/* ===========================================================
* 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.]
*
* --------------------------
* SimpleTimePeriodTests.java
* --------------------------
* (C) Copyright 2003-2008, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 13-Mar-2003 : Version 1 (DG);
* 21-Oct-2003 : Added hashCode() test (DG);
* 02-Jun-2008 : Added a test for immutability (DG);
*
*/
package org.jfree.data.time;
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 java.util.Date;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
/**
* Tests for the {@link SimpleTimePeriod} class.
*/
public class SimpleTimePeriodTest {
/**
* Check that an instance is equal to itself.
*
* SourceForge Bug ID: 558850.
*/
@Test
public void testEqualsSelf() {
SimpleTimePeriod p = new SimpleTimePeriod(new Date(1000L),
new Date(1001L));
assertEquals(p, p);
}
/**
* Test the equals() method.
*/
@Test
public void testEquals() {
SimpleTimePeriod p1 = new SimpleTimePeriod(new Date(1000L),
new Date(1004L));
SimpleTimePeriod p2 = new SimpleTimePeriod(new Date(1000L),
new Date(1004L));
assertEquals(p1, p2);
assertEquals(p2, p1);
p1 = new SimpleTimePeriod(new Date(1002L), new Date(1004L));
assertFalse(p1.equals(p2));
p2 = new SimpleTimePeriod(new Date(1002L), new Date(1004L));
assertEquals(p1, p2);
p1 = new SimpleTimePeriod(new Date(1002L), new Date(1003L));
assertFalse(p1.equals(p2));
p2 = new SimpleTimePeriod(new Date(1002L), new Date(1003L));
assertEquals(p1, p2);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
SimpleTimePeriod p1 = new SimpleTimePeriod(new Date(1000L),
new Date(1001L));
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(p1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
SimpleTimePeriod p2 = (SimpleTimePeriod) in.readObject();
in.close();
assertEquals(p1, p2);
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashcode() {
SimpleTimePeriod s1 = new SimpleTimePeriod(new Date(10L),
new Date(20L));
SimpleTimePeriod s2 = new SimpleTimePeriod(new Date(10L),
new Date(20L));
assertEquals(s1, s2);
int h1 = s1.hashCode();
int h2 = s2.hashCode();
assertEquals(h1, h2);
}
/**
* This class is immutable, so it should not implement Cloneable.
*/
@Test
public void testClone() {
SimpleTimePeriod s1 = new SimpleTimePeriod(new Date(10L),
new Date(20));
assertFalse(s1 instanceof Cloneable);
}
/**
* Some simple checks for immutability.
*/
@Test
public void testImmutable() {
SimpleTimePeriod p1 = new SimpleTimePeriod(new Date(10L),
new Date(20L));
SimpleTimePeriod p2 = new SimpleTimePeriod(new Date(10L),
new Date(20L));
assertEquals(p1, p2);
p1.getStart().setTime(11L);
assertEquals(p1, p2);
Date d1 = new Date(10L);
Date d2 = new Date(20L);
p1 = new SimpleTimePeriod(d1, d2);
d1.setTime(11L);
assertEquals(new Date(10L), p1.getStart());
}
/**
* Some checks for the compareTo() method.
*/
@Test
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));
}
}