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1 package jodd.datetime;
2
3 import java.util.Calendar;
4 import java.util.GregorianCalendar;
5 import java.util.Random;
6
7 import junit.framework.TestCase;
8
9 public class TestTimeUtil extends TestCase {
10
11 public void testFromJulian() {
12
13 DateTimeStamp time;
14 time = TimeUtil.fromJulianDate(0.0);
15 assertEquals("-4712-1-1 12:0:0.0", time.toString());
16
17 time = TimeUtil.fromJulianDate(59.0);
18 assertEquals("-4712-2-29 12:0:0.0", time.toString());
19
20 time = TimeUtil.fromJulianDate(366.0);
21 assertEquals("-4711-1-1 12:0:0.0", time.toString());
22
23 time = TimeUtil.fromJulianDate(731.0);
24 assertEquals("-4710-1-1 12:0:0.0", time.toString());
25
26 time = TimeUtil.fromJulianDate(1721058.0);
27 assertEquals("0-1-1 12:0:0.0", time.toString());
28
29 time = TimeUtil.fromJulianDate(1721057.0);
30 assertEquals("-1-12-31 12:0:0.0", time.toString());
31
32 time = TimeUtil.fromJulianDate(1721117.0);
33 assertEquals("0-2-29 12:0:0.0", time.toString());
34
35 time = TimeUtil.fromJulianDate(1721118.0);
36 assertEquals("0-3-1 12:0:0.0", time.toString());
37
38 time = TimeUtil.fromJulianDate(1721423.0);
39 assertEquals("0-12-31 12:0:0.0", time.toString());
40
41 time = TimeUtil.fromJulianDate(1721424.0);
42 assertEquals("1-1-1 12:0:0.0", time.toString());
43
44 time = TimeUtil.fromJulianDate(2440587.5);
45 assertEquals("1970-1-1 0:0:0.0", time.toString());
46
47 time = TimeUtil.fromJulianDate(2451774.726007);
48 assertEquals("2000-8-18 5:25:27.004", time.toString());
49
50 time = TimeUtil.fromJulianDate(2451774.72600701);
51 assertEquals("2000-8-18 5:25:27.005", time.toString());
52
53 time = TimeUtil.fromJulianDate(2451774.72600702);
54 assertEquals("2000-8-18 5:25:27.006", time.toString());
55
56 time = TimeUtil.fromJulianDate(2299160.49998901);
57 assertEquals("1582-10-4 23:59:59.05", time.toString());
58
59 time = TimeUtil.fromJulianDate(2299160.5);
60 assertEquals("1582-10-15 0:0:0.0", time.toString());
61
62 time = TimeUtil.fromJulianDate(2147438064.499989);
63 assertEquals("5874773-8-15 23:59:59.052", time.toString());
64 }
65
66 public void testFix() {
67 DateTimeStamp t = new DateTimeStamp();
68 t.year = 2003;
69 t.month = 7;
70 t.day = 26;
71 t.hour = 0;
72 t.minute = 0;
73 t.second = 2;
74 double jd = TimeUtil.toJulianDate(t).doubleValue();
75 DateTimeStamp t2 = TimeUtil.fromJulianDate(jd);
76 assertFalse(t.toString().equals(t2.toString()));
77
78 JulianDateStamp jds = TimeUtil.toJulianDate(t);
79 t2 = TimeUtil.fromJulianDate(jds);
80 assertEquals(t.toString(), t2.toString());
81 }
82
83 public void testMonteCarlo() {
84 Random r = new Random();
85 for (int i = 0; i < 5000000; i++) {
86 double jd = r.nextFloat() * 3e6;
87 DateTimeStamp t = TimeUtil.fromJulianDate(jd);
88 double jd2 = TimeUtil.toJulianDate(t).doubleValue();
89 assertEquals(jd, jd2, 0.000000001);
90 }
91 }
92
93 public void testDates() {
