timeseriestests.java

用于制作报表的中间件控件,纯java编写,还附带有数据库操作的源代码

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2007, 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.]
 *
 * --------------------
 * TimeSeriesTests.java
 * --------------------
 * (C) Copyright 2001-2007, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 16-Nov-2001 : Version 1 (DG);
 * 17-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 13-Mar-2003 : Added serialization test (DG);
 * 15-Oct-2003 : Added test for setMaximumItemCount method (DG);
 * 23-Aug-2004 : Added test that highlights a bug where the addOrUpdate() 
 *               method can lead to more than maximumItemCount items in the 
 *               dataset (DG);
 * 24-May-2006 : Added new tests (DG);
 * 31-Oct-2007 : New hashCode() test (DG);
 *
 */

package org.jfree.data.time.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.general.SeriesChangeEvent;
import org.jfree.data.general.SeriesChangeListener;
import org.jfree.data.general.SeriesException;
import org.jfree.data.time.Day;
import org.jfree.data.time.FixedMillisecond;
import org.jfree.data.time.Month;
import org.jfree.data.time.RegularTimePeriod;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesDataItem;
import org.jfree.data.time.Year;
import org.jfree.date.MonthConstants;

/**
 * A collection of test cases for the {@link TimeSeries} class.
 */
public class TimeSeriesTests extends TestCase implements SeriesChangeListener {

    /** A time series. */
    private TimeSeries seriesA;

    /** A time series. */
    private TimeSeries seriesB;

    /** A time series. */
    private TimeSeries seriesC;

    /** A flag that indicates whether or not a change event was fired. */
    private boolean gotSeriesChangeEvent = false;
    
    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */
    public static Test suite() {
        return new TestSuite(TimeSeriesTests.class);
    }

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

    /**
     * Common test setup.
     */
    protected void setUp() {

        this.seriesA = new TimeSeries("Series A", Year.class);
        try {
            this.seriesA.add(new Year(2000), new Integer(102000));
            this.seriesA.add(new Year(2001), new Integer(102001));
            this.seriesA.add(new Year(2002), new Integer(102002));
            this.seriesA.add(new Year(2003), new Integer(102003));
            this.seriesA.add(new Year(2004), new Integer(102004));
            this.seriesA.add(new Year(2005), new Integer(102005));
        }
        catch (SeriesException e) {
            System.err.println("Problem creating series.");
        }

        this.seriesB = new TimeSeries("Series B", Year.class);
        try {
            this.seriesB.add(new Year(2006), new Integer(202006));
            this.seriesB.add(new Year(2007), new Integer(202007));
            this.seriesB.add(new Year(2008), new Integer(202008));
        }
        catch (SeriesException e) {
            System.err.println("Problem creating series.");
        }

        this.seriesC = new TimeSeries("Series C", Year.class);
        try {
            this.seriesC.add(new Year(1999), new Integer(301999));
            this.seriesC.add(new Year(2000), new Integer(302000));
            this.seriesC.add(new Year(2002), new Integer(302002));
        }
        catch (SeriesException e) {
            System.err.println("Problem creating series.");
        }

    }
    
    /**
     * Sets the flag to indicate that a {@link SeriesChangeEvent} has been 
     * received.
     * 
     * @param event  the event.
     */
    public void seriesChanged(SeriesChangeEvent event) {
        this.gotSeriesChangeEvent = true;   
    }

    /**
     * Check that cloning works.
     */
    public void testClone() {

        TimeSeries series = new TimeSeries("Test Series");

        RegularTimePeriod jan1st2002 = new Day(1, MonthConstants.JANUARY, 2002);
        try {
            series.add(jan1st2002, new Integer(42));
        }
        catch (SeriesException e) {
            System.err.println("Problem adding to series.");
        }

        TimeSeries clone = null;
        try {
            clone = (TimeSeries) series.clone();
            clone.setKey("Clone Series");
            try {
                clone.update(jan1st2002, new Integer(10));
            }
            catch (SeriesException e) {
                e.printStackTrace();
            }
        }
        catch (CloneNotSupportedException e) {
            assertTrue(false);  
        }
        
        int seriesValue = series.getValue(jan1st2002).intValue();
        int cloneValue = Integer.MAX_VALUE;
        if (clone != null) {
        	cloneValue = clone.getValue(jan1st2002).intValue();
        }

        assertEquals(42, seriesValue);
        assertEquals(10, cloneValue);
        assertEquals("Test Series", series.getKey());
        if (clone != null) {
            assertEquals("Clone Series", clone.getKey());
        }
        else {
        	assertTrue(false);
        }

    }

    /**
     * Add a value to series A for 1999.  It should be added at index 0.
     */
    public void testAddValue() {

        try {
            this.seriesA.add(new Year(1999), new Integer(1));
        }
        catch (SeriesException e) {
            System.err.println("Problem adding to series.");
        }

        int value = this.seriesA.getValue(0).intValue();
        assertEquals(1, value);

