www.pudn.com > jfreechart-0.9.12.zip > DateAxisTests.java
/* ======================================
* JFreeChart : a free Java chart library
* ======================================
*
* Project Info: http://www.jfree.org/jfreechart/index.html
* Project Lead: David Gilbert (david.gilbert@object-refinery.com);
*
* (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
*
* 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., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* ------------------
* DateAxisTests.java
* ------------------
* (C) Copyright 2003 by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: DateAxisTests.java,v 1.10 2003/08/15 11:49:43 mungady Exp $
*
* Changes
* -------
* 22-Apr-2003 : Version 1 (DG);
*
*/
package org.jfree.chart.axis.junit;
import java.awt.geom.Rectangle2D;
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 java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.DateTickMarkPosition;
import org.jfree.chart.axis.DateTickUnit;
import org.jfree.chart.axis.SegmentedTimeline;
import org.jfree.data.DateRange;
import org.jfree.ui.RectangleEdge;
/**
* Tests for the {@link DateAxis} class.
*
* @author David Gilbert
*/
public class DateAxisTests extends TestCase {
/**
* Returns the tests as a test suite.
*
* @return the test suite.
*/
public static Test suite() {
return new TestSuite(DateAxisTests.class);
}
/**
* Constructs a new set of tests.
*
* @param name the name of the tests.
*/
public DateAxisTests(String name) {
super(name);
}
/**
* Confirm that the equals method can distinguish all the required fields.
*/
public void testEquals() {
DateAxis a1 = new DateAxis("Test");
DateAxis a2 = new DateAxis("Test");
boolean b = a1.equals(a2);
assertTrue(a1.equals(a2));
// tickUnit
a1.setTickUnit(new DateTickUnit(DateTickUnit.DAY, 7));
assertFalse(a1.equals(a2));
a2.setTickUnit(new DateTickUnit(DateTickUnit.DAY, 7));
assertTrue(a1.equals(a2));
// dateFormatOverride
a1.setDateFormatOverride(new SimpleDateFormat("yyyy"));
assertFalse(a1.equals(a2));
a2.setDateFormatOverride(new SimpleDateFormat("yyyy"));
assertTrue(a1.equals(a2));
// tickMarkPosition
a1.setTickMarkPosition(DateTickMarkPosition.END);
assertFalse(a1.equals(a2));
a2.setTickMarkPosition(DateTickMarkPosition.END);
assertTrue(a1.equals(a2));
// timeline
a1.setTimeline(SegmentedTimeline.newMondayThroughFridayTimeline());
assertFalse(a1.equals(a2));
a2.setTimeline(SegmentedTimeline.newMondayThroughFridayTimeline());
assertTrue(a1.equals(a2));
}
/**
* Confirm that cloning works.
*/
public void testCloning() {
DateAxis a1 = new DateAxis("Test");
DateAxis a2 = null;
try {
a2 = (DateAxis) a1.clone();
}
catch (CloneNotSupportedException e) {
System.err.println("DateAxisTests.testCloning: failed to clone.");
}
assertTrue(a1 != a2);
assertTrue(a1.getClass() == a2.getClass());
assertTrue(a1.equals(a2));
}
/**
* Test that the setRange(...) method works.
*/
public void testSetRange() {
DateAxis axis = new DateAxis("Test Axis");
Calendar calendar = Calendar.getInstance();
calendar.set(1999, Calendar.JANUARY, 3);
Date d1 = calendar.getTime();
calendar.set(1999, Calendar.JANUARY, 31);
Date d2 = calendar.getTime();
axis.setRange(d1, d2);
DateRange range = (DateRange) axis.getRange();
assertEquals(d1, range.getLowerDate());
assertEquals(d2, range.getUpperDate());
}
/**
* Test that the setMaximumDate(...) method works.
*/
public void testSetMaximumDate() {
DateAxis axis = new DateAxis("Test Axis");
Date date = new Date();
axis.setMaximumDate(date);
assertEquals(date, axis.getMaximumDate());
}
/**
* Test that the setMinimumDate(...) method works.
*/
public void testSetMinimumDate() {
DateAxis axis = new DateAxis("Test Axis");
Date d1 = new Date();
Date d2 = new Date(d1.getTime() + 1);
axis.setMaximumDate(d2);
axis.setMinimumDate(d1);
assertEquals(d1, axis.getMinimumDate());
}
/**
* Tests two doubles for 'near enough' equality.
*
* @param d1 number 1.
* @param d2 number 2.
* @param tolerance maximum tolerance.
*
* @return A boolean.
*/
private boolean same(double d1, double d2, double tolerance) {
return (Math.abs(d1 - d2) < tolerance);
}
/**
* Test the translation of Java2D values to data values.
*/
public void testTranslateJava2DToValue() {
DateAxis axis = new DateAxis();
axis.setRange(50.0, 100.0);
Rectangle2D dataArea = new Rectangle2D.Double(10.0, 50.0, 400.0, 300.0);
double y1 = axis.translateJava2DtoValue(75.0f, dataArea, RectangleEdge.LEFT);
assertTrue(same(y1, 95.8333333, 1.0));
double y2 = axis.translateJava2DtoValue(75.0f, dataArea, RectangleEdge.RIGHT);
assertTrue(same(y2, 95.8333333, 1.0));
double x1 = axis.translateJava2DtoValue(75.0f, dataArea, RectangleEdge.TOP);
assertTrue(same(x1, 58.125, 1.0));
double x2 = axis.translateJava2DtoValue(75.0f, dataArea, RectangleEdge.BOTTOM);
assertTrue(same(x2, 58.125, 1.0));
axis.setInverted(true);
double y3 = axis.translateJava2DtoValue(75.0f, dataArea, RectangleEdge.LEFT);
assertTrue(same(y3, 54.1666667, 1.0));
double y4 = axis.translateJava2DtoValue(75.0f, dataArea, RectangleEdge.RIGHT);
assertTrue(same(y4, 54.1666667, 1.0));
double x3 = axis.translateJava2DtoValue(75.0f, dataArea, RectangleEdge.TOP);
assertTrue(same(x3, 91.875, 1.0));
double x4 = axis.translateJava2DtoValue(75.0f, dataArea, RectangleEdge.BOTTOM);
assertTrue(same(x4, 91.875, 1.0));
}
/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
DateAxis a1 = new DateAxis("Test Axis");
DateAxis 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 = (DateAxis) in.readObject();
in.close();
}
catch (Exception e) {
System.out.println(e.toString());
}
boolean b = a1.equals(a2);
assertTrue(b);
}
}