1 /*
2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * This file is available under and governed by the GNU General Public
26 * License version 2 only, as published by the Free Software Foundation.
27 * However, the following notice accompanied the original version of this
28 * file:
29 *
30 * Copyright (c) 2008-2012, Stephen Colebourne & Michael Nascimento Santos
31 *
32 * All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions are met:
36 *
37 * * Redistributions of source code must retain the above copyright notice,
38 * this list of conditions and the following disclaimer.
39 *
40 * * Redistributions in binary form must reproduce the above copyright notice,
41 * this list of conditions and the following disclaimer in the documentation
42 * and/or other materials provided with the distribution.
43 *
44 * * Neither the name of JSR-310 nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
49 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
50 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
51 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
52 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
53 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
54 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
55 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
56 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
57 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
58 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
59 */
60 package test.java.time.temporal;
61
62 import java.time.DateTimeException;
63 import java.time.Instant;
64 import java.time.LocalDate;
65 import java.time.LocalTime;
66 import java.time.Month;
67 import java.time.ZoneOffset;
68
69 import java.time.temporal.OffsetDateTime;
70 import java.time.temporal.Year;
71
72 import static org.testng.Assert.assertEquals;
73
74 import org.testng.annotations.Test;
75
76 /**
77 * Test OffsetDate creation.
78 */
79 @Test
80 public class TestOffsetDateTime_instants {
81
82 private static final ZoneOffset OFFSET_PONE = ZoneOffset.ofHours(1);
83 private static final ZoneOffset OFFSET_MAX = ZoneOffset.ofHours(18);
84 private static final ZoneOffset OFFSET_MIN = ZoneOffset.ofHours(-18);
85
86 //-----------------------------------------------------------------------
87 @Test(expectedExceptions=NullPointerException.class)
88 public void factory_ofInstant_nullInstant() {
89 OffsetDateTime.ofInstant((Instant) null, OFFSET_PONE);
90 }
91
92 @Test(expectedExceptions=NullPointerException.class)
93 public void factory_ofInstant_nullOffset() {
94 Instant instant = Instant.ofEpochSecond(0L);
95 OffsetDateTime.ofInstant(instant, (ZoneOffset) null);
96 }
97
98 public void factory_ofInstant_allSecsInDay() {
99 for (int i = 0; i < (24 * 60 * 60); i++) {
100 Instant instant = Instant.ofEpochSecond(i);
101 OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_PONE);
102 assertEquals(test.getYear(), 1970);
103 assertEquals(test.getMonth(), Month.JANUARY);
104 assertEquals(test.getDayOfMonth(), 1 + (i >= 23 * 60 * 60 ? 1 : 0));
105 assertEquals(test.getHour(), ((i / (60 * 60)) + 1) % 24);
106 assertEquals(test.getMinute(), (i / 60) % 60);
107 assertEquals(test.getSecond(), i % 60);
108 }
109 }
110
111 public void factory_ofInstant_allDaysInCycle() {
112 // sanity check using different algorithm
113 OffsetDateTime expected = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
114 for (long i = 0; i < 146097; i++) {
115 Instant instant = Instant.ofEpochSecond(i * 24L * 60L * 60L);
116 OffsetDateTime test = OffsetDateTime.ofInstant(instant, ZoneOffset.UTC);
117 assertEquals(test, expected);
118 expected = expected.plusDays(1);
119 }
120 }
121
122 public void factory_ofInstant_history() {
123 doTest_factory_ofInstant_all(-2820, 2820);
124 }
125
126 //-----------------------------------------------------------------------
127 public void factory_ofInstant_minYear() {
128 doTest_factory_ofInstant_all(Year.MIN_VALUE, Year.MIN_VALUE + 420);
129 }
130
131 @Test(expectedExceptions=DateTimeException.class)
132 public void factory_ofInstant_tooLow() {
133 long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
134 int year = Year.MIN_VALUE - 1;
135 long days = (year * 365L + (year / 4 - year / 100 + year / 400)) - days_0000_to_1970;
136 Instant instant = Instant.ofEpochSecond(days * 24L * 60L * 60L);
137 OffsetDateTime.ofInstant(instant, ZoneOffset.UTC);
138 }
139
140 public void factory_ofInstant_maxYear() {
141 doTest_factory_ofInstant_all(Year.MAX_VALUE - 420, Year.MAX_VALUE);
142 }
143
144 @Test(expectedExceptions=DateTimeException.class)
145 public void factory_ofInstant_tooBig() {
146 long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
