1 /*
2 * Copyright (c) 2009, 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 /* @test
25 * @bug 6844313 8011647
26 * @summary Unit test for java.nio.file.FileTime
27 * @key randomness
28 */
29
30
31 import java.nio.file.attribute.FileTime;
32 import java.time.Instant;
33 import java.util.concurrent.TimeUnit;
34 import static java.util.concurrent.TimeUnit.*;
35 import java.util.Random;
36 import java.util.EnumSet;
37
38 public class Basic {
39
40 static final Random rand = new Random();
41
42 public static void main(String[] args) {
43 long now = System.currentTimeMillis();
44 long tomorrowInDays = TimeUnit.DAYS.convert(now, MILLISECONDS) + 1;
45 long yesterdayInDays = TimeUnit.DAYS.convert(now, MILLISECONDS) - 1;
46
47 Instant nowInstant = Instant.ofEpochMilli(now);
48
49 // equals
50 eq(now, MILLISECONDS, now, MILLISECONDS);
51 eq(now, MILLISECONDS, now*1000L, MICROSECONDS);
52 neq(now, MILLISECONDS, 0, MILLISECONDS);
53 neq(now, MILLISECONDS, 0, MICROSECONDS);
54
55 eq(nowInstant, now, MILLISECONDS);
56 eq(nowInstant, now*1000L, MICROSECONDS);
57 neq(nowInstant, 0, MILLISECONDS);
58 neq(nowInstant, 0, MICROSECONDS);
59
60 // compareTo
61 cmp(now, MILLISECONDS, now, MILLISECONDS, 0);
62 cmp(now, MILLISECONDS, now*1000L, MICROSECONDS, 0);
63 cmp(now, MILLISECONDS, now-1234, MILLISECONDS, 1);
64 cmp(now, MILLISECONDS, now+1234, MILLISECONDS, -1);
65
66 cmp(tomorrowInDays, DAYS, now, MILLISECONDS, 1);
67 cmp(now, MILLISECONDS, tomorrowInDays, DAYS, -1);
68 cmp(yesterdayInDays, DAYS, now, MILLISECONDS, -1);
69 cmp(now, MILLISECONDS, yesterdayInDays, DAYS, 1);
70 cmp(yesterdayInDays, DAYS, now, MILLISECONDS, -1);
71
72 cmp(Long.MAX_VALUE, DAYS, Long.MAX_VALUE, NANOSECONDS, 1);
73 cmp(Long.MAX_VALUE, DAYS, Long.MIN_VALUE, NANOSECONDS, 1);
74 cmp(Long.MIN_VALUE, DAYS, Long.MIN_VALUE, NANOSECONDS, -1);
75 cmp(Long.MIN_VALUE, DAYS, Long.MAX_VALUE, NANOSECONDS, -1);
76
77 cmp(Instant.MIN, Long.MIN_VALUE, DAYS, 1);
78 cmp(Instant.MIN, Long.MIN_VALUE, HOURS, 1);
79 cmp(Instant.MIN, Long.MIN_VALUE, MINUTES, 1);
80 cmp(Instant.MIN, Long.MIN_VALUE, SECONDS, 1);
81 cmp(Instant.MIN, Instant.MIN.getEpochSecond() - 1, SECONDS, 1);
82 cmp(Instant.MIN, Instant.MIN.getEpochSecond() - 100, SECONDS, 1);
83 cmp(Instant.MIN, Instant.MIN.getEpochSecond(), SECONDS, 0);
84
85 cmp(Instant.MAX, Long.MAX_VALUE, DAYS, -1);
86 cmp(Instant.MAX, Long.MAX_VALUE, HOURS, -1);
87 cmp(Instant.MAX, Long.MAX_VALUE, MINUTES, -1);
88 cmp(Instant.MAX, Long.MAX_VALUE, SECONDS, -1);
89 cmp(Instant.MAX, Instant.MAX.getEpochSecond() + 1, SECONDS, -1);
90 cmp(Instant.MAX, Instant.MAX.getEpochSecond() + 100, SECONDS, -1);
91 cmp(Instant.MAX, Instant.MAX.getEpochSecond(), SECONDS, 0);
92
93 cmp(nowInstant, now, MILLISECONDS, 0);
94 cmp(nowInstant, now*1000L, MICROSECONDS, 0);
95 cmp(nowInstant, now-1234, MILLISECONDS, 1);
96 cmp(nowInstant, now+1234, MILLISECONDS, -1);
97 cmp(nowInstant, tomorrowInDays, DAYS, -1);
98 cmp(nowInstant, yesterdayInDays, DAYS, 1);
99
100 // to(TimeUnit)
