/* ===========================================================
* 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.]
*
* ----------------------------
* XYStepAreaRendererTests.java
* ----------------------------
* (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): Matthias Rose;
*
* Changes
* -------
* 25-Mar-2003 : Version 1 (DG);
* 26-Sep-2003 : copied XYStepRendererTests.java and used for
* testing XYStepAreaRenderer (MR);
* 14-Feb-2007 : Extended testEquals() (DG);
* 22-Apr-2008 : Added testPublicCloneable (DG);
*
*/
package org.jfree.chart.renderer.xy.junit;
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.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYStepAreaRenderer;
import org.jfree.data.xy.DefaultTableXYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.util.PublicCloneable;
/**
* Tests for the {@link XYStepAreaRenderer} class.
*/
public class XYStepAreaRendererTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(XYStepAreaRendererTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public XYStepAreaRendererTests(String name) {
super(name);
}
/**
* Check that the equals() method distinguishes all fields.
*/
public void testEquals() {
XYStepAreaRenderer r1 = new XYStepAreaRenderer();
XYStepAreaRenderer r2 = new XYStepAreaRenderer();
assertEquals(r1, r2);
r1.setOutline(true);
assertFalse(r1.equals(r2));
r2.setOutline(true);
assertTrue(r1.equals(r2));
r1.setShapesVisible(true);
assertFalse(r1.equals(r2));
r2.setShapesVisible(true);
assertTrue(r1.equals(r2));
r1.setShapesFilled(true);
assertFalse(r1.equals(r2));
r2.setShapesFilled(true);
assertTrue(r1.equals(r2));
r1.setPlotArea(false);
assertFalse(r1.equals(r2));
r2.setPlotArea(false);
assertTrue(r1.equals(r2));
r1.setRangeBase(-1.0);
assertFalse(r1.equals(r2));
r2.setRangeBase(-1.0);
assertTrue(r1.equals(r2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
public void testHashcode() {
XYStepAreaRenderer r1 = new XYStepAreaRenderer();
XYStepAreaRenderer r2 = new XYStepAreaRenderer();
assertTrue(r1.equals(r2));
int h1 = r1.hashCode();
int h2 = r2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
XYStepAreaRenderer r1 = new XYStepAreaRenderer();
XYStepAreaRenderer r2 = null;
try {
r2 = (XYStepAreaRenderer) r1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(r1 != r2);
assertTrue(r1.getClass() == r2.getClass());
assertTrue(r1.equals(r2));
}
/**
* Verify that this class implements {@link PublicCloneable}.
*/
public void testPublicCloneable() {
XYStepAreaRenderer r1 = new XYStepAreaRenderer();
assertTrue(r1 instanceof PublicCloneable);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
XYStepAreaRenderer r1 = new XYStepAreaRenderer();
XYStepAreaRenderer 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 = (XYStepAreaRenderer) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
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).
*/
public void testDrawWithNullInfo() {
boolean success = false;
try {
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 XYStepAreaRenderer());
JFreeChart chart = new JFreeChart(plot);
/* BufferedImage image = */ chart.createBufferedImage(300, 200,
null);
success = true;
}
catch (NullPointerException e) {
e.printStackTrace();
success = false;
}
assertTrue(success);
}
}