/* ===========================================================
* 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.]
*
* ------------------------
* XYStepRendererTests.java
* ------------------------
* (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 25-Mar-2003 : Version 1 (DG);
* 14-Feb-2008 : Added checks for new code (DG);
* 22-Apr-2008 : Added testPublicCloneable() (DG);
*
*/
package org.jfree.chart.renderer.xy;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.util.PublicCloneable;
import org.jfree.data.xy.DefaultTableXYDataset;
import org.jfree.data.xy.XYSeries;
import org.junit.Test;
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;
import static org.junit.Assert.assertTrue;
/**
* Tests for the {@link XYStepRenderer} class.
*/
public class XYStepRendererTest {
/**
* Check that the equals() method distinguishes all fields.
*/
@Test
public void testEquals() {
XYStepRenderer r1 = new XYStepRenderer();
XYStepRenderer r2 = new XYStepRenderer();
assertEquals(r1, r2);
r1.setStepPoint(0.44);
assertFalse(r1.equals(r2));
r2.setStepPoint(0.44);
assertEquals(r1, r2);
// try something from the base class
r1.setDefaultCreateEntities(false);
assertFalse(r1.equals(r2));
r2.setDefaultCreateEntities(false);
assertEquals(r1, r2);
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashcode() {
XYStepRenderer r1 = new XYStepRenderer();
r1.setStepPoint(0.123);
XYStepRenderer r2 = new XYStepRenderer();
r2.setStepPoint(0.123);
assertEquals(r1, r2);
int h1 = r1.hashCode();
int h2 = r2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
XYStepRenderer r1 = new XYStepRenderer();
XYStepRenderer r2 = (XYStepRenderer) r1.clone();
assertNotSame(r1, r2);
assertSame(r1.getClass(), r2.getClass());
assertEquals(r1, r2);
}
/**
* Verify that this class implements {@link PublicCloneable}.
*/
@Test
public void testPublicCloneable() {
XYStepRenderer r1 = new XYStepRenderer();
assertTrue(r1 instanceof PublicCloneable);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
XYStepRenderer r1 = new XYStepRenderer();
r1.setStepPoint(0.123);
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(r1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
XYStepRenderer r2 = (XYStepRenderer) in.readObject();
in.close();
assertEquals(r1, r2);
}
/**
* Draws the chart with a <code>null</code> info object to make sure that
* no exceptions are thrown (particularly by code in the renderer).
*/
@Test
public void testDrawWithNullInfo() {
DefaultTableXYDataset dataset = new DefaultTableXYDataset();
XYSeries s1 = new XYSeries("Series 1", true, false);
s1.add(5.0, 5.0);
s1.add(10.0, 15.5);
s1.add(15.0, 9.5);
s1.add(20.0, 7.5);
dataset.addSeries(s1);
XYSeries s2 = new XYSeries("Series 2", true, false);
s2.add(5.0, 5.0);
s2.add(10.0, 15.5);
s2.add(15.0, 9.5);
s2.add(20.0, 3.5);
dataset.addSeries(s2);
XYPlot plot = new XYPlot(dataset,
new NumberAxis("X"), new NumberAxis("Y"),
new XYStepRenderer());
JFreeChart chart = new JFreeChart(plot);
/* BufferedImage image = */ chart.createBufferedImage(300, 200,
null);
//FIXME we should be asserting a value here
}
/**
* Draws the chart with a <code>null</code> value in the dataset to make
* sure that no exceptions are thrown.
*/
@Test
public void testDrawWithNullValue() {
DefaultTableXYDataset dataset = new DefaultTableXYDataset();
XYSeries s1 = new XYSeries("Series 1", true, false);
s1.add(5.0, 5.0);
s1.add(10.0, null);
s1.add(15.0, 9.5);
s1.add(20.0, 7.5);
dataset.addSeries(s1);
XYSeries s2 = new XYSeries("Series 2", true, false);
s2.add(5.0, 5.0);
s2.add(10.0, 15.5);
s2.add(15.0, null);
s2.add(20.0, null);
dataset.addSeries(s2);
XYPlot plot = new XYPlot(dataset,
new NumberAxis("X"), new NumberAxis("Y"),
new XYStepRenderer());
JFreeChart chart = new JFreeChart(plot);
/* BufferedImage image = */ chart.createBufferedImage(300, 200,
null);
//FIXME we should be asserting a value here
}
}