101 to(MILLISECONDS.convert(1, DAYS) - 1, MILLISECONDS);
102 to(MILLISECONDS.convert(1, DAYS) + 0, MILLISECONDS);
103 to(MILLISECONDS.convert(1, DAYS) + 1, MILLISECONDS);
104 to(1, MILLISECONDS);
105 to(0, MILLISECONDS);
106 to(1, MILLISECONDS);
107 to(MILLISECONDS.convert(-1, DAYS) - 1, MILLISECONDS);
108 to(MILLISECONDS.convert(-1, DAYS) + 0, MILLISECONDS);
109 to(MILLISECONDS.convert(-1, DAYS) + 1, MILLISECONDS);
110 for (TimeUnit unit: TimeUnit.values()) {
111 for (int i=0; i<100; i++) { to(rand.nextLong(), unit); }
112 to(Long.MIN_VALUE, unit);
113 to(Long.MAX_VALUE, unit);
114 }
115
116 // toInstant()
117 int N = 1000;
118 for (TimeUnit unit : EnumSet.allOf(TimeUnit.class)) {
119 for (int i = 0; i < N; i++) {
120 long value = rand.nextLong();
121 FileTime ft = FileTime.from(value, unit);
122 Instant instant = ft.toInstant();
123 if (instant != Instant.MIN && instant != Instant.MAX) {
124 eqTime(value, unit, instant);
125 }
126 }
127 }
128 for (TimeUnit unit : EnumSet.allOf(TimeUnit.class)) {
129 long value = Long.MIN_VALUE;
130 FileTime ft = FileTime.from(value, unit);
131 Instant instant = ft.toInstant();
132 if (unit.compareTo(TimeUnit.SECONDS) < 0) {
133 eqTime(value, unit, instant);
134 } else if (!instant.equals(Instant.MIN)) {
135 throw new RuntimeException("should overflow to MIN");
136 }
137 value = Long.MAX_VALUE;
138 ft = FileTime.from(value, unit);
139 instant = ft.toInstant();
140 if (unit.compareTo(TimeUnit.SECONDS) < 0) {
141 eqTime(value, unit, instant);
142 } else if (!instant.equals(Instant.MAX)) {
143 throw new RuntimeException("should overflow to MAX");
144 }
145 }
146
147 // from(Instant)
148 final long MAX_SECOND = 31556889864403199L;
149 for (int i = 0; i < N; i++) {
150 long v = rand.nextLong();
151 long secs = v % MAX_SECOND;
152 Instant instant = Instant.ofEpochSecond(secs, rand.nextInt(1000_000_000));
153 FileTime ft = FileTime.from(instant);
154 if (!ft.toInstant().equals(instant) || ft.to(SECONDS) != secs) {
155 throw new RuntimeException("from(Instant) failed");
156 }
157 long millis = v;
158 instant = Instant.ofEpochMilli(millis);
159 ft = FileTime.from(instant);
160 if (!ft.toInstant().equals(instant) ||
161 ft.toMillis() != instant.toEpochMilli()) {
162 throw new RuntimeException("from(Instant) failed");
163 }
164 long nanos = v;
165 ft = FileTime.from(nanos, NANOSECONDS);
166 secs = nanos / 1000_000_000;
167 nanos = nanos % 1000_000_000;
168 instant = Instant.ofEpochSecond(secs, nanos);
169 if (!ft.equals(FileTime.from(instant))) {
170 throw new RuntimeException("from(Instant) failed");
171 }
172 }
173
174 // toString
175 ts(1L, DAYS, "1970-01-02T00:00:00Z");
176 ts(1L, HOURS, "1970-01-01T01:00:00Z");
177 ts(1L, MINUTES, "1970-01-01T00:01:00Z");
178 ts(1L, SECONDS, "1970-01-01T00:00:01Z");
179 ts(1L, MILLISECONDS, "1970-01-01T00:00:00.001Z");
180 ts(1L, MICROSECONDS, "1970-01-01T00:00:00.000001Z");
181 ts(1L, NANOSECONDS, "1970-01-01T00:00:00.000000001Z");
182 ts(999999999L, NANOSECONDS, "1970-01-01T00:00:00.999999999Z");
