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 * LineAndShapeRendererTests.java
28 * ------------------------------
29 * (C) Copyright 2003-2005, by Object Refinery Limited and Contributors.
30 *
31 * Original Author: David Gilbert (for Object Refinery Limited);
32 * Contributor(s): -;
33 *
34 * $Id: LineAndShapeRendererTests.java,v 1.5 2005/03/09 22:07:57 mungady Exp $
35 *
36 * Changes
37 * -------
38 * 22-Sep-2003 : Version 1 (DG);
39 *
40 */
41
42 package org.jfree.chart.renderer.category.junit;
43
44 import java.io.ByteArrayInputStream;
45 import java.io.ByteArrayOutputStream;
46 import java.io.ObjectInput;
47 import java.io.ObjectInputStream;
48 import java.io.ObjectOutput;
49 import java.io.ObjectOutputStream;
50
51 import junit.framework.Test;
52 import junit.framework.TestCase;
53 import junit.framework.TestSuite;
54
55 import org.jfree.chart.renderer.category.LineAndShapeRenderer;
56
57 /**
58 * Tests for the {@link LineAndShapeRenderer} class.
59 */
60 public class LineAndShapeRendererTests extends TestCase {
61
62 /**
63 * Returns the tests as a test suite.
64 *
65 * @return The test suite.
66 */
67 public static Test suite() {
68 return new TestSuite(LineAndShapeRendererTests.class);
69 }
70
71 /**
72 * Constructs a new set of tests.
73 *
74 * @param name the name of the tests.
75 */
76 public LineAndShapeRendererTests(String name) {
77 super(name);
78 }
79
80 /**
81 * Test that the equals() method distinguishes all fields.
82 */
83 public void testEquals() {
84
85 LineAndShapeRenderer r1 = new LineAndShapeRenderer();
86 LineAndShapeRenderer r2 = new LineAndShapeRenderer();
87 assertEquals(r1, r2);
88
89 r1.setShapesVisible(!r1.isShapesVisible());
90 assertFalse(r1.equals(r2));
91 r2.setShapesVisible(r1.isShapesVisible());
92 assertTrue(r1.equals(r2));
93
94 r1.setLinesVisible(!r1.isLinesVisible());
95 assertFalse(r1.equals(r2));
96 r2.setLinesVisible(r1.isLinesVisible());
97 assertTrue(r1.equals(r2));
98
99 r1.setShapesFilled(false);
100 assertFalse(r1.equals(r2));
101 r2.setShapesFilled(false);
102 assertTrue(r1.equals(r2));
103
104 r1.setSeriesShapesFilled(1, true);
105 assertFalse(r1.equals(r2));
106 r2.setSeriesShapesFilled(1, true);
107 assertTrue(r1.equals(r2));
108
109 r1.setDefaultShapesFilled(false);
110 assertFalse(r1.equals(r2));
111 r2.setDefaultShapesFilled(false);
112 assertTrue(r1.equals(r2));
113
114 r1.setUseOutlinePaint(true);
115 assertFalse(r1.equals(r2));
116 r2.setUseOutlinePaint(true);
117 assertTrue(r1.equals(r2));
118
119 }
120
121 /**
122 * Two objects that are equal are required to return the same hashCode.
123 */
124 public void testHashcode() {
125 LineAndShapeRenderer r1 = new LineAndShapeRenderer();
126 LineAndShapeRenderer r2 = new LineAndShapeRenderer();
127 assertTrue(r1.equals(r2));
128 int h1 = r1.hashCode();
129 int h2 = r2.hashCode();
130 assertEquals(h1, h2);
131 }
132
133 /**
134 * Confirm that cloning works.
135 */
136 public void testCloning() {
137 LineAndShapeRenderer r1 = new LineAndShapeRenderer();
138 LineAndShapeRenderer r2 = null;
139 try {
140 r2 = (LineAndShapeRenderer) r1.clone();
141 }
142 catch (CloneNotSupportedException e) {
143 System.err.println("Failed to clone.");
144 }
145 assertTrue(r1 != r2);
146 assertTrue(r1.getClass() == r2.getClass());
147 assertTrue(r1.equals(r2));
148
149 assertTrue(checkIndependence(r1, r2));
150
151 }
152
153 /**
154 * Checks that the two renderers are equal but independent of one another.
155 *
156 * @param r1 renderer 1.
157 * @param r2 renderer 2.
158 *
159 * @return A boolean.
160 */
161 private boolean checkIndependence(LineAndShapeRenderer r1,
162 LineAndShapeRenderer r2) {
163
164 // should be equal...
165 boolean b0 = r1.equals(r2);
166
167 // and independent...
168 r1.setShapesVisible(!r1.isShapesVisible());
169 boolean b1 = !r1.equals(r2);
170 r2.setShapesVisible(r1.isShapesVisible());
171 boolean b2 = r1.equals(r2);
172
173 r1.setLinesVisible(!r1.isLinesVisible());
174 boolean b3 = !r1.equals(r2);
175 r2.setLinesVisible(r1.isLinesVisible());
176 boolean b4 = r1.equals(r2);
177
178 boolean flag = true;
179 Boolean existing = r1.getShapesFilled();
180 if (existing != null) {
181 flag = !existing.booleanValue();
182 }
183 r1.setShapesFilled(flag);
184 boolean b5 = !r1.equals(r2);
185 r2.setShapesFilled(flag);
186 boolean b6 = r1.equals(r2);
187
188 r1.setShapesFilled(false);
189 r2.setShapesFilled(false);
190 r1.setSeriesShapesFilled(0, false);
191 r2.setSeriesShapesFilled(0, true);
192 boolean b7 = !r1.equals(r2);
193 r2.setSeriesShapesFilled(0, false);
194 boolean b8 = (r1.equals(r2));
195
196 r1.setDefaultShapesFilled(false);
197 r2.setDefaultShapesFilled(true);
198 boolean b9 = !r1.equals(r2);
199 r2.setDefaultShapesFilled(false);
200 boolean b10 = (r1.equals(r2));
201
202 return b0 && b1 && b2 && b3 && b4 && b5 && b6 && b7 && b8 && b9 && b10;
203
204 }
205
206 /**
207 * Serialize an instance, restore it, and check for equality.
208 */
209 public void testSerialization() {
210
211 LineAndShapeRenderer r1 = new LineAndShapeRenderer();
212 LineAndShapeRenderer r2 = null;
213
214 try {
215 ByteArrayOutputStream buffer = new ByteArrayOutputStream();
216 ObjectOutput out = new ObjectOutputStream(buffer);
217 out.writeObject(r1);
218 out.close();
219
220 ObjectInput in = new ObjectInputStream(
221 new ByteArrayInputStream(buffer.toByteArray())
222 );
223 r2 = (LineAndShapeRenderer) in.readObject();
224 in.close();
225 }
226 catch (Exception e) {
227 System.out.println(e.toString());
228 }
229 assertEquals(r1, r2);
230
231 }
232
233 }
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