/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------
* DialPlotTests.java
* ------------------
* (C) Copyright 2006-2007, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 03-Nov-2006 : Version 1 (DG);
*
*/
package org.jfree.chart.plot.dial.junit;
import java.awt.Color;
import java.awt.GradientPaint;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jfree.chart.event.PlotChangeEvent;
import org.jfree.chart.event.PlotChangeListener;
import org.jfree.chart.plot.dial.ArcDialFrame;
import org.jfree.chart.plot.dial.DialBackground;
import org.jfree.chart.plot.dial.DialCap;
import org.jfree.chart.plot.dial.DialPlot;
import org.jfree.chart.plot.dial.StandardDialFrame;
import org.jfree.chart.plot.dial.StandardDialScale;
/**
* Tests for the {@link DialPlot} class.
*/
public class DialPlotTests extends TestCase implements PlotChangeListener {
/** The last plot change event received. */
private PlotChangeEvent lastEvent;
/**
* Records the last plot change event received.
*
* @param event the event.
*/
public void plotChanged(PlotChangeEvent event) {
this.lastEvent = event;
}
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(DialPlotTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public DialPlotTests(String name) {
super(name);
}
/**
* Confirm that the equals method can distinguish all the required fields.
*/
public void testEquals() {
DialPlot p1 = new DialPlot();
DialPlot p2 = new DialPlot();
assertTrue(p1.equals(p2));
// background
p1.setBackground(new DialBackground(Color.green));
assertFalse(p1.equals(p2));
p2.setBackground(new DialBackground(Color.green));
assertTrue(p1.equals(p2));
p1.setBackground(null);
assertFalse(p1.equals(p2));
p2.setBackground(null);
assertTrue(p1.equals(p2));
// dial cap
DialCap cap1 = new DialCap();
cap1.setFillPaint(Color.red);
p1.setCap(cap1);
assertFalse(p1.equals(p2));
DialCap cap2 = new DialCap();
cap2.setFillPaint(Color.red);
p2.setCap(cap2);
assertTrue(p1.equals(p2));
p1.setCap(null);
assertFalse(p1.equals(p2));
p2.setCap(null);
assertTrue(p1.equals(p2));
// frame
StandardDialFrame f1 = new StandardDialFrame();
f1.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
4.0f, Color.white));
p1.setDialFrame(f1);
assertFalse(p1.equals(p2));
StandardDialFrame f2 = new StandardDialFrame();
f2.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
4.0f, Color.white));
p2.setDialFrame(f2);
assertTrue(p1.equals(p2));
// view
p1.setView(0.2, 0.0, 0.8, 1.0);
assertFalse(p1.equals(p2));
p2.setView(0.2, 0.0, 0.8, 1.0);
assertTrue(p1.equals(p2));
// layer
p1.addLayer(new StandardDialScale());
assertFalse(p1.equals(p2));
p2.addLayer(new StandardDialScale());
assertTrue(p1.equals(p2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
public void testHashCode() {
DialPlot p1 = new DialPlot();
DialPlot p2 = new DialPlot();
assertTrue(p1.equals(p2));
int h1 = p1.hashCode();
int h2 = p2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
DialPlot p1 = new DialPlot();
DialPlot p2 = null;
try {
p2 = (DialPlot) p1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(p1 != p2);
assertTrue(p1.getClass() == p2.getClass());
assertTrue(p1.equals(p2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
DialPlot p1 = new DialPlot();
DialPlot p2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(p1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
p2 = (DialPlot) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(p1, p2);
}
/**
* Check the notification event mechanism for the dial background.
*/
public void testBackgroundListener() {
DialPlot p = new DialPlot();
DialBackground b1 = new DialBackground(Color.red);
p.setBackground(b1);
p.addChangeListener(this);
this.lastEvent = null;
b1.setPaint(Color.blue);
assertNotNull(this.lastEvent);
DialBackground b2 = new DialBackground(Color.green);
p.setBackground(b2);
this.lastEvent = null;
b1.setPaint(Color.red);
assertNull(this.lastEvent);
b2.setPaint(Color.red);
assertNotNull(this.lastEvent);
}
/**
* Check the notification event mechanism for the dial cap.
*/
public void testCapListener() {
DialPlot p = new DialPlot();
DialCap c1 = new DialCap();
p.setCap(c1);
p.addChangeListener(this);
this.lastEvent = null;
c1.setFillPaint(Color.red);
assertNotNull(this.lastEvent);
DialCap c2 = new DialCap();
p.setCap(c2);
this.lastEvent = null;
c1.setFillPaint(Color.blue);
assertNull(this.lastEvent);
c2.setFillPaint(Color.green);
assertNotNull(this.lastEvent);
}
/**
* Check the notification event mechanism for the dial frame.
*/
public void testFrameListener() {
DialPlot p = new DialPlot();
ArcDialFrame f1 = new ArcDialFrame();
p.setDialFrame(f1);
p.addChangeListener(this);
this.lastEvent = null;
f1.setBackgroundPaint(Color.gray);
assertNotNull(this.lastEvent);
ArcDialFrame f2 = new ArcDialFrame();
p.setDialFrame(f2);
this.lastEvent = null;
f1.setBackgroundPaint(Color.blue);
assertNull(this.lastEvent);
f2.setBackgroundPaint(Color.green);
assertNotNull(this.lastEvent);
}
/**
* Check the notification event mechanism for the dial scales.
*/
public void testScaleListener() {
DialPlot p = new DialPlot();
StandardDialScale s1 = new StandardDialScale();
p.addScale(0, s1);
p.addChangeListener(this);
this.lastEvent = null;
s1.setStartAngle(22.0);
assertNotNull(this.lastEvent);
StandardDialScale s2 = new StandardDialScale();
p.addScale(0, s2);
this.lastEvent = null;
s1.setStartAngle(33.0);
assertNull(this.lastEvent);
s2.setStartAngle(33.0);
assertNotNull(this.lastEvent);
}
/**
* Check the notification event mechanism for a layer.
*/
public void testLayerListener() {
DialPlot p = new DialPlot();
DialBackground b1 = new DialBackground(Color.red);
p.addLayer(b1);
p.addChangeListener(this);
this.lastEvent = null;
b1.setPaint(Color.blue);
assertNotNull(this.lastEvent);
DialBackground b2 = new DialBackground(Color.green);
p.addLayer(b2);
this.lastEvent = null;
b1.setPaint(Color.red);
assertNotNull(this.lastEvent);
b2.setPaint(Color.green);
assertNotNull(this.lastEvent);
p.removeLayer(b2);
this.lastEvent = null;
b2.setPaint(Color.red);
assertNull(this.lastEvent);
}
}