/* =========================================================== * 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); } }