1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/* GENERATED SOURCE. DO NOT MODIFY. */
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 1996-2010, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
package android.icu.dev.test.calendar;
import java.util.Locale;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
// AstroTest
import android.icu.dev.test.CoreTestFmwk;
import android.icu.impl.CalendarAstronomer;
import android.icu.impl.CalendarAstronomer.Equatorial;
import android.icu.text.DateFormat;
import android.icu.util.Calendar;
import android.icu.util.GregorianCalendar;
import android.icu.util.SimpleTimeZone;
import android.icu.util.TimeZone;
import android.icu.testsharding.MainTestShard;
// TODO: try finding next new moon after 07/28/1984 16:00 GMT
@MainTestShard
@RunWith(JUnit4.class)
public class AstroTest extends CoreTestFmwk {
static final double PI = Math.PI;
@Test
public void TestSolarLongitude() {
GregorianCalendar gc = new GregorianCalendar(new SimpleTimeZone(0, "UTC"));
// year, month, day, hour, minute, longitude (radians), ascension(radians), declination(radians)
final double tests[][] = {
{ 1980, 7, 27, 00, 00, 2.166442986535465, 2.2070499713207730, 0.3355704075759270 },
{ 1988, 7, 27, 00, 00, 2.167484927693959, 2.2081183335606176, 0.3353093444275315 },
};
logln("");
for (int i = 0; i < tests.length; i++) {
gc.clear();
gc.set((int)tests[i][0], (int)tests[i][1]-1, (int)tests[i][2], (int)tests[i][3], (int) tests[i][4]);
CalendarAstronomer astro = new CalendarAstronomer(gc.getTimeInMillis());
double longitude = astro.getSunLongitude();
if (longitude != tests[i][5]) {
if ((float)longitude == (float)tests[i][5]) {
logln("longitude(" + longitude +
") != tests[i][5](" + tests[i][5] +
") in double for test " + i);
} else {
errln("FAIL: longitude(" + longitude +
") != tests[i][5](" + tests[i][5] +
") for test " + i);
}
}
}
}
@Test
public void TestLunarPosition() {
GregorianCalendar gc = new GregorianCalendar(new SimpleTimeZone(0, "UTC"));
// year, month, day, hour, minute, ascension(radians), declination(radians)
final double tests[][] = {
{ 1979, 2, 26, 16, 00, -0.3778379118188744, -0.1399698825594198 },
};
logln("");
for (int i = 0; i < tests.length; i++) {
gc.clear();
gc.set((int)tests[i][0], (int)tests[i][1]-1, (int)tests[i][2], (int)tests[i][3], (int) tests[i][4]);
CalendarAstronomer astro = new CalendarAstronomer(gc.getTimeInMillis());
Equatorial result = astro.getMoonPosition();
if (result.ascension != tests[i][5]) {
if ((float)result.ascension == (float)tests[i][5]) {
logln("result.ascension(" + result.ascension +
") != tests[i][5](" + tests[i][5] +
") in double for test " + i);
} else {
errln("FAIL: result.ascension(" + result.ascension +
") != tests[i][5](" + tests[i][5] +
") for test " + i);
}
}
if (result.declination != tests[i][6]) {
if ((float)result.declination == (float)tests[i][6]) {
logln("result.declination(" + result.declination +
") != tests[i][6](" + tests[i][6] +
") in double for test " + i);
} else {
errln("FAIL: result.declination(" + result.declination +
") != tests[i][6](" + tests[i][6] +
") for test " + i);
}
}
}
}
@Test
public void TestCoordinates() {
CalendarAstronomer astro = new CalendarAstronomer();
Equatorial result = astro.eclipticToEquatorial(139.686111 * PI/ 180.0, 4.875278* PI / 180.0);
