jfreechart example source code file (CategoryPointerAnnotationTests.java)

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Java - jfreechart tags/keywords

a, a, awt, bytearrayinputstream, bytearrayoutputstream, categorypointerannotation, categorypointerannotation, categorypointerannotationtests, clonenotsupportedexception, io, key, key, label, label, label2, objectinput

The jfreechart CategoryPointerAnnotationTests.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, 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.]
 *
 * -----------------------------------
 * CategoryPointerAnnotationTests.java
 * -----------------------------------
 * (C) Copyright 2006-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 02-Oct-2006 : Version 1 (DG);
 * 23-Apr-2008 : Added testPublicCloneable() (DG);
 *
 */

package org.jfree.chart.annotations.junit;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Stroke;
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.chart.annotations.CategoryPointerAnnotation;
import org.jfree.util.PublicCloneable;

/**
 * Tests for the {@link CategoryPointerAnnotation} class.
 */
public class CategoryPointerAnnotationTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */
    public static Test suite() {
        return new TestSuite(CategoryPointerAnnotationTests.class);
    }

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

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {

        CategoryPointerAnnotation a1 = new CategoryPointerAnnotation("Label",
                "Key 1", 20.0, Math.PI);
        CategoryPointerAnnotation a2 = new CategoryPointerAnnotation("Label",
                "Key 1", 20.0, Math.PI);
        assertTrue(a1.equals(a2));

        a1 = new CategoryPointerAnnotation("Label2", "Key 1", 20.0, Math.PI);
        assertFalse(a1.equals(a2));
        a2 = new CategoryPointerAnnotation("Label2", "Key 1", 20.0, Math.PI);
        assertTrue(a1.equals(a2));

        a1.setCategory("Key 2");
        assertFalse(a1.equals(a2));
        a2.setCategory("Key 2");
        assertTrue(a1.equals(a2));

        a1.setValue(22.0);
        assertFalse(a1.equals(a2));
        a2.setValue(22.0);
        assertTrue(a1.equals(a2));

        //private double angle;
        a1.setAngle(Math.PI / 4.0);
        assertFalse(a1.equals(a2));
        a2.setAngle(Math.PI / 4.0);
        assertTrue(a1.equals(a2));

        //private double tipRadius;
        a1.setTipRadius(20.0);
        assertFalse(a1.equals(a2));
        a2.setTipRadius(20.0);
        assertTrue(a1.equals(a2));

        //private double baseRadius;
        a1.setBaseRadius(5.0);
        assertFalse(a1.equals(a2));
        a2.setBaseRadius(5.0);
        assertTrue(a1.equals(a2));

        //private double arrowLength;
        a1.setArrowLength(33.0);
        assertFalse(a1.equals(a2));
        a2.setArrowLength(33.0);
        assertTrue(a1.equals(a2));

        //private double arrowWidth;
        a1.setArrowWidth(9.0);
        assertFalse(a1.equals(a2));
        a2.setArrowWidth(9.0);
        assertTrue(a1.equals(a2));

        //private Stroke arrowStroke;
        Stroke stroke = new BasicStroke(1.5f);
        a1.setArrowStroke(stroke);
        assertFalse(a1.equals(a2));
        a2.setArrowStroke(stroke);
        assertTrue(a1.equals(a2));

        //private Paint arrowPaint;
        a1.setArrowPaint(Color.blue);
        assertFalse(a1.equals(a2));
        a2.setArrowPaint(Color.blue);
        assertTrue(a1.equals(a2));

        //private double labelOffset;
        a1.setLabelOffset(10.0);
        assertFalse(a1.equals(a2));
        a2.setLabelOffset(10.0);
        assertTrue(a1.equals(a2));

    }

    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashCode() {
        CategoryPointerAnnotation a1 = new CategoryPointerAnnotation("Label",
                "A", 20.0, Math.PI);
        CategoryPointerAnnotation a2 = new CategoryPointerAnnotation("Label",
                "A", 20.0, Math.PI);
        assertTrue(a1.equals(a2));
        int h1 = a1.hashCode();
        int h2 = a2.hashCode();
        assertEquals(h1, h2);
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        CategoryPointerAnnotation a1 = new CategoryPointerAnnotation("Label",
                "A", 20.0, Math.PI);
        CategoryPointerAnnotation a2 = null;
        try {
            a2 = (CategoryPointerAnnotation) a1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(a1 != a2);
        assertTrue(a1.getClass() == a2.getClass());
        assertTrue(a1.equals(a2));
    }

    /**
     * Checks that this class implements PublicCloneable.
     */
    public void testPublicCloneable() {
        CategoryPointerAnnotation a1 = new CategoryPointerAnnotation("Label",
                "A", 20.0, Math.PI);
        assertTrue(a1 instanceof PublicCloneable);
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        CategoryPointerAnnotation a1 = new CategoryPointerAnnotation("Label",
                "A", 20.0, Math.PI);
        CategoryPointerAnnotation a2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(a1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            a2 = (CategoryPointerAnnotation) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(a1, a2);

    }

}