gt:         assertEquals(7.25, d1.getEndXValue(0, 1), EPSILON);
context: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2008, 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.
   *
   * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
   * in the United States and other countries.]
   *
   * -------------------------------
   * DefaultTableXYDatasetTests.java
   * -------------------------------
   * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 23-Dec-2003 : Version 1 (DG);
   * 06-Oct-2005 : Added test for new data updating interval width (DG);
   * 08-Mar-2007 : Added testGetSeries() (DG);
   * 22-Apr-2008 : Added testPublicCloneable (DG);
   *
   */
  
  package org.jfree.data.xy.junit;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  import org.jfree.chart.util.PublicCloneable;
  import org.jfree.data.xy.DefaultTableXYDataset;
  import org.jfree.data.xy.XYSeries;
  
  /**
   * Tests for the {@link DefaultTableXYDataset} class.
   */
  public class DefaultTableXYDatasetTests extends TestCase {
  
      /**
       * Returns the tests as a test suite.
       *
       * @return The test suite.
       */
      public static Test suite() {
          return new TestSuite(DefaultTableXYDatasetTests.class);
      }
  
      /**
       * Constructs a new set of tests.
       *
       * @param name  the name of the tests.
       */
      public DefaultTableXYDatasetTests(String name) {
          super(name);
      }
  
      /**
       * Confirm that the equals method can distinguish all the required fields.
       */
      public void testEquals() {
  
          DefaultTableXYDataset d1 = new DefaultTableXYDataset();
          XYSeries s1 = new XYSeries("Series 1", true, false);
          s1.add(1.0, 1.1);
          s1.add(2.0, 2.2);
          d1.addSeries(s1);
  
          DefaultTableXYDataset d2 = new DefaultTableXYDataset();
          XYSeries s2 = new XYSeries("Series 1", true, false);
          s2.add(1.0, 1.1);
          s2.add(2.0, 2.2);
          d2.addSeries(s2);
  
          assertTrue(d1.equals(d2));
          assertTrue(d2.equals(d1));
  
          s1.add(3.0, 3.3);
          assertFalse(d1.equals(d2));
  
          s2.add(3.0, 3.3);
          assertTrue(d1.equals(d2));
  
      }
  
      /**
       * Confirm that cloning works.
       */
      public void testCloning() {
          DefaultTableXYDataset d1 = new DefaultTableXYDataset();
          XYSeries s1 = new XYSeries("Series 1", true, false);
          s1.add(1.0, 1.1);
          s1.add(2.0, 2.2);
          d1.addSeries(s1);
  
          DefaultTableXYDataset d2 = null;
          try {
              d2 = (DefaultTableXYDataset) d1.clone();
          }
          catch (CloneNotSupportedException e) {
              e.printStackTrace();
          }
          assertTrue(d1 != d2);
          assertTrue(d1.getClass() == d2.getClass());
          assertTrue(d1.equals(d2));
  
          s1.add(3.0, 3.3);
          assertFalse(d1.equals(d2));
      }
  
      /**
       * Verify that this class implements {@link PublicCloneable}.
       */
      public void testPublicCloneable() {
          DefaultTableXYDataset d1 = new DefaultTableXYDataset();
          assertTrue(d1 instanceof PublicCloneable);
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      public void testSerialization() {
  
          DefaultTableXYDataset d1 = new DefaultTableXYDataset();
          XYSeries s1 = new XYSeries("Series 1", true, false);
          s1.add(1.0, 1.1);
          s1.add(2.0, 2.2);
          d1.addSeries(s1);
  
          DefaultTableXYDataset d2 = null;
  
          try {
              ByteArrayOutputStream buffer = new ByteArrayOutputStream();
              ObjectOutput out = new ObjectOutputStream(buffer);
              out.writeObject(d1);
              out.close();
  
              ObjectInput in = new ObjectInputStream(
                      new ByteArrayInputStream(buffer.toByteArray()));
              d2 = (DefaultTableXYDataset) in.readObject();
              in.close();
          }
          catch (Exception e) {
              e.printStackTrace();
          }
          assertEquals(d1, d2);
  
      }
  
      private static final double EPSILON = 0.0000000001;
  
      /**
       * This is a test for bug 1312066 - adding a new series should trigger a
       * recalculation of the interval width, if it is being automatically
       * calculated.
       */
      public void testAddSeries() {
          DefaultTableXYDataset d1 = new DefaultTableXYDataset();
          d1.setAutoWidth(true);
          XYSeries s1 = new XYSeries("Series 1", true, false);
          s1.add(3.0, 1.1);
          s1.add(7.0, 2.2);
          d1.addSeries(s1);
          assertEquals(3.0, d1.getXValue(0, 0), EPSILON);
          assertEquals(7.0, d1.getXValue(0, 1), EPSILON);
          assertEquals(1.0, d1.getStartXValue(0, 0), EPSILON);
          assertEquals(5.0, d1.getStartXValue(0, 1), EPSILON);
          assertEquals(5.0, d1.getEndXValue(0, 0), EPSILON);
          assertEquals(9.0, d1.getEndXValue(0, 1), EPSILON);
  
          // now add another series
          XYSeries s2 = new XYSeries("Series 2", true, false);
          s2.add(7.5, 1.1);
          s2.add(9.0, 2.2);
          d1.addSeries(s2);
  
          assertEquals(3.0, d1.getXValue(1, 0), EPSILON);
          assertEquals(7.0, d1.getXValue(1, 1), EPSILON);
          assertEquals(7.5, d1.getXValue(1, 2), EPSILON);
          assertEquals(9.0, d1.getXValue(1, 3), EPSILON);
  
          assertEquals(7.25, d1.getStartXValue(1, 2), EPSILON);
          assertEquals(8.75, d1.getStartXValue(1, 3), EPSILON);
          assertEquals(7.75, d1.getEndXValue(1, 2), EPSILON);
          assertEquals(9.25, d1.getEndXValue(1, 3), EPSILON);
  
          // and check the first series too...
          assertEquals(2.75, d1.getStartXValue(0, 0), EPSILON);
          assertEquals(6.75, d1.getStartXValue(0, 1), EPSILON);
          assertEquals(3.25, d1.getEndXValue(0, 0), EPSILON);
  