content: /* ========================================================================
   * JCommon : a free general purpose class library for the Java(tm) platform
   * ========================================================================
   *
   * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jcommon/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.]
   *
   * ------------------------
   * ShapeUtilitiesTests.java
   * ------------------------
   * (C) Copyright 2004-2008, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * $Id: ShapeUtilitiesTests.java,v 1.9 2008/06/02 06:58:28 mungady Exp $
   *
   * Changes
   * -------
   * 26-Oct-2004 : Version 1 (DG);
   * 10-Nov-2004 : Extended test for equal shapes to include Ellipse2D (DG);
   * 16-Mar-2005 : Extended test for equal shapes to include Polygon (DG);
   * 26-Sep-2007 : Removed a couple of checks that don't hold on JRE 1.6 and
   *               later (DG);
   * 01-Jun-2008 : Added testEqualGeneralPaths() (DG);
   *
   */
  
  package org.jfree.util.junit;
  
  import java.awt.Polygon;
  import java.awt.Shape;
  import java.awt.geom.Arc2D;
  import java.awt.geom.Ellipse2D;
  import java.awt.geom.GeneralPath;
  import java.awt.geom.Line2D;
  import java.awt.geom.Rectangle2D;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  import org.jfree.util.ShapeUtilities;
  
  /**
   * Tests for the {@link ShapeUtilities} class.
   */
  public class ShapeUtilitiesTests extends TestCase {
  
      /**
       * Returns the tests as a test suite.
       *
       * @return The test suite.
       */
      public static Test suite() {
          return new TestSuite(ShapeUtilitiesTests.class);
      }
  
      /**
       * Constructs a new set of tests.
       *
       * @param name  the name of the tests.
       */
      public ShapeUtilitiesTests(final String name) {
          super(name);
      }
  
      /**
       * Tests the equal() method.
       */
      public void testEqualLine2Ds() {
  
          assertTrue(ShapeUtilities.equal((Line2D) null, (Line2D) null));
          Line2D l1 = new Line2D.Float(1.0f, 2.0f, 3.0f, 4.0f);
          Line2D l2 = new Line2D.Float(1.0f, 2.0f, 3.0f, 4.0f);
          assertTrue(ShapeUtilities.equal(l1, l2));
  
          l1 = new Line2D.Float(4.0f, 3.0f, 2.0f, 1.0f);
          assertFalse(ShapeUtilities.equal(l1, l2));
          l2 = new Line2D.Float(4.0f, 3.0f, 2.0f, 1.0f);
          assertTrue(ShapeUtilities.equal(l1, l2));
  
          l1 = new Line2D.Double(4.0f, 3.0f, 2.0f, 1.0f);
          assertTrue(ShapeUtilities.equal(l1, l2));
  
      }
  
      /**
       * Some checks for the equal(Shape, Shape) method.
       */
      public void testEqualShapes() {
  
          // NULL
          Shape s1 = null;
          Shape s2 = null;
          assertTrue(ShapeUtilities.equal(s1, s2));
  
          // LINE2D
          s1 = new Line2D.Double(1.0, 2.0, 3.0, 4.0);
          assertFalse(ShapeUtilities.equal(s1, s2));
          s2 = new Line2D.Double(1.0, 2.0, 3.0, 4.0);
          assertTrue(ShapeUtilities.equal(s1, s2));
          assertFalse(s1.equals(s2));
  
          // RECTANGLE2D
          s1 = new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0);
          assertFalse(ShapeUtilities.equal(s1, s2));
          s2 = new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0);
          assertTrue(ShapeUtilities.equal(s1, s2));
          assertTrue(s1.equals(s2));  // Rectangle2D overrides equals()
  
          // ELLIPSE2D
          s1 = new Ellipse2D.Double(1.0, 2.0, 3.0, 4.0);
          assertFalse(ShapeUtilities.equal(s1, s2));
          s2 = new Ellipse2D.Double(1.0, 2.0, 3.0, 4.0);
          assertTrue(ShapeUtilities.equal(s1, s2));
  
          // ARC2D
          s1 = new Arc2D.Double(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, Arc2D.PIE);
          assertFalse(ShapeUtilities.equal(s1, s2));
          s2 = new Arc2D.Double(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, Arc2D.PIE);
          assertTrue(ShapeUtilities.equal(s1, s2));
  
