/* ===========================================================
* 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.]
*
* -------------------------
* FastScatterPlotTests.java
* -------------------------
* (C) Copyright 2003-2009, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 18-Mar-2003 : Version 1 (DG);
* 29-Jan-2009 : Updated testEquals() (DG);
* 26-Mar-2009 : Updated testEquals() for new panning fields (DG);
*
*/
package org.jfree.chart.plot;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.junit.Test;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Stroke;
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;
/**
* Tests for the {@link FastScatterPlot} class.
*/
public class FastScatterPlotTest {
/**
* Some checks for the equals() method.
*/
@Test
public void testEquals() {
FastScatterPlot plot1 = new FastScatterPlot();
FastScatterPlot plot2 = new FastScatterPlot();
assertEquals(plot1, plot2);
assertEquals(plot2, plot1);
plot1.setPaint(new GradientPaint(1.0f, 2.0f, Color.RED,
3.0f, 4.0f, Color.yellow));
assertFalse(plot1.equals(plot2));
plot2.setPaint(new GradientPaint(1.0f, 2.0f, Color.RED,
3.0f, 4.0f, Color.yellow));
assertEquals(plot1, plot2);
plot1.setDomainGridlinesVisible(false);
assertFalse(plot1.equals(plot2));
plot2.setDomainGridlinesVisible(false);
assertEquals(plot1, plot2);
plot1.setDomainGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.BLUE,
3.0f, 4.0f, Color.yellow));
assertFalse(plot1.equals(plot2));
plot2.setDomainGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.BLUE,
3.0f, 4.0f, Color.yellow));
assertEquals(plot1, plot2);
Stroke s = new BasicStroke(1.5f);
plot1.setDomainGridlineStroke(s);
assertFalse(plot1.equals(plot2));
plot2.setDomainGridlineStroke(s);
assertEquals(plot1, plot2);
plot1.setRangeGridlinesVisible(false);
assertFalse(plot1.equals(plot2));
plot2.setRangeGridlinesVisible(false);
assertEquals(plot1, plot2);
plot1.setRangeGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.green,
3.0f, 4.0f, Color.yellow));
assertFalse(plot1.equals(plot2));
plot2.setRangeGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.green,
3.0f, 4.0f, Color.yellow));
assertEquals(plot1, plot2);
Stroke s2 = new BasicStroke(1.5f);
plot1.setRangeGridlineStroke(s2);
assertFalse(plot1.equals(plot2));
plot2.setRangeGridlineStroke(s2);
assertEquals(plot1, plot2);
plot1.setDomainPannable(true);
assertFalse(plot1.equals(plot2));
plot2.setDomainPannable(true);
assertEquals(plot1, plot2);
plot1.setRangePannable(true);
assertFalse(plot1.equals(plot2));
plot2.setRangePannable(true);
assertEquals(plot1, plot2);
}
/**
* Some tests for the data array equality in the equals() method.
*/
@Test
public void testEquals2() {
FastScatterPlot plot1 = new FastScatterPlot();
FastScatterPlot plot2 = new FastScatterPlot();
assertEquals(plot1, plot2);
assertEquals(plot2, plot1);
float[][] a = new float[2][];
float[][] b = new float[2][];
plot1.setData(a);
assertFalse(plot1.equals(plot2));
plot2.setData(b);
assertEquals(plot1, plot2);
a[0] = new float[6];
assertFalse(plot1.equals(plot2));
b[0] = new float[6];
assertEquals(plot1, plot2);
a[0][0] = 1.0f;
assertFalse(plot1.equals(plot2));
b[0][0] = 1.0f;
assertEquals(plot1, plot2);
a[0][1] = Float.NaN;
assertFalse(plot1.equals(plot2));
b[0][1] = Float.NaN;
assertEquals(plot1, plot2);
a[0][2] = Float.POSITIVE_INFINITY;
assertFalse(plot1.equals(plot2));
b[0][2] = Float.POSITIVE_INFINITY;
assertEquals(plot1, plot2);
a[0][3] = Float.NEGATIVE_INFINITY;
assertFalse(plot1.equals(plot2));
b[0][3] = Float.NEGATIVE_INFINITY;
assertEquals(plot1, plot2);
}
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
FastScatterPlot p1 = new FastScatterPlot();
FastScatterPlot p2 = (FastScatterPlot) p1.clone();
assertNotSame(p1, p2);
assertSame(p1.getClass(), p2.getClass());
assertEquals(p1, p2);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
float[][] data = createData();
ValueAxis domainAxis = new NumberAxis("X");
ValueAxis rangeAxis = new NumberAxis("Y");
FastScatterPlot p1 = new FastScatterPlot(data, domainAxis, rangeAxis);
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(p1);
out.close();
ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
buffer.toByteArray()));
FastScatterPlot p2 = (FastScatterPlot) in.readObject();
in.close();
assertEquals(p1, p2);
}
/**
* Draws the chart with a <code>null</code> info object to make sure that
* no exceptions are thrown.
*/
@Test
public void testDrawWithNullInfo() {
float[][] data = createData();
ValueAxis domainAxis = new NumberAxis("X");
ValueAxis rangeAxis = new NumberAxis("Y");
FastScatterPlot plot = new FastScatterPlot(data, domainAxis,
rangeAxis);
JFreeChart chart = new JFreeChart(plot);
/* BufferedImage image = */ chart.createBufferedImage(300, 200,
null);
//FIXME we should really be asserting a value here
}
/**
* Populates the data array with random values.
*
* @return Random data.
*/
private float[][] createData() {
float[][] result = new float[2][1000];
for (int i = 0; i < result[0].length; i++) {
float x = (float) i + 100;
result[0][i] = x;
result[1][i] = 100 + (float) Math.random() * 1000;
}
return result;
}
}