1 /***
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions are
4 * met :
5 *
6 * . Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 *
9 * . Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * . The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $Id: HorizontalTorusTest.java,v 1.6 2005/09/09 22:12:03 mat007 Exp $
29 */
30
31 package jtge.util.grid.torus;
32
33 import jtge.util.grid.Coordinate;
34 import junit.framework.TestCase;
35
36 /***
37 * @author Jean-Laurent
38 * @version $Revision: 1.6 $ $Date: 2005/09/09 22:12:03 $
39 */
40 public class HorizontalTorusTest extends TestCase
41 {
42 /***
43 * Tested object.
44 */
45 private HorizontalTorus torus;
46
47 protected final void setUp()
48 {
49 torus = new HorizontalTorus( 10 );
50 }
51
52 public void testWithinRangeCoordinateTransformationIsInvariant()
53 {
54 final Coordinate coordinate = new Coordinate( 5, 5 );
55 assertEquals( coordinate, torus.transform( coordinate ) );
56 }
57
58 public void testWithinEdgeCoordinatesTransformationIsInvariant()
59 {
60 final Coordinate lower = new Coordinate( 0, 0 );
61 assertEquals( lower, torus.transform( lower ) );
62 final Coordinate higher = new Coordinate( 9, 9 );
63 assertEquals( higher, torus.transform( higher ) );
64 }
65
66 public void testWithinNegativeCoordinateTransformationMovesItIntoRange()
67 {
68 final Coordinate negative = new Coordinate( -1, -1 );
69 assertEquals( new Coordinate( 9, -1 ), torus.transform( negative ) );
70 }
71
72 public void testWithinOutOfBoundsCoordinateTransformationMovesItIntoRange()
73 {
74 final Coordinate outOfBounds = new Coordinate( 10, 10 );
75 assertEquals( new Coordinate( 0, 10 ), torus.transform( outOfBounds ) );
76 }
77 }