Java tutorial
/* =========================================================== * 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.] * * -------------------------- * XIntervalDataItemTest.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.xy; import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertEquals; import org.jfree.chart.TestUtilities; import org.junit.Test; /** * Tests for the {@link XIntervalDataItem} class. */ public class XIntervalDataItemTest { private static final double EPSILON = 0.00000000001; /** * Some checks for the constructor. */ @Test public void testConstructor1() { XIntervalDataItem item1 = new XIntervalDataItem(1.0, 2.0, 3.0, 4.0); assertEquals(new Double(1.0), item1.getX()); assertEquals(2.0, item1.getXLowValue(), EPSILON); assertEquals(3.0, item1.getXHighValue(), EPSILON); assertEquals(4.0, item1.getYValue(), EPSILON); } /** * Confirm that the equals method can distinguish all the required fields. */ @Test public void testEquals() { XIntervalDataItem item1 = new XIntervalDataItem(1.0, 2.0, 3.0, 4.0); XIntervalDataItem item2 = new XIntervalDataItem(1.0, 2.0, 3.0, 4.0); assertTrue(item1.equals(item2)); assertTrue(item2.equals(item1)); // x item1 = new XIntervalDataItem(1.1, 2.0, 3.0, 4.0); assertFalse(item1.equals(item2)); item2 = new XIntervalDataItem(1.1, 2.0, 3.0, 4.0); assertTrue(item1.equals(item2)); // xLow item1 = new XIntervalDataItem(1.1, 2.2, 3.0, 4.0); assertFalse(item1.equals(item2)); item2 = new XIntervalDataItem(1.1, 2.2, 3.0, 4.0); assertTrue(item1.equals(item2)); // xHigh item1 = new XIntervalDataItem(1.1, 2.2, 3.3, 4.0); assertFalse(item1.equals(item2)); item2 = new XIntervalDataItem(1.1, 2.2, 3.3, 4.0); assertTrue(item1.equals(item2)); // y item1 = new XIntervalDataItem(1.1, 2.2, 3.3, 4.4); assertFalse(item1.equals(item2)); item2 = new XIntervalDataItem(1.1, 2.2, 3.3, 4.4); assertTrue(item1.equals(item2)); } /** * Some checks for the clone() method. */ @Test public void testCloning() throws CloneNotSupportedException { XIntervalDataItem item1 = new XIntervalDataItem(1.0, 2.0, 3.0, 4.0); XIntervalDataItem item2 = (XIntervalDataItem) item1.clone(); assertTrue(item1 != item2); assertTrue(item1.getClass() == item2.getClass()); assertTrue(item1.equals(item2)); } /** * Serialize an instance, restore it, and check for equality. */ @Test public void testSerialization() { XIntervalDataItem item1 = new XIntervalDataItem(1.0, 2.0, 3.0, 4.0); XIntervalDataItem item2 = (XIntervalDataItem) TestUtilities.serialised(item1); assertEquals(item1, item2); } }