jfreechart example source code file (PiePlotTests.java)
The jfreechart PiePlotTests.java source code
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2008, 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.]
*
* -----------------
* PiePlotTests.java
* -----------------
* (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 18-Mar-2003 : Version 1 (DG);
* 10-May-2005 : Strengthened equals() test (DG);
* 27-Sep-2006 : Added tests for the getBaseSectionPaint() method (DG);
* 23-Nov-2006 : Additional equals() and clone() tests (DG);
* 17-Apr-2007 : Added check for label generator that returns a null label (DG);
* 31-Mar-2008 : Updated testEquals();
*
*/
package org.jfree.chart.plot.junit;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.Stroke;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
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 java.text.AttributedString;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.LegendItemCollection;
import org.jfree.chart.labels.PieSectionLabelGenerator;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.labels.StandardPieToolTipGenerator;
import org.jfree.chart.plot.PieLabelLinkStyle;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.urls.CustomPieURLGenerator;
import org.jfree.chart.urls.StandardPieURLGenerator;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.util.Rotation;
/**
* Some tests for the {@link PiePlot} class.
*/
public class PiePlotTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(PiePlotTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public PiePlotTests(String name) {
super(name);
}
/**
* Test the equals() method.
*/
public void testEquals() {
PiePlot plot1 = new PiePlot();
PiePlot plot2 = new PiePlot();
assertTrue(plot1.equals(plot2));
assertTrue(plot2.equals(plot1));
// pieIndex...
plot1.setPieIndex(99);
assertFalse(plot1.equals(plot2));
plot2.setPieIndex(99);
assertTrue(plot1.equals(plot2));
// interiorGap...
plot1.setInteriorGap(0.15);
assertFalse(plot1.equals(plot2));
plot2.setInteriorGap(0.15);
assertTrue(plot1.equals(plot2));
// circular
plot1.setCircular(!plot1.isCircular());
assertFalse(plot1.equals(plot2));
plot2.setCircular(false);
assertTrue(plot1.equals(plot2));
// startAngle
plot1.setStartAngle(Math.PI);
assertFalse(plot1.equals(plot2));
plot2.setStartAngle(Math.PI);
assertTrue(plot1.equals(plot2));
// direction
plot1.setDirection(Rotation.ANTICLOCKWISE);
assertFalse(plot1.equals(plot2));
plot2.setDirection(Rotation.ANTICLOCKWISE);
assertTrue(plot1.equals(plot2));
// ignoreZeroValues
plot1.setIgnoreZeroValues(true);
plot2.setIgnoreZeroValues(false);
assertFalse(plot1.equals(plot2));
plot2.setIgnoreZeroValues(true);
assertTrue(plot1.equals(plot2));
// ignoreNullValues
plot1.setIgnoreNullValues(true);
plot2.setIgnoreNullValues(false);
assertFalse(plot1.equals(plot2));
plot2.setIgnoreNullValues(true);
assertTrue(plot1.equals(plot2));
// sectionPaint
plot1.setSectionPaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setSectionPaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// sectionPaintMap
plot1.setSectionPaint("A", new GradientPaint(1.0f, 2.0f, Color.blue,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setSectionPaint("A", new GradientPaint(1.0f, 2.0f, Color.blue,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// baseSectionPaint
plot1.setBaseSectionPaint(new GradientPaint(1.0f, 2.0f, Color.black,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setBaseSectionPaint(new GradientPaint(1.0f, 2.0f, Color.black,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// sectionOutlinesVisible
plot1.setSectionOutlinesVisible(false);
assertFalse(plot1.equals(plot2));
plot2.setSectionOutlinesVisible(false);
assertTrue(plot1.equals(plot2));
// sectionOutlinePaint
plot1.setSectionOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.cyan,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setSectionOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.cyan,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// sectionOutlinePaintList
plot1.setSectionOutlinePaint("A", new GradientPaint(1.0f, 2.0f,
Color.green, 3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setSectionOutlinePaint("A", new GradientPaint(1.0f, 2.0f,
