/*
* Computoser is a music-composition algorithm and a website to present the results
* Copyright (C) 2012-2014 Bozhidar Bozhanov
*
* Computoser is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Computoser 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Computoser. If not, see <http://www.gnu.org/licenses/>.
*/
package com.music;
import java.util.ArrayList;
import java.util.List;
import jm.JMC;
import jm.constants.Pitches;
import jm.constants.RhythmValues;
import jm.music.data.Note;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import com.music.MainPartGenerator.MainPartContext;
import com.music.model.Scale;
public class LengthTest {
MainPartGenerator generator = new MainPartGenerator();
MainPartContext lCtx = new MainPartContext();
@Before
public void init() {
lCtx.setScoreContext(new ScoreContext());
lCtx.setCurrentScale(Scale.MAJOR);
}
@Test
public void lengthToNextDownBeatSimpleMetreTest() {
lCtx.getScoreContext().setMetre(new int[] {2, 4});
lCtx.setNormalizedMeasureSize(MetreConfigurer.getNormalizedMeasureSize(lCtx.getScoreContext().getMetre()));
lCtx.setCurrentMeasureSize(0);
assertProperLength(2, 2);
lCtx.setCurrentMeasureSize(0);
assertProperLength(2, 3);
lCtx.setCurrentMeasureSize(0.5);
assertProperLength(1.5, 2);
lCtx.setCurrentMeasureSize(0.5);
assertProperLength(1, 1);
lCtx.setCurrentMeasureSize(0.5);
assertProperLength(1.5, 1.5);
}
@Test
public void lengthToNextDownBeatFourQuartersTest() {
lCtx.getScoreContext().setMetre(new int[] {4, 4});
lCtx.setNormalizedMeasureSize(MetreConfigurer.getNormalizedMeasureSize(lCtx.getScoreContext().getMetre()));
lCtx.setCurrentMeasureSize(0);
assertProperLength(2, 3);
lCtx.setCurrentMeasureSize(0);
assertProperLength(1.5, 1.5);
lCtx.setCurrentMeasureSize(1.5);
assertProperLength(0.5, 3);
lCtx.setCurrentMeasureSize(1.5);
assertProperLength(0.25, 0.25);
lCtx.setCurrentMeasureSize(2);
assertProperLength(2, 2.5);
lCtx.setCurrentMeasureSize(2.5);
assertProperLength(1.5, 1.75);
lCtx.setCurrentMeasureSize(2.5);
assertProperLength(1, 1);
}
@Test
public void lengthToNextDownBeatEightSixteenthsTest() {
lCtx.getScoreContext().setMetre(new int[] {8, 16});
lCtx.setNormalizedMeasureSize(MetreConfigurer.getNormalizedMeasureSize(lCtx.getScoreContext().getMetre()));
lCtx.setCurrentMeasureSize(0);
assertProperLength(2 * JMC.SIXTEENTH_NOTE, 2 * JMC.SIXTEENTH_NOTE);
lCtx.setCurrentMeasureSize(0);
assertProperLength(4 * JMC.SIXTEENTH_NOTE, 5 * JMC.SIXTEENTH_NOTE);
lCtx.setCurrentMeasureSize(5 * JMC.SIXTEENTH_NOTE);
assertProperLength(3 * JMC.SIXTEENTH_NOTE, 5 * JMC.SIXTEENTH_NOTE);
lCtx.setCurrentMeasureSize(5 * JMC.SIXTEENTH_NOTE);
assertProperLength(JMC.EIGHTH_NOTE, JMC.EIGHTH_NOTE);
}
@Test
public void lengthToNextDownBeatSixEightsTest() {
lCtx.getScoreContext().setMetre(new int[] {6, 8});
lCtx.setNormalizedMeasureSize(MetreConfigurer.getNormalizedMeasureSize(lCtx.getScoreContext().getMetre()));
lCtx.setCurrentMeasureSize(0);
assertProperLength(2 * JMC.EIGHTH_NOTE, 3 * JMC.EIGHTH_NOTE);
lCtx.setCurrentMeasureSize(0);
assertProperLength(JMC.EIGHTH_NOTE, JMC.EIGHTH_NOTE);
lCtx.setCurrentMeasureSize(1 * JMC.EIGHTH_NOTE);
assertProperLength(JMC.EIGHTH_NOTE, 2 * JMC.EIGHTH_NOTE);
lCtx.setCurrentMeasureSize(3 * JMC.EIGHTH_NOTE);
assertProperLength(JMC.EIGHTH_NOTE, 2 * JMC.EIGHTH_NOTE);
lCtx.setCurrentMeasureSize(5 * JMC.EIGHTH_NOTE + JMC.SIXTEENTH_NOTE);
assertProperLength(JMC.SIXTEENTH_NOTE, 2 * JMC.EIGHTH_NOTE);
}
@Test
public void lengthToNextDownBeatSevenEightsTest() {
lCtx.getScoreContext().setMetre(new int[] {7, 8});
lCtx.setNormalizedMeasureSize(MetreConfigurer.getNormalizedMeasureSize(lCtx.getScoreContext().getMetre()));
lCtx.setCurrentMeasureSize(0);
assertProperLength(2 * JMC.EIGHTH_NOTE, 3 * JMC.EIGHTH_NOTE);
lCtx.setCurrentMeasureSize(1 * JMC.EIGHTH_NOTE);
assertProperLength(JMC.EIGHTH_NOTE, 2 * JMC.EIGHTH_NOTE);
lCtx.setCurrentMeasureSize(3 * JMC.EIGHTH_NOTE);
assertProperLength(JMC.EIGHTH_NOTE, 2 * JMC.EIGHTH_NOTE);
lCtx.setCurrentMeasureSize(5 * JMC.EIGHTH_NOTE);
assertProperLength(2 * JMC.EIGHTH_NOTE, 2 * JMC.QUARTER_NOTE);
}
@Test
public void retrogradeTest() {
MainPartGenerator gen = new MainPartGenerator();
List<Note> list = new ArrayList<>();
list.add(new Note(Pitches.C4, RhythmValues.EIGHTH_NOTE));
list.add(new Note(Pitches.C5, RhythmValues.QUARTER_NOTE));
list.add(new Note(Pitches.C6, RhythmValues.HALF_NOTE));
gen.retrograde(list);
Assert.assertEquals(RhythmValues.EIGHTH_NOTE, list.get(0).getRhythmValue(), 0);
Assert.assertEquals(RhythmValues.QUARTER_NOTE, list.get(1).getRhythmValue(), 0);
Assert.assertEquals(RhythmValues.HALF_NOTE, list.get(2).getRhythmValue(), 0);
Assert.assertEquals(Pitches.C6, list.get(0).getPitch());
Assert.assertEquals(Pitches.C5, list.get(1).getPitch());
Assert.assertEquals(Pitches.C4, list.get(2).getPitch());
}
private void assertProperLength(double expected, double desired) {
Assert.assertEquals(expected, generator.getProperLengthAndUpdateContext(lCtx, desired), 0);
}
}