Add accuracy moon tests (#14182)
Signed-off-by: lsiepel <leosiepel@gmail.com>
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/**
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* Copyright (c) 2010-2023 Contributors to the openHAB project
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*
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* See the NOTICE file(s) distributed with this work for additional
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* information.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Eclipse Public License 2.0 which is available at
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* http://www.eclipse.org/legal/epl-2.0
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*
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* SPDX-License-Identifier: EPL-2.0
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*/
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package org.openhab.binding.astro.internal.calc;
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import static org.junit.jupiter.api.Assertions.*;
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import java.util.Calendar;
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import java.util.GregorianCalendar;
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import java.util.TimeZone;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import org.openhab.binding.astro.internal.model.Moon;
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import org.openhab.binding.astro.internal.model.ZodiacSign;
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/***
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* Specific unit tests to check if {@link MoonCalc} generates correct data for
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* Amsterdam city on 27 February 2019. In particular the following cases are
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* covered:
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* <ul>
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* <li>checks if generated data are the same (with some accuracy) as produced by
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* haevens-above.com</li>
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* </ul>
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*
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* @author Leo Siepel - Initial contribution
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* @see <a href="https://www.heavens-above.com/Moon.aspx">Heavens Above Moon</a>
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*/
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public class MoonCalcTest {
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private static final TimeZone TIME_ZONE = TimeZone.getTimeZone("Europe/Amsterdam");
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private static final Calendar FEB_27_2019 = MoonCalcTest.newCalendar(2019, Calendar.FEBRUARY, 27, 1, 0, TIME_ZONE);
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private static final double AMSTERDAM_LATITUDE = 52.367607;
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private static final double AMSTERDAM_LONGITUDE = 4.8978293;
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private static final int ACCURACY_IN_MILLIS = 5 * 60 * 1000;
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private static final int ACCURACY_IN_KILOMETRES = 4;
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private static final double ACCURACY_IN_DEGREE = 0.3;
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private MoonCalc moonCalc;
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@BeforeEach
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public void init() {
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moonCalc = new MoonCalc();
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}
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@Test
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public void testGetMoonInfoForOldDate() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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assertNotNull(moon.getApogee());
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assertNotNull(moon.getPerigee());
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assertNotNull(moon.getDistance());
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assertNotNull(moon.getEclipse());
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assertNotNull(moon.getPhase());
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assertNotNull(moon.getPosition());
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assertNotNull(moon.getRise());
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assertNotNull(moon.getSet());
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assertNotNull(moon.getZodiac());
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// for an old date the phase should not be calculated
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assertNull(moon.getPhase().getName());
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}
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@Test
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public void testGetMoonInfoForApogeeAccuracy() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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// expected result from haevens-above.com is 406,391 km @ 04 March 2019 12:27
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assertEquals(406391, moon.getApogee().getDistance().doubleValue(), ACCURACY_IN_KILOMETRES);
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assertEquals(MoonCalcTest.newCalendar(2019, Calendar.MARCH, 4, 12, 27, TIME_ZONE).getTimeInMillis(),
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moon.getApogee().getDate().getTimeInMillis(), ACCURACY_IN_MILLIS);
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}
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@Test
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public void testGetMoonInfoForPerigeeAccuracy() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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// expected result from haevens-above.com is 359,377 km @ 19 February 2019 20:44
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assertEquals(359377, moon.getPerigee().getDistance().doubleValue(), ACCURACY_IN_KILOMETRES);
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assertEquals(MoonCalcTest.newCalendar(2019, Calendar.MARCH, 19, 20, 48, TIME_ZONE).getTimeInMillis(),
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moon.getPerigee().getDate().getTimeInMillis(), ACCURACY_IN_MILLIS);
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}
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@Test
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public void testGetMoonInfoForRiseAccuracy() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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// expected result from haevens-above.com is 03:00
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assertEquals(MoonCalcTest.newCalendar(2019, Calendar.FEBRUARY, 27, 3, 0, TIME_ZONE).getTimeInMillis(),