Color.green, 3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// baseSectionOutlinePaint
plot1.setBaseSectionOutlinePaint(new GradientPaint(1.0f, 2.0f,
Color.gray, 3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setBaseSectionOutlinePaint(new GradientPaint(1.0f, 2.0f,
Color.gray, 3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// sectionOutlineStroke
plot1.setSectionOutlineStroke(new BasicStroke(1.0f));
assertFalse(plot1.equals(plot2));
plot2.setSectionOutlineStroke(new BasicStroke(1.0f));
assertTrue(plot1.equals(plot2));
// sectionOutlineStrokeList
plot1.setSectionOutlineStroke("A", new BasicStroke(1.0f));
assertFalse(plot1.equals(plot2));
plot2.setSectionOutlineStroke("A", new BasicStroke(1.0f));
assertTrue(plot1.equals(plot2));
// baseSectionOutlineStroke
plot1.setBaseSectionOutlineStroke(new BasicStroke(1.0f));
assertFalse(plot1.equals(plot2));
plot2.setBaseSectionOutlineStroke(new BasicStroke(1.0f));
assertTrue(plot1.equals(plot2));
// shadowPaint
plot1.setShadowPaint(new GradientPaint(1.0f, 2.0f, Color.orange,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setShadowPaint(new GradientPaint(1.0f, 2.0f, Color.orange,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// shadowXOffset
plot1.setShadowXOffset(4.4);
assertFalse(plot1.equals(plot2));
plot2.setShadowXOffset(4.4);
assertTrue(plot1.equals(plot2));
// shadowYOffset
plot1.setShadowYOffset(4.4);
assertFalse(plot1.equals(plot2));
plot2.setShadowYOffset(4.4);
assertTrue(plot1.equals(plot2));
// labelFont
plot1.setLabelFont(new Font("Serif", Font.PLAIN, 18));
assertFalse(plot1.equals(plot2));
plot2.setLabelFont(new Font("Serif", Font.PLAIN, 18));
assertTrue(plot1.equals(plot2));
// labelPaint
plot1.setLabelPaint(new GradientPaint(1.0f, 2.0f, Color.darkGray,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setLabelPaint(new GradientPaint(1.0f, 2.0f, Color.darkGray,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// labelBackgroundPaint
plot1.setLabelBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setLabelBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// labelOutlinePaint
plot1.setLabelOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.blue,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setLabelOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.blue,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// labelOutlineStroke
Stroke s = new BasicStroke(1.1f);
plot1.setLabelOutlineStroke(s);
assertFalse(plot1.equals(plot2));
plot2.setLabelOutlineStroke(s);
assertTrue(plot1.equals(plot2));
// labelShadowPaint
plot1.setLabelShadowPaint(new GradientPaint(1.0f, 2.0f, Color.yellow,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setLabelShadowPaint(new GradientPaint(1.0f, 2.0f, Color.yellow,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// explodePercentages
plot1.setExplodePercent("A", 0.33);
assertFalse(plot1.equals(plot2));
plot2.setExplodePercent("A", 0.33);
assertTrue(plot1.equals(plot2));
// labelGenerator
plot1.setLabelGenerator(new StandardPieSectionLabelGenerator(
"{2}{1}{0}"));
assertFalse(plot1.equals(plot2));
plot2.setLabelGenerator(new StandardPieSectionLabelGenerator(
"{2}{1}{0}"));
assertTrue(plot1.equals(plot2));
// labelFont
Font f = new Font("SansSerif", Font.PLAIN, 20);
plot1.setLabelFont(f);
assertFalse(plot1.equals(plot2));
plot2.setLabelFont(f);
assertTrue(plot1.equals(plot2));
// labelPaint
plot1.setLabelPaint(new GradientPaint(1.0f, 2.0f, Color.magenta,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setLabelPaint(new GradientPaint(1.0f, 2.0f, Color.magenta,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// maximumLabelWidth
plot1.setMaximumLabelWidth(0.33);
assertFalse(plot1.equals(plot2));
plot2.setMaximumLabelWidth(0.33);
assertTrue(plot1.equals(plot2));
// labelGap
plot1.setLabelGap(0.11);
assertFalse(plot1.equals(plot2));
plot2.setLabelGap(0.11);
assertTrue(plot1.equals(plot2));
// links visible
plot1.setLabelLinksVisible(false);
assertFalse(plot1.equals(plot2));
plot2.setLabelLinksVisible(false);
assertTrue(plot1.equals(plot2));
plot1.setLabelLinkStyle(PieLabelLinkStyle.QUAD_CURVE);
assertFalse(plot1.equals(plot2));
plot2.setLabelLinkStyle(PieLabelLinkStyle.QUAD_CURVE);
assertTrue(plot1.equals(plot2));
// linkMargin
plot1.setLabelLinkMargin(0.11);
assertFalse(plot1.equals(plot2));
plot2.setLabelLinkMargin(0.11);
assertTrue(plot1.equals(plot2));
// labelLinkPaint
plot1.setLabelLinkPaint(new GradientPaint(1.0f, 2.0f, Color.magenta,
3.0f, 4.0f, Color.white));
assertFalse(plot1.equals(plot2));
plot2.setLabelLinkPaint(new GradientPaint(1.0f, 2.0f, Color.magenta,
3.0f, 4.0f, Color.white));
assertTrue(plot1.equals(plot2));
// labelLinkStroke
plot1.setLabelLinkStroke(new BasicStroke(1.0f));
assertFalse(plot1.equals(plot2));
plot2.setLabelLinkStroke(new BasicStroke(1.0f));
assertTrue(plot1.equals(plot2));
// toolTipGenerator
plot1.setToolTipGenerator(
new StandardPieToolTipGenerator("{2}{1}{0}")
);
assertFalse(plot1.equals(plot2));
plot2.setToolTipGenerator(
new StandardPieToolTipGenerator("{2}{1}{0}")
);
assertTrue(plot1.equals(plot2));
// urlGenerator
plot1.setURLGenerator(new StandardPieURLGenerator("xx"));
assertFalse(plot1.equals(plot2));
plot2.setURLGenerator(new StandardPieURLGenerator("xx"));
assertTrue(plot1.equals(plot2));
// minimumArcAngleToDraw
plot1.setMinimumArcAngleToDraw(1.0);
assertFalse(plot1.equals(plot2));
plot2.setMinimumArcAngleToDraw(1.0);
assertTrue(plot1.equals(plot2));
// legendItemShape
plot1.setLegendItemShape(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
assertFalse(plot1.equals(plot2));
plot2.setLegendItemShape(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
assertTrue(plot1.equals(plot2));
// legendLabelGenerator
plot1.setLegendLabelGenerator(new StandardPieSectionLabelGenerator(
"{0} --> {1}"));
assertFalse(plot1.equals(plot2));
plot2.setLegendLabelGenerator(new StandardPieSectionLabelGenerator(
"{0} --> {1}"));
assertTrue(plot1.equals(plot2));
// legendLabelToolTipGenerator
plot1.setLegendLabelToolTipGenerator(
new StandardPieSectionLabelGenerator("{0} is {1}"));
assertFalse(plot1.equals(plot2));
plot2.setLegendLabelToolTipGenerator(
new StandardPieSectionLabelGenerator("{0} is {1}"));
assertTrue(plot1.equals(plot2));
// legendLabelURLGenerator
plot1.setLegendLabelURLGenerator(new StandardPieURLGenerator(
"index.html"));
assertFalse(plot1.equals(plot2));
plot2.setLegendLabelURLGenerator(new StandardPieURLGenerator(
"index.html"));
assertTrue(plot1.equals(plot2));
// autoPopulateSectionPaint
plot1.setAutoPopulateSectionPaint(false);
assertFalse(plot1.equals(plot2));
plot2.setAutoPopulateSectionPaint(false);
assertTrue(plot1.equals(plot2));
// autoPopulateSectionOutlinePaint
plot1.setAutoPopulateSectionOutlinePaint(true);
assertFalse(plot1.equals(plot2));
plot2.setAutoPopulateSectionOutlinePaint(true);
assertTrue(plot1.equals(plot2));
// autoPopulateSectionOutlineStroke
plot1.setAutoPopulateSectionOutlineStroke(true);
assertFalse(plot1.equals(plot2));
plot2.setAutoPopulateSectionOutlineStroke(true);
assertTrue(plot1.equals(plot2));
}
/**
* Some basic checks for the clone() method.
*/
public void testCloning() {
PiePlot p1 = new PiePlot();
PiePlot p2 = null;
try {
p2 = (PiePlot) p1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(p1 != p2);
assertTrue(p1.getClass() == p2.getClass());
assertTrue(p1.equals(p2));
}
/**
* Check cloning of the urlGenerator field.
*/
public void testCloning_URLGenerator() {
CustomPieURLGenerator generator = new CustomPieURLGenerator();
PiePlot p1 = new PiePlot();
p1.setURLGenerator(generator);
PiePlot p2 = null;
try {
p2 = (PiePlot) p1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(p1 != p2);
assertTrue(p1.getClass() == p2.getClass());
assertTrue(p1.equals(p2));
// check that the URL generator has been cloned
assertTrue(p1.getURLGenerator() != p2.getURLGenerator());
}
/**
* Check cloning of the legendItemShape field.
*/
public void testCloning_LegendItemShape() {
Rectangle shape = new Rectangle(-4, -4, 8, 8);
PiePlot p1 = new PiePlot();
p1.setLegendItemShape(shape);
PiePlot p2 = null;
try {
p2 = (PiePlot) p1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(p1 != p2);
assertTrue(p1.getClass() == p2.getClass());
assertTrue(p1.equals(p2));
// change the shape and make sure it only affects p1
shape.setRect(1.0, 2.0, 3.0, 4.0);
assertFalse(p1.equals(p2));
}
/**
* Check cloning of the legendLabelGenerator field.