147 long year = Year.MAX_VALUE + 1L;
148 long days = (year * 365L + (year / 4 - year / 100 + year / 400)) - days_0000_to_1970;
149 Instant instant = Instant.ofEpochSecond(days * 24L * 60L * 60L);
150 OffsetDateTime.ofInstant(instant, ZoneOffset.UTC);
151 }
152
153 //-----------------------------------------------------------------------
154 public void factory_ofInstant_minWithMinOffset() {
155 long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
156 int year = Year.MIN_VALUE;
157 long days = (year * 365L + (year / 4 - year / 100 + year / 400)) - days_0000_to_1970;
158 Instant instant = Instant.ofEpochSecond(days * 24L * 60L * 60L - OFFSET_MIN.getTotalSeconds());
159 OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_MIN);
160 assertEquals(test.getYear(), Year.MIN_VALUE);
161 assertEquals(test.getMonth().getValue(), 1);
162 assertEquals(test.getDayOfMonth(), 1);
163 assertEquals(test.getOffset(), OFFSET_MIN);
164 assertEquals(test.getHour(), 0);
165 assertEquals(test.getMinute(), 0);
166 assertEquals(test.getSecond(), 0);
167 assertEquals(test.getNano(), 0);
168 }
169
170 public void factory_ofInstant_minWithMaxOffset() {
171 long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
172 int year = Year.MIN_VALUE;
173 long days = (year * 365L + (year / 4 - year / 100 + year / 400)) - days_0000_to_1970;
174 Instant instant = Instant.ofEpochSecond(days * 24L * 60L * 60L - OFFSET_MAX.getTotalSeconds());
175 OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_MAX);
176 assertEquals(test.getYear(), Year.MIN_VALUE);
177 assertEquals(test.getMonth().getValue(), 1);
178 assertEquals(test.getDayOfMonth(), 1);
179 assertEquals(test.getOffset(), OFFSET_MAX);
180 assertEquals(test.getHour(), 0);
181 assertEquals(test.getMinute(), 0);
182 assertEquals(test.getSecond(), 0);
183 assertEquals(test.getNano(), 0);
184 }
185
186 public void factory_ofInstant_maxWithMinOffset() {
187 long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
188 int year = Year.MAX_VALUE;
189 long days = (year * 365L + (year / 4 - year / 100 + year / 400)) + 365 - days_0000_to_1970;
190 Instant instant = Instant.ofEpochSecond((days + 1) * 24L * 60L * 60L - 1 - OFFSET_MIN.getTotalSeconds());
191 OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_MIN);
192 assertEquals(test.getYear(), Year.MAX_VALUE);
193 assertEquals(test.getMonth().getValue(), 12);
194 assertEquals(test.getDayOfMonth(), 31);
195 assertEquals(test.getOffset(), OFFSET_MIN);
196 assertEquals(test.getHour(), 23);
197 assertEquals(test.getMinute(), 59);
198 assertEquals(test.getSecond(), 59);
199 assertEquals(test.getNano(), 0);
200 }
201
202 public void factory_ofInstant_maxWithMaxOffset() {
203 long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
204 int year = Year.MAX_VALUE;
205 long days = (year * 365L + (year / 4 - year / 100 + year / 400)) + 365 - days_0000_to_1970;
206 Instant instant = Instant.ofEpochSecond((days + 1) * 24L * 60L * 60L - 1 - OFFSET_MAX.getTotalSeconds());
207 OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_MAX);
208 assertEquals(test.getYear(), Year.MAX_VALUE);
209 assertEquals(test.getMonth().getValue(), 12);
210 assertEquals(test.getDayOfMonth(), 31);
211 assertEquals(test.getOffset(), OFFSET_MAX);
212 assertEquals(test.getHour(), 23);
213 assertEquals(test.getMinute(), 59);
214 assertEquals(test.getSecond(), 59);
215 assertEquals(test.getNano(), 0);
216 }
217
218 //-----------------------------------------------------------------------
219 @Test(expectedExceptions=DateTimeException.class)
220 public void factory_ofInstant_maxInstantWithMaxOffset() {
221 Instant instant = Instant.ofEpochSecond(Long.MAX_VALUE);
222 OffsetDateTime.ofInstant(instant, OFFSET_MAX);
223 }
224
225 @Test(expectedExceptions=DateTimeException.class)
226 public void factory_ofInstant_maxInstantWithMinOffset() {
227 Instant instant = Instant.ofEpochSecond(Long.MAX_VALUE);
228 OffsetDateTime.ofInstant(instant, OFFSET_MIN);
229 }
230
231 //-----------------------------------------------------------------------
232 private void doTest_factory_ofInstant_all(long minYear, long maxYear) {
233 long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
234 int minOffset = (minYear <= 0 ? 0 : 3);
235 int maxOffset = (maxYear <= 0 ? 0 : 3);
236 long minDays = (minYear * 365L + ((minYear + minOffset) / 4L - (minYear + minOffset) / 100L + (minYear + minOffset) / 400L)) - days_0000_to_1970;
237 long maxDays = (maxYear * 365L + ((maxYear + maxOffset) / 4L - (maxYear + maxOffset) / 100L + (maxYear + maxOffset) / 400L)) + 365L - days_0000_to_1970;
238
239 final LocalDate maxDate = LocalDate.of(Year.MAX_VALUE, 12, 31);
240 OffsetDateTime expected = OffsetDateTime.of(LocalDate.of((int) minYear, 1, 1), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
