/* ===========================================================

 * JFreeChart : a free chart library for the Java(tm) platform

 * ===========================================================

 *

 * (C) Copyright 2000-2004, 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., 59 Temple Place, Suite 330,

 * Boston, MA 02111-1307, USA.

 *

 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 

 * in the United States and other countries.]

 *

 * ------------------

 * DateAxisTests.java

 * ------------------

 * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.

 *

 * Original Author:  David Gilbert (for Object Refinery Limited);

 * Contributor(s):   -;

 *

 * $Id: DateAxisTests.java,v 1.1 2004/08/31 14:31:24 mungady Exp $

 *

 * Changes

 * -------

 * 22-Apr-2003 : Version 1 (DG);

 *

 */



package org.jfree.chart.axis.junit;



import java.awt.geom.Rectangle2D;

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 java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;



import junit.framework.Test;

import junit.framework.TestCase;

import junit.framework.TestSuite;



import org.jfree.chart.axis.DateAxis;

import org.jfree.chart.axis.DateTickMarkPosition;

import org.jfree.chart.axis.DateTickUnit;

import org.jfree.chart.axis.SegmentedTimeline;

import org.jfree.data.time.DateRange;

import org.jfree.ui.RectangleEdge;



/**

 * Tests for the {@link DateAxis} class.

 */

public class DateAxisTests extends TestCase {



    /**

     * Returns the tests as a test suite.

     *

     * @return The test suite.

     */

    public static Test suite() {

        return new TestSuite(DateAxisTests.class);

    }



    /**

     * Constructs a new set of tests.

     *

     * @param name  the name of the tests.

     */

    public DateAxisTests(String name) {

        super(name);

    }



    /**

     * Confirm that the equals method can distinguish all the required fields.

     */

    public void testEquals() {

        

        DateAxis a1 = new DateAxis("Test");

        DateAxis a2 = new DateAxis("Test");

        assertTrue(a1.equals(a2));

        

        // tickUnit 

        a1.setTickUnit(new DateTickUnit(DateTickUnit.DAY, 7));

        assertFalse(a1.equals(a2));

        a2.setTickUnit(new DateTickUnit(DateTickUnit.DAY, 7));

        assertTrue(a1.equals(a2));



        // dateFormatOverride 

        a1.setDateFormatOverride(new SimpleDateFormat("yyyy"));

        assertFalse(a1.equals(a2));

        a2.setDateFormatOverride(new SimpleDateFormat("yyyy"));

        assertTrue(a1.equals(a2));



        // tickMarkPosition

        a1.setTickMarkPosition(DateTickMarkPosition.END);

        assertFalse(a1.equals(a2));

        a2.setTickMarkPosition(DateTickMarkPosition.END);

        assertTrue(a1.equals(a2));

        

        // timeline

        a1.setTimeline(SegmentedTimeline.newMondayThroughFridayTimeline());

        assertFalse(a1.equals(a2));

        a2.setTimeline(SegmentedTimeline.newMondayThroughFridayTimeline());

        assertTrue(a1.equals(a2));

        



    }

    

    /**

     * Confirm that cloning works.

     */

    public void testCloning() {

        DateAxis a1 = new DateAxis("Test");

        DateAxis a2 = null;

        try {

            a2 = (DateAxis) a1.clone();

        }

        catch (CloneNotSupportedException e) {

            System.err.println("DateAxisTests.testCloning: failed to clone.");

        }

        assertTrue(a1 != a2);

        assertTrue(a1.getClass() == a2.getClass());

        assertTrue(a1.equals(a2));

    }



    /**

     * Test that the setRange() method works.

     */

    public void testSetRange() {



        DateAxis axis = new DateAxis("Test Axis");

        Calendar calendar = Calendar.getInstance();

        calendar.set(1999, Calendar.JANUARY, 3);

        Date d1 = calendar.getTime();

        calendar.set(1999, Calendar.JANUARY, 31);

        Date d2 = calendar.getTime();

        axis.setRange(d1, d2);



        DateRange range = (DateRange) axis.getRange();

        assertEquals(d1, range.getLowerDate());

        assertEquals(d2, range.getUpperDate());



    }



    /**

     * Test that the setMaximumDate() method works.

     */

    public void testSetMaximumDate() {



        DateAxis axis = new DateAxis("Test Axis");

        Date date = new Date();

        axis.setMaximumDate(date);

        assertEquals(date, axis.getMaximumDate());



    }



    /**

     * Test that the setMinimumDate() method works.

     */

    public void testSetMinimumDate() {



        DateAxis axis = new DateAxis("Test Axis");

        Date d1 = new Date();

        Date d2 = new Date(d1.getTime() + 1);

        axis.setMaximumDate(d2);

        axis.setMinimumDate(d1);

        assertEquals(d1, axis.getMinimumDate());



    }

    

    /**

     * Tests two doubles for 'near enough' equality.

     * 

     * @param d1  number 1.

     * @param d2  number 2.

     * @param tolerance  maximum tolerance.

     * 

     * @return A boolean.

     */

    private boolean same(double d1, double d2, double tolerance) {

        return (Math.abs(d1 - d2) < tolerance);

    }

    

    /**

     * Test the translation of Java2D values to data values.

     */

    public void testJava2DToValue() {

        DateAxis axis = new DateAxis();

        axis.setRange(50.0, 100.0); 

        Rectangle2D dataArea = new Rectangle2D.Double(10.0, 50.0, 400.0, 300.0);

        double y1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);  

        assertTrue(same(y1, 95.8333333, 1.0)); 

        double y2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);   

        assertTrue(same(y2, 95.8333333, 1.0)); 

        double x1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);   

        assertTrue(same(x1, 58.125, 1.0)); 

        double x2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);   

        assertTrue(same(x2, 58.125, 1.0)); 

        axis.setInverted(true);

        double y3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);  

        assertTrue(same(y3, 54.1666667, 1.0)); 

        double y4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);   

        assertTrue(same(y4, 54.1666667, 1.0)); 

        double x3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);   

        assertTrue(same(x3, 91.875, 1.0)); 

        double x4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);   

        assertTrue(same(x4, 91.875, 1.0));   

    }

    

    /**

     * Serialize an instance, restore it, and check for equality.

     */

    public void testSerialization() {



        DateAxis a1 = new DateAxis("Test Axis");

        DateAxis a2 = null;



        try {

            ByteArrayOutputStream buffer = new ByteArrayOutputStream();

            ObjectOutput out = new ObjectOutputStream(buffer);

            out.writeObject(a1);

            out.close();



            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));

            a2 = (DateAxis) in.readObject();

            in.close();

        }

        catch (Exception e) {

            System.out.println(e.toString());

        }

        boolean b = a1.equals(a2);

        assertTrue(b);



    }



}

