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: * EmptyBlockTests.java
029: * --------------------
030: * (C) Copyright 2005, 2007, by Object Refinery Limited and Contributors.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: EmptyBlockTests.java,v 1.1.2.2 2007/03/16 15:26:16 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 04-Feb-2005 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.chart.block.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.chart.block.EmptyBlock;
057:
058: /**
059: * Tests for the {@link EmptyBlock} class.
060: */
061: public class EmptyBlockTests 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(EmptyBlockTests.class);
070: }
071:
072: /**
073: * Constructs a new set of tests.
074: *
075: * @param name the name of the tests.
076: */
077: public EmptyBlockTests(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: EmptyBlock b1 = new EmptyBlock(1.0, 2.0);
086: EmptyBlock b2 = new EmptyBlock(1.0, 2.0);
087: assertTrue(b1.equals(b2));
088: assertTrue(b2.equals(b2));
089:
090: b1 = new EmptyBlock(1.1, 2.0);
091: assertFalse(b1.equals(b2));
092: b2 = new EmptyBlock(1.1, 2.0);
093: assertTrue(b1.equals(b2));
094:
095: b1 = new EmptyBlock(1.1, 2.2);
096: assertFalse(b1.equals(b2));
097: b2 = new EmptyBlock(1.1, 2.2);
098: assertTrue(b1.equals(b2));
099: }
100:
101: /**
102: * Confirm that cloning works.
103: */
104: public void testCloning() {
105: EmptyBlock b1 = new EmptyBlock(1.0, 2.0);
106: EmptyBlock b2 = null;
107:
108: try {
109: b2 = (EmptyBlock) b1.clone();
110: } catch (CloneNotSupportedException e) {
111: fail(e.toString());
112: }
113: assertTrue(b1 != b2);
114: assertTrue(b1.getClass() == b2.getClass());
115: assertTrue(b1.equals(b2));
116: }
117:
118: /**
119: * Serialize an instance, restore it, and check for equality.
120: */
121: public void testSerialization() {
122: EmptyBlock b1 = new EmptyBlock(1.0, 2.0);
123: EmptyBlock b2 = null;
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 = (EmptyBlock) in.readObject();
133: in.close();
134: } catch (Exception e) {
135: fail(e.toString());
136: }
137: assertEquals(b1, b2);
138: }
139:
140: }
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