/* ===========================================================
* 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.]
*
* -------------------------
* XYBlockRendererTests.java
* -------------------------
* (C) Copyright 2006, 2007, 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);
*
*/
package org.jfree.chart.renderer.xy.junit;
import java.awt.Color;
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.GrayPaintScale;
import org.jfree.chart.renderer.LookupPaintScale;
import org.jfree.chart.renderer.xy.XYBlockRenderer;
import org.jfree.data.Range;
import org.jfree.data.xy.DefaultXYZDataset;
/**
* Tests for the {@link XYBlockRenderer} class.
*/
public class XYBlockRendererTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(XYBlockRendererTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public XYBlockRendererTests(String name) {
super(name);
}
/**
* Test that the equals() method distinguishes all fields.
*/
public void testEquals() {
// default instances
XYBlockRenderer r1 = new XYBlockRenderer();
XYBlockRenderer r2 = new XYBlockRenderer();
assertTrue(r1.equals(r2));
assertTrue(r2.equals(r1));
// blockHeight
r1.setBlockHeight(2.0);
assertFalse(r1.equals(r2));
r2.setBlockHeight(2.0);
assertTrue(r1.equals(r2));
// blockWidth
r1.setBlockWidth(2.0);
assertFalse(r1.equals(r2));
r2.setBlockWidth(2.0);
assertTrue(r1.equals(r2));
// paintScale
r1.setPaintScale(new GrayPaintScale(0.0, 1.0));
assertFalse(r1.equals(r2));
r2.setPaintScale(new GrayPaintScale(0.0, 1.0));
assertTrue(r1.equals(r2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
public void testHashcode() {
XYBlockRenderer r1 = new XYBlockRenderer();
XYBlockRenderer r2 = new XYBlockRenderer();
assertTrue(r1.equals(r2));
int h1 = r1.hashCode();
int h2 = r2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
XYBlockRenderer r1 = new XYBlockRenderer();
LookupPaintScale scale1 = new LookupPaintScale();
r1.setPaintScale(scale1);
XYBlockRenderer r2 = null;
try {
r2 = (XYBlockRenderer) r1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(r1 != r2);
assertTrue(r1.getClass() == r2.getClass());
assertTrue(r1.equals(r2));
// check independence
scale1.add(0.5, Color.red);
assertFalse(r1.equals(r2));
LookupPaintScale scale2 = (LookupPaintScale) r2.getPaintScale();
scale2.add(0.5, Color.red);
assertTrue(r1.equals(r2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
XYBlockRenderer r1 = new XYBlockRenderer();
XYBlockRenderer r2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(r1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
r2 = (XYBlockRenderer) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(r1, r2);
}
/**
* A simple test for bug 1766646.
*/
public void testBug1766646A() {
XYBlockRenderer r = new XYBlockRenderer();
Range range = r.findDomainBounds(null);
assertTrue(range == null);
DefaultXYZDataset emptyDataset = new DefaultXYZDataset();
range = r.findDomainBounds(emptyDataset);
assertTrue(range == null);
}
/**
* A simple test for bug 1766646.
*/
public void testBug1766646B() {
XYBlockRenderer r = new XYBlockRenderer();
Range range = r.findRangeBounds(null);
assertTrue(range == null);
DefaultXYZDataset emptyDataset = new DefaultXYZDataset();
range = r.findRangeBounds(emptyDataset);
assertTrue(range == null);
}
}