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jfreechart example source code file (XYSeriesTests.java)

This example jfreechart source code file (XYSeriesTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

clonenotsupportedexception, epsilon, epsilon, integer, io, long, s, s1, s1, series, series, test, xyseries, xyseries, xyseriestests

The jfreechart XYSeriesTests.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2009, 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.]
 *
 * ------------------
 * XYSeriesTests.java
 * ------------------
 * (C) Copyright 2003-2009, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 23-Dec-2003 : Version 1 (DG);
 * 15-Jan-2007 : Added tests for new toArray() method (DG);
 * 30-Jan-2007 : Fixed some code that won't compile with Java 1.4 (DG);
 * 31-Oct-2007 : New hashCode() test (DG);
 * 01-May-2008 : Added testAddOrUpdate3() (DG);
 * 24-Nov-2008 : Added testBug1955483() (DG);
 * 06-Mar-2009 : Added tests for cached bounds values (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.data.general.SeriesException;
import org.jfree.data.xy.DefaultXYDataset;
import org.jfree.data.xy.XYDataItem;
import org.jfree.data.xy.XYSeries;

/**
 * Tests for the {@link XYSeries} class.
 */
public class XYSeriesTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */
    public static Test suite() {
        return new TestSuite(XYSeriesTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */
    public XYSeriesTests(String name) {
        super(name);
    }

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        XYSeries s1 = new XYSeries("Series");
        s1.add(1.0, 1.1);
        XYSeries s2 = new XYSeries("Series");
        s2.add(1.0, 1.1);
        assertTrue(s1.equals(s2));
        assertTrue(s2.equals(s1));

        s1.setKey("Series X");
        assertFalse(s1.equals(s2));
        s2.setKey("Series X");
        assertTrue(s1.equals(s2));

        s1.add(2.0, 2.2);
        assertFalse(s1.equals(s2));
        s2.add(2.0, 2.2);
        assertTrue(s1.equals(s2));
    }

    /**
     * Some simple checks for the hashCode() method.
     */
    public void testHashCode() {
        XYSeries s1 = new XYSeries("Test");
        XYSeries s2 = new XYSeries("Test");
        assertEquals(s1, s2);
        assertEquals(s1.hashCode(), s2.hashCode());

        s1.add(1.0, 500.0);
        s2.add(1.0, 500.0);
        assertEquals(s1, s2);
        assertEquals(s1.hashCode(), s2.hashCode());

        s1.add(2.0, null);
        s2.add(2.0, null);
        assertEquals(s1, s2);
        assertEquals(s1.hashCode(), s2.hashCode());

        s1.add(5.0, 111.0);
        s2.add(5.0, 111.0);
        assertEquals(s1, s2);
        assertEquals(s1.hashCode(), s2.hashCode());

        s1.add(9.0, 1.0);
        s2.add(9.0, 1.0);
        assertEquals(s1, s2);
        assertEquals(s1.hashCode(), s2.hashCode());
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        XYSeries s1 = new XYSeries("Series");
        s1.add(1.0, 1.1);
        XYSeries s2 = null;
        try {
            s2 = (XYSeries) s1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(s1 != s2);
        assertTrue(s1.getClass() == s2.getClass());
        assertTrue(s1.equals(s2));
    }

    /**
     * Another test of the clone() method.
     */
    public void testCloning2() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 100.0);
        s1.add(2.0, null);
        s1.add(3.0, 200.0);
        XYSeries s2 = null;
        try {
            s2 = (XYSeries) s1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(s1.equals(s2));

        // check independence
        s2.add(4.0, 300.0);
        assertFalse(s1.equals(s2));
        s1.add(4.0, 300.0);
        assertTrue(s1.equals(s2));
    }

    /**
     * Another test of the clone() method.
     */
    public void testCloning3() {
        XYSeries s1 = new XYSeries("S1");
        XYSeries s2 = null;
        try {
            s2 = (XYSeries) s1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(s1.equals(s2));

