/* ===========================================================
* 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.]
*
* ------------------------
* VectorDataItemTests.java
* ------------------------
* (C) Copyright 2007, 2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 30-Jan-2007 : Version 1 (DG);
*
*/
package org.jfree.data.xy;
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 static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
/**
* Tests for the {@link VectorDataItem} class.
*/
public class VectorDataItemTest {
/**
* Test that the equals() method distinguishes all fields.
*/
@Test
public void testEquals() {
// default instances
VectorDataItem v1 = new VectorDataItem(1.0, 2.0, 3.0, 4.0);
VectorDataItem v2 = new VectorDataItem(1.0, 2.0, 3.0, 4.0);
assertEquals(v1, v2);
assertEquals(v2, v1);
v1 = new VectorDataItem(1.1, 2.0, 3.0, 4.0);
assertFalse(v1.equals(v2));
v2 = new VectorDataItem(1.1, 2.0, 3.0, 4.0);
assertEquals(v1, v2);
v1 = new VectorDataItem(1.1, 2.2, 3.0, 4.0);
assertFalse(v1.equals(v2));
v2 = new VectorDataItem(1.1, 2.2, 3.0, 4.0);
assertEquals(v1, v2);
v1 = new VectorDataItem(1.1, 2.2, 3.3, 4.0);
assertFalse(v1.equals(v2));
v2 = new VectorDataItem(1.1, 2.2, 3.3, 4.0);
assertEquals(v1, v2);
v1 = new VectorDataItem(1.1, 2.2, 3.3, 4.4);
assertFalse(v1.equals(v2));
v2 = new VectorDataItem(1.1, 2.2, 3.3, 4.4);
assertEquals(v1, v2);
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashcode() {
VectorDataItem v1 = new VectorDataItem(1.0, 2.0, 3.0, 4.0);
VectorDataItem v2 = new VectorDataItem(1.0, 2.0, 3.0, 4.0);
assertEquals(v1, v2);
int h1 = v1.hashCode();
int h2 = v2.hashCode();
assertEquals(h1, h2);
}
/**
* Check cloning.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
VectorDataItem v1 = new VectorDataItem(1.0, 2.0, 3.0, 4.0);
VectorDataItem v2 = (VectorDataItem) v1.clone();
assertNotSame(v1, v2);
assertSame(v1.getClass(), v2.getClass());
assertEquals(v1, v2);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
VectorDataItem v1 = new VectorDataItem(1.0, 2.0, 3.0, 4.0);
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(v1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
VectorDataItem v2 = (VectorDataItem) in.readObject();
in.close();
assertEquals(v1, v2);
}
}