183 ts(9999999999L, NANOSECONDS, "1970-01-01T00:00:09.999999999Z");
184
185 ts(-1L, DAYS, "1969-12-31T00:00:00Z");
186 ts(-1L, HOURS, "1969-12-31T23:00:00Z");
187 ts(-1L, MINUTES, "1969-12-31T23:59:00Z");
188 ts(-1L, SECONDS, "1969-12-31T23:59:59Z");
189 ts(-1L, MILLISECONDS, "1969-12-31T23:59:59.999Z");
190 ts(-1L, MICROSECONDS, "1969-12-31T23:59:59.999999Z");
191 ts(-1L, NANOSECONDS, "1969-12-31T23:59:59.999999999Z");
192 ts(-999999999L, NANOSECONDS, "1969-12-31T23:59:59.000000001Z");
193 ts(-9999999999L, NANOSECONDS, "1969-12-31T23:59:50.000000001Z");
194
195 ts(-62135596799999L, MILLISECONDS, "0001-01-01T00:00:00.001Z");
196 ts(-62135596800000L, MILLISECONDS, "0001-01-01T00:00:00Z");
197 ts(-62135596800001L, MILLISECONDS, "-0001-12-31T23:59:59.999Z");
198
199 ts(253402300799999L, MILLISECONDS, "9999-12-31T23:59:59.999Z");
200 ts(-377642044800001L, MILLISECONDS, "-9999-12-31T23:59:59.999Z");
201
202 // NTFS epoch in usec.
203 ts(-11644473600000000L, MICROSECONDS, "1601-01-01T00:00:00Z");
204
205 ts(Instant.MIN, "-1000000001-01-01T00:00:00Z");
206 ts(Instant.MAX, "1000000000-12-31T23:59:59.999999999Z");
207
208 try {
209 FileTime.from(0L, null);
210 throw new RuntimeException("NullPointerException expected");
211 } catch (NullPointerException npe) { }
212 try {
213 FileTime.from(null);
214 throw new RuntimeException("NullPointerException expected");
215 } catch (NullPointerException npe) { }
216
217 FileTime time = FileTime.fromMillis(now);
218 if (time.equals(null))
219 throw new RuntimeException("should not be equal to null");
220 try {
221 time.compareTo(null);
222 throw new RuntimeException("NullPointerException expected");
223 } catch (NullPointerException npe) { }
224
225 // Instant + toMilli() overflow
226 overflow(Long.MAX_VALUE,
227 FileTime.from(Instant.MAX).toMillis());
228 overflow(Long.MAX_VALUE,
229 FileTime.from(Instant.ofEpochSecond(Long.MAX_VALUE / 1000 + 1))
230 .toMillis());
231 overflow(Long.MIN_VALUE,
232 FileTime.from(Instant.MIN).toMillis());
233 overflow(Long.MIN_VALUE,
234 FileTime.from(Instant.ofEpochSecond(Long.MIN_VALUE / 1000 - 1))
235 .toMillis());
236
237 // Instant + to(TimeUnit) overflow
238 overflow(Long.MAX_VALUE,
239 FileTime.from(Instant.ofEpochSecond(Long.MAX_VALUE / 1000 + 1))
240 .to(MILLISECONDS));
241 overflow(Long.MAX_VALUE,
242 FileTime.from(Instant.ofEpochSecond(Long.MAX_VALUE / 1000,
243 MILLISECONDS.toNanos(1000)))
244 .to(MILLISECONDS));
245 overflow(Long.MIN_VALUE,
246 FileTime.from(Instant.ofEpochSecond(Long.MIN_VALUE / 1000 - 1))
247 .to(MILLISECONDS));
248 overflow(Long.MIN_VALUE,
249 FileTime.from(Instant.ofEpochSecond(Long.MIN_VALUE / 1000,
250 -MILLISECONDS.toNanos(1)))
251 .to(MILLISECONDS));
252 }
253
254 static void overflow(long minmax, long v) {
255 if (v != minmax)
256 throw new RuntimeException("saturates to Long.MIN/MAX_VALUE expected");
257 }
258
259 static void cmp(long v1, TimeUnit u1, long v2, TimeUnit u2, int expected) {
260 int result = FileTime.from(v1, u1).compareTo(FileTime.from(v2, u2));
