001: /* ===========================================================
002: * JFreeChart : a free chart library for the Java(tm) platform
003: * ===========================================================
004: *
005: * (C) Copyright 2000-2007, 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: * XYCoordinateTests.java
029: * ----------------------
030: * (C) Copyright 2007, by Object Refinery Limited and Contributors.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: XYCoordinateTests.java,v 1.1.2.1 2007/06/13 10:28:05 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 30-Jan-2007 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.data.xy.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.xy.XYCoordinate;
057:
058: /**
059: * Tests for the {@link XYCoordinate} class.
060: */
061: public class XYCoordinateTests 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(XYCoordinateTests.class);
070: }
071:
072: /**
073: * Constructs a new set of tests.
074: *
075: * @param name the name of the tests.
076: */
077: public XYCoordinateTests(String name) {
078: super (name);
079: }
080:
081: /**
082: * Test that the equals() method distinguishes all fields.
083: */
084: public void testEquals() {
085: // default instances
086: XYCoordinate v1 = new XYCoordinate(1.0, 2.0);
087: XYCoordinate v2 = new XYCoordinate(1.0, 2.0);
088: assertTrue(v1.equals(v2));
089: assertTrue(v2.equals(v1));
090:
091: v1 = new XYCoordinate(1.1, 2.0);
092: assertFalse(v1.equals(v2));
093: v2 = new XYCoordinate(1.1, 2.0);
094: assertTrue(v1.equals(v2));
095:
096: v1 = new XYCoordinate(1.1, 2.2);
097: assertFalse(v1.equals(v2));
098: v2 = new XYCoordinate(1.1, 2.2);
099: assertTrue(v1.equals(v2));
100: }
101:
102: /**
103: * Two objects that are equal are required to return the same hashCode.
104: */
105: public void testHashcode() {
106: XYCoordinate v1 = new XYCoordinate(1.0, 2.0);
107: XYCoordinate v2 = new XYCoordinate(1.0, 2.0);
108: assertTrue(v1.equals(v2));
109: int h1 = v1.hashCode();
110: int h2 = v2.hashCode();
111: assertEquals(h1, h2);
112: }
113:
114: /**
115: * Immutable class is not cloneable.
116: */
117: public void testCloning() {
118: XYCoordinate v1 = new XYCoordinate(1.0, 2.0);
119: assertFalse(v1 instanceof Cloneable);
120: }
121:
122: /**
123: * Serialize an instance, restore it, and check for equality.
124: */
125: public void testSerialization() {
126: XYCoordinate v1 = new XYCoordinate(1.0, 2.0);
127: XYCoordinate v2 = null;
128: try {
129: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
130: ObjectOutput out = new ObjectOutputStream(buffer);
131: out.writeObject(v1);
132: out.close();
133:
134: ObjectInput in = new ObjectInputStream(
135: new ByteArrayInputStream(buffer.toByteArray()));
136: v2 = (XYCoordinate) in.readObject();
137: in.close();
138: } catch (Exception e) {
139: e.printStackTrace();
140: }
141: assertEquals(v1, v2);
142: }
143:
144: }
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