001: /* ===========================================================
002: * JFreeChart : a free chart library for the Java(tm) platform
003: * ===========================================================
004: *
005: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006: *
007: * Project Info: http://www.jfree.org/jfreechart/index.html
008: *
009: * This library is free software; you can redistribute it and/or modify it
010: * under the terms of the GNU Lesser General Public License as published by
011: * the Free Software Foundation; either version 2.1 of the License, or
012: * (at your option) any later version.
013: *
014: * This library is distributed in the hope that it will be useful, but
015: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017: * License for more details.
018: *
019: * You should have received a copy of the GNU Lesser General Public
020: * License along with this library; if not, write to the Free Software
021: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022: * USA.
023: *
024: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025: * in the United States and other countries.]
026: *
027: * ----------------------------
028: * SimpleHistogramBinTests.java
029: * ----------------------------
030: * (C) Copyright 2005 by Object Refinery Limited and Contributors.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: SimpleHistogramBinTests.java,v 1.1.2.1 2006/10/03 15:41:42 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 10-Jan-2005 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.data.statistics.junit;
044:
045: import java.io.ByteArrayInputStream;
046: import java.io.ByteArrayOutputStream;
047: import java.io.ObjectInput;
048: import java.io.ObjectInputStream;
049: import java.io.ObjectOutput;
050: import java.io.ObjectOutputStream;
051:
052: import junit.framework.Test;
053: import junit.framework.TestCase;
054: import junit.framework.TestSuite;
055:
056: import org.jfree.data.statistics.SimpleHistogramBin;
057:
058: /**
059: * Tests for the {@link SimpleHistogramBin} class.
060: */
061: public class SimpleHistogramBinTests extends TestCase {
062:
063: /**
064: * Returns the tests as a test suite.
065: *
066: * @return The test suite.
067: */
068: public static Test suite() {
069: return new TestSuite(SimpleHistogramBinTests.class);
070: }
071:
072: /**
073: * Constructs a new set of tests.
074: *
075: * @param name the name of the tests.
076: */
077: public SimpleHistogramBinTests(String name) {
078: super (name);
079: }
080:
081: /**
082: * Some checks for the accepts() method.
083: */
084: public void testAccepts() {
085: SimpleHistogramBin bin1 = new SimpleHistogramBin(1.0, 2.0);
086: assertFalse(bin1.accepts(0.0));
087: assertTrue(bin1.accepts(1.0));
088: assertTrue(bin1.accepts(1.5));
089: assertTrue(bin1.accepts(2.0));
090: assertFalse(bin1.accepts(2.1));
091: assertFalse(bin1.accepts(Double.NaN));
092:
093: SimpleHistogramBin bin2 = new SimpleHistogramBin(1.0, 2.0,
094: false, false);
095: assertFalse(bin2.accepts(0.0));
096: assertFalse(bin2.accepts(1.0));
097: assertTrue(bin2.accepts(1.5));
098: assertFalse(bin2.accepts(2.0));
099: assertFalse(bin2.accepts(2.1));
100: assertFalse(bin2.accepts(Double.NaN));
101: }
102:
103: /**
104: * Some checks for the overlapsWith() method.
105: */
106: public void testOverlapsWidth() {
107: SimpleHistogramBin b1 = new SimpleHistogramBin(1.0, 2.0);
108: SimpleHistogramBin b2 = new SimpleHistogramBin(2.0, 3.0);
109: SimpleHistogramBin b3 = new SimpleHistogramBin(3.0, 4.0);
110: SimpleHistogramBin b4 = new SimpleHistogramBin(0.0, 5.0);
111: SimpleHistogramBin b5 = new SimpleHistogramBin(2.0, 3.0, false,
112: true);
113: SimpleHistogramBin b6 = new SimpleHistogramBin(2.0, 3.0, true,
114: false);
115: assertTrue(b1.overlapsWith(b2));
116: assertTrue(b2.overlapsWith(b1));
117: assertFalse(b1.overlapsWith(b3));
118: assertFalse(b3.overlapsWith(b1));
119: assertTrue(b1.overlapsWith(b4));
120: assertTrue(b4.overlapsWith(b1));
121: assertFalse(b1.overlapsWith(b5));
122: assertFalse(b5.overlapsWith(b1));
123: assertTrue(b1.overlapsWith(b6));
124: assertTrue(b6.overlapsWith(b1));
125: }
126:
127: /**
128: * Ensure that the equals() method can distinguish all fields.
129: */
130: public void testEquals() {
131: SimpleHistogramBin b1 = new SimpleHistogramBin(1.0, 2.0);
132: SimpleHistogramBin b2 = new SimpleHistogramBin(1.0, 2.0);
133: assertTrue(b1.equals(b2));
134: assertTrue(b2.equals(b1));
135:
136: b1 = new SimpleHistogramBin(1.1, 2.0, true, true);
137: assertFalse(b1.equals(b2));
138: b2 = new SimpleHistogramBin(1.1, 2.0, true, true);
139: assertTrue(b1.equals(b2));
140:
141: b1 = new SimpleHistogramBin(1.1, 2.2, true, true);
142: assertFalse(b1.equals(b2));
143: b2 = new SimpleHistogramBin(1.1, 2.2, true, true);
144: assertTrue(b1.equals(b2));
145:
146: b1 = new SimpleHistogramBin(1.1, 2.2, false, true);
147: assertFalse(b1.equals(b2));
148: b2 = new SimpleHistogramBin(1.1, 2.2, false, true);
149: assertTrue(b1.equals(b2));
150:
151: b1 = new SimpleHistogramBin(1.1, 2.2, false, false);
152: assertFalse(b1.equals(b2));
153: b2 = new SimpleHistogramBin(1.1, 2.2, false, false);
154: assertTrue(b1.equals(b2));
155:
156: b1.setItemCount(99);
157: assertFalse(b1.equals(b2));
158: b2.setItemCount(99);
159: assertTrue(b1.equals(b2));
160: }
161:
162: /**
163: * Some checks for the clone() method.
164: */
165: public void testCloning() {
166: SimpleHistogramBin b1 = new SimpleHistogramBin(1.1, 2.2, false,
167: true);
168: b1.setItemCount(99);
169: SimpleHistogramBin b2 = null;
170: try {
171: b2 = (SimpleHistogramBin) b1.clone();
172: } catch (CloneNotSupportedException e) {
173: System.err.println("Failed to clone.");
174: }
175: assertTrue(b1 != b2);
176: assertTrue(b1.getClass() == b2.getClass());
177: assertTrue(b1.equals(b2));
178:
179: // check that clone is independent of the original
180: b2.setItemCount(111);
181: assertFalse(b1.equals(b2));
182: }
183:
184: /**
185: * Serialize an instance, restore it, and check for equality.
186: */
187: public void testSerialization() {
188:
189: SimpleHistogramBin b1 = new SimpleHistogramBin(1.0, 2.0, false,
190: true);
191: b1.setItemCount(123);
192: SimpleHistogramBin b2 = null;
193: try {
194: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
195: ObjectOutput out = new ObjectOutputStream(buffer);
196: out.writeObject(b1);
197: out.close();
198: ObjectInput in = new ObjectInputStream(
199: new ByteArrayInputStream(buffer.toByteArray()));
200: b2 = (SimpleHistogramBin) in.readObject();
201: in.close();
202: } catch (Exception e) {
203: System.out.println(e.toString());
204: }
205: assertEquals(b1, b2);
206: }
207:
208: }
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