# SlidingCategoryDatasetTests.java

    /* ===========================================================
     * 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.]
     *
     * --------------------------------
     * SlidingCategoryDatasetTests.java
     * --------------------------------
     * (C) Copyright 2008, by Object Refinery Limited and Contributors.
     *
     * Original Author:  David Gilbert (for Object Refinery Limited);
     * Contributor(s):   -;
     *
     * Changes
     * -------
     * 08-May-2008 : Version 1 (DG);
     *
     */

    package org.jfree.data.category.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.UnknownKeyException;
    import org.jfree.data.category.DefaultCategoryDataset;
    import org.jfree.data.category.SlidingCategoryDataset;

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

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

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

        /**
         * Some checks for the equals() method.
         */
        public void testEquals() {
        	DefaultCategoryDataset u1 = new DefaultCategoryDataset();
        	u1.addValue(1.0, "R1", "C1");
        	u1.addValue(2.0, "R1", "C2");
        	SlidingCategoryDataset d1 = new SlidingCategoryDataset(u1, 0, 5);
        	DefaultCategoryDataset u2 = new DefaultCategoryDataset();
        	u2.addValue(1.0, "R1", "C1");
        	u2.addValue(2.0, "R1", "C2");
        	SlidingCategoryDataset d2 = new SlidingCategoryDataset(u2, 0, 5);
        	assertTrue(d1.equals(d2));

        	d1.setFirstCategoryIndex(1);
        	assertFalse(d1.equals(d2));
        	d2.setFirstCategoryIndex(1);
        	assertTrue(d1.equals(d2));

        	d1.setMaximumCategoryCount(99);
        	assertFalse(d1.equals(d2));
        	d2.setMaximumCategoryCount(99);
        	assertTrue(d1.equals(d2));

        	u1.addValue(3.0, "R1", "C3");
        	assertFalse(d1.equals(d2));
        	u2.addValue(3.0, "R1", "C3");
        	assertTrue(d1.equals(d2));
        }

        /**
         * Confirm that cloning works.
         */
        public void testCloning() {
        	DefaultCategoryDataset u1 = new DefaultCategoryDataset();
        	u1.addValue(1.0, "R1", "C1");
        	u1.addValue(2.0, "R1", "C2");
        	SlidingCategoryDataset d1 = new SlidingCategoryDataset(u1, 0, 5);
        	SlidingCategoryDataset d2 = null;
            try {
                d2 = (SlidingCategoryDataset) d1.clone();
            }
            catch (CloneNotSupportedException e) {
                e.printStackTrace();
            }
            assertTrue(d1 != d2);
            assertTrue(d1.getClass() == d2.getClass());
            assertTrue(d1.equals(d2));

            // basic check for independence
            u1.addValue(3.0, "R1", "C3");
            assertFalse(d1.equals(d2));
            DefaultCategoryDataset u2
                    = (DefaultCategoryDataset) d2.getUnderlyingDataset();
            u2.addValue(3.0, "R1", "C3");
            assertTrue(d1.equals(d2));
        }

        /**
         * Serialize an instance, restore it, and check for equality.
         */
        public void testSerialization() {
        	DefaultCategoryDataset u1 = new DefaultCategoryDataset();
        	u1.addValue(1.0, "R1", "C1");
        	u1.addValue(2.0, "R1", "C2");
        	SlidingCategoryDataset d1 = new SlidingCategoryDataset(u1, 0, 5);
        	SlidingCategoryDataset 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 = (SlidingCategoryDataset) in.readObject();
                in.close();
            }
            catch (Exception e) {
                e.printStackTrace();
            }
            assertEquals(d1, d2);

            // basic check for independence
            u1.addValue(3.0, "R1", "C3");
            assertFalse(d1.equals(d2));
            DefaultCategoryDataset u2
                    = (DefaultCategoryDataset) d2.getUnderlyingDataset();
            u2.addValue(3.0, "R1", "C3");
            assertTrue(d1.equals(d2));
        }

