jfreechart example source code file (ValueAxisTests.java)

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Java - jfreechart tags/keywords

awt, clonenotsupportedexception, epsilon, epsilon, numberaxis, numberaxis, test, test, testcase, title, valueaxis, valueaxis, valueaxistests, xyseries, xyseriescollection

The jfreechart ValueAxisTests.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.]
 *
 * -------------------
 * ValueAxisTests.java
 * -------------------
 * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 13-Aug-2003 : Version 1 (DG);
 * 22-Mar-2007 : Extended testEquals() for new field (DG);
 *
 */

package org.jfree.chart.axis.junit;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Stroke;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.Range;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

/**
 * Tests for the {@link ValueAxis} class.
 */
public class ValueAxisTests extends TestCase {

    private static final double EPSILON = 0.000000001;

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

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

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        ValueAxis a1 = new NumberAxis("Test");
        ValueAxis a2 = null;
        try {
            a2 = (NumberAxis) a1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(a1 != a2);
        assertTrue(a1.getClass() == a2.getClass());
        assertTrue(a1.equals(a2));
    }

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

        NumberAxis a1 = new NumberAxis("Test");
        NumberAxis a2 = new NumberAxis("Test");
        assertTrue(a1.equals(a2));

        // axis line visible flag...
        a1.setAxisLineVisible(false);
        assertFalse(a1.equals(a2));
        a2.setAxisLineVisible(false);
        assertTrue(a1.equals(a2));

        // positiveArrowVisible;
        a1.setPositiveArrowVisible(true);
        assertFalse(a1.equals(a2));
        a2.setPositiveArrowVisible(true);
        assertTrue(a1.equals(a2));

        // negativeArrowVisible;
        a1.setNegativeArrowVisible(true);
        assertFalse(a1.equals(a2));
        a2.setNegativeArrowVisible(true);
        assertTrue(a1.equals(a2));

        //private Shape upArrow;

        //private Shape downArrow;

        //private Shape leftArrow;

        //private Shape rightArrow;

        // axisLinePaint
        a1.setAxisLinePaint(Color.blue);
        assertFalse(a1.equals(a2));
        a2.setAxisLinePaint(Color.blue);
        assertTrue(a1.equals(a2));

        // axisLineStroke
        Stroke stroke = new BasicStroke(2.0f);
        a1.setAxisLineStroke(stroke);
        assertFalse(a1.equals(a2));
        a2.setAxisLineStroke(stroke);
        assertTrue(a1.equals(a2));

        // inverted
        a1.setInverted(true);
        assertFalse(a1.equals(a2));
        a2.setInverted(true);
        assertTrue(a1.equals(a2));

        // range
        a1.setRange(new Range(50.0, 75.0));
        assertFalse(a1.equals(a2));
        a2.setRange(new Range(50.0, 75.0));
        assertTrue(a1.equals(a2));

        // autoRange
        a1.setAutoRange(true);
        assertFalse(a1.equals(a2));
        a2.setAutoRange(true);
        assertTrue(a1.equals(a2));

        // autoRangeMinimumSize
        a1.setAutoRangeMinimumSize(3.33);
        assertFalse(a1.equals(a2));
        a2.setAutoRangeMinimumSize(3.33);
        assertTrue(a1.equals(a2));

        a1.setDefaultAutoRange(new Range(1.2, 3.4));
        assertFalse(a1.equals(a2));
        a2.setDefaultAutoRange(new Range(1.2, 3.4));
        assertTrue(a1.equals(a2));

        // upperMargin
        a1.setUpperMargin(0.09);
        assertFalse(a1.equals(a2));
        a2.setUpperMargin(0.09);
        assertTrue(a1.equals(a2));

        // lowerMargin
        a1.setLowerMargin(0.09);
        assertFalse(a1.equals(a2));
        a2.setLowerMargin(0.09);
        assertTrue(a1.equals(a2));

        //private double fixedAutoRange;
        a1.setFixedAutoRange(50.0);
        assertFalse(a1.equals(a2));
        a2.setFixedAutoRange(50.0);
        assertTrue(a1.equals(a2));

        //private boolean autoTickUnitSelection;
        a1.setAutoTickUnitSelection(false);
        assertFalse(a1.equals(a2));
        a2.setAutoTickUnitSelection(false);
        assertTrue(a1.equals(a2));

        //private TickUnits standardTickUnits;
        a1.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        assertFalse(a1.equals(a2));
        a2.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        assertTrue(a1.equals(a2));

        // verticalTickLabels
        a1.setVerticalTickLabels(true);
        assertFalse(a1.equals(a2));
        a2.setVerticalTickLabels(true);
        assertTrue(a1.equals(a2));


        //private int autoTickIndex;
        //protected double reservedForTickLabels;
        //protected double reservedForAxisLabel;

    }

    /**
     * Tests the the lower and upper margin settings produce the expected
     * results.
     */
    public void testAxisMargins() {
        XYSeries series = new XYSeries("S1");
        series.add(100.0, 1.1);
        series.add(200.0, 2.2);
        XYSeriesCollection dataset = new XYSeriesCollection(series);
        dataset.setIntervalWidth(0.0);
        JFreeChart chart = ChartFactory.createScatterPlot(
            "Title", "X", "Y", dataset, PlotOrientation.VERTICAL,
            false, false, false
        );
        ValueAxis domainAxis = ((XYPlot) chart.getPlot()).getDomainAxis();
        Range r = domainAxis.getRange();
        assertEquals(110.0, r.getLength(), EPSILON);
        domainAxis.setLowerMargin(0.10);
        domainAxis.setUpperMargin(0.10);
        r = domainAxis.getRange();
        assertEquals(120.0, r.getLength(), EPSILON);
    }

}