logln("result is " + result + "; " + result.toHmsString());
}
@Test
public void TestCoverage() {
GregorianCalendar cal = new GregorianCalendar(1958, Calendar.AUGUST, 15);
CalendarAstronomer myastro = new CalendarAstronomer(cal.getTimeInMillis());
//Latitude: 34 degrees 05' North
//Longitude: 118 degrees 22' West
double laLat = 34 + 5d/60, laLong = 360 - (118 + 22d/60);
double eclLat = laLat * Math.PI / 360;
double eclLong = laLong * Math.PI / 360;
CalendarAstronomer[] astronomers = {
myastro, myastro, myastro // check cache
};
for (int i = 0; i < astronomers.length; ++i) {
CalendarAstronomer astro = astronomers[i];
logln("astro: " + astro);
logln(" time: " + astro.getTime());
logln(" date: " + astro.getDate());
logln(" equ long: " + astro.eclipticToEquatorial(eclLat, eclLong));
}
}
@Test
public void TestBasics() {
// Check that our JD computation is the same as the book's (p. 88)
GregorianCalendar cal3 = new GregorianCalendar(TimeZone.getTimeZone("GMT"), Locale.US);
DateFormat d3 = DateFormat.getDateTimeInstance(cal3, DateFormat.MEDIUM,DateFormat.MEDIUM,Locale.US);
cal3.clear();
cal3.set(Calendar.YEAR, 1980);
cal3.set(Calendar.MONTH, Calendar.JULY);
cal3.set(Calendar.DATE, 27);
CalendarAstronomer astro = new CalendarAstronomer(cal3.getTimeInMillis());
double jd = astro.getJulianDay() - 2447891.5;
double exp = -3444;
if (jd == exp) {
logln(d3.format(cal3.getTime()) + " => " + jd);
} else {
errln("FAIL: " + d3.format(cal3.getTime()) + " => " + jd +
", expected " + exp);
}
// cal3.clear();
// cal3.set(cal3.YEAR, 1990);
// cal3.set(cal3.MONTH, Calendar.JANUARY);
// cal3.set(cal3.DATE, 1);
// cal3.add(cal3.DATE, -1);
// astro.setDate(cal3.getTime());
// astro.foo();
}
@Test
public void TestMoonAge(){
GregorianCalendar gc = new GregorianCalendar(new SimpleTimeZone(0,"GMT"));
// more testcases are around the date 05/20/2012
//ticket#3785 UDate ud0 = 1337557623000.0;
double testcase[][] = {{2012, 5, 20 , 16 , 48, 59},
{2012, 5, 20 , 16 , 47, 34},
{2012, 5, 21, 00, 00, 00},
{2012, 5, 20, 14, 55, 59},
{2012, 5, 21, 7, 40, 40},
{2023, 9, 25, 10,00, 00},
{2008, 7, 7, 15, 00, 33},
{1832, 9, 24, 2, 33, 41 },
{2016, 1, 31, 23, 59, 59},
{2099, 5, 20, 14, 55, 59}
};
// Moon phase angle - Got from http://www.moonsystem.to/checkupe.htm
double angle[] = {356.8493418421329, 356.8386760059673, 0.09625415252237701, 355.9986960782416, 3.5714026601303317, 124.26906744384183, 59.80247650195558, 357.54163205513123, 268.41779281511094, 4.82340276581624};
double precision = PI/32;
for(int i=0; i<testcase.length; i++){
gc.clear();
String testString = "CASE["+i+"]: Year "+(int)testcase[i][0]+" Month "+(int)testcase[i][1]+" Day "+
(int)testcase[i][2]+" Hour "+(int)testcase[i][3]+" Minutes "+(int)testcase[i][4]+
" Seconds "+(int)testcase[i][5];
gc.set((int)testcase[i][0],(int)testcase[i][1]-1,(int)testcase[i][2],(int)testcase[i][3],(int)testcase[i][4], (int)testcase[i][5]);
CalendarAstronomer calastro = new CalendarAstronomer(gc.getTimeInMillis());
double expectedAge = (angle[i]*PI)/180;
double got = calastro.getMoonAge();
logln(testString);
if(!(got>expectedAge-precision && got<expectedAge+precision)){
errln("FAIL: expected " + expectedAge +
" got " + got);
}else{
logln("PASS: expected " + expectedAge +
" got " + got);
}
}
}
}
|
