/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/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.]
*
* ---------------------
* ObjectUtilsTests.java
* ---------------------
* (C) Copyright 2004, 2005, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: ObjectUtilitiesTests.java,v 1.4 2007/11/02 17:50:37 taqua Exp $
*
* Changes
* -------
* 15-Sep-2004 : Version 1 (DG);
* 25-Nov-2004 : Added new checks (DG);
*
*/
package org.jfree.util.junit;
import java.awt.Point;
import java.util.ArrayList;
import java.util.Collection;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jfree.util.ObjectUtilities;
/**
* Some tests for the {@link ObjectUtilities} class.
*/
public class ObjectUtilitiesTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(ObjectUtilitiesTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public ObjectUtilitiesTests(String name) {
super(name);
}
/**
* Some checks for the clone(Object) method. The method should
* have these properties:
*
* (1) Return a clone for any object that can be cloned;
* (2) Throw a NullPointerException for any object that cannot be cloned;
* (3) Throw an IllegalArgumentException for null.
*
* @throws CloneNotSupportedException if there is a problem cloning.
*/
public void testCloneObject() throws CloneNotSupportedException {
Object obj;
Object clone;
// check String (not Cloneable)
boolean pass = false;
obj = "Hello World";
try {
clone = ObjectUtilities.clone(obj);
pass = false;
}
catch (CloneNotSupportedException e) {
pass = true;
}
assertTrue(pass);
// check Integer (not Cloneable)
pass = false;
obj = new Integer(123);
try {
clone = ObjectUtilities.clone(obj);
pass = false;
}
catch (CloneNotSupportedException e) {
pass = true;
}
assertTrue(pass);
// check Point (Cloneable)
obj = new Point(1, 2);
clone = ObjectUtilities.clone(obj);
assertEquals(obj, clone);
// check null (should throw an IllegalArgumentException)
obj = null;
try {
clone = ObjectUtilities.clone(obj);
pass = false;
}
catch (IllegalArgumentException e) {
pass = true;
}
assertTrue(pass);
}
/**
* Some checks for the deepClone(Collection) method.
*/
public void testDeepClone() {
Collection c1 = new ArrayList();
Collection c2 = null;
// empty list
try {
c2 = ObjectUtilities.deepClone(c1);
assertTrue(c2.isEmpty());
}
catch (CloneNotSupportedException e) {
assertTrue(false);
}
// list containing Cloneable objects
c1 = new ArrayList();
c1.add(new Point(1, 2));
c1.add(new Point(3, 4));
try {
c2 = ObjectUtilities.deepClone(c1);
assertEquals(2, c2.size());
assertTrue(c2.contains(new Point(1, 2)));
assertTrue(c2.contains(new Point(3, 4)));
}
catch (CloneNotSupportedException e) {
assertTrue(false);
}
// list containing Cloneable and null objects
c1 = new ArrayList();
c1.add(new Point(1, 2));
c1.add(null);
c1.add(new Point(3, 4));
try {
c2 = ObjectUtilities.deepClone(c1);
assertEquals(3, c2.size());
assertTrue(c2.contains(new Point(1, 2)));
assertTrue(c2.contains(new Point(3, 4)));
}
catch (CloneNotSupportedException e) {
assertTrue(false);
}
// list containing non-Cloneable objects
c1.clear();
c1.add("S1");
c1.add("S2");
try {
c2 = ObjectUtilities.deepClone(c1);
assertTrue(false); // if we get to here, the test has failed
}
catch (CloneNotSupportedException e) {
assertTrue(true);
}
// null list
try {
c2 = ObjectUtilities.deepClone(null);
assertTrue(false); // if we get to here, the test has failed
}
catch (IllegalArgumentException e) {
assertTrue(true);
}
catch (CloneNotSupportedException e) {
assertTrue(false);
}
}
}