        // check independence
        s2.add(4.0, 300.0);
        assertFalse(s1.equals(s2));
        s1.add(4.0, 300.0);
        assertTrue(s1.equals(s2));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        XYSeries s1 = new XYSeries("Series");
        s1.add(1.0, 1.1);
        XYSeries s2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(s1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            s2 = (XYSeries) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(s1, s2);
    }

    /**
     * Simple test for the indexOf() method.
     */
    public void testIndexOf() {
        XYSeries s1 = new XYSeries("Series 1");
        s1.add(1.0, 1.0);
        s1.add(2.0, 2.0);
        s1.add(3.0, 3.0);
        assertEquals(0, s1.indexOf(new Double(1.0)));
        assertEquals(1, s1.indexOf(new Double(2.0)));
        assertEquals(2, s1.indexOf(new Double(3.0)));
        assertEquals(-4, s1.indexOf(new Double(99.9)));
    }

    /**
     * A check for the indexOf() method for an unsorted series.
     */
    public void testIndexOf2() {
        XYSeries s1 = new XYSeries("Series 1", false, true);
        s1.add(1.0, 1.0);
        s1.add(3.0, 3.0);
        s1.add(2.0, 2.0);
        assertEquals(0, s1.indexOf(new Double(1.0)));
        assertEquals(1, s1.indexOf(new Double(3.0)));
        assertEquals(2, s1.indexOf(new Double(2.0)));
    }

    /**
     * A check for the indexOf(Number) method when the series has duplicate
     * x-values.
     */
    public void testIndexOf3() {
        XYSeries s1 = new XYSeries("Series 1");
        s1.add(1.0, 1.0);
        s1.add(2.0, 2.0);
        s1.add(2.0, 3.0);
        assertEquals(0, s1.indexOf(new Double(1.0)));
        assertEquals(1, s1.indexOf(new Double(2.0)));
    }

    /**
     * Simple test for the remove() method.
     */
    public void testRemove() {
        XYSeries s1 = new XYSeries("Series 1");
        s1.add(1.0, 1.0);
        s1.add(2.0, 2.0);
        s1.add(3.0, 3.0);
        assertEquals(3, s1.getItemCount());

        s1.remove(new Double(2.0));
        assertEquals(new Double(3.0), s1.getX(1));

        s1.remove(0);
        assertEquals(new Double(3.0), s1.getX(0));
    }

    /**
     * Some checks for the remove(int) method.
     */
    public void testRemove2() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);
        s1.add(4.0, 4.4);
        s1.add(5.0, 5.5);
        s1.add(6.0, 6.6);
        assertEquals(6, s1.getItemCount());
        assertEquals(1.0, s1.getMinX(), EPSILON);
        assertEquals(6.0, s1.getMaxX(), EPSILON);
        assertEquals(1.1, s1.getMinY(), EPSILON);
        assertEquals(6.6, s1.getMaxY(), EPSILON);

        s1.remove(5);
        assertEquals(5, s1.getItemCount());
        assertEquals(1.0, s1.getMinX(), EPSILON);
        assertEquals(5.0, s1.getMaxX(), EPSILON);
        assertEquals(1.1, s1.getMinY(), EPSILON);
        assertEquals(5.5, s1.getMaxY(), EPSILON);
    }

    private static final double EPSILON = 0.0000000001;

    /**
     * When items are added with duplicate x-values, we expect them to remain
     * in the order they were added.
     */
    public void testAdditionOfDuplicateXValues() {
        XYSeries s1 = new XYSeries("Series 1");
        s1.add(1.0, 1.0);
        s1.add(2.0, 2.0);
        s1.add(2.0, 3.0);
        s1.add(2.0, 4.0);
        s1.add(3.0, 5.0);
        assertEquals(1.0, s1.getY(0).doubleValue(), EPSILON);
        assertEquals(2.0, s1.getY(1).doubleValue(), EPSILON);
        assertEquals(3.0, s1.getY(2).doubleValue(), EPSILON);
        assertEquals(4.0, s1.getY(3).doubleValue(), EPSILON);
        assertEquals(5.0, s1.getY(4).doubleValue(), EPSILON);
    }

