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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.]
- *
- * -------------------------------
- * SimpleHistogramDatasetTest.java
- * -------------------------------
- * (C) Copyright 2005-2013, by Object Refinery Limited and Contributors.
- *
- * Original Author: David Gilbert (for Object Refinery Limited);
- * Contributor(s): -;
- *
- * Changes
- * -------
- * 10-Jan-2005 : Version 1 (DG);
- * 21-May-2007 : Added testClearObservations (DG);
- *
- */
- package org.jfree.data.statistics;
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertTrue;
- import static org.junit.Assert.assertFalse;
- import org.jfree.chart.TestUtilities;
- import org.junit.Test;
- /**
- * Tests for the {@link SimpleHistogramDataset} class.
- */
- public class SimpleHistogramDatasetTest {
- /**
- * Ensure that the equals() method can distinguish all fields.
- */
- @Test
- public void testEquals() {
- SimpleHistogramDataset d1 = new SimpleHistogramDataset("Dataset 1");
- SimpleHistogramDataset d2 = new SimpleHistogramDataset("Dataset 1");
- assertTrue(d1.equals(d2));
- d1.addBin(new SimpleHistogramBin(1.0, 2.0));
- assertFalse(d1.equals(d2));
- d2.addBin(new SimpleHistogramBin(1.0, 2.0));
- assertTrue(d1.equals(d2));
- }
- /**
- * Some checks for the clone() method.
- */
- @Test
- public void testCloning() throws CloneNotSupportedException {
- SimpleHistogramDataset d1 = new SimpleHistogramDataset("Dataset 1");
- SimpleHistogramDataset d2 = (SimpleHistogramDataset) d1.clone();
- assertTrue(d1 != d2);
- assertTrue(d1.getClass() == d2.getClass());
- assertTrue(d1.equals(d2));
- // check that clone is independent of the original
- d2.addBin(new SimpleHistogramBin(2.0, 3.0));
- d2.addObservation(2.3);
- assertFalse(d1.equals(d2));
- }
- /**
- * Serialize an instance, restore it, and check for equality.
- */
- @Test
- public void testSerialization() {
- SimpleHistogramDataset d1 = new SimpleHistogramDataset("D1");
- SimpleHistogramDataset d2 = (SimpleHistogramDataset)
- TestUtilities.serialised(d1);
- assertEquals(d1, d2);
- }
- private static final double EPSILON = 0.0000000001;
- /**
- * Some checks for the clearObservations() method.
- */
- @Test
- public void testClearObservations() {
- SimpleHistogramDataset d1 = new SimpleHistogramDataset("D1");
- d1.clearObservations();
- assertEquals(0, d1.getItemCount(0));
- d1.addBin(new SimpleHistogramBin(0.0, 1.0));
- d1.addObservation(0.5);
- assertEquals(1.0, d1.getYValue(0, 0), EPSILON);
- }
- /**
- * Some checks for the removeAllBins() method.
- */
- @Test
- public void testRemoveAllBins() {
- SimpleHistogramDataset d1 = new SimpleHistogramDataset("D1");
- d1.addBin(new SimpleHistogramBin(0.0, 1.0));
- d1.addObservation(0.5);
- d1.addBin(new SimpleHistogramBin(2.0, 3.0));
- assertEquals(2, d1.getItemCount(0));
- d1.removeAllBins();
- assertEquals(0, d1.getItemCount(0));
- }
- }
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