          // POLYGON
          Polygon p1 = new Polygon(new int[] {0, 1, 0}, new int[] {1, 0, 1}, 3);
          Polygon p2 = new Polygon(new int[] {1, 1, 0}, new int[] {1, 0, 1}, 3);
          s1 = p1;
          s2 = p2;
          assertFalse(ShapeUtilities.equal(s1, s2));
          p2 = new Polygon(new int[] {0, 1, 0}, new int[] {1, 0, 1}, 3);
          s2 = p2;
          assertTrue(ShapeUtilities.equal(s1, s2));
  
          // GENERALPATH
          GeneralPath g1 = new GeneralPath();
          g1.moveTo(1.0f, 2.0f);
          g1.lineTo(3.0f, 4.0f);
          g1.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
          g1.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
          g1.closePath();
          s1 = g1;
          assertFalse(ShapeUtilities.equal(s1, s2));
          GeneralPath g2 = new GeneralPath();
          g2.moveTo(1.0f, 2.0f);
          g2.lineTo(3.0f, 4.0f);
          g2.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
          g2.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
          g2.closePath();
          s2 = g2;
          assertTrue(ShapeUtilities.equal(s1, s2));
          assertFalse(s1.equals(s2));
  
      }
  
      /**
       * Some checks for the intersects() method,
       */
      public void testIntersects() {
          final Rectangle2D r1 = new Rectangle2D.Float(0, 0, 100, 100);
          final Rectangle2D r2 = new Rectangle2D.Float(0, 0, 100, 100);
          assertTrue(ShapeUtilities.intersects(r1, r2));
  
          r1.setRect(100, 0, 100, 0);
          assertTrue(ShapeUtilities.intersects(r1, r2));
          assertTrue(ShapeUtilities.intersects(r2, r1));
  
          r1.setRect(0, 0, 0, 0);
          assertTrue(ShapeUtilities.intersects(r1, r2));
          assertTrue(ShapeUtilities.intersects(r2, r1));
  
          r1.setRect(50, 50, 10, 0);
          assertTrue(ShapeUtilities.intersects(r1, r2));
          assertTrue(ShapeUtilities.intersects(r2, r1));
      }
  
      /**
       * Some checks for the equal(GeneralPath, GeneralPath) method.
       */
      public void testEqualGeneralPaths() {
          GeneralPath g1 = new GeneralPath();
          g1.moveTo(1.0f, 2.0f);
          g1.lineTo(3.0f, 4.0f);
          g1.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
          g1.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
          g1.closePath();
          GeneralPath g2 = new GeneralPath();
          g2.moveTo(1.0f, 2.0f);
          g2.lineTo(3.0f, 4.0f);
          g2.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
          g2.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
          g2.closePath();
          assertTrue(ShapeUtilities.equal(g1, g2));
  
          g2 = new GeneralPath();
          g2.moveTo(11.0f, 22.0f);
          g2.lineTo(3.0f, 4.0f);
          g2.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
          g2.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
          g2.closePath();
          assertFalse(ShapeUtilities.equal(g1, g2));
  
          g2 = new GeneralPath();
          g2.moveTo(1.0f, 2.0f);
          g2.lineTo(33.0f, 44.0f);
          g2.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
          g2.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
          g2.closePath();
          assertFalse(ShapeUtilities.equal(g1, g2));
  
          g2 = new GeneralPath();
          g2.moveTo(1.0f, 2.0f);
          g2.lineTo(3.0f, 4.0f);
          g2.curveTo(55.0f, 66.0f, 77.0f, 88.0f, 99.0f, 100.0f);
          g2.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
          g2.closePath();
          assertFalse(ShapeUtilities.equal(g1, g2));
  
          g2 = new GeneralPath();
          g2.moveTo(1.0f, 2.0f);
          g2.lineTo(3.0f, 4.0f);
          g2.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
          g2.quadTo(11.0f, 22.0f, 33.0f, 44.0f);
          g2.closePath();
          assertFalse(ShapeUtilities.equal(g1, g2));
  
          g2 = new GeneralPath();
          g2.moveTo(1.0f, 2.0f);
          g2.lineTo(3.0f, 4.0f);
          g2.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
          g2.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
          g2.lineTo(3.0f, 4.0f);
          g2.closePath();
          assertFalse(ShapeUtilities.equal(g1, g2));
      }
  
  }
  