new ObjectInputStream(
172 new ByteArrayInputStream(buffer.toByteArray())
173 );
174 r2 = (StandardXYItemRenderer) in.readObject();
175 in.close();
176 }
177 catch (Exception e) {
178 System.out.println(e.toString());
179 }
180 assertEquals(r1, r2);
181
182 }
183
184 }
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