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: * DomainOrderTests.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: DomainOrderTests.java,v 1.1.2.1 2006/10/03 15:41:42 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 19-May-2005 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.data.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.DomainOrder;
057:
058: /**
059: * Tests for the {@link DomainOrder} class.
060: */
061: public class DomainOrderTests 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(DomainOrderTests.class);
070: }
071:
072: /**
073: * Constructs a new set of tests.
074: *
075: * @param name the name of the tests.
076: */
077: public DomainOrderTests(String name) {
078: super (name);
079: }
080:
081: /**
082: * Some checks for the equals() method.
083: */
084: public void testEquals() {
085: assertEquals(DomainOrder.NONE, DomainOrder.NONE);
086: assertEquals(DomainOrder.ASCENDING, DomainOrder.ASCENDING);
087: assertEquals(DomainOrder.DESCENDING, DomainOrder.DESCENDING);
088: assertFalse(DomainOrder.NONE.equals(DomainOrder.ASCENDING));
089: assertFalse(DomainOrder.NONE.equals(DomainOrder.DESCENDING));
090: assertFalse(DomainOrder.NONE.equals(null));
091: assertFalse(DomainOrder.ASCENDING.equals(DomainOrder.NONE));
092: assertFalse(DomainOrder.ASCENDING
093: .equals(DomainOrder.DESCENDING));
094: assertFalse(DomainOrder.ASCENDING.equals(null));
095: assertFalse(DomainOrder.DESCENDING.equals(DomainOrder.NONE));
096: assertFalse(DomainOrder.DESCENDING
097: .equals(DomainOrder.ASCENDING));
098: assertFalse(DomainOrder.DESCENDING.equals(null));
099: }
100:
101: /**
102: * Two objects that are equal are required to return the same hashCode.
103: */
104: public void testHashCode() {
105: DomainOrder d1 = DomainOrder.ASCENDING;
106: DomainOrder d2 = DomainOrder.ASCENDING;
107: assertTrue(d1.equals(d2));
108: int h1 = d1.hashCode();
109: int h2 = d2.hashCode();
110: assertEquals(h1, h2);
111: }
112:
113: /**
114: * Serialize an instance, restore it, and check for equality.
115: */
116: public void testSerialization() {
117: DomainOrder d1 = DomainOrder.ASCENDING;
118: DomainOrder d2 = null;
119: try {
120: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
121: ObjectOutput out = new ObjectOutputStream(buffer);
122: out.writeObject(d1);
123: out.close();
124:
125: ObjectInput in = new ObjectInputStream(
126: new ByteArrayInputStream(buffer.toByteArray()));
127: d2 = (DomainOrder) in.readObject();
128: in.close();
129: } catch (Exception e) {
130: System.out.println(e.toString());
131: }
132: assertEquals(d1, d2);
133: boolean same = d1 == d2;
134: assertEquals(true, same);
135: }
136:
137: }
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