261 if (result != expected)
262 throw new RuntimeException("unexpected order");
263 }
264
265 static void cmp(Instant ins, long v2, TimeUnit u2, int expected) {
266 int result = FileTime.from(ins).compareTo(FileTime.from(v2, u2));
267 if (result != expected)
268 throw new RuntimeException("unexpected order");
269 }
270
271 static void eq(long v1, TimeUnit u1, long v2, TimeUnit u2) {
272 FileTime t1 = FileTime.from(v1, u1);
273 FileTime t2 = FileTime.from(v2, u2);
274 if (!t1.equals(t2))
275 throw new RuntimeException("not equal");
276 if (t1.hashCode() != t2.hashCode())
277 throw new RuntimeException("hashCodes should be equal");
278 }
279
280 static void eq(Instant ins, long v2, TimeUnit u2) {
281 FileTime t1 = FileTime.from(ins);
282 FileTime t2 = FileTime.from(v2, u2);
283 if (!t1.equals(t2))
284 throw new RuntimeException("not equal");
285 if (t1.hashCode() != t2.hashCode())
286 throw new RuntimeException("hashCodes should be equal");
287 }
288
289 static void eqTime(long value, TimeUnit unit, Instant instant) {
290 long secs = SECONDS.convert(value, unit);
291 long nanos = NANOSECONDS.convert(value - unit.convert(secs, SECONDS), unit);
292 if (nanos < 0) { // normalize nanoOfSecond to positive
293 secs -= 1;
294 nanos += 1000_000_000;
295 }
296 if (secs != instant.getEpochSecond() || (int)nanos != instant.getNano()) {
297 System.err.println(" ins=" + instant);
298 throw new RuntimeException("ft and instant are not the same time point");
299 }
300 }
301
302 static void neq(long v1, TimeUnit u1, long v2, TimeUnit u2) {
303 FileTime t1 = FileTime.from(v1, u1);
304 FileTime t2 = FileTime.from(v2, u2);
305 if (t1.equals(t2))
306 throw new RuntimeException("should not be equal");
307 }
308
309 static void neq(Instant ins, long v2, TimeUnit u2) {
310 FileTime t1 = FileTime.from(ins);
311 FileTime t2 = FileTime.from(v2, u2);
312 if (t1.equals(t2))
313 throw new RuntimeException("should not be equal");
314 }
315
316 static void to(long v, TimeUnit unit) {
317 FileTime t = FileTime.from(v, unit);
318 for (TimeUnit u: TimeUnit.values()) {
319 long result = t.to(u);
320 long expected = u.convert(v, unit);
321 if (result != expected) {
322 throw new RuntimeException("unexpected result");
323 }
324 }
325 }
326
327 static void ts(long v, TimeUnit unit, String expected) {
328 String result = FileTime.from(v, unit).toString();
329 if (!result.equals(expected)) {
330 System.err.format("FileTime.from(%d, %s).toString() failed\n", v, unit);
331 System.err.format("Expected: %s\n", expected);
332 System.err.format(" Got: %s\n", result);
333 throw new RuntimeException();
334 }
335 }
336
337 static void ts(Instant instant, String expected) {
338 String result = FileTime.from(instant).toString();
339 if (!result.equals(expected)) {
340 System.err.format("FileTime.from(%s).toString() failed\n", instant);
341 System.err.format("Expected: %s\n", expected);
342 System.err.format(" Got: %s\n", result);
343 throw new RuntimeException();
344 }
345 }
346 }