| /* |
| * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 6844313 8011647 |
| * @summary Unit test for java.nio.file.FileTime |
| * @key randomness |
| */ |
| |
| |
| import java.nio.file.attribute.FileTime; |
| import java.time.Instant; |
| import java.util.concurrent.TimeUnit; |
| import static java.util.concurrent.TimeUnit.*; |
| import java.util.Random; |
| import java.util.EnumSet; |
| |
| public class Basic { |
| |
| static final Random rand = new Random(); |
| |
| public static void main(String[] args) { |
| long now = System.currentTimeMillis(); |
| long tomorrowInDays = TimeUnit.DAYS.convert(now, MILLISECONDS) + 1; |
| long yesterdayInDays = TimeUnit.DAYS.convert(now, MILLISECONDS) - 1; |
| |
| Instant nowInstant = Instant.ofEpochMilli(now); |
| |
| // equals |
| eq(now, MILLISECONDS, now, MILLISECONDS); |
| eq(now, MILLISECONDS, now*1000L, MICROSECONDS); |
| neq(now, MILLISECONDS, 0, MILLISECONDS); |
| neq(now, MILLISECONDS, 0, MICROSECONDS); |
| |
| eq(nowInstant, now, MILLISECONDS); |
| eq(nowInstant, now*1000L, MICROSECONDS); |
| neq(nowInstant, 0, MILLISECONDS); |
| neq(nowInstant, 0, MICROSECONDS); |
| |
| // compareTo |
| cmp(now, MILLISECONDS, now, MILLISECONDS, 0); |
| cmp(now, MILLISECONDS, now*1000L, MICROSECONDS, 0); |
| cmp(now, MILLISECONDS, now-1234, MILLISECONDS, 1); |
| cmp(now, MILLISECONDS, now+1234, MILLISECONDS, -1); |
| |
| cmp(tomorrowInDays, DAYS, now, MILLISECONDS, 1); |
| cmp(now, MILLISECONDS, tomorrowInDays, DAYS, -1); |
| cmp(yesterdayInDays, DAYS, now, MILLISECONDS, -1); |
| cmp(now, MILLISECONDS, yesterdayInDays, DAYS, 1); |
| cmp(yesterdayInDays, DAYS, now, MILLISECONDS, -1); |
| |
| cmp(Long.MAX_VALUE, DAYS, Long.MAX_VALUE, NANOSECONDS, 1); |
| cmp(Long.MAX_VALUE, DAYS, Long.MIN_VALUE, NANOSECONDS, 1); |
| cmp(Long.MIN_VALUE, DAYS, Long.MIN_VALUE, NANOSECONDS, -1); |
| cmp(Long.MIN_VALUE, DAYS, Long.MAX_VALUE, NANOSECONDS, -1); |
| |
| cmp(Instant.MIN, Long.MIN_VALUE, DAYS, 1); |
| cmp(Instant.MIN, Long.MIN_VALUE, HOURS, 1); |
| cmp(Instant.MIN, Long.MIN_VALUE, MINUTES, 1); |
| cmp(Instant.MIN, Long.MIN_VALUE, SECONDS, 1); |
| cmp(Instant.MIN, Instant.MIN.getEpochSecond() - 1, SECONDS, 1); |
| cmp(Instant.MIN, Instant.MIN.getEpochSecond() - 100, SECONDS, 1); |
| cmp(Instant.MIN, Instant.MIN.getEpochSecond(), SECONDS, 0); |
| |
| cmp(Instant.MAX, Long.MAX_VALUE, DAYS, -1); |
| cmp(Instant.MAX, Long.MAX_VALUE, HOURS, -1); |
| cmp(Instant.MAX, Long.MAX_VALUE, MINUTES, -1); |
| cmp(Instant.MAX, Long.MAX_VALUE, SECONDS, -1); |
| cmp(Instant.MAX, Instant.MAX.getEpochSecond() + 1, SECONDS, -1); |
| cmp(Instant.MAX, Instant.MAX.getEpochSecond() + 100, SECONDS, -1); |
| cmp(Instant.MAX, Instant.MAX.getEpochSecond(), SECONDS, 0); |
| |
| cmp(nowInstant, now, MILLISECONDS, 0); |
| cmp(nowInstant, now*1000L, MICROSECONDS, 0); |
| cmp(nowInstant, now-1234, MILLISECONDS, 1); |
| cmp(nowInstant, now+1234, MILLISECONDS, -1); |
| cmp(nowInstant, tomorrowInDays, DAYS, -1); |
| cmp(nowInstant, yesterdayInDays, DAYS, 1); |
| |
| // to(TimeUnit) |
| to(MILLISECONDS.convert(1, DAYS) - 1, MILLISECONDS); |
| to(MILLISECONDS.convert(1, DAYS) + 0, MILLISECONDS); |
| to(MILLISECONