/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, 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., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ---------------------
* BarRendererTests.java
* ---------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: BarRendererTests.java,v 1.1 2004/08/31 14:48:28 mungady Exp $
*
* Changes
* -------
* 25-Mar-2003 : Version 1 (DG);
* 19-Aug-2003 : Renamed HorizontalBarRendererTests --> BarRendererTests (DG);
* 22-Oct-2003 : Added hashCode test (DG);
*
*/
package org.jfree.chart.renderer.category.junit;
import java.awt.Color;
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.labels.ItemLabelAnchor;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.labels.StandardCategoryLabelGenerator;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.junit.RendererChangeDetector;
import org.jfree.ui.GradientPaintTransformType;
import org.jfree.ui.StandardGradientPaintTransformer;
import org.jfree.ui.TextAnchor;
/**
* Tests for the {@link BarRenderer} class.
*
*/
public class BarRendererTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return the test suite.
*/
public static Test suite() {
return new TestSuite(BarRendererTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public BarRendererTests(String name) {
super(name);
}
/**
* Test that the equals() method distinguishes all fields.
*/
public void testEquals() {
BarRenderer r1 = new BarRenderer();
BarRenderer r2 = new BarRenderer();
assertTrue(r1.equals(r2));
assertTrue(r2.equals(r1));
// itemMargin
r1.setItemMargin(0.22);
assertFalse(r1.equals(r2));
r2.setItemMargin(0.22);
assertTrue(r1.equals(r2));
// drawBarOutline
r1.setDrawBarOutline(!r1.isDrawBarOutline());
assertFalse(r1.equals(r2));
r2.setDrawBarOutline(!r2.isDrawBarOutline());
assertTrue(r1.equals(r2));
// maxBarWidth
r1.setMaxBarWidth(0.11);
assertFalse(r1.equals(r2));
r2.setMaxBarWidth(0.11);
assertTrue(r1.equals(r2));
// minimumBarLength
r1.setMinimumBarLength(0.04);
assertFalse(r1.equals(r2));
r2.setMinimumBarLength(0.04);
assertTrue(r1.equals(r2));
// gradientPaintTransformer
r1.setGradientPaintTransformer(
new StandardGradientPaintTransformer(GradientPaintTransformType.CENTER_VERTICAL)
);
assertFalse(r1.equals(r2));
r2.setGradientPaintTransformer(
new StandardGradientPaintTransformer(GradientPaintTransformType.CENTER_VERTICAL)
);
assertTrue(r1.equals(r2));
// positiveItemLabelPositionFallback
r1.setPositiveItemLabelPositionFallback(
new ItemLabelPosition(ItemLabelAnchor.INSIDE1, TextAnchor.CENTER)
);
assertFalse(r1.equals(r2));
r2.setPositiveItemLabelPositionFallback(
new ItemLabelPosition(ItemLabelAnchor.INSIDE1, TextAnchor.CENTER)
);
assertTrue(r1.equals(r2));
// negativeItemLabelPositionFallback
r1.setNegativeItemLabelPositionFallback(
new ItemLabelPosition(ItemLabelAnchor.INSIDE1, TextAnchor.CENTER)
);
assertFalse(r1.equals(r2));
r2.setNegativeItemLabelPositionFallback(
new ItemLabelPosition(ItemLabelAnchor.INSIDE1, TextAnchor.CENTER)
);
assertTrue(r1.equals(r2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
public void testHashcode() {
BarRenderer r1 = new BarRenderer();
BarRenderer r2 = new BarRenderer();
assertTrue(r1.equals(r2));
int h1 = r1.hashCode();
int h2 = r2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
BarRenderer r1 = new BarRenderer();
r1.setLabelGenerator(new StandardCategoryLabelGenerator());
BarRenderer r2 = null;
try {
r2 = (BarRenderer) r1.clone();
}
catch (CloneNotSupportedException e) {
System.err.println("BarRendererTests.testCloning: failed to clone.");
}
assertTrue(r1 != r2);
assertTrue(r1.getClass() == r2.getClass());
assertTrue(r1.equals(r2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
BarRenderer r1 = new BarRenderer();
BarRenderer 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 = (BarRenderer) in.readObject();
in.close();
}
catch (Exception e) {
System.out.println(e.toString());
}
assertEquals(r1, r2);
}
/**
* Tests each setter method to ensure that it sends an event notification.
*/
public void testEventNotification() {
RendererChangeDetector detector = new RendererChangeDetector();
BarRenderer r1 = new BarRenderer();
r1.addChangeListener(detector);
detector.setNotified(false);
r1.setPaint(Color.red);
assertTrue(detector.getNotified());
}
}