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: * HistogramBinTests.java
029: * ----------------------
030: * (C) Copyright 2004, 2005, by Object Refinery Limited.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: HistogramBinTests.java,v 1.1.2.1 2006/10/03 15:41:41 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 01-Mar-2004 : 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.HistogramBin;
057:
058: /**
059: * Tests for the {@link HistogramBin} class.
060: */
061: public class HistogramBinTests 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(HistogramBinTests.class);
070: }
071:
072: /**
073: * Constructs a new set of tests.
074: *
075: * @param name the name of the tests.
076: */
077: public HistogramBinTests(String name) {
078: super (name);
079: }
080:
081: /**
082: * Confirm that the equals method can distinguish all the required fields.
083: */
084: public void testEquals() {
085:
086: double start = 10.0;
087: double end = 20.0;
088: HistogramBin b1 = new HistogramBin(start, end);
089: HistogramBin b2 = new HistogramBin(start, end);
090:
091: assertTrue(b1.equals(b2));
092: assertTrue(b2.equals(b1));
093:
094: }
095:
096: /**
097: * Confirm that cloning works.
098: */
099: public void testCloning() {
100: double start = 10.0;
101: double end = 20.0;
102: HistogramBin b1 = new HistogramBin(start, end);
103: HistogramBin b2 = null;
104: try {
105: b2 = (HistogramBin) b1.clone();
106: } catch (CloneNotSupportedException e) {
107: System.err.println("Failed to clone.");
108: }
109: assertTrue(b1 != b2);
110: assertTrue(b1.getClass() == b2.getClass());
111: assertTrue(b1.equals(b2));
112: }
113:
114: /**
115: * Serialize an instance, restore it, and check for equality.
116: */
117: public void testSerialization() {
118:
119: double start = 10.0;
120: double end = 20.0;
121: HistogramBin b1 = new HistogramBin(start, end);
122: HistogramBin b2 = null;
123:
124: try {
125: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
126: ObjectOutput out = new ObjectOutputStream(buffer);
127: out.writeObject(b1);
128: out.close();
129:
130: ObjectInput in = new ObjectInputStream(
131: new ByteArrayInputStream(buffer.toByteArray()));
132: b2 = (HistogramBin) in.readObject();
133: in.close();
134: } catch (Exception e) {
135: System.out.println(e.toString());
136: }
137: assertEquals(b1, b2);
138:
139: }
140:
141: }
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