    /**
     * Some checks for the update(Number, Number) method.
     */
    public void testUpdate() {
        XYSeries series = new XYSeries("S1");
        series.add(new Integer(1), new Integer(2));
        assertEquals(new Integer(2), series.getY(0));
        series.update(new Integer(1), new Integer(3));
        assertEquals(new Integer(3), series.getY(0));
        try {
            series.update(new Integer(2), new Integer(99));
            assertTrue(false);
        }
        catch (SeriesException e) {
            // got the required exception
        }
    }

    /**
     * Some checks for the update() method for an unsorted series.
     */
    public void testUpdate2() {
       XYSeries series = new XYSeries("Series", false, true);
       series.add(5.0, 55.0);
       series.add(4.0, 44.0);
       series.add(6.0, 66.0);
       series.update(new Double(4.0), new Double(99.0));
       assertEquals(new Double(99.0), series.getY(1));
    }

    /**
     * Some checks for the addOrUpdate() method.
     */
    public void testAddOrUpdate() {
        XYSeries series = new XYSeries("S1", true, false);
        XYDataItem old = series.addOrUpdate(new Long(1), new Long(2));
        assertTrue(old == null);
        assertEquals(1, series.getItemCount());
        assertEquals(new Long(2), series.getY(0));

        old = series.addOrUpdate(new Long(2), new Long(3));
        assertTrue(old == null);
        assertEquals(2, series.getItemCount());
        assertEquals(new Long(3), series.getY(1));

        old = series.addOrUpdate(new Long(1), new Long(99));
        assertEquals(new XYDataItem(new Long(1), new Long(2)), old);
        assertEquals(2, series.getItemCount());
        assertEquals(new Long(99), series.getY(0));
        assertEquals(new Long(3), series.getY(1));
    }

    /**
     * Some checks for the addOrUpdate() method for an UNSORTED series.
     */
    public void testAddOrUpdate2() {
        XYSeries series = new XYSeries("Series", false, false);
        series.add(5.0, 5.5);
        series.add(6.0, 6.6);
        series.add(3.0, 3.3);
        series.add(4.0, 4.4);
        series.add(2.0, 2.2);
        series.add(1.0, 1.1);
        series.addOrUpdate(new Double(3.0), new Double(33.3));
        series.addOrUpdate(new Double(2.0), new Double(22.2));
        assertEquals(33.3, series.getY(2).doubleValue(), EPSILON);
        assertEquals(22.2, series.getY(4).doubleValue(), EPSILON);
    }

    /**
     * Another test for the addOrUpdate() method.
     */
    public void testAddOrUpdate3() {
        XYSeries series = new XYSeries("Series", false, true);
        series.addOrUpdate(1.0, 1.0);
        series.addOrUpdate(1.0, 2.0);
        series.addOrUpdate(1.0, 3.0);
        assertEquals(new Double(1.0), series.getY(0));
        assertEquals(new Double(2.0), series.getY(1));
        assertEquals(new Double(3.0), series.getY(2));
        assertEquals(3, series.getItemCount());
    }

    /**
     * Some checks for the add() method for an UNSORTED series.
     */
    public void testAdd() {
        XYSeries series = new XYSeries("Series", false, true);
        series.add(5.0, 5.50);
        series.add(5.1, 5.51);
        series.add(6.0, 6.6);
        series.add(3.0, 3.3);
        series.add(4.0, 4.4);
        series.add(2.0, 2.2);
        series.add(1.0, 1.1);
        assertEquals(5.5, series.getY(0).doubleValue(), EPSILON);
        assertEquals(5.51, series.getY(1).doubleValue(), EPSILON);
        assertEquals(6.6, series.getY(2).doubleValue(), EPSILON);
        assertEquals(3.3, series.getY(3).doubleValue(), EPSILON);
        assertEquals(4.4, series.getY(4).doubleValue(), EPSILON);
        assertEquals(2.2, series.getY(5).doubleValue(), EPSILON);
        assertEquals(1.1, series.getY(6).doubleValue(), EPSILON);
    }

