/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, 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.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* --------------------------
* LookupPaintScaleTests.java
* --------------------------
* (C) Copyright 2006-2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 05-Jul-2006 : Version 1 (DG);
* 31-Jan-2007 : Additional serialization tests (DG);
* 07-Mar-2007 : Added new tests (DG);
* 09-Mar-2007 : Check independence in testCloning() (DG);
*
*/
package org.jfree.chart.renderer.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.renderer.LookupPaintScale;
/**
* Tests for the {@link LookupPaintScale} class.
*/
public class LookupPaintScaleTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(LookupPaintScaleTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public LookupPaintScaleTests(String name) {
super(name);
}
/**
* A test for the equals() method.
*/
public void testEquals() {
LookupPaintScale g1 = new LookupPaintScale();
LookupPaintScale g2 = new LookupPaintScale();
assertTrue(g1.equals(g2));
assertTrue(g2.equals(g1));
g1 = new LookupPaintScale(1.0, 2.0, Color.red);
assertFalse(g1.equals(g2));
g2 = new LookupPaintScale(1.0, 2.0, Color.red);
assertTrue(g1.equals(g2));
g1.add(new Double(1.5), new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
4.0f, Color.blue));
assertFalse(g1.equals(g2));
g2.add(new Double(1.5), new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
4.0f, Color.blue));
assertTrue(g1.equals(g2));
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
LookupPaintScale g1 = new LookupPaintScale();
LookupPaintScale g2 = null;
try {
g2 = (LookupPaintScale) g1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(g1 != g2);
assertTrue(g1.getClass() == g2.getClass());
assertTrue(g1.equals(g2));
// check independence
g1.add(new Double(0.5), Color.red);
assertFalse(g1.equals(g2));
g2.add(new Double(0.5), Color.red);
assertTrue(g1.equals(g2));
// try with gradient paint
g1 = new LookupPaintScale(1.0, 2.0, new GradientPaint(1.0f, 2.0f,
Color.red, 3.0f, 4.0f, Color.green));
g1.add(new Double(1.5), new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
4.0f, Color.blue));
g2 = null;
try {
g2 = (LookupPaintScale) g1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(g1 != g2);
assertTrue(g1.getClass() == g2.getClass());
assertTrue(g1.equals(g2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
LookupPaintScale g1 = new LookupPaintScale();
LookupPaintScale g2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(g1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
g2 = (LookupPaintScale) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(g1, g2);
g1 = new LookupPaintScale(1.0, 2.0, new GradientPaint(1.0f, 2.0f,
Color.red, 3.0f, 4.0f, Color.yellow));
g1.add(new Double(1.5), new GradientPaint(1.1f, 2.2f, Color.red, 3.3f,
4.4f, Color.blue));
g2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(g1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
g2 = (LookupPaintScale) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(g1, g2);
}
private static final double EPSILON = 0.0000000001;
/**
* Some checks for the default constructor.
*/
public void testConstructor1() {
LookupPaintScale s = new LookupPaintScale();
assertEquals(0.0, s.getLowerBound(), EPSILON);
assertEquals(1.0, s.getUpperBound(), EPSILON);
}
/**
* Some checks for the other constructor.
*/
public void testConstructor2() {
LookupPaintScale s = new LookupPaintScale(1.0, 2.0, Color.red);
assertEquals(1.0, s.getLowerBound(), EPSILON);
assertEquals(2.0, s.getUpperBound(), EPSILON);
assertEquals(Color.red, s.getDefaultPaint());
}
/**
* Some general checks for the lookup table.
*/
public void testGeneral() {
LookupPaintScale s = new LookupPaintScale(0.0, 100.0, Color.black);
assertEquals(Color.black, s.getPaint(-1.0));
assertEquals(Color.black, s.getPaint(0.0));
assertEquals(Color.black, s.getPaint(50.0));
assertEquals(Color.black, s.getPaint(100.0));
assertEquals(Color.black, s.getPaint(101.0));
s.add(new Double(50.0), Color.blue);
assertEquals(Color.black, s.getPaint(-1.0));
assertEquals(Color.black, s.getPaint(0.0));
assertEquals(Color.blue, s.getPaint(50.0));
assertEquals(Color.blue, s.getPaint(100.0));
assertEquals(Color.black, s.getPaint(101.0));
s.add(new Double(50.0), Color.red);
assertEquals(Color.black, s.getPaint(-1.0));
assertEquals(Color.black, s.getPaint(0.0));
assertEquals(Color.red, s.getPaint(50.0));
assertEquals(Color.red, s.getPaint(100.0));
assertEquals(Color.black, s.getPaint(101.0));
s.add(new Double(25.0), Color.green);
assertEquals(Color.black, s.getPaint(-1.0));
assertEquals(Color.black, s.getPaint(0.0));
assertEquals(Color.green, s.getPaint(25.0));
assertEquals(Color.red, s.getPaint(50.0));
assertEquals(Color.red, s.getPaint(100.0));
assertEquals(Color.black, s.getPaint(101.0));
s.add(new Double(75.0), Color.yellow);
assertEquals(Color.black, s.getPaint(-1.0));
assertEquals(Color.black, s.getPaint(0.0));
assertEquals(Color.green, s.getPaint(25.0));
assertEquals(Color.red, s.getPaint(50.0));
assertEquals(Color.yellow, s.getPaint(75.0));
assertEquals(Color.yellow, s.getPaint(100.0));
assertEquals(Color.black, s.getPaint(101.0));
}
}