/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2008, 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.]
*
* --------------------------
* PaintScaleLegendTests.java
* --------------------------
* (C) Copyright 2007, 2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 22-Jan-2007 : Version 1 (DG);
* 18-Jun-2008 : Extended testEquals() for new field (DG);
*
*/
package org.jfree.chart.title.junit;
import java.awt.BasicStroke;
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.axis.AxisLocation;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.renderer.GrayPaintScale;
import org.jfree.chart.renderer.LookupPaintScale;
import org.jfree.chart.title.PaintScaleLegend;
/**
* Tests for the {@link PaintScaleLegend} class.
*/
public class PaintScaleLegendTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(PaintScaleLegendTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public PaintScaleLegendTests(String name) {
super(name);
}
/**
* Test that the equals() method distinguishes all fields.
*/
public void testEquals() {
// default instances
PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
new NumberAxis("X"));
PaintScaleLegend l2 = new PaintScaleLegend(new GrayPaintScale(),
new NumberAxis("X"));
assertTrue(l1.equals(l2));
assertTrue(l2.equals(l1));
// paintScale
l1.setScale(new LookupPaintScale());
assertFalse(l1.equals(l2));
l2.setScale(new LookupPaintScale());
assertTrue(l1.equals(l2));
// axis
l1.setAxis(new NumberAxis("Axis 2"));
assertFalse(l1.equals(l2));
l2.setAxis(new NumberAxis("Axis 2"));
assertTrue(l1.equals(l2));
// axisLocation
l1.setAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
assertFalse(l1.equals(l2));
l2.setAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
assertTrue(l1.equals(l2));
// axisOffset
l1.setAxisOffset(99.0);
assertFalse(l1.equals(l2));
l2.setAxisOffset(99.0);
assertTrue(l1.equals(l2));
// stripWidth
l1.setStripWidth(99.0);
assertFalse(l1.equals(l2));
l2.setStripWidth(99.0);
assertTrue(l1.equals(l2));
// stripOutlineVisible
l1.setStripOutlineVisible(!l1.isStripOutlineVisible());
assertFalse(l1.equals(l2));
l2.setStripOutlineVisible(l1.isStripOutlineVisible());
assertTrue(l1.equals(l2));
// stripOutlinePaint
l1.setStripOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.blue));
assertFalse(l1.equals(l2));
l2.setStripOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.blue));
assertTrue(l1.equals(l2));
// stripOutlineStroke
l1.setStripOutlineStroke(new BasicStroke(1.1f));
assertFalse(l1.equals(l2));
l2.setStripOutlineStroke(new BasicStroke(1.1f));
assertTrue(l1.equals(l2));
// backgroundPaint
l1.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.blue));
assertFalse(l1.equals(l2));
l2.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.blue));
assertTrue(l1.equals(l2));
l1.setSubdivisionCount(99);
assertFalse(l1.equals(l2));
l2.setSubdivisionCount(99);
assertTrue(l1.equals(l2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
public void testHashcode() {
PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
new NumberAxis("X"));
PaintScaleLegend l2 = new PaintScaleLegend(new GrayPaintScale(),
new NumberAxis("X"));
assertTrue(l1.equals(l2));
int h1 = l1.hashCode();
int h2 = l2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
new NumberAxis("X"));
PaintScaleLegend l2 = null;
try {
l2 = (PaintScaleLegend) l1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(l1 != l2);
assertTrue(l1.getClass() == l2.getClass());
assertTrue(l1.equals(l2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(),
new NumberAxis("X"));
PaintScaleLegend l2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(l1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
l2 = (PaintScaleLegend) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(l1, l2);
}
}