    /**
     * A simple check that the maximumItemCount attribute is working.
     */
    public void testSetMaximumItemCount() {
        XYSeries s1 = new XYSeries("S1");
        assertEquals(Integer.MAX_VALUE, s1.getMaximumItemCount());
        s1.setMaximumItemCount(2);
        assertEquals(2, s1.getMaximumItemCount());
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);
        assertEquals(2.0, s1.getX(0).doubleValue(), EPSILON);
        assertEquals(3.0, s1.getX(1).doubleValue(), EPSILON);
    }

    /**
     * Check that the maximum item count can be applied retrospectively.
     */
    public void testSetMaximumItemCount2() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);
        s1.setMaximumItemCount(2);
        assertEquals(2.0, s1.getX(0).doubleValue(), EPSILON);
        assertEquals(3.0, s1.getX(1).doubleValue(), EPSILON);
    }

    /**
     * Check that the item bounds are determined correctly when there is a
     * maximum item count.
     */
    public void testSetMaximumItemCount3() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);
        s1.add(4.0, 4.4);
        s1.add(5.0, 5.5);
        s1.add(6.0, 6.6);
        s1.setMaximumItemCount(2);
        assertEquals(5.0, s1.getX(0).doubleValue(), EPSILON);
        assertEquals(6.0, s1.getX(1).doubleValue(), EPSILON);
        assertEquals(5.0, s1.getMinX(), EPSILON);
        assertEquals(6.0, s1.getMaxX(), EPSILON);
        assertEquals(5.5, s1.getMinY(), EPSILON);
        assertEquals(6.6, s1.getMaxY(), EPSILON);
    }

    /**
     * Check that the item bounds are determined correctly when there is a
     * maximum item count.
     */
    public void testSetMaximumItemCount4() {
        XYSeries s1 = new XYSeries("S1");
        s1.setMaximumItemCount(2);
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);
        assertEquals(2.0, s1.getX(0).doubleValue(), EPSILON);
        assertEquals(3.0, s1.getX(1).doubleValue(), EPSILON);
        assertEquals(2.0, s1.getMinX(), EPSILON);
        assertEquals(3.0, s1.getMaxX(), EPSILON);
        assertEquals(2.2, s1.getMinY(), EPSILON);
        assertEquals(3.3, s1.getMaxY(), EPSILON);
    }

    /**
     * Some checks for the toArray() method.
     */
    public void testToArray() {
        XYSeries s = new XYSeries("S1");
        double[][] array = s.toArray();
        assertEquals(2, array.length);
        assertEquals(0, array[0].length);
        assertEquals(0, array[1].length);

        s.add(1.0, 2.0);
        array = s.toArray();
        assertEquals(1, array[0].length);
        assertEquals(1, array[1].length);
        assertEquals(2, array.length);
        assertEquals(1.0, array[0][0], EPSILON);
        assertEquals(2.0, array[1][0], EPSILON);

        s.add(2.0, null);
        array = s.toArray();
        assertEquals(2, array.length);
        assertEquals(2, array[0].length);
        assertEquals(2, array[1].length);
        assertEquals(2.0, array[0][1], EPSILON);
        assertTrue(Double.isNaN(array[1][1]));
    }

    /**
     * Some checks for an example using the toArray() method.
     */
    public void testToArrayExample() {
        XYSeries s = new XYSeries("S");
        s.add(1.0, 11.0);
        s.add(2.0, 22.0);
        s.add(3.5, 35.0);
        s.add(5.0, null);
        DefaultXYDataset dataset = new DefaultXYDataset();
        dataset.addSeries("S", s.toArray());
        assertEquals(1, dataset.getSeriesCount());
        assertEquals(4, dataset.getItemCount(0));
        assertEquals("S", dataset.getSeriesKey(0));
        assertEquals(1.0, dataset.getXValue(0, 0), EPSILON);
        assertEquals(2.0, dataset.getXValue(0, 1), EPSILON);
        assertEquals(3.5, dataset.getXValue(0, 2), EPSILON);
        assertEquals(5.0, dataset.getXValue(0, 3), EPSILON);
        assertEquals(11.0, dataset.getYValue(0, 0), EPSILON);
        assertEquals(22.0, dataset.getYValue(0, 1), EPSILON);
        assertEquals(35.0, dataset.getYValue(0, 2), EPSILON);
        assertTrue(Double.isNaN(dataset.getYValue(0, 3)));
    }