    }

    /**
     * Tests the retrieval of values.
     */
    public void testGetValue() {

        Number value1 = this.seriesA.getValue(new Year(1999));
        assertNull(value1);
        int value2 = this.seriesA.getValue(new Year(2000)).intValue();
        assertEquals(102000, value2);

    }

    /**
     * Tests the deletion of values.
     */
    public void testDelete() {
        this.seriesA.delete(0, 0);
        assertEquals(5, this.seriesA.getItemCount());
        Number value = this.seriesA.getValue(new Year(2000));
        assertNull(value);
    }

    /**
     * Basic tests for the delete() method.
     */
    public void testDelete2() {
        TimeSeries s1 = new TimeSeries("Series", Year.class);    
        s1.add(new Year(2000), 13.75);
        s1.add(new Year(2001), 11.90);
        s1.add(new Year(2002), null);
        s1.addChangeListener(this);
        this.gotSeriesChangeEvent = false;
        s1.delete(new Year(2001));
        assertTrue(this.gotSeriesChangeEvent);
        assertEquals(2, s1.getItemCount());
        assertEquals(null, s1.getValue(new Year(2001)));
        
        // try deleting a time period that doesn't exist...
        this.gotSeriesChangeEvent = false;
        s1.delete(new Year(2006));
        assertFalse(this.gotSeriesChangeEvent);
        
        // try deleting null
        try {
            s1.delete(null);
            fail("Expected IllegalArgumentException.");
        }
        catch (IllegalArgumentException e) {
            // expected
        }
    }
    
    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        TimeSeries s1 = new TimeSeries("A test", Year.class);
        s1.add(new Year(2000), 13.75);
        s1.add(new Year(2001), 11.90);
        s1.add(new Year(2002), null);
        s1.add(new Year(2005), 19.32);
        s1.add(new Year(2007), 16.89);
        TimeSeries s2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(s1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray())
            );
            s2 = (TimeSeries) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        assertTrue(s1.equals(s2));

    }

    /**
     * Tests the equals method.
     */
    public void testEquals() {
        TimeSeries s1 = new TimeSeries("Time Series 1");
        TimeSeries s2 = new TimeSeries("Time Series 2");
        boolean b1 = s1.equals(s2);
        assertFalse("b1", b1);

        s2.setKey("Time Series 1");
        boolean b2 = s1.equals(s2);
        assertTrue("b2", b2);

        RegularTimePeriod p1 = new Day();
        RegularTimePeriod p2 = p1.next();
        s1.add(p1, 100.0);
        s1.add(p2, 200.0);
        boolean b3 = s1.equals(s2);
        assertFalse("b3", b3);

        s2.add(p1, 100.0);
        s2.add(p2, 200.0);
        boolean b4 = s1.equals(s2);
        assertTrue("b4", b4);

        s1.setMaximumItemCount(100);
        boolean b5 = s1.equals(s2);
        assertFalse("b5", b5);

        s2.setMaximumItemCount(100);
        boolean b6 = s1.equals(s2);
        assertTrue("b6", b6);

        s1.setMaximumItemAge(100);
        boolean b7 = s1.equals(s2);
        assertFalse("b7", b7);

        s2.setMaximumItemAge(100);
        boolean b8 = s1.equals(s2);
        assertTrue("b8", b8);
    }
    
    /**
     * Tests a specific bug report where null arguments in the constructor 
     * cause the equals() method to fail.  Fixed for 0.9.21.
     */
    public void testEquals2() {
        TimeSeries s1 = new TimeSeries("Series", null, null, Day.class);
        TimeSeries s2 = new TimeSeries("Series", null, null, Day.class);
        assertTrue(s1.equals(s2));
    }
    
    /**
     * Some tests to ensure that the createCopy(RegularTimePeriod, 
     * RegularTimePeriod) method is functioning correctly.
     */
    public void testCreateCopy1() {
        
        TimeSeries series = new TimeSeries("Series", Month.class);
        series.add(new Month(MonthConstants.JANUARY, 2003), 45.0);
        series.add(new Month(MonthConstants.FEBRUARY, 2003), 55.0);
        series.add(new Month(MonthConstants.JUNE, 2003), 35.0);
        series.add(new Month(MonthConstants.NOVEMBER, 2003), 85.0);
        series.add(new Month(MonthConstants.DECEMBER, 2003), 75.0);
        
        try {
            // copy a range before the start of the series data...
            TimeSeries result1 = series.createCopy(
                    new Month(MonthConstants.NOVEMBER, 2002),
                    new Month(MonthConstants.DECEMBER, 2002));
            assertEquals(0, result1.getItemCount());
        
            // copy a range that includes only the first item in the series...
            TimeSeries result2 = series.createCopy(
                    new Month(MonthConstants.NOVEMBER, 2002),
                    new Month(MonthConstants.JANUARY, 2003));
            assertEquals(1, result2.getItemCount());
        
            // copy a range that begins before and ends in the middle of the 
            // series...