/* ===========================================================
* 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.]
*
* --------------------------
* DefaultXYDatasetTests.java
* --------------------------
* (C) Copyright 2006, 2007, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 06-Jul-2006 : Version 1 (DG);
* 02-Nov-2006 : Added testAddSeries() method (DG);
*
*/
package org.jfree.data.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.data.xy.DefaultXYDataset;
/**
* Tests for {@link DefaultXYDataset}.
*/
public class DefaultXYDatasetTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(DefaultXYDatasetTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public DefaultXYDatasetTests(String name) {
super(name);
}
/**
* Confirm that the equals method can distinguish all the required fields.
*/
public void testEquals() {
DefaultXYDataset d1 = new DefaultXYDataset();
DefaultXYDataset d2 = new DefaultXYDataset();
assertTrue(d1.equals(d2));
assertTrue(d2.equals(d1));
double[] x1 = new double[] {1.0, 2.0, 3.0};
double[] y1 = new double[] {4.0, 5.0, 6.0};
double[][] data1 = new double[][] {x1, y1};
double[] x2 = new double[] {1.0, 2.0, 3.0};
double[] y2 = new double[] {4.0, 5.0, 6.0};
double[][] data2 = new double[][] {x2, y2};
d1.addSeries("S1", data1);
assertFalse(d1.equals(d2));
d2.addSeries("S1", data2);
assertTrue(d1.equals(d2));
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
DefaultXYDataset d1 = new DefaultXYDataset();
DefaultXYDataset d2 = null;
try {
d2 = (DefaultXYDataset) d1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(d1 != d2);
assertTrue(d1.getClass() == d2.getClass());
assertTrue(d1.equals(d2));
// try a dataset with some content...
double[] x1 = new double[] {1.0, 2.0, 3.0};
double[] y1 = new double[] {4.0, 5.0, 6.0};
double[][] data1 = new double[][] {x1, y1};
d1.addSeries("S1", data1);
try {
d2 = (DefaultXYDataset) d1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(d1 != d2);
assertTrue(d1.getClass() == d2.getClass());
assertTrue(d1.equals(d2));
// check that the clone doesn't share the same underlying arrays.
x1[1] = 2.2;
assertFalse(d1.equals(d2));
x1[1] = 2.0;
assertTrue(d1.equals(d2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
DefaultXYDataset d1 = new DefaultXYDataset();
DefaultXYDataset d2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(d1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray())
);
d2 = (DefaultXYDataset) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(d1, d2);
// try a dataset with some content...
double[] x1 = new double[] {1.0, 2.0, 3.0};
double[] y1 = new double[] {4.0, 5.0, 6.0};
double[][] data1 = new double[][] {x1, y1};
d1.addSeries("S1", data1);
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(d1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray())
);
d2 = (DefaultXYDataset) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(d1, d2);
}
/**
* Some checks for the getSeriesKey(int) method.
*/
public void testGetSeriesKey() {
DefaultXYDataset d = createSampleDataset1();
assertEquals("S1", d.getSeriesKey(0));
assertEquals("S2", d.getSeriesKey(1));
// check for series key out of bounds
boolean pass = false;
try {
/*Comparable k =*/ d.getSeriesKey(-1);
}
catch (IllegalArgumentException e) {
pass = true;
}
assertTrue(pass);
pass = false;
try {
/*Comparable k =*/ d.getSeriesKey(2);
}
catch (IllegalArgumentException e) {
pass = true;
}
assertTrue(pass);
}
/**
* Some checks for the indexOf(Comparable) method.
*/
public void testIndexOf() {
DefaultXYDataset d = createSampleDataset1();
assertEquals(0, d.indexOf("S1"));
assertEquals(1, d.indexOf("S2"));
assertEquals(-1, d.indexOf("Green Eggs and Ham"));
assertEquals(-1, d.indexOf(null));
}
static final double EPSILON = 0.0000000001;
/**
* Some tests for the addSeries() method.
*/
public void testAddSeries() {
DefaultXYDataset d = new DefaultXYDataset();
d.addSeries("S1", new double[][] {{1.0}, {2.0}});
assertEquals(1, d.getSeriesCount());
assertEquals("S1", d.getSeriesKey(0));
// check that adding a series will overwrite the old series
d.addSeries("S1", new double[][] {{11.0}, {12.0}});
assertEquals(1, d.getSeriesCount());
assertEquals(12.0, d.getYValue(0, 0), EPSILON);
// check null key
boolean pass = false;
try
{
d.addSeries(null, new double[][] {{1.0}, {2.0}});
}
catch (IllegalArgumentException e)
{
pass = true;
}
assertTrue(pass);
}
/**
* Creates a sample dataset for testing.
*
* @return A sample dataset.
*/
public DefaultXYDataset createSampleDataset1() {
DefaultXYDataset d = new DefaultXYDataset();
double[] x1 = new double[] {1.0, 2.0, 3.0};
double[] y1 = new double[] {4.0, 5.0, 6.0};
double[][] data1 = new double[][] {x1, y1};
d.addSeries("S1", data1);
double[] x2 = new double[] {1.0, 2.0, 3.0};
double[] y2 = new double[] {4.0, 5.0, 6.0};
double[][] data2 = new double[][] {x2, y2};
d.addSeries("S2", data2);
return d;
}
}