/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, 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.]
*
* ----------------------------
* SimpleHistogramBinTests.java
* ----------------------------
* (C) Copyright 2005-2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 10-Jan-2005 : Version 1 (DG);
*
*/
package org.jfree.data.statistics.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.statistics.SimpleHistogramBin;
/**
* Tests for the {@link SimpleHistogramBin} class.
*/
public class SimpleHistogramBinTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return The test suite.
*/
public static Test suite() {
return new TestSuite(SimpleHistogramBinTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public SimpleHistogramBinTests(String name) {
super(name);
}
/**
* Some checks for the accepts() method.
*/
public void testAccepts() {
SimpleHistogramBin bin1 = new SimpleHistogramBin(1.0, 2.0);
assertFalse(bin1.accepts(0.0));
assertTrue(bin1.accepts(1.0));
assertTrue(bin1.accepts(1.5));
assertTrue(bin1.accepts(2.0));
assertFalse(bin1.accepts(2.1));
assertFalse(bin1.accepts(Double.NaN));
SimpleHistogramBin bin2
= new SimpleHistogramBin(1.0, 2.0, false, false);
assertFalse(bin2.accepts(0.0));
assertFalse(bin2.accepts(1.0));
assertTrue(bin2.accepts(1.5));
assertFalse(bin2.accepts(2.0));
assertFalse(bin2.accepts(2.1));
assertFalse(bin2.accepts(Double.NaN));
}
/**
* Some checks for the overlapsWith() method.
*/
public void testOverlapsWidth() {
SimpleHistogramBin b1 = new SimpleHistogramBin(1.0, 2.0);
SimpleHistogramBin b2 = new SimpleHistogramBin(2.0, 3.0);
SimpleHistogramBin b3 = new SimpleHistogramBin(3.0, 4.0);
SimpleHistogramBin b4 = new SimpleHistogramBin(0.0, 5.0);
SimpleHistogramBin b5 = new SimpleHistogramBin(2.0, 3.0, false, true);
SimpleHistogramBin b6 = new SimpleHistogramBin(2.0, 3.0, true, false);
assertTrue(b1.overlapsWith(b2));
assertTrue(b2.overlapsWith(b1));
assertFalse(b1.overlapsWith(b3));
assertFalse(b3.overlapsWith(b1));
assertTrue(b1.overlapsWith(b4));
assertTrue(b4.overlapsWith(b1));
assertFalse(b1.overlapsWith(b5));
assertFalse(b5.overlapsWith(b1));
assertTrue(b1.overlapsWith(b6));
assertTrue(b6.overlapsWith(b1));
}
/**
* Ensure that the equals() method can distinguish all fields.
*/
public void testEquals() {
SimpleHistogramBin b1 = new SimpleHistogramBin(1.0, 2.0);
SimpleHistogramBin b2 = new SimpleHistogramBin(1.0, 2.0);
assertTrue(b1.equals(b2));
assertTrue(b2.equals(b1));
b1 = new SimpleHistogramBin(1.1, 2.0, true, true);
assertFalse(b1.equals(b2));
b2 = new SimpleHistogramBin(1.1, 2.0, true, true);
assertTrue(b1.equals(b2));
b1 = new SimpleHistogramBin(1.1, 2.2, true, true);
assertFalse(b1.equals(b2));
b2 = new SimpleHistogramBin(1.1, 2.2, true, true);
assertTrue(b1.equals(b2));
b1 = new SimpleHistogramBin(1.1, 2.2, false, true);
assertFalse(b1.equals(b2));
b2 = new SimpleHistogramBin(1.1, 2.2, false, true);
assertTrue(b1.equals(b2));
b1 = new SimpleHistogramBin(1.1, 2.2, false, false);
assertFalse(b1.equals(b2));
b2 = new SimpleHistogramBin(1.1, 2.2, false, false);
assertTrue(b1.equals(b2));
b1.setItemCount(99);
assertFalse(b1.equals(b2));
b2.setItemCount(99);
assertTrue(b1.equals(b2));
}
/**
* Some checks for the clone() method.
*/
public void testCloning() {
SimpleHistogramBin b1 = new SimpleHistogramBin(1.1, 2.2, false, true);
b1.setItemCount(99);
SimpleHistogramBin b2 = null;
try {
b2 = (SimpleHistogramBin) b1.clone();
}
catch (CloneNotSupportedException e) {
System.err.println("Failed to clone.");
}
assertTrue(b1 != b2);
assertTrue(b1.getClass() == b2.getClass());
assertTrue(b1.equals(b2));
// check that clone is independent of the original
b2.setItemCount(111);
assertFalse(b1.equals(b2));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
SimpleHistogramBin b1 = new SimpleHistogramBin(1.0, 2.0, false, true);
b1.setItemCount(123);
SimpleHistogramBin b2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(b1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray())
);
b2 = (SimpleHistogramBin) in.readObject();
in.close();
}
catch (Exception e) {
System.out.println(e.toString());
}
assertEquals(b1, b2);
}
}