ScoreFrameLayoutTest.java

package com.xenoage.zong.musiclayout;

import com.xenoage.utils.math.geom.Point2f;
import com.xenoage.utils.math.geom.Rectangle2f;
import com.xenoage.zong.musiclayout.stampings.Stamping;
import com.xenoage.zong.musiclayout.stampings.Stamping.Level;
import com.xenoage.zong.musiclayout.stampings.StampingMock;
import org.junit.Test;

import java.util.ArrayList;

import static com.xenoage.utils.collections.CollectionUtils.alist;
import static org.junit.Assert.*;

/**
 * Test cases for a ScoreFrameLayout.
 *
 * @author Andreas Wenger
 */
public class ScoreFrameLayoutTest {

	@Test public void getLayoutElementAt() {

		/* 0    5   10   15    20    | 0
		 *                             
		 *       ***********           2
		 *  +----*   [0]   *     
		 *  |    *         *~~~~~~~    4
		 *  |[1] ***********      |
		 *  +--------+       [2]  |    6
		 *     |                  |
		 *     ~~~~~~~~~~~~~~~~~~~~    8
		 */
		Stamping[] stampings = new Stamping[3];

		StampingMock s1 = new StampingMock(Level.Music, new Rectangle2f(6, 2, 10, 3));
		stampings[0] = s1;

		StampingMock s2 = new StampingMock(Level.Staff, new Rectangle2f(1, 3, 9, 3));
		stampings[1] = s2;

		StampingMock s3 = new StampingMock(Level.EmptySpace, new Rectangle2f(4, 4, 19, 4));
		stampings[2] = s3;

		ScoreFrameLayout layout = new ScoreFrameLayout(null, new ArrayList<>(),
			alist(stampings), new ArrayList<>());

		//no hit (but empty space)
		assertTrue(isNot(layout.getStampingAt(new Point2f(0, 0)), s1, s2, s3));
		assertTrue(isNot(layout.getStampingAt(new Point2f(3, 7)), s1, s2, s3));
		assertTrue(isNot(layout.getStampingAt(new Point2f(17, 3)), s1, s2, s3));

		//single hit
		assertEquals(s1, layout.getStampingAt(new Point2f(10, 2)));
		assertEquals(s2, layout.getStampingAt(new Point2f(3, 5)));
		assertEquals(s3, layout.getStampingAt(new Point2f(22, 8)));

		//intersection hit
		assertEquals(s1, layout.getStampingAt(new Point2f(15, 4)));
		assertEquals(s2, layout.getStampingAt(new Point2f(5, 5)));
		assertEquals(s1, layout.getStampingAt(new Point2f(8, 4)));

	}

	private boolean isNot(Object object, Object this1, Object this2, Object this3) {
		return (object != this1) && (object != this2) && (object != this3);
	}

}