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: * DeviationRendererTests.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: DeviationRendererTests.java,v 1.1.2.1 2007/02/27 09:54:38 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 26-Feb-2007 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.chart.renderer.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.chart.renderer.xy.DeviationRenderer;
057:
058: /**
059: * Tests for the {@link DeviationRenderer} class.
060: */
061: public class DeviationRendererTests 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(DeviationRendererTests.class);
070: }
071:
072: /**
073: * Constructs a new set of tests.
074: *
075: * @param name the name of the tests.
076: */
077: public DeviationRendererTests(String name) {
078: super (name);
079: }
080:
081: /**
082: * Test that the equals() method distinguishes all fields.
083: */
084: public void testEquals() {
085:
086: // default instances
087: DeviationRenderer r1 = new DeviationRenderer();
088: DeviationRenderer r2 = new DeviationRenderer();
089: assertTrue(r1.equals(r2));
090: assertTrue(r2.equals(r1));
091:
092: r1.setAlpha(0.1f);
093: assertFalse(r1.equals(r2));
094: r2.setAlpha(0.1f);
095: assertTrue(r1.equals(r2));
096:
097: }
098:
099: /**
100: * Two objects that are equal are required to return the same hashCode.
101: */
102: public void testHashcode() {
103: DeviationRenderer r1 = new DeviationRenderer();
104: DeviationRenderer r2 = new DeviationRenderer();
105: assertTrue(r1.equals(r2));
106: int h1 = r1.hashCode();
107: int h2 = r2.hashCode();
108: assertEquals(h1, h2);
109: }
110:
111: /**
112: * Confirm that cloning works.
113: */
114: public void testCloning() {
115: DeviationRenderer r1 = new DeviationRenderer();
116: DeviationRenderer r2 = null;
117: try {
118: r2 = (DeviationRenderer) r1.clone();
119: } catch (CloneNotSupportedException e) {
120: e.printStackTrace();
121: }
122: assertTrue(r1 != r2);
123: assertTrue(r1.getClass() == r2.getClass());
124: assertTrue(r1.equals(r2));
125:
126: // check independence
127:
128: }
129:
130: /**
131: * Serialize an instance, restore it, and check for equality.
132: */
133: public void testSerialization() {
134:
135: DeviationRenderer r1 = new DeviationRenderer();
136: DeviationRenderer r2 = null;
137:
138: try {
139: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
140: ObjectOutput out = new ObjectOutputStream(buffer);
141: out.writeObject(r1);
142: out.close();
143:
144: ObjectInput in = new ObjectInputStream(
145: new ByteArrayInputStream(buffer.toByteArray()));
146: r2 = (DeviationRenderer) in.readObject();
147: in.close();
148: } catch (Exception e) {
149: e.printStackTrace();
150: }
151: assertEquals(r1, r2);
152:
153: }
154:
155: }
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