/* ===========================================================
* 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.]
*
* -----------------------------
* IntervalBarRendererTests.java
* -----------------------------
* (C) Copyright 2003-2009, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 25-Mar-2003 : Version 1 (DG);
* 23-Apr-2008 : Added testPublicCloneable (DG);
* 16-May-2009 : Added testFindRangeBounds() (DG);
*
*/
package org.jfree.chart.renderer.category.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.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.IntervalBarRenderer;
import org.jfree.data.Range;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.category.DefaultIntervalCategoryDataset;
import org.jfree.util.PublicCloneable;
/**
* Tests for the {@link IntervalBarRenderer} class.
*/
public class IntervalBarRendererTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(IntervalBarRendererTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public IntervalBarRendererTests(String name) {
super(name);
}
/**
* Problem that the equals() method distinguishes all fields.
*/
public void testEquals() {
IntervalBarRenderer r1 = new IntervalBarRenderer();
IntervalBarRenderer r2 = new IntervalBarRenderer();
assertEquals(r1, r2);
// the renderer should not be equal to a BarRenderer
BarRenderer br = new BarRenderer();
assertFalse(r1.equals(br));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
public void testHashcode() {
IntervalBarRenderer r1 = new IntervalBarRenderer();
IntervalBarRenderer r2 = new IntervalBarRenderer();
assertTrue(r1.equals(r2));
int h1 = r1.hashCode();
int h2 = r2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
IntervalBarRenderer r1 = new IntervalBarRenderer();
IntervalBarRenderer r2 = null;
try {
r2 = (IntervalBarRenderer) r1.clone();
}
catch (CloneNotSupportedException e) {
System.err.println("Failed to clone.");
}
assertTrue(r1 != r2);
assertTrue(r1.getClass() == r2.getClass());
assertTrue(r1.equals(r2));
}
/**
* Check that this class implements PublicCloneable.
*/
public void testPublicCloneable() {
IntervalBarRenderer r1 = new IntervalBarRenderer();
assertTrue(r1 instanceof PublicCloneable);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
IntervalBarRenderer r1 = new IntervalBarRenderer();
IntervalBarRenderer 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 = (IntervalBarRenderer) 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 {
double[][] starts = new double[][] {{0.1, 0.2, 0.3},
{0.3, 0.4, 0.5}};
double[][] ends = new double[][] {{0.5, 0.6, 0.7}, {0.7, 0.8, 0.9}};
DefaultIntervalCategoryDataset dataset
= new DefaultIntervalCategoryDataset(starts, ends);
IntervalBarRenderer renderer = new IntervalBarRenderer();
CategoryPlot plot = new CategoryPlot(dataset,
new CategoryAxis("Category"), new NumberAxis("Value"),
renderer);
JFreeChart chart = new JFreeChart(plot);
/* BufferedImage image = */ chart.createBufferedImage(300, 200,
null);
success = true;
}
catch (NullPointerException e) {
e.printStackTrace();
success = false;
}
assertTrue(success);
}
/**
* Some checks for the findRangeBounds() method.
*/
public void testFindRangeBounds() {
IntervalBarRenderer r = new IntervalBarRenderer();
assertNull(r.findRangeBounds(null));
// an empty dataset should return a null range
DefaultIntervalCategoryDataset dataset
= new DefaultIntervalCategoryDataset(new double[0][0],
new double[0][0]);
assertNull(r.findRangeBounds(dataset));
double[][] starts = new double[][] {{0.1, 0.2, 0.3}, {0.3, 0.4, 0.5}};
double[][] ends = new double[][] {{0.5, 0.6, 0.7}, {0.7, 0.8, 0.9}};
dataset = new DefaultIntervalCategoryDataset(starts, ends);
assertEquals(new Range(0.0, 0.9), r.findRangeBounds(dataset));
r.setIncludeBaseInRange(false);
assertEquals(new Range(0.1, 0.9), r.findRangeBounds(dataset));
r.setIncludeBaseInRange(true);
r.setSeriesVisible(1, Boolean.FALSE);
assertEquals(new Range(0.0, 0.7), r.findRangeBounds(dataset));
}
}