/* ===========================================================
* 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.]
*
* ---------------------------
* XYTitleAnnotationTests.java
* ---------------------------
* (C) Copyright 2007, 2008, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 30-Apr-2007 : Version 1 (DG);
* 26-Feb-2008 : Added testDrawWithNullInfo() (DG);
*
*/
package org.jfree.chart.annotations.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.annotations.XYTitleAnnotation;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.xy.DefaultTableXYDataset;
import org.jfree.data.xy.XYSeries;
/**
* Tests for the {@link XYTitleAnnotation} class.
*/
public class XYTitleAnnotationTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(XYTitleAnnotationTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public XYTitleAnnotationTests(String name) {
super(name);
}
/**
* Confirm that the equals method can distinguish all the required fields.
*/
public void testEquals() {
TextTitle t = new TextTitle("Title");
XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
XYTitleAnnotation a2 = new XYTitleAnnotation(1.0, 2.0, t);
assertTrue(a1.equals(a2));
a1 = new XYTitleAnnotation(1.1, 2.0, t);
assertFalse(a1.equals(a2));
a2 = new XYTitleAnnotation(1.1, 2.0, t);
assertTrue(a1.equals(a2));
a1 = new XYTitleAnnotation(1.1, 2.2, t);
assertFalse(a1.equals(a2));
a2 = new XYTitleAnnotation(1.1, 2.2, t);
assertTrue(a1.equals(a2));
TextTitle t2 = new TextTitle("Title 2");
a1 = new XYTitleAnnotation(1.1, 2.2, t2);
assertFalse(a1.equals(a2));
a2 = new XYTitleAnnotation(1.1, 2.2, t2);
assertTrue(a1.equals(a2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
public void testHashCode() {
TextTitle t = new TextTitle("Title");
XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
XYTitleAnnotation a2 = new XYTitleAnnotation(1.0, 2.0, t);
assertTrue(a1.equals(a2));
int h1 = a1.hashCode();
int h2 = a2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
TextTitle t = new TextTitle("Title");
XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
XYTitleAnnotation a2 = null;
try {
a2 = (XYTitleAnnotation) a1.clone();
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
assertTrue(a1 != a2);
assertTrue(a1.getClass() == a2.getClass());
assertTrue(a1.equals(a2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
TextTitle t = new TextTitle("Title");
XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
XYTitleAnnotation a2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(a1);
out.close();
ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
buffer.toByteArray()));
a2 = (XYTitleAnnotation) in.readObject();
in.close();
}
catch (Exception e) {
e.printStackTrace();
}
assertEquals(a1, a2);
}
/**
* Draws the chart with a <code>null</code> info object to make sure that
* no exceptions are thrown.
*/
public void testDrawWithNullInfo() {
boolean success = false;
try {
DefaultTableXYDataset dataset = new DefaultTableXYDataset();
XYSeries s1 = new XYSeries("Series 1", true, false);
s1.add(5.0, 5.0);
s1.add(10.0, 15.5);
s1.add(15.0, 9.5);
s1.add(20.0, 7.5);
dataset.addSeries(s1);
XYSeries s2 = new XYSeries("Series 2", true, false);
s2.add(5.0, 5.0);
s2.add(10.0, 15.5);
s2.add(15.0, 9.5);
s2.add(20.0, 3.5);
dataset.addSeries(s2);
XYPlot plot = new XYPlot(dataset,
new NumberAxis("X"), new NumberAxis("Y"),
new XYLineAndShapeRenderer());
plot.addAnnotation(new XYTitleAnnotation(5.0, 6.0,
new TextTitle("Hello World!")));
JFreeChart chart = new JFreeChart(plot);
/* BufferedImage image = */ chart.createBufferedImage(300, 200,
null);
success = true;
}
catch (NullPointerException e) {
e.printStackTrace();
success = false;
}
assertTrue(success);
}
}