/* ===========================================================
* 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.]
*
* ---------------------
* KeyedObjectTests.java
* ---------------------
* (C) Copyright 2004-2008, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 27-Jan-2004 : Version 1 (DG);
* 28-Sep-2007 : Added testCloning2() (DG);
*
*/
package org.jfree.data;
import org.jfree.data.general.DefaultPieDataset;
import org.junit.Test;
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 java.util.ArrayList;
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 KeyedObject} class.
*/
public class KeyedObjectTest {
/**
* Confirm that the equals method can distinguish all the required fields.
*/
@Test
public void testEquals() {
KeyedObject ko1 = new KeyedObject("Test", "Object");
KeyedObject ko2 = new KeyedObject("Test", "Object");
assertEquals(ko1, ko2);
assertEquals(ko2, ko1);
ko1 = new KeyedObject("Test 1", "Object");
ko2 = new KeyedObject("Test 2", "Object");
assertFalse(ko1.equals(ko2));
ko1 = new KeyedObject("Test", "Object 1");
ko2 = new KeyedObject("Test", "Object 2");
assertFalse(ko1.equals(ko2));
}
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
KeyedObject ko1 = new KeyedObject("Test", "Object");
KeyedObject ko2 = (KeyedObject) ko1.clone();
assertNotSame(ko1, ko2);
assertSame(ko1.getClass(), ko2.getClass());
assertEquals(ko1, ko2);
}
/**
* Confirm special features of cloning.
*/
@Test
public void testCloning2() throws CloneNotSupportedException {
// case 1 - object is mutable but not PublicCloneable
Object obj1 = new ArrayList();
KeyedObject ko1 = new KeyedObject("Test", obj1);
KeyedObject ko2 = (KeyedObject) ko1.clone();
assertNotSame(ko1, ko2);
assertSame(ko1.getClass(), ko2.getClass());
assertEquals(ko1, ko2);
// the clone contains a reference to the original object
assertSame(ko2.getObject(), obj1);
// CASE 2 - object is mutable AND PublicCloneable
obj1 = new DefaultPieDataset();
ko1 = new KeyedObject("Test", obj1);
ko2 = (KeyedObject) ko1.clone();
assertNotSame(ko1, ko2);
assertSame(ko1.getClass(), ko2.getClass());
assertEquals(ko1, ko2);
// the clone contains a reference to a CLONE of the original object
assertNotSame(ko2.getObject(), obj1);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
KeyedObject ko1 = new KeyedObject("Test", "Object");
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(ko1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray())
);
KeyedObject ko2 = (KeyedObject) in.readObject();
in.close();
assertEquals(ko1, ko2);
}
}