packalg/PackingAlgorithmTest.java at master · Arwid/packalg · GitHub

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packagepackalg;
/**
 * PackAlg
 * By Arwid Bancewicz, October 19, 2009
 */

// Imports
importjava.util.ArrayList;
importjava.util.List;
importjava.util.Random;
importjunit.framework.Assert;
importjunit.framework.TestCase;

/**
 * PackingAlgorithmTest.java - Unit tests for classes PackingAlgorithm.
 *
 * @author Arwid Bancewicz
 * @version 1.2, (09/19/09)
 * @see TestCase
 * @see PackingAlgorithm
 * @see Box
 */
publicclassPackingAlgorithmTestextendsTestCase {

privatePackingAlgorithmioAlg;
privateShapeioContainer;
privateRandomioGenerator;

@Override
protectedvoidsetUp() {
ioAlg = newPackingAlgorithm();
ioContainer = newBox(3, 4, 5);
ioGenerator = newRandom();
	}

/**
 * Basic pack test.
 * @see PackingAlgorithm#pack(Shape, List)
 */
publicvoidtestPack() {
List<Shape> loShapes = newArrayList<Shape>();
loShapes.add(newBox(1, 3, 1));
loShapes.add(newBox(3, 1, 1));
loShapes.add(newBox(2, 2, 4));
loShapes.add(newBox(3, 2, 5));
loShapes.add(newBox(1, 1, 1));
Assert.assertTrue(ioAlg.pack(ioContainer, loShapes) > 0);
Assert.assertEquals(0, loShapes.size()); // 0 left unpacked
	}

/**
 * Fully pack 1 container test.
 * @see PackingAlgorithm#pack(Shape, List)
 */
publicvoidtestPackFull() {
List<Shape> loShapes = newArrayList<Shape>();
loShapes.add(newBox(3, 4, 2));
loShapes.add(newBox(3, 2, 3));
loShapes.add(newBox(3, 2, 3));
Assert.assertTrue(ioAlg.pack(ioContainer, loShapes) == 1);
Assert.assertEquals(0, loShapes.size()); // 0 left unpacked
	}

/**
 * Advanced algorithm test (Randomly generated boxes)
 */
publicvoidtestPackAdvanced() {
intliContainerWidth = 10;
intliContainerLength = 10;
intliContainerHeight = 10;
BoxloContainer = newBox(liContainerWidth, liContainerLength, liContainerHeight);
List<Shape> loShapes = newArrayList<Shape>();
intliNumBoxes = 20000;
while (--liNumBoxes >= 0) {
loShapes.add(newBox(
1 + (int) (Math.round(ioGenerator.nextDouble() * (liContainerWidth - 1))),
1 + (int) (Math.round(ioGenerator.nextDouble() * (liContainerLength - 1))),
1 + (int) (Math.round(ioGenerator.nextDouble() * (liContainerHeight - 1)))
 ));
 }
Assert.assertTrue(ioAlg.pack(loContainer, loShapes) > 0);
Assert.assertEquals(0, loShapes.size()); // 0 left unpacked
	}
}