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File org.jfree.data.time.junit.SimpleTimePeriodTests.java

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/* ===========================================================
 * 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.]
 *
 * --------------------------
 * SimpleTimePeriodTests.java
 * --------------------------
 * (C) Copyright 2003-2005, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: SimpleTimePeriodTests.java,v 1.5.2.1 2005/10/25 21:35:47 mungady Exp $
 *
 * Changes
 * -------
 * 13-Mar-2003 : Version 1 (DG);
 * 21-Oct-2003 : Added 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 java.util.Date;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.jfree.data.time.SimpleTimePeriod;

/**
 * Tests for the {@link SimpleTimePeriod} class.
 */

public class SimpleTimePeriodTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */

    public static Test suite() {
        return new TestSuite(SimpleTimePeriodTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */

    public SimpleTimePeriodTests(String name) {
        super(name);
    }

    /**
     * Common test setup.
     */

    protected void setUp() {
        // no setup
    }

    /**
     * Check that an instance is equal to itself.
     *
     * SourceForge Bug ID: 558850.
     */

    public void testEqualsSelf() {
        SimpleTimePeriod p = new SimpleTimePeriod(
            new Date(1000L), new Date(1001L)
        );
        assertTrue(p.equals(p));
    }

    /**
     * Test the equals() method.
     */

    public void testEquals() {
        SimpleTimePeriod p1 = new SimpleTimePeriod(
            new Date(1000L), new Date(1004L)
        );
        SimpleTimePeriod p2 = new SimpleTimePeriod(
            new Date(1000L), new Date(1004L)
        );
        assertTrue(p1.equals(p2));
        assertTrue(p2.equals(p1));
        
        p1 = new SimpleTimePeriod(new Date(1002L), new Date(1004L));
        assertFalse(p1.equals(p2));
        p2 = new SimpleTimePeriod(new Date(1002L), new Date(1004L));
        assertTrue(p1.equals(p2));
        
        p1 = new SimpleTimePeriod(new Date(1002L), new Date(1003L));
        assertFalse(p1.equals(p2));
        p2 = new SimpleTimePeriod(new Date(1002L), new Date(1003L));
        assertTrue(p1.equals(p2));   
    }

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

    public void testSerialization() {
        SimpleTimePeriod p1 = new SimpleTimePeriod(
            new Date(1000L), new Date(1001L)
        );
        SimpleTimePeriod p2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(p1);
            out.close();
            ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray())
            );
            p2 = (SimpleTimePeriod) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        assertEquals(p1, p2);
    }
    
    /**
     * Two objects that are equal are required to return the same hashCode. 
     */

    public void testHashcode() {
        SimpleTimePeriod s1 = new SimpleTimePeriod(
            new Date(10L), new Date(20L)
        );
        SimpleTimePeriod s2 = new SimpleTimePeriod(
            new Date(10L), new Date(20L)
        );
        assertTrue(s1.equals(s2));
        int h1 = s1.hashCode();
        int h2 = s2.hashCode();
        assertEquals(h1, h2);
    }

    /** 
     * This class is immutable, so it should not implement Cloneable.
     */

    public void testClone() {
        SimpleTimePeriod s1 = new SimpleTimePeriod(
            new Date(10L), new Date(20L)
        );
        assertFalse(s1 instanceof Cloneable);
    }
    
    /**
     * Some checks for the compareTo() method.
     */

    public void testCompareTo() {
        SimpleTimePeriod s1 = new SimpleTimePeriod(
            new Date(10L), new Date(20L)
        );
        SimpleTimePeriod s2 = new SimpleTimePeriod(
            new Date(10L), new Date(20L)
        );
        assertEquals(0, s1.compareTo(s2));
        
        s1 = new SimpleTimePeriod(new Date(9L), new Date(21L));
        s2 = new SimpleTimePeriod(new Date(10L), new Date(20L));
        assertEquals(-1, s1.compareTo(s2));
        
        s1 = new SimpleTimePeriod(new Date(11L), new Date(19L));
        s2 = new SimpleTimePeriod(new Date(10L), new Date(20L));
        assertEquals(1, s1.compareTo(s2));

        s1 = new SimpleTimePeriod(new Date(9L), new Date(19L));
        s2 = new SimpleTimePeriod(new Date(10L), new Date(20L));
        assertEquals(-1, s1.compareTo(s2));
    
        s1 = new SimpleTimePeriod(new Date(11L), new Date(21));
        s2 = new SimpleTimePeriod(new Date(10L), new Date(20L));
        assertEquals(1, s1.compareTo(s2));

        s1 = new SimpleTimePeriod(new Date(10L), new Date(18));
        s2 = new SimpleTimePeriod(new Date(10L), new Date(20L));
        assertEquals(-1, s1.compareTo(s2));

        s1 = new SimpleTimePeriod(new Date(10L), new Date(22));
        s2 = new SimpleTimePeriod(new Date(10L), new Date(20L));
        assertEquals(1, s1.compareTo(s2));
    }
    
}

File Information:

file name:SimpleTimePeriodTests.java
package:org.jfree.data.time.junit
qualified name:org.jfree.data.time.junit.SimpleTimePeriodTests.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/jfree/data/time/junit/SimpleTimePeriodTests.java
size:6.772 KB (6935 B)
uploaded: 2018-01-07 12:03:36 GMT+0000
last update: 2006-08-25 12:16:46 GMT+0000
last access: 2018-04-23 23:07:26 GMT+0000

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