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: * PaintScaleLegendTests.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: PaintScaleLegendTests.java,v 1.1.2.1 2007/01/31 14:15:16 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 22-Jan-2007 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.chart.title.junit;
044:
045: import java.awt.BasicStroke;
046: import java.awt.Color;
047: import java.awt.GradientPaint;
048: import java.io.ByteArrayInputStream;
049: import java.io.ByteArrayOutputStream;
050: import java.io.ObjectInput;
051: import java.io.ObjectInputStream;
052: import java.io.ObjectOutput;
053: import java.io.ObjectOutputStream;
054:
055: import junit.framework.Test;
056: import junit.framework.TestCase;
057: import junit.framework.TestSuite;
058:
059: import org.jfree.chart.axis.AxisLocation;
060: import org.jfree.chart.axis.NumberAxis;
061: import org.jfree.chart.renderer.GrayPaintScale;
062: import org.jfree.chart.renderer.LookupPaintScale;
063: import org.jfree.chart.title.PaintScaleLegend;
064:
065: /**
066: * Tests for the {@link PaintScaleLegend} class.
067: */
068: public class PaintScaleLegendTests extends TestCase {
069:
070: /**
071: * Returns the tests as a test suite.
072: *
073: * @return The test suite.
074: */
075: public static Test suite() {
076: return new TestSuite(PaintScaleLegendTests.class);
077: }
078:
079: /**
080: * Constructs a new set of tests.
081: *
082: * @param name the name of the tests.
083: */
084: public PaintScaleLegendTests(String name) {
085: super (name);
086: }
087:
088: /**
089: * Test that the equals() method distinguishes all fields.
090: */
091: public void testEquals() {
092:
093: // default instances
094: PaintScaleLegend l1 = new PaintScaleLegend(
095: new GrayPaintScale(), new NumberAxis("X"));
096: PaintScaleLegend l2 = new PaintScaleLegend(
097: new GrayPaintScale(), new NumberAxis("X"));
098: assertTrue(l1.equals(l2));
099: assertTrue(l2.equals(l1));
100:
101: // paintScale
102: l1.setScale(new LookupPaintScale());
103: assertFalse(l1.equals(l2));
104: l2.setScale(new LookupPaintScale());
105: assertTrue(l1.equals(l2));
106:
107: // axis
108: l1.setAxis(new NumberAxis("Axis 2"));
109: assertFalse(l1.equals(l2));
110: l2.setAxis(new NumberAxis("Axis 2"));
111: assertTrue(l1.equals(l2));
112:
113: // axisLocation
114: l1.setAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
115: assertFalse(l1.equals(l2));
116: l2.setAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
117: assertTrue(l1.equals(l2));
118:
119: // axisOffset
120: l1.setAxisOffset(99.0);
121: assertFalse(l1.equals(l2));
122: l2.setAxisOffset(99.0);
123: assertTrue(l1.equals(l2));
124:
125: // stripWidth
126: l1.setStripWidth(99.0);
127: assertFalse(l1.equals(l2));
128: l2.setStripWidth(99.0);
129: assertTrue(l1.equals(l2));
130:
131: // stripOutlineVisible
132: l1.setStripOutlineVisible(!l1.isStripOutlineVisible());
133: assertFalse(l1.equals(l2));
134: l2.setStripOutlineVisible(l1.isStripOutlineVisible());
135: assertTrue(l1.equals(l2));
136:
137: // stripOutlinePaint
138: l1.setStripOutlinePaint(new GradientPaint(1.0f, 2.0f,
139: Color.red, 3.0f, 4.0f, Color.blue));
140: assertFalse(l1.equals(l2));
141: l2.setStripOutlinePaint(new GradientPaint(1.0f, 2.0f,
142: Color.red, 3.0f, 4.0f, Color.blue));
143: assertTrue(l1.equals(l2));
144:
145: // stripOutlineStroke
146: l1.setStripOutlineStroke(new BasicStroke(1.1f));
147: assertFalse(l1.equals(l2));
148: l2.setStripOutlineStroke(new BasicStroke(1.1f));
149: assertTrue(l1.equals(l2));
150:
151: // backgroundPaint
152: l1.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
153: 3.0f, 4.0f, Color.blue));
154: assertFalse(l1.equals(l2));
155: l2.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
156: 3.0f, 4.0f, Color.blue));
157: assertTrue(l1.equals(l2));
158:
159: }
160:
161: /**
162: * Two objects that are equal are required to return the same hashCode.
163: */
164: public void testHashcode() {
165: PaintScaleLegend l1 = new PaintScaleLegend(
166: new GrayPaintScale(), new NumberAxis("X"));
167: PaintScaleLegend l2 = new PaintScaleLegend(
168: new GrayPaintScale(), new NumberAxis("X"));
169: assertTrue(l1.equals(l2));
170: int h1 = l1.hashCode();
171: int h2 = l2.hashCode();
172: assertEquals(h1, h2);
173: }
174:
175: /**
176: * Confirm that cloning works.
177: */
178: public void testCloning() {
179: PaintScaleLegend l1 = new PaintScaleLegend(
180: new GrayPaintScale(), new NumberAxis("X"));
181: PaintScaleLegend l2 = null;
182: try {
183: l2 = (PaintScaleLegend) l1.clone();
184: } catch (CloneNotSupportedException e) {
185: e.printStackTrace();
186: }
187: assertTrue(l1 != l2);
188: assertTrue(l1.getClass() == l2.getClass());
189: assertTrue(l1.equals(l2));
190: }
191:
192: /**
193: * Serialize an instance, restore it, and check for equality.
194: */
195: public void testSerialization() {
196: PaintScaleLegend l1 = new PaintScaleLegend(
197: new GrayPaintScale(), new NumberAxis("X"));
198: PaintScaleLegend l2 = null;
199: try {
200: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
201: ObjectOutput out = new ObjectOutputStream(buffer);
202: out.writeObject(l1);
203: out.close();
204:
205: ObjectInput in = new ObjectInputStream(
206: new ByteArrayInputStream(buffer.toByteArray()));
207: l2 = (PaintScaleLegend) in.readObject();
208: in.close();
209: } catch (Exception e) {
210: e.printStackTrace();
211: }
212: assertEquals(l1, l2);
213: }
214:
215: }
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