*/
public void testCloning_LegendLabelGenerator() {
StandardPieSectionLabelGenerator generator
= new StandardPieSectionLabelGenerator();
PiePlot p1 = new PiePlot();
p1.setLegendLabelGenerator(generator);
PiePlot p2 = null;
try {
p2 = (PiePlot) p1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(p1 != p2);
assertTrue(p1.getClass() == p2.getClass());
assertTrue(p1.equals(p2));
// change the generator and make sure it only affects p1
generator.getNumberFormat().setMinimumFractionDigits(2);
assertFalse(p1.equals(p2));
}
/**
* Check cloning of the legendLabelToolTipGenerator field.
*/
public void testCloning_LegendLabelToolTipGenerator() {
StandardPieSectionLabelGenerator generator
= new StandardPieSectionLabelGenerator();
PiePlot p1 = new PiePlot();
p1.setLegendLabelToolTipGenerator(generator);
PiePlot p2 = null;
try {
p2 = (PiePlot) p1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(p1 != p2);
assertTrue(p1.getClass() == p2.getClass());
assertTrue(p1.equals(p2));
// change the generator and make sure it only affects p1
generator.getNumberFormat().setMinimumFractionDigits(2);
assertFalse(p1.equals(p2));
}
/**
* Check cloning of the legendLabelURLGenerator field.
*/
public void testCloning_LegendLabelURLGenerator() {
CustomPieURLGenerator generator = new CustomPieURLGenerator();
PiePlot p1 = new PiePlot();
p1.setLegendLabelURLGenerator(generator);
PiePlot p2 = null;
try {
p2 = (PiePlot) p1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(p1 != p2);
assertTrue(p1.getClass() == p2.getClass());
assertTrue(p1.equals(p2));
// check that the URL generator has been cloned
assertTrue(p1.getLegendLabelURLGenerator()
!= p2.getLegendLabelURLGenerator());
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
PiePlot p1 = new PiePlot(null);
PiePlot p2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(p1);
out.close();
ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
buffer.toByteArray()));
p2 = (PiePlot) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(p1, p2);
}
/**
* Some checks for the getLegendItems() method.
*/
public void testGetLegendItems() {
DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("Item 1", 1.0);
dataset.setValue("Item 2", 2.0);
dataset.setValue("Item 3", 0.0);
dataset.setValue("Item 4", null);
PiePlot plot = new PiePlot(dataset);
plot.setIgnoreNullValues(false);
plot.setIgnoreZeroValues(false);
LegendItemCollection items = plot.getLegendItems();
assertEquals(4, items.getItemCount());
// check that null items are ignored if requested
plot.setIgnoreNullValues(true);
items = plot.getLegendItems();
assertEquals(3, items.getItemCount());
// check that zero items are ignored if requested
plot.setIgnoreZeroValues(true);
items = plot.getLegendItems();
assertEquals(2, items.getItemCount());
// check that negative items are always ignored
dataset.setValue("Item 5", -1.0);
items = plot.getLegendItems();
assertEquals(2, items.getItemCount());
}
/**
* Check that the default base section paint is not null, and that you
* can never set it to null.
*/
public void testGetBaseSectionPaint() {
PiePlot plot = new PiePlot();
assertNotNull(plot.getBaseSectionPaint());
boolean pass = false;
try {
plot.setBaseSectionPaint(null);
}
catch (IllegalArgumentException e) {
pass = true;
}
assertTrue(pass);
}
static class NullLegendLabelGenerator implements PieSectionLabelGenerator {
public AttributedString generateAttributedSectionLabel(
PieDataset dataset, Comparable key) {
return null;
}
public String generateSectionLabel(PieDataset dataset, Comparable key) {
return null;
}
}
/**
* Draws a pie chart where the label generator returns null.
*/
public void testDrawWithNullLegendLabels() {
DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("L1", 12.0);
dataset.setValue("L2", 11.0);
JFreeChart chart = ChartFactory.createPieChart("Test", dataset, true,
false, false);
PiePlot plot = (PiePlot) chart.getPlot();
plot.setLegendLabelGenerator(new NullLegendLabelGenerator());
boolean success = false;
try {
BufferedImage image = new BufferedImage(200 , 100,
BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
g2.dispose();
success = true;
}
catch (Exception e) {
success = false;
}
assertTrue(success);
}
}
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