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jfreechart example source code file (OHLCSeriesCollectionTests.java)

This example jfreechart source code file (OHLCSeriesCollectionTests.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

bytearrayoutputstream, clonenotsupportedexception, empty, io, objectinput, ohlcseries, ohlcseries, ohlcseriescollection, ohlcseriescollection, ohlcseriescollectiontests, series, series, testcase, year, year

The jfreechart OHLCSeriesCollectionTests.java source code

/* ===========================================================
 * 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.]
 *
 * ------------------------------
 * OHLCSeriesCollectionTests.java
 * ------------------------------
 * (C) Copyright 2006-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 04-Dec-2006 : Version 1 (DG);
 * 10-Jul-2008 : Updated testEquals() method (DG);
 *
 */

package org.jfree.data.time.ohlc.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.time.TimePeriodAnchor;
import org.jfree.data.time.Year;
import org.jfree.data.time.ohlc.OHLCSeries;
import org.jfree.data.time.ohlc.OHLCSeriesCollection;

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

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

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

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        OHLCSeriesCollection c1 = new OHLCSeriesCollection();
        OHLCSeriesCollection c2 = new OHLCSeriesCollection();
        assertEquals(c1, c2);

        // add a series
        OHLCSeries s1 = new OHLCSeries("Series");
        s1.add(new Year(2006), 1.0, 1.1, 1.2, 1.3);
        c1.addSeries(s1);
        assertFalse(c1.equals(c2));
        OHLCSeries s2 = new OHLCSeries("Series");
        s2.add(new Year(2006), 1.0, 1.1, 1.2, 1.3);
        c2.addSeries(s2);
        assertTrue(c1.equals(c2));

        // add an empty series
        c1.addSeries(new OHLCSeries("Empty Series"));
        assertFalse(c1.equals(c2));
        c2.addSeries(new OHLCSeries("Empty Series"));
        assertTrue(c1.equals(c2));

        c1.setXPosition(TimePeriodAnchor.END);
        assertFalse(c1.equals(c2));
        c2.setXPosition(TimePeriodAnchor.END);
        assertTrue(c1.equals(c2));

    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        OHLCSeriesCollection c1 = new OHLCSeriesCollection();
        OHLCSeries s1 = new OHLCSeries("Series");
        s1.add(new Year(2006), 1.0, 1.1, 1.2, 1.3);
        c1.addSeries(s1);
        OHLCSeriesCollection c2 = null;
        try {
            c2 = (OHLCSeriesCollection) c1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(c1 != c2);
        assertTrue(c1.getClass() == c2.getClass());
        assertTrue(c1.equals(c2));

        // check independence
        s1.setDescription("XYZ");
        assertFalse(c1.equals(c2));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        OHLCSeriesCollection c1 = new OHLCSeriesCollection();
        OHLCSeries s1 = new OHLCSeries("Series");
        s1.add(new Year(2006), 1.0, 1.1, 1.2, 1.3);
        c1.addSeries(s1);
        OHLCSeriesCollection c2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(c1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            c2 = (OHLCSeriesCollection) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(c1, c2);
    }

    /**
     * A test for bug report 1170825 (originally affected XYSeriesCollection,
     * this test is just copied over).
     */
    public void test1170825() {
        OHLCSeries s1 = new OHLCSeries("Series1");
        OHLCSeriesCollection dataset = new OHLCSeriesCollection();
        dataset.addSeries(s1);
        try {
            /* XYSeries s = */ dataset.getSeries(1);
        }
        catch (IllegalArgumentException e) {
            // correct outcome
        }
        catch (IndexOutOfBoundsException e) {
            assertTrue(false);  // wrong outcome
        }
    }

}

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