/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2013, 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 2006-2013, 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;
import org.junit.Test;
import java.awt.Color;
import java.awt.GradientPaint;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
/**
* Tests for the {@link LookupPaintScale} class.
*/
public class LookupPaintScaleTest {
/**
* A test for the equals() method.
*/
@Test
public void testEquals() {
LookupPaintScale g1 = new LookupPaintScale();
LookupPaintScale g2 = new LookupPaintScale();
assertEquals(g1, g2);
assertEquals(g2, g1);
g1 = new LookupPaintScale(1.0, 2.0, Color.RED);
assertFalse(g1.equals(g2));
g2 = new LookupPaintScale(1.0, 2.0, Color.RED);
assertEquals(g1, g2);
g1.add(1.5, new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
Color.BLUE));
assertFalse(g1.equals(g2));
g2.add(1.5, new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
Color.BLUE));
assertEquals(g1, g2);
}
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
LookupPaintScale g1 = new LookupPaintScale();
LookupPaintScale g2 = (LookupPaintScale) g1.clone();
assertNotSame(g1, g2);
assertSame(g1.getClass(), g2.getClass());
assertEquals(g1, g2);
// check independence
g1.add(0.5, Color.RED);
assertFalse(g1.equals(g2));
g2.add(0.5, Color.RED);
assertEquals(g1, 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(1.5, new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
Color.BLUE));
g2 = (LookupPaintScale) g1.clone();
assertNotSame(g1, g2);
assertSame(g1.getClass(), g2.getClass());
assertEquals(g1, g2);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
LookupPaintScale g1 = new LookupPaintScale();
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(g1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
LookupPaintScale g2 = (LookupPaintScale) in.readObject();
in.close();
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(1.5, new GradientPaint(1.1f, 2.2f, Color.RED, 3.3f, 4.4f,
Color.BLUE));
buffer = new ByteArrayOutputStream();
out = new ObjectOutputStream(buffer);
out.writeObject(g1);
out.close();
in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
g2 = (LookupPaintScale) in.readObject();
in.close();
assertEquals(g1, g2);
}
private static final double EPSILON = 0.0000000001;
/**
* Some checks for the default constructor.
*/
@Test
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.
*/
@Test
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.
*/
@Test
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(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(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(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(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));
}
/**
* Some checks for special values in the getPaint() method.
*/
@Test
public void testSpecialValues() {
LookupPaintScale s = new LookupPaintScale(0.0, 100.0, Color.black);
s.add(25.0, Color.green);
s.add(50.0, Color.blue);
s.add(75.0, Color.yellow);
assertEquals(Color.black, s.getPaint(Double.NaN));
assertEquals(Color.black, s.getPaint(Double.POSITIVE_INFINITY));
assertEquals(Color.black, s.getPaint(Double.NEGATIVE_INFINITY));
}
}