94 DateTimeStamp t = new DateTimeStamp();
95 GregorianCalendar gc = new GregorianCalendar();
96 for (int y = 1970; y < 2100; y++) {
97 gc.set(y, 00, 01);
98 t.year = y;
99 for (int i = 0; i < 365; i++) {
100 t.month = gc.get(Calendar.MONTH) + 1;
101 t.day = gc.get(Calendar.DAY_OF_MONTH);
102 t.hour = t.minute = 0; t.second = 0.0;
103 double jd = TimeUtil.toJulianDate(t).doubleValue();
104 DateTimeStamp t2 = TimeUtil.fromJulianDate(jd);
105 assertEquals(t.toString(), t2.toString());
106 gc.add(Calendar.DAY_OF_YEAR, 1);
107 }
108 }
109 }
110
111
112 public void testTimes() {
113 DateTimeStamp t = new DateTimeStamp();
114 GregorianCalendar gc = new GregorianCalendar();
115 t.year = gc.get(Calendar.YEAR);
116 gc.set(t.year, gc.get(Calendar.MONTH), gc.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
117 for (int day = 0; day < 1; day++) {
118 t.month = gc.get(Calendar.MONTH) + 1;
119 t.day = gc.get(Calendar.DAY_OF_MONTH);
120 for (int i = 0; i < 86400; i++) {
121 t.hour = gc.get(Calendar.HOUR_OF_DAY);
122 t.minute = gc.get(Calendar.MINUTE);
123 t.second = gc.get(Calendar.SECOND);
124 JulianDateStamp jds = TimeUtil.toJulianDate(t);
125 DateTimeStamp t2 = TimeUtil.fromJulianDate(jds);
126 assertEquals(t.toString(), t2.toString());
127 gc.add(Calendar.SECOND, 1);
128 }
129 gc.add(Calendar.DAY_OF_YEAR, 1);
130 }
131 }
132
133 public void testDayOfYear() {
134
135 int doy = TimeUtil.dayOfYear(2003, 01, 01);
136 assertEquals(1, doy);
137
138 doy = TimeUtil.dayOfYear(2003, 02, 01);
139 assertEquals(32, doy);
140
141 doy = TimeUtil.dayOfYear(2003, 12, 31);
142 assertEquals(365, doy);
143
144 doy = TimeUtil.dayOfYear(2004, 12, 31);
145 assertEquals(366, doy);
146
147 doy = TimeUtil.dayOfYear(2000, 12, 31);
148 assertEquals(366, doy);
149
150 }
151
152 public void testSetAccumulation() {
153 DateTimeStamp gts1 = new DateTimeStamp(2003, 11, 24, 21, 40, 38.173);
154 DateTimeStamp gts2 = new DateTimeStamp(2003, 11, 24, 21, 40, 38.173);
155 assertEquals(0, gts1.compareTo(gts2));
156 assertEquals(0, gts2.compareTo(gts1));
157
158 for (int i = 0; i < 100; i++) {
159 JulianDateStamp jds = TimeUtil.toJulianDate(gts2);
160 gts2 = TimeUtil.fromJulianDate(jds);
161 }
162 assertEquals(0, gts1.compareTo(gts2));
163 assertEquals(0, gts2.compareTo(gts1));
164 }
165
166
167 public void testSetDateAccumulation() {
168 DateTimeStamp gts1 = new DateTimeStamp(2003, 11, 24, 21, 40, 38.173);
169 DateTimeStamp gts2 = new DateTimeStamp(2003, 11, 24, 21, 40, 38.173);
170 assertEquals(0, gts1.compareTo(gts2));
171 assertEquals(0, gts2.compareTo(gts1));
172
173 for (int i = 0; i < 100; i++) {
174 JulianDateStamp jds = TimeUtil.toJulianDate(2003, 11, 24, gts2.hour, gts2.minute, gts2.second);
175 gts2 = TimeUtil.fromJulianDate(jds);
176 }
177 assertEquals(0, gts1.compareTo(gts2));
178 assertEquals(0, gts2.compareTo(gts1));
179 }
180
181
182
183 }
184 |
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