segmentedtimelinetests2.java

关于jfreechart的电子说明书,一种说明图型使用的介绍

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2005, 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.]
 *
 * ----------------------------
 * SegmentedTimelineTests2.java
 * ----------------------------
 * (C) Copyright 2004, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: SegmentedTimelineTests2.java,v 1.6.2.1 2005/10/25 20:38:51 mungady Exp $
 *
 * Changes
 * -------
 * 02-Aug-2004 : Added standard header (DG);
 *
 */

package org.jfree.chart.axis.junit;

import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

import junit.framework.TestCase;

import org.jfree.chart.axis.SegmentedTimeline;

/**
 * @author fredatwork
 */
public class SegmentedTimelineTests2 extends TestCase {

    /**
     * Constructor
     */
    public SegmentedTimelineTests2() {
        super();
    }

    /**
     * Test 1 checks 9am Friday 26 March 2004 converts to a timeline value and 
     * back again correctly.  This is prior to Daylight Saving.
     */
    public void test1() {

        Calendar cal = Calendar.getInstance(Locale.UK);
        cal.set(Calendar.YEAR, 2004);
        cal.set(Calendar.MONTH, Calendar.MARCH);
        cal.set(Calendar.DAY_OF_MONTH, 26);
        cal.set(Calendar.HOUR_OF_DAY, 9);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);
        Date date = cal.getTime();
                  
        SegmentedTimeline timeline = getTimeline();      
        long value = timeline.toTimelineValue(date);   
        long ms = timeline.toMillisecond(value);
      
        Calendar cal2 = Calendar.getInstance(Locale.UK);
        cal2.setTime(new Date(ms));
        Date reverted = cal2.getTime();
      
        assertTrue("test1", value == (900000 * 34) 
                && date.getTime() == reverted.getTime());
 
    }

    /**
     * Test 2 checks 9.15am Friday 26 March 2004 converts to a timeline value 
     * and back again correctly.  This is prior to Daylight Saving.
     */
    public void test2() {
        Calendar cal = Calendar.getInstance(Locale.UK);
        cal.set(Calendar.YEAR, 2004);
        cal.set(Calendar.MONTH, Calendar.MARCH);
        cal.set(Calendar.DAY_OF_MONTH, 26);
        cal.set(Calendar.HOUR_OF_DAY, 9);
        cal.set(Calendar.MINUTE, 15);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);
        Date date = cal.getTime();
                  
        SegmentedTimeline timeline = getTimeline();      

        long value = timeline.toTimelineValue(date);   
        long ms = timeline.toMillisecond(value);
        Calendar cal2 = Calendar.getInstance(Locale.UK);
        cal2.setTime(new Date(ms));
        Date reverted = cal2.getTime();
        assertTrue(
            "test2", value == (900000 * 34 + 900000) 
            && date.getTime() == reverted.getTime()
        );
     }

    /**
     * Test 3 checks 9.30am Friday 26 March 2004 converts to a timeline value 
     * and back again correctly.  This is prior to Daylight Saving.
     */
    public void test3() {
        Calendar cal = Calendar.getInstance(Locale.UK);
        cal.set(Calendar.YEAR, 2004);
        cal.set(Calendar.MONTH, Calendar.MARCH);
        cal.set(Calendar.DAY_OF_MONTH, 26);
        cal.set(Calendar.HOUR_OF_DAY, 9);
        cal.set(Calendar.MINUTE, 30);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);
        Date date = cal.getTime();                 
        SegmentedTimeline timeline = getTimeline();      

        long value = timeline.toTimelineValue(date);   
        long ms = timeline.toMillisecond(value);
      
        Calendar cal2 = Calendar.getInstance(Locale.UK);
        cal2.setTime(new Date(ms));
        Date reverted = cal2.getTime();
        assertTrue(
            "test2", value == (900000 * 34 + 900000 * 2) 
            && date.getTime() == reverted.getTime()
        );
    }

    /**
     * Test 4 checks 9.30am Friday 26 March 2004 (+ 1 millisecond) converts to 
     * a timeline value and back again correctly.  This is prior to Daylight 
     * Saving.
     */
    public void test4() {
        Calendar cal = Calendar.getInstance(Locale.UK);
        cal.set(Calendar.YEAR, 2004);
        cal.set(Calendar.MONTH, Calendar.MARCH);
        cal.set(Calendar.DAY_OF_MONTH, 26);
        cal.set(Calendar.HOUR_OF_DAY, 9);
        cal.set(Calendar.MINUTE, 30);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 1);
        Date date = cal.getTime();
        SegmentedTimeline timeline = getTimeline();      

        long value = timeline.toTimelineValue(date);   
        long ms = timeline.toMillisecond(value);
        Calendar cal2 = Calendar.getInstance(Locale.UK);
        cal2.setTime(new Date(ms));
        Date reverted = cal2.getTime();
        assertTrue(
            "test4", value == (900000 * 34 + 900000 * 2 + 1) 
            && date.getTime() == reverted.getTime()
        );
    }

    /**
     * Test 5 checks 5.30pm Thursday 25 March 2004 converts to a timeline 
     * value and back again correctly.  As it is in the excluded segment, we 
     * expect it to map to 9am, Friday 26 March 2004.  This is prior to 
     * Daylight Saving.
     */
    public void test5() {
        Calendar cal = Calendar.getInstance(Locale.UK);
        cal.set(Calendar.YEAR, 2004);
        cal.set(Calendar.MONTH, Calendar.MARCH);
        cal.set(Calendar.DAY_OF_MONTH, 25);
        cal.set(Calendar.HOUR_OF_DAY, 17);
        cal.set(Calendar.MINUTE, 30);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);
        Date date = cal.getTime();
        SegmentedTimeline timeline = getTimeline();      

        long value = timeline.toTimelineValue(date);   
        long ms = timeline.toMillisecond(value);
        Calendar cal2 = Calendar.getInstance(Locale.UK);
        cal2.setTime(new Date(ms));
        Date reverted = cal2.getTime();
        Calendar expectedReverted = Calendar.getInstance(Locale.UK);
        expectedReverted.set(Calendar.YEAR, 2004);
        expectedReverted.set(Calendar.MONTH, Calendar.MARCH);
        expectedReverted.set(Calendar.DAY_OF_MONTH, 26);
        expectedReverted.set(Calendar.HOUR_OF_DAY, 9);
        expectedReverted.set(Calendar.MINUTE, 0);
        expectedReverted.set(Calendar.SECOND, 0);
        expectedReverted.set(Calendar.MILLISECOND, 0);
      
        assertTrue(
            "test5", value == (900000 * 34) 
            && expectedReverted.getTime().getTime() == reverted.getTime()
        );
    }