241 for (long i = minDays; i < maxDays; i++) {
242 Instant instant = Instant.ofEpochSecond(i * 24L * 60L * 60L);
243 try {
244 OffsetDateTime test = OffsetDateTime.ofInstant(instant, ZoneOffset.UTC);
245 assertEquals(test, expected);
246 if (expected.getDate().equals(maxDate) == false) {
247 expected = expected.plusDays(1);
248 }
249 } catch (RuntimeException|Error ex) {
250 System.out.println("Error: " + i + " " + expected);
251 throw ex;
252 }
253 }
254 }
255
256 // for performance testing
257 // private void doTest_factory_ofInstant_all(int minYear, int maxYear) {
258 // long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
259 // int minOffset = (minYear <= 0 ? 0 : 3);
260 // int maxOffset = (maxYear <= 0 ? 0 : 3);
261 // long minDays = (long) (minYear * 365L + ((minYear + minOffset) / 4L - (minYear + minOffset) / 100L + (minYear + minOffset) / 400L)) - days_0000_to_1970;
262 // long maxDays = (long) (maxYear * 365L + ((maxYear + maxOffset) / 4L - (maxYear + maxOffset) / 100L + (maxYear + maxOffset) / 400L)) + 365L - days_0000_to_1970;
263 //
264 // OffsetDateTime expected = OffsetDateTime.dateTime(minYear, 1, 1, 0, 0, 0, 0, ZoneOffset.UTC);
265 // Date cutover = new Date(Long.MIN_VALUE);
266 // GregorianCalendar cal = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
267 // cal.setGregorianChange(cutover);
268 // for (long i = minDays; i < maxDays; i++) {
269 // Instant instant = Instant.instant(i * 24L * 60L * 60L);
270 // try {
271 // cal.setTimeInMillis(instant.getEpochSecond() * 1000L);
272 // assertEquals(cal.get(GregorianCalendar.MONTH), expected.getMonth().getValue() - 1);
273 // assertEquals(cal.get(GregorianCalendar.DAY_OF_MONTH), expected.getDayOfMonth().getValue());
274 // expected = expected.plusDays(1);
275 // } catch (RuntimeException ex) {
276 // System.out.println("Error: " + i + " " + expected);
277 // throw ex;
278 // } catch (Error ex) {
279 // System.out.println("Error: " + i + " " + expected);
280 // throw ex;
281 // }
282 // }
283 // }
284
285 //-----------------------------------------------------------------------
286 public void test_toInstant_19700101() {
287 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
288 Instant test = dt.toInstant();
289 assertEquals(test.getEpochSecond(), 0);
290 assertEquals(test.getNano(), 0);
291 }
292
293 public void test_toInstant_19700101_oneNano() {
294 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of(0, 0, 0, 1), ZoneOffset.UTC);
295 Instant test = dt.toInstant();
296 assertEquals(test.getEpochSecond(), 0);
297 assertEquals(test.getNano(), 1);
298 }
299
300 public void test_toInstant_19700101_minusOneNano() {
301 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1969, 12, 31), LocalTime.of(23, 59, 59, 999999999), ZoneOffset.UTC);
302 Instant test = dt.toInstant();
303 assertEquals(test.getEpochSecond(), -1);
304 assertEquals(test.getNano(), 999999999);
305 }
306
307 public void test_toInstant_19700102() {
308 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 2), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
309 Instant test = dt.toInstant();
310 assertEquals(test.getEpochSecond(), 24L * 60L * 60L);
311 assertEquals(test.getNano(), 0);
312 }
313
314 public void test_toInstant_19691231() {
315 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1969, 12, 31), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
316 Instant test = dt.toInstant();
317 assertEquals(test.getEpochSecond(), -24L * 60L * 60L);
318 assertEquals(test.getNano(), 0);
319 }
320
321 //-----------------------------------------------------------------------
322 public void test_toEpochSecond_19700101() {
323 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
324 assertEquals(dt.toEpochSecond(), 0);
325 }
326
327 public void test_toEpochSecond_19700101_oneNano() {
328 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of( 0, 0, 0, 1), ZoneOffset.UTC);
329 assertEquals(dt.toEpochSecond(), 0);
330 }
331
332 public void test_toEpochSecond_19700101_minusOneNano() {
333 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1969, 12, 31), LocalTime.of(23, 59, 59, 999999999), ZoneOffset.UTC);
334 assertEquals(dt.toEpochSecond(), -1);
335 }
336
337 public void test_toEpochSecond_19700102() {
338 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 2), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
339 assertEquals(dt.toEpochSecond(), 24L * 60L * 60L);
340 }
341
342 public void test_toEpochSecond_19691231() {
343 OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1969, 12, 31), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
344 assertEquals(dt.toEpochSecond(), -24L * 60L * 60L);
345 }
346
347 }