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