/* ===========================================================
* 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.]
*
* ------------------------------
* XYDrawableAnnotationTests.java
* ------------------------------
* (C) Copyright 2003-2007, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 19-Aug-2003 : Version 1 (DG);
* 01-Oct-2004 : Fixed bugs in tests (DG);
* 07-Jan-2005 : Added hashCode() test (DG);
*
*/
package org.jfree.chart.annotations.junit;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
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.io.Serializable;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jfree.chart.annotations.XYDrawableAnnotation;
import org.jfree.ui.Drawable;
/**
* Tests for the {@link XYDrawableAnnotation} class.
*/
public class XYDrawableAnnotationTests extends TestCase {
static class TestDrawable implements Drawable, Cloneable, Serializable {
/**
* Default constructor.
*/
public TestDrawable() {
}
/**
* Draws something.
* @param g2 the graphics device.
* @param area the area in which to draw.
*/
public void draw(Graphics2D g2, Rectangle2D area) {
// do nothing
}
/**
* Tests this object for equality with an arbitrary object.
* @param obj the object to test against (<code>null</code> permitted).
* @return A boolean.
*/
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof TestDrawable)) {
return false;
}
return true;
}
/**
* Returns a clone.
*
* @return A clone.
*
* @throws CloneNotSupportedException if there is a problem cloning.
*/
public Object clone() throws CloneNotSupportedException {
return super.clone();
}
}
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(XYDrawableAnnotationTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public XYDrawableAnnotationTests(String name) {
super(name);
}
/**
* Confirm that the equals method can distinguish all the required fields.
*/
public void testEquals() {
XYDrawableAnnotation a1 = new XYDrawableAnnotation(
10.0, 20.0, 100.0, 200.0, new TestDrawable()
);
XYDrawableAnnotation a2 = new XYDrawableAnnotation(
10.0, 20.0, 100.0, 200.0, new TestDrawable()
);
assertTrue(a1.equals(a2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
public void testHashCode() {
XYDrawableAnnotation a1 = new XYDrawableAnnotation(
10.0, 20.0, 100.0, 200.0, new TestDrawable()
);
XYDrawableAnnotation a2 = new XYDrawableAnnotation(
10.0, 20.0, 100.0, 200.0, new TestDrawable()
);
assertTrue(a1.equals(a2));
int h1 = a1.hashCode();
int h2 = a2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
XYDrawableAnnotation a1 = new XYDrawableAnnotation(
10.0, 20.0, 100.0, 200.0, new TestDrawable()
);
XYDrawableAnnotation a2 = null;
try {
a2 = (XYDrawableAnnotation) a1.clone();
}
catch (CloneNotSupportedException e) {
System.err.println("Failed to clone.");
}
assertTrue(a1 != a2);
assertTrue(a1.getClass() == a2.getClass());
assertTrue(a1.equals(a2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
XYDrawableAnnotation a1 = new XYDrawableAnnotation(
10.0, 20.0, 100.0, 200.0, new TestDrawable()
);
XYDrawableAnnotation 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 = (XYDrawableAnnotation) in.readObject();
in.close();
}
catch (Exception e) {
System.out.println(e.toString());
}
assertEquals(a1, a2);
}
}