/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2012, 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.]
*
* -------------------------
* XYBlockRendererTests.java
* -------------------------
* (C) Copyright 2006-2011, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 05-Jul-2006 : Version 1 (DG);
* 09-Mar-2007 : Added independence check to testCloning (DG);
* 22-Apr-2008 : Added testPublicCloneable (DG);
* 20-Oct-2011 : Added testFindDomainBounds() and testFindRangeBounds() (DG);
*
*/
package org.jfree.chart.renderer.xy;
import org.jfree.chart.renderer.GrayPaintScale;
import org.jfree.chart.renderer.LookupPaintScale;
import org.jfree.chart.util.PublicCloneable;
import org.jfree.data.Range;
import org.jfree.data.xy.DefaultXYZDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.junit.Test;
import java.awt.Color;
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.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
/**
* Tests for the {@link XYBlockRenderer} class.
*/
public class XYBlockRendererTest {
private static final double EPSILON = 0.0000000001;
/**
* Test that the equals() method distinguishes all fields.
*/
@Test
public void testEquals() {
// default instances
XYBlockRenderer r1 = new XYBlockRenderer();
XYBlockRenderer r2 = new XYBlockRenderer();
assertEquals(r1, r2);
assertEquals(r2, r1);
// blockHeight
r1.setBlockHeight(2.0);
assertFalse(r1.equals(r2));
r2.setBlockHeight(2.0);
assertEquals(r1, r2);
// blockWidth
r1.setBlockWidth(2.0);
assertFalse(r1.equals(r2));
r2.setBlockWidth(2.0);
assertEquals(r1, r2);
// paintScale
r1.setPaintScale(new GrayPaintScale(0.0, 1.0));
assertFalse(r1.equals(r2));
r2.setPaintScale(new GrayPaintScale(0.0, 1.0));
assertEquals(r1, r2);
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashcode() {
XYBlockRenderer r1 = new XYBlockRenderer();
XYBlockRenderer r2 = new XYBlockRenderer();
assertEquals(r1, r2);
int h1 = r1.hashCode();
int h2 = r2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
XYBlockRenderer r1 = new XYBlockRenderer();
LookupPaintScale scale1 = new LookupPaintScale();
r1.setPaintScale(scale1);
XYBlockRenderer r2 = (XYBlockRenderer) r1.clone();
assertNotSame(r1, r2);
assertSame(r1.getClass(), r2.getClass());
assertEquals(r1, r2);
// check independence
scale1.add(0.5, Color.RED);
assertFalse(r1.equals(r2));
LookupPaintScale scale2 = (LookupPaintScale) r2.getPaintScale();
scale2.add(0.5, Color.RED);
assertEquals(r1, r2);
}
/**
* Verify that this class implements {@link PublicCloneable}.
*/
@Test
public void testPublicCloneable() {
XYBlockRenderer r1 = new XYBlockRenderer();
assertTrue(r1 instanceof PublicCloneable);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
XYBlockRenderer r1 = new XYBlockRenderer();
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(r1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
XYBlockRenderer r2 = (XYBlockRenderer) in.readObject();
in.close();
assertEquals(r1, r2);
}
/**
* A simple test for bug 1766646.
*/
@Test
public void testBug1766646A() {
XYBlockRenderer r = new XYBlockRenderer();
Range range = r.findDomainBounds(null);
assertNull(range);
DefaultXYZDataset emptyDataset = new DefaultXYZDataset();
range = r.findDomainBounds(emptyDataset);
assertNull(range);
}
/**
* A simple test for bug 1766646.
*/
@Test
public void testBug1766646B() {
XYBlockRenderer r = new XYBlockRenderer();
Range range = r.findRangeBounds(null);
assertNull(range);
DefaultXYZDataset emptyDataset = new DefaultXYZDataset();
range = r.findRangeBounds(emptyDataset);
assertNull(range);
}
/**
* Some tests for the findRangeBounds() method.
*/
@Test
public void testFindRangeBounds() {
XYBlockRenderer renderer = new XYBlockRenderer();
assertNull(renderer.findRangeBounds(null));
XYSeriesCollection dataset = new XYSeriesCollection();
XYSeries series = new XYSeries("S1");
series.add(1.0, null);
dataset.addSeries(series);
Range r = renderer.findRangeBounds(dataset);
assertNull(r);
}
/**
* Some tests for the findDomainBounds() method.
*/
@Test
public void testFindDomainBounds() {
XYBlockRenderer renderer = new XYBlockRenderer();
assertNull(renderer.findRangeBounds(null));
XYSeriesCollection dataset = new XYSeriesCollection();
XYSeries series = new XYSeries("S1");
series.add(1.0, null);
dataset.addSeries(series);
Range r = renderer.findDomainBounds(dataset);
assertEquals(0.5, r.getLowerBound(), EPSILON);
assertEquals(1.5, r.getUpperBound(), EPSILON);
dataset.removeAllSeries();
r = renderer.findDomainBounds(dataset);
assertNull(r);
}
}