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moon.getRise().getStart().getTimeInMillis(), ACCURACY_IN_MILLIS);
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}
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@Test
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public void testGetMoonInfoForSetAccuracy() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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// expected result from haevens-above.com is 11:35
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assertEquals(MoonCalcTest.newCalendar(2019, Calendar.FEBRUARY, 27, 11, 35, TIME_ZONE).getTimeInMillis(),
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moon.getSet().getStart().getTimeInMillis(), ACCURACY_IN_MILLIS);
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}
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@Test
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public void testGetMoonInfoForZodiac() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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moonCalc.setPositionalInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE, moon);
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assertEquals(ZodiacSign.SAGITTARIUS, moon.getZodiac().getSign());
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}
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@Test
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public void testGetMoonInfoForMoonPositionAccuracy() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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moonCalc.setPositionalInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE, moon);
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// expected result from haevens-above.com is Azimuth: 100.5, altitude -17
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assertEquals(100.5, moon.getPosition().getAzimuth().doubleValue(), ACCURACY_IN_DEGREE);
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assertEquals(-17, moon.getPosition().getElevation().doubleValue(), ACCURACY_IN_DEGREE);
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}
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@Test
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public void testGetMoonInfoForMoonDistanceAccuracy() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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moonCalc.setPositionalInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE, moon);
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// expected result from haevens-above.com is 392612 km
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assertEquals(392612, moon.getDistance().getDistance().doubleValue(), ACCURACY_IN_KILOMETRES);
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}
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@Test
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public void testGetMoonInfoForMoonPhaseAccuracy() {
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Moon moon = moonCalc.getMoonInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE);
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moonCalc.setPositionalInfo(FEB_27_2019, AMSTERDAM_LATITUDE, AMSTERDAM_LONGITUDE, moon);
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// New moon 06 March 2019 17:04
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// First quarter 14 March 2019 11:27
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// Full moon 21 March 2019 02:43
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// Last quarter 28 March 2019 05:10
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assertEquals(MoonCalcTest.newCalendar(2019, Calendar.MARCH, 06, 17, 04, TIME_ZONE).getTimeInMillis(),
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moon.getPhase().getNew().getTimeInMillis(), ACCURACY_IN_MILLIS);
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assertEquals(MoonCalcTest.newCalendar(2019, Calendar.MARCH, 14, 11, 27, TIME_ZONE).getTimeInMillis(),
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moon.getPhase().getFirstQuarter().getTimeInMillis(), ACCURACY_IN_MILLIS);
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assertEquals(MoonCalcTest.newCalendar(2019, Calendar.MARCH, 21, 02, 43, TIME_ZONE).getTimeInMillis(),
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moon.getPhase().getFull().getTimeInMillis(), ACCURACY_IN_MILLIS);
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assertEquals(MoonCalcTest.newCalendar(2019, Calendar.MARCH, 28, 05, 10, TIME_ZONE).getTimeInMillis(),
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moon.getPhase().getThirdQuarter().getTimeInMillis(), ACCURACY_IN_MILLIS);
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}
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/***
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* Constructs a <code>GregorianCalendar</code> with the given date and time set
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* for the provided time zone.
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*
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* @param year
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* the value used to set the <code>YEAR</code> calendar field in the
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* calendar.
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* @param month
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* the value used to set the <code>MONTH</code> calendar field in the
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* calendar. Month value is 0-based. e.g., 0 for January.
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* @param dayOfMonth
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* the value used to set the <code>DAY_OF_MONTH</code> calendar field
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* in the calendar.
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* @param hourOfDay
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* the value used to set the <code>HOUR_OF_DAY</code> calendar field
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* in the calendar.
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* @param minute
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* the value used to set the <code>MINUTE</code> calendar field in
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* the calendar.
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* @param zone
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* the given time zone.
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* @return
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*/
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private static Calendar newCalendar(int year, int month, int dayOfMonth, int hourOfDay, int minute, TimeZone zone) {
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Calendar result = new GregorianCalendar(year, month, dayOfMonth, hourOfDay, minute);
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result.setTimeZone(zone);
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return result;
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}
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}
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