001: /* ===========================================================
002: * JFreeChart : a free chart library for the Java(tm) platform
003: * ===========================================================
004: *
005: * (C) Copyright 2000-2006, 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: * XYErrorRendererTests.java
029: * -------------------------
030: * (C) Copyright 2006, by Object Refinery Limited and Contributors.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: XYErrorRendererTests.java,v 1.1.2.1 2006/10/25 09:51:49 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 25-Oct-2006 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.chart.renderer.xy.junit;
044:
045: import java.awt.Color;
046: import java.awt.GradientPaint;
047: import java.io.ByteArrayInputStream;
048: import java.io.ByteArrayOutputStream;
049: import java.io.ObjectInput;
050: import java.io.ObjectInputStream;
051: import java.io.ObjectOutput;
052: import java.io.ObjectOutputStream;
053:
054: import junit.framework.Test;
055: import junit.framework.TestCase;
056: import junit.framework.TestSuite;
057:
058: import org.jfree.chart.renderer.xy.XYErrorRenderer;
059:
060: /**
061: * Tests for the {@link XYErrorRenderer} class.
062: */
063: public class XYErrorRendererTests extends TestCase {
064:
065: /**
066: * Returns the tests as a test suite.
067: *
068: * @return The test suite.
069: */
070: public static Test suite() {
071: return new TestSuite(XYErrorRendererTests.class);
072: }
073:
074: /**
075: * Constructs a new set of tests.
076: *
077: * @param name the name of the tests.
078: */
079: public XYErrorRendererTests(String name) {
080: super (name);
081: }
082:
083: /**
084: * Check that the equals() method distinguishes all fields.
085: */
086: public void testEquals() {
087: XYErrorRenderer r1 = new XYErrorRenderer();
088: XYErrorRenderer r2 = new XYErrorRenderer();
089: assertEquals(r1, r2);
090:
091: // drawXError
092: r1.setDrawXError(false);
093: assertFalse(r1.equals(r2));
094: r2.setDrawXError(false);
095: assertTrue(r1.equals(r2));
096:
097: // drawYError
098: r1.setDrawYError(false);
099: assertFalse(r1.equals(r2));
100: r2.setDrawYError(false);
101: assertTrue(r1.equals(r2));
102:
103: // capLength
104: r1.setCapLength(9.0);
105: assertFalse(r1.equals(r2));
106: r2.setCapLength(9.0);
107: assertTrue(r1.equals(r2));
108:
109: // errorPaint
110: r1.setErrorPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
111: 4.0f, Color.green));
112: assertFalse(r1.equals(r2));
113: r2.setErrorPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
114: 4.0f, Color.green));
115: assertTrue(r1.equals(r2));
116: }
117:
118: /**
119: * Two objects that are equal are required to return the same hashCode.
120: */
121: public void testHashcode() {
122: XYErrorRenderer r1 = new XYErrorRenderer();
123: XYErrorRenderer r2 = new XYErrorRenderer();
124: assertTrue(r1.equals(r2));
125: int h1 = r1.hashCode();
126: int h2 = r2.hashCode();
127: assertEquals(h1, h2);
128: }
129:
130: /**
131: * Confirm that cloning works.
132: */
133: public void testCloning() {
134: XYErrorRenderer r1 = new XYErrorRenderer();
135: r1.setErrorPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
136: 4.0f, Color.white));
137: XYErrorRenderer r2 = null;
138: try {
139: r2 = (XYErrorRenderer) r1.clone();
140: } catch (CloneNotSupportedException e) {
141: e.printStackTrace();
142: }
143: assertTrue(r1 != r2);
144: assertTrue(r1.getClass() == r2.getClass());
145: assertTrue(r1.equals(r2));
146: }
147:
148: /**
149: * Serialize an instance, restore it, and check for equality.
150: */
151: public void testSerialization() {
152:
153: XYErrorRenderer r1 = new XYErrorRenderer();
154: r1.setErrorPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
155: 4.0f, Color.white));
156: XYErrorRenderer r2 = null;
157:
158: try {
159: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
160: ObjectOutput out = new ObjectOutputStream(buffer);
161: out.writeObject(r1);
162: out.close();
163:
164: ObjectInput in = new ObjectInputStream(
165: new ByteArrayInputStream(buffer.toByteArray()));
166: r2 = (XYErrorRenderer) in.readObject();
167: in.close();
168: } catch (Exception e) {
169: e.printStackTrace();
170: }
171: assertEquals(r1, r2);
172:
173: }
174:
175: }
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