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/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2013, 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.]
*
* -----------------------------
* ComparableObjectItemTest.java
* -----------------------------
* (C) Copyright 2006-2013, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 20-Oct-2006 : Version 1 (DG);
*
*/
package org.jfree.data;
import org.jfree.chart.TestUtilities;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.fail;
/**
* Tests for the {@link ComparableObjectItem} class.
*/
public class ComparableObjectItemTest {
/**
* Some checks for the constructor.
*/
@Test
public void testConstructor() {
// check null argument 1
try {
/* ComparableObjectItem item1 = */ new ComparableObjectItem(null,
"XYZ");
fail("There should be an exception.");
}
catch (IllegalArgumentException e) {
// expected
}
}
/**
* Confirm that the equals method can distinguish all the required fields.
*/
@Test
public void testEquals() {
ComparableObjectItem item1 = new ComparableObjectItem(new Integer(1),
"XYZ");
ComparableObjectItem item2 = new ComparableObjectItem(new Integer(1),
"XYZ");
assertEquals(item1, item2);
item1 = new ComparableObjectItem(new Integer(2), "XYZ");
assertNotEquals(item1, item2);
item2 = new ComparableObjectItem(new Integer(2), "XYZ");
assertEquals(item1, item2);
item1 = new ComparableObjectItem(new Integer(2), null);
assertNotEquals(item1, item2);
item2 = new ComparableObjectItem(new Integer(2), null);
assertEquals(item1, item2);
}
/**
* Some checks for the clone() method.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
ComparableObjectItem item1 = new ComparableObjectItem(new Integer(1),
"XYZ");
ComparableObjectItem item2 = (ComparableObjectItem) item1.clone();
assertNotSame(item1, item2);
assertSame(item1.getClass(), item2.getClass());
assertEquals(item1, item2);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() {
ComparableObjectItem item1 = new ComparableObjectItem(new Integer(1),
"XYZ");
ComparableObjectItem item2 = (ComparableObjectItem)
TestUtilities.serialised(item1);
assertEquals(item1, item2);
}
/**
* Some checks for the compareTo() method.
*/
@Test
public void testCompareTo() {
ComparableObjectItem item1 = new ComparableObjectItem(new Integer(1),
"XYZ");
ComparableObjectItem item2 = new ComparableObjectItem(new Integer(2),
"XYZ");
ComparableObjectItem item3 = new ComparableObjectItem(new Integer(3),
"XYZ");
ComparableObjectItem item4 = new ComparableObjectItem(new Integer(1),
"XYZ");
assertTrue(item2.compareTo(item1) > 0);
assertTrue(item3.compareTo(item1) > 0);
assertTrue(item4.compareTo(item1) == 0);
assertTrue(item1.compareTo(item2) < 0);
}
}
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