    /**
     * Another test for the addOrUpdate() method.
     */
    public void testBug1955483() {
        XYSeries series = new XYSeries("Series", true, true);
        series.addOrUpdate(1.0, 1.0);
        series.addOrUpdate(1.0, 2.0);
        assertEquals(new Double(1.0), series.getY(0));
        assertEquals(new Double(2.0), series.getY(1));
        assertEquals(2, series.getItemCount());
    }

    /**
     * Some checks for the delete(int, int) method.
     */
    public void testDelete() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);
        s1.add(4.0, 4.4);
        s1.add(5.0, 5.5);
        s1.add(6.0, 6.6);
        s1.delete(2, 5);
        assertEquals(2, s1.getItemCount());
        assertEquals(1.0, s1.getX(0).doubleValue(), EPSILON);
        assertEquals(2.0, s1.getX(1).doubleValue(), EPSILON);
        assertEquals(1.0, s1.getMinX(), EPSILON);
        assertEquals(2.0, s1.getMaxX(), EPSILON);
        assertEquals(1.1, s1.getMinY(), EPSILON);
        assertEquals(2.2, s1.getMaxY(), EPSILON);
    }

    /**
     * Some checks for the getMinX() method.
     */
    public void testGetMinX() {
        XYSeries s1 = new XYSeries("S1");
        assertTrue(Double.isNaN(s1.getMinX()));

        s1.add(1.0, 1.1);
        assertEquals(1.0, s1.getMinX(), EPSILON);

        s1.add(2.0, 2.2);
        assertEquals(1.0, s1.getMinX(), EPSILON);

        s1.add(Double.NaN, 99.9);
        assertEquals(1.0, s1.getMinX(), EPSILON);

        s1.add(-1.0, -1.1);
        assertEquals(-1.0, s1.getMinX(), EPSILON);

        s1.add(0.0, null);
        assertEquals(-1.0, s1.getMinX(), EPSILON);
    }

    /**
     * Some checks for the getMaxX() method.
     */
    public void testGetMaxX() {
        XYSeries s1 = new XYSeries("S1");
        assertTrue(Double.isNaN(s1.getMaxX()));

        s1.add(1.0, 1.1);
        assertEquals(1.0, s1.getMaxX(), EPSILON);

        s1.add(2.0, 2.2);
        assertEquals(2.0, s1.getMaxX(), EPSILON);

        s1.add(Double.NaN, 99.9);
        assertEquals(2.0, s1.getMaxX(), EPSILON);

        s1.add(-1.0, -1.1);
        assertEquals(2.0, s1.getMaxX(), EPSILON);

        s1.add(0.0, null);
        assertEquals(2.0, s1.getMaxX(), EPSILON);
    }

    /**
     * Some checks for the getMinY() method.
     */
    public void testGetMinY() {
        XYSeries s1 = new XYSeries("S1");
        assertTrue(Double.isNaN(s1.getMinY()));

        s1.add(1.0, 1.1);
        assertEquals(1.1, s1.getMinY(), EPSILON);

        s1.add(2.0, 2.2);
        assertEquals(1.1, s1.getMinY(), EPSILON);

        s1.add(Double.NaN, 99.9);
        assertEquals(1.1, s1.getMinY(), EPSILON);

        s1.add(-1.0, -1.1);
        assertEquals(-1.1, s1.getMinY(), EPSILON);

        s1.add(0.0, null);
        assertEquals(-1.1, s1.getMinY(), EPSILON);
   }

    /**
     * Some checks for the getMaxY() method.
     */
    public void testGetMaxY() {
        XYSeries s1 = new XYSeries("S1");
        assertTrue(Double.isNaN(s1.getMaxY()));

