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jfreechart example source code file (XYTextAnnotationTests.java)

This example jfreechart source code file (XYTextAnnotationTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

abc, abc, awt, bytearrayinputstream, bytearrayoutputstream, bytearrayoutputstream, clonenotsupportedexception, font, gradientpaint, io, serif, text, text, xytextannotation, xytextannotation, xytextannotationtests

The jfreechart XYTextAnnotationTests.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2009, 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.]
 *
 * --------------------------
 * XYTextAnnotationTests.java
 * --------------------------
 * (C) Copyright 2003-2009, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 19-Aug-2003 : Version 1 (DG);
 * 07-Jan-2005 : Added hashCode() test (DG);
 * 26-Jan-2006 : Extended equals() test (DG);
 * 23-Apr-2008 : Added testPublicCloneable() (DG);
 * 12-Feb-2009 : Updated testEquals() (DG);
 *
 */

package org.jfree.chart.annotations.junit;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.GradientPaint;
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.XYTextAnnotation;
import org.jfree.ui.TextAnchor;
import org.jfree.util.PublicCloneable;

/**
 * Tests for the {@link XYTextAnnotation} class.
 */
public class XYTextAnnotationTests extends TestCase {

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

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

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        XYTextAnnotation a1 = new XYTextAnnotation("Text", 10.0, 20.0);
        XYTextAnnotation a2 = new XYTextAnnotation("Text", 10.0, 20.0);
        assertTrue(a1.equals(a2));

        // text
        a1 = new XYTextAnnotation("ABC", 10.0, 20.0);
        assertFalse(a1.equals(a2));
        a2 = new XYTextAnnotation("ABC", 10.0, 20.0);
        assertTrue(a1.equals(a2));

        // x
        a1 = new XYTextAnnotation("ABC", 11.0, 20.0);
        assertFalse(a1.equals(a2));
        a2 = new XYTextAnnotation("ABC", 11.0, 20.0);
        assertTrue(a1.equals(a2));

        // y
        a1 = new XYTextAnnotation("ABC", 11.0, 22.0);
        assertFalse(a1.equals(a2));
        a2 = new XYTextAnnotation("ABC", 11.0, 22.0);
        assertTrue(a1.equals(a2));

        // font
        a1.setFont(new Font("Serif", Font.PLAIN, 23));
        assertFalse(a1.equals(a2));
        a2.setFont(new Font("Serif", Font.PLAIN, 23));
        assertTrue(a1.equals(a2));

        // paint
        GradientPaint gp1 = new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
                4.0f, Color.yellow);
        GradientPaint gp2 = new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
                4.0f, Color.yellow);
        a1.setPaint(gp1);
        assertFalse(a1.equals(a2));
        a2.setPaint(gp2);
        assertTrue(a1.equals(a2));

        // rotation anchor
        a1.setRotationAnchor(TextAnchor.BASELINE_RIGHT);
        assertFalse(a1.equals(a2));
        a2.setRotationAnchor(TextAnchor.BASELINE_RIGHT);
        assertTrue(a1.equals(a2));

        // rotation angle
        a1.setRotationAngle(12.3);
        assertFalse(a1.equals(a2));
        a2.setRotationAngle(12.3);
        assertTrue(a1.equals(a2));

        // text anchor
        a1.setTextAnchor(TextAnchor.BASELINE_RIGHT);
        assertFalse(a1.equals(a2));
        a2.setTextAnchor(TextAnchor.BASELINE_RIGHT);
        assertTrue(a1.equals(a2));

        a1.setBackgroundPaint(gp1);
        assertFalse(a1.equals(a2));
        a2.setBackgroundPaint(gp1);
        assertTrue(a1.equals(a2));

        a1.setOutlinePaint(gp1);
        assertFalse(a1.equals(a2));
        a2.setOutlinePaint(gp1);
        assertTrue(a1.equals(a2));

        a1.setOutlineStroke(new BasicStroke(1.2f));
        assertFalse(a1.equals(a2));
        a2.setOutlineStroke(new BasicStroke(1.2f));
        assertTrue(a1.equals(a2));

        a1.setOutlineVisible(!a1.isOutlineVisible());
        assertFalse(a1.equals(a2));
        a2.setOutlineVisible(a1.isOutlineVisible());
        assertTrue(a1.equals(a2));

    }

    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashCode() {
        XYTextAnnotation a1 = new XYTextAnnotation("Text", 10.0, 20.0);
        XYTextAnnotation a2 = new XYTextAnnotation("Text", 10.0, 20.0);
        assertTrue(a1.equals(a2));
        int h1 = a1.hashCode();
        int h2 = a2.hashCode();
        assertEquals(h1, h2);
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        XYTextAnnotation a1 = new XYTextAnnotation("Text", 10.0, 20.0);
        XYTextAnnotation a2 = null;
        try {
            a2 = (XYTextAnnotation) 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() {
        XYTextAnnotation a1 = new XYTextAnnotation("Text", 10.0, 20.0);
        assertTrue(a1 instanceof PublicCloneable);
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        XYTextAnnotation a1 = new XYTextAnnotation("Text", 10.0, 20.0);
        a1.setOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.blue));
        XYTextAnnotation 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 = (XYTextAnnotation) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(a1, a2);
    }

}

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