        /**
         * Some checks for the getColumnCount() method.
         */
        public void testGetColumnCount() {
        	DefaultCategoryDataset underlying = new DefaultCategoryDataset();
        	SlidingCategoryDataset dataset = new SlidingCategoryDataset(underlying,
        			10, 2);
        	assertEquals(0, dataset.getColumnCount());
        	underlying.addValue(1.0, "R1", "C1");
        	assertEquals(0, dataset.getColumnCount());
        	underlying.addValue(1.0, "R1", "C2");
        	assertEquals(0, dataset.getColumnCount());
            dataset.setFirstCategoryIndex(0);
        	assertEquals(2, dataset.getColumnCount());
        	underlying.addValue(1.0, "R1", "C3");
        	assertEquals(2, dataset.getColumnCount());
            dataset.setFirstCategoryIndex(2);
            assertEquals(1, dataset.getColumnCount());
        	underlying.clear();
        	assertEquals(0, dataset.getColumnCount());
        }

        /**
         * Some checks for the getRowCount() method.
         */
        public void testGetRowCount() {
        	DefaultCategoryDataset underlying = new DefaultCategoryDataset();
        	SlidingCategoryDataset dataset = new SlidingCategoryDataset(underlying,
        			10, 5);
        	assertEquals(0, dataset.getRowCount());
        	underlying.addValue(1.0, "R1", "C1");
        	assertEquals(1, dataset.getRowCount());

        	underlying.clear();
        	assertEquals(0, dataset.getRowCount());
        }

        /**
         * Some checks for the getColumnIndex() method.
         */
        public void testGetColumnIndex() {
            DefaultCategoryDataset underlying = new DefaultCategoryDataset();
            underlying.addValue(1.0, "R1", "C1");
            underlying.addValue(2.0, "R1", "C2");
            underlying.addValue(3.0, "R1", "C3");
            underlying.addValue(4.0, "R1", "C4");
            SlidingCategoryDataset dataset = new SlidingCategoryDataset(underlying,
            		1, 2);
            assertEquals(-1, dataset.getColumnIndex("C1"));
            assertEquals(0, dataset.getColumnIndex("C2"));
            assertEquals(1, dataset.getColumnIndex("C3"));
            assertEquals(-1, dataset.getColumnIndex("C4"));
        }

        /**
         * Some checks for the getRowIndex() method.
         */
        public void testGetRowIndex() {
            DefaultCategoryDataset underlying = new DefaultCategoryDataset();
            underlying.addValue(1.0, "R1", "C1");
            underlying.addValue(2.0, "R2", "C1");
            underlying.addValue(3.0, "R3", "C1");
            underlying.addValue(4.0, "R4", "C1");
            SlidingCategoryDataset dataset = new SlidingCategoryDataset(underlying,
            		1, 2);
            assertEquals(0, dataset.getRowIndex("R1"));
            assertEquals(1, dataset.getRowIndex("R2"));
            assertEquals(2, dataset.getRowIndex("R3"));
            assertEquals(3, dataset.getRowIndex("R4"));
        }

        /**
         * Some checks for the getValue() method.
         */
        public void testGetValue() {
            DefaultCategoryDataset underlying = new DefaultCategoryDataset();
            underlying.addValue(1.0, "R1", "C1");
            underlying.addValue(2.0, "R1", "C2");
            underlying.addValue(3.0, "R1", "C3");
            underlying.addValue(4.0, "R1", "C4");
            SlidingCategoryDataset dataset = new SlidingCategoryDataset(underlying,
            		1, 2);
            assertEquals(new Double(2.0), dataset.getValue("R1", "C2"));
            assertEquals(new Double(3.0), dataset.getValue("R1", "C3"));
            boolean pass = false;
            try {
                dataset.getValue("R1", "C1");
            }
            catch (UnknownKeyException e) {
                pass = true;
            }
            assertTrue(pass);

            pass = false;
            try {
                dataset.getValue("R1", "C4");
            }
            catch (UnknownKeyException e) {
                pass = true;
            }
            assertTrue(pass);
        }

    }