/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2012, 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.]
 *
 * ------------------------------------
 * TimePeriodValuesCollectionTests.java
 * ------------------------------------
 * (C) Copyright 2005-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 11-Mar-2005 : Version 1 (DG);
 * 08-Mar-2007 : Added testGetSeries() (DG);
 * 11-Jun-2007 : Added tests for getDomainBounds() (DG);
 * 10-Jul-2007 : Fixed compile errors (DG);
 * 07-Apr-2008 : Added more checks to 
 *               testGetDomainBoundsWithInterval() (DG);
 *
 */

package org.jfree.data.time;

import org.jfree.data.Range;
import org.junit.Test;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.fail;

/**
 * Some tests for the {@link TimePeriodValuesCollection} class.
 */
public class TimePeriodValuesCollectionTest  {


    /**
     * A test for bug report 1161340.  I wasn't able to reproduce the problem
     * with this test.
     */
    @Test
    public void test1161340() {
        TimePeriodValuesCollection dataset = new TimePeriodValuesCollection();
        TimePeriodValues v1 = new TimePeriodValues("V1");
        v1.add(new Day(11, 3, 2005), 1.2);
        v1.add(new Day(12, 3, 2005), 3.4);
        dataset.addSeries(v1);
        assertEquals(1, dataset.getSeriesCount());
        dataset.removeSeries(v1);
        assertEquals(0, dataset.getSeriesCount());
        
        TimePeriodValues v2 = new TimePeriodValues("V2");
        v1.add(new Day(5, 3, 2005), 1.2);
        v1.add(new Day(6, 3, 2005), 3.4);
        dataset.addSeries(v2);
        assertEquals(1, dataset.getSeriesCount());
    }
    
    /**
     * Tests the equals() method.
     */
    @Test
    public void testEquals() {
        
        TimePeriodValuesCollection c1 = new TimePeriodValuesCollection();
        TimePeriodValuesCollection c2 = new TimePeriodValuesCollection();
        assertEquals(c1, c2);
        
        c1.setXPosition(TimePeriodAnchor.END);
        assertFalse(c1.equals(c2));
        c2.setXPosition(TimePeriodAnchor.END);
        assertEquals(c1, c2);
        
        TimePeriodValues v1 = new TimePeriodValues("Test");
        TimePeriodValues v2 = new TimePeriodValues("Test");
        
        c1.addSeries(v1);
        assertFalse(c1.equals(c2));
        c2.addSeries(v2);
        assertEquals(c1, c2);
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    @Test
    public void testSerialization() throws IOException, ClassNotFoundException {
        TimePeriodValuesCollection c1 = new TimePeriodValuesCollection();

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

        ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray()));
        TimePeriodValuesCollection c2 = (TimePeriodValuesCollection) in.readObject();
        in.close();

        assertEquals(c1, c2);
    }

    /**
     * Some basic checks for the getSeries() method.
     */
    @Test
    public void testGetSeries() {
        TimePeriodValuesCollection c1 = new TimePeriodValuesCollection();
        TimePeriodValues s1 = new TimePeriodValues("Series 1");
        c1.addSeries(s1);
        assertEquals("Series 1", c1.getSeries(0).getKey());
        
        try {
            c1.getSeries(-1);
            fail("IllegalArgumentException should have been thrown on negative series");
        }
        catch (IllegalArgumentException e) {
            assertEquals("Index 'series' out of range.", e.getMessage());
        }

        try {
            c1.getSeries(1);
            fail("IllegalArgumentException should have been thrown on index greater than series length");
        }
        catch (IllegalArgumentException e) {
            assertEquals("Index 'series' out of range.", e.getMessage());
        }
    }
    
    private static final double EPSILON = 0.0000000001;
    
    /**
     * Some checks for the getDomainBounds() method.
     */
    @Test
    public void testGetDomainBoundsWithoutInterval() {
        // check empty dataset
        TimePeriodValuesCollection dataset = new TimePeriodValuesCollection();
        Range r = dataset.getDomainBounds(false);
        assertNull(r);
        
        // check dataset with one time period
        TimePeriodValues s1 = new TimePeriodValues("S1");
        s1.add(new SimpleTimePeriod(1000L, 2000L), 1.0);
        dataset.addSeries(s1);
        r = dataset.getDomainBounds(false);
        assertEquals(1500.0, r.getLowerBound(), EPSILON);
        assertEquals(1500.0, r.getUpperBound(), EPSILON);
        
        // check dataset with two time periods
        s1.add(new SimpleTimePeriod(1500L, 3000L), 2.0);
        r = dataset.getDomainBounds(false);
        assertEquals(1500.0, r.getLowerBound(), EPSILON);
        assertEquals(2250.0, r.getUpperBound(), EPSILON);  
    }

    /**
     * Some more checks for the getDomainBounds() method.
     * 
     * @see #testGetDomainBoundsWithoutInterval()
     */
    @Test
    public void testGetDomainBoundsWithInterval() {
        // check empty dataset
        TimePeriodValuesCollection dataset = new TimePeriodValuesCollection();
        Range r = dataset.getDomainBounds(true);
        assertNull(r);
        
        // check dataset with one time period
        TimePeriodValues s1 = new TimePeriodValues("S1");
        s1.add(new SimpleTimePeriod(1000L, 2000L), 1.0);
        dataset.addSeries(s1);
        r = dataset.getDomainBounds(true);
        assertEquals(1000.0, r.getLowerBound(), EPSILON);
        assertEquals(2000.0, r.getUpperBound(), EPSILON);
        
        // check dataset with two time periods
        s1.add(new SimpleTimePeriod(1500L, 3000L), 2.0);
        r = dataset.getDomainBounds(true);
        assertEquals(1000.0, r.getLowerBound(), EPSILON);
        assertEquals(3000.0, r.getUpperBound(), EPSILON);
        
        // add a third time period
        s1.add(new SimpleTimePeriod(6000L, 7000L), 1.5);
        r = dataset.getDomainBounds(true);
        assertEquals(1000.0, r.getLowerBound(), EPSILON);
        assertEquals(7000.0, r.getUpperBound(), EPSILON);

        // add a fourth time period
        s1.add(new SimpleTimePeriod(4000L, 5000L), 1.4);
        r = dataset.getDomainBounds(true);
        assertEquals(1000.0, r.getLowerBound(), EPSILON);
        assertEquals(7000.0, r.getUpperBound(), EPSILON);    
    }
}