        s1.add(1.0, 1.1);
        assertEquals(1.1, s1.getMaxY(), EPSILON);

        s1.add(2.0, 2.2);
        assertEquals(2.2, s1.getMaxY(), EPSILON);

        s1.add(Double.NaN, 99.9);
        assertEquals(99.9, s1.getMaxY(), EPSILON);

        s1.add(-1.0, -1.1);
        assertEquals(99.9, s1.getMaxY(), EPSILON);

        s1.add(0.0, null);
        assertEquals(99.9, s1.getMaxY(), EPSILON);
    }

    /**
     * A test for the clear method.
     */
    public void testClear() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);

        assertEquals(3, s1.getItemCount());

        s1.clear();
        assertEquals(0, s1.getItemCount());
        assertTrue(Double.isNaN(s1.getMinX()));
        assertTrue(Double.isNaN(s1.getMaxX()));
        assertTrue(Double.isNaN(s1.getMinY()));
        assertTrue(Double.isNaN(s1.getMaxY()));
    }

    /**
     * Some checks for the updateByIndex() method.
     */
    public void testUpdateByIndex() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);

        assertEquals(1.1, s1.getMinY(), EPSILON);
        assertEquals(3.3, s1.getMaxY(), EPSILON);

        s1.updateByIndex(0, new Double(-5.0));
        assertEquals(-5.0, s1.getMinY(), EPSILON);
        assertEquals(3.3, s1.getMaxY(), EPSILON);

        s1.updateByIndex(0, null);
        assertEquals(2.2, s1.getMinY(), EPSILON);
        assertEquals(3.3, s1.getMaxY(), EPSILON);

        s1.updateByIndex(2, null);
        assertEquals(2.2, s1.getMinY(), EPSILON);
        assertEquals(2.2, s1.getMaxY(), EPSILON);

        s1.updateByIndex(1, null);
        assertTrue(Double.isNaN(s1.getMinY()));
        assertTrue(Double.isNaN(s1.getMaxY()));
    }

    /**
     * Some checks for the updateByIndex() method.
     */
    public void testUpdateByIndex2() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, Double.NaN);

        assertTrue(Double.isNaN(s1.getMinY()));
        assertTrue(Double.isNaN(s1.getMaxY()));

        s1.updateByIndex(0, new Double(1.0));
        assertEquals(1.0, s1.getMinY(), EPSILON);
        assertEquals(1.0, s1.getMaxY(), EPSILON);

        s1.updateByIndex(0, new Double(2.0));
        assertEquals(2.0, s1.getMinY(), EPSILON);
        assertEquals(2.0, s1.getMaxY(), EPSILON);

        s1.add(-1.0, -1.0);
        s1.updateByIndex(0, new Double(0.0));
        assertEquals(0.0, s1.getMinY(), EPSILON);
        assertEquals(2.0, s1.getMaxY(), EPSILON);
    }

    /**
     * Some checks for the updateByIndex() method.
     */
    public void testUpdateByIndex3() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 1.1);
        s1.add(2.0, 2.2);
        s1.add(3.0, 3.3);

        s1.updateByIndex(1, new Double(2.05));
        assertEquals(1.1, s1.getMinY(), EPSILON);
        assertEquals(3.3, s1.getMaxY(), EPSILON);
    }

    /**
     * Some checks for the update(Number, Number) method.
     */
    public void testUpdateXY() {
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, Double.NaN);

        assertTrue(Double.isNaN(s1.getMinY()));
        assertTrue(Double.isNaN(s1.getMaxY()));

        s1.update(new Double(1.0), new Double(1.0));
        assertEquals(1.0, s1.getMinY(), EPSILON);
        assertEquals(1.0, s1.getMaxY(), EPSILON);

        s1.update(new Double(1.0), new Double(2.0));
        assertEquals(2.0, s1.getMinY(), EPSILON);
        assertEquals(2.0, s1.getMaxY(), EPSILON);
    }

}

Other jfreechart examples (source code examples)

Here is a short list of links related to this jfreechart XYSeriesTests.java source code file:



my book on functional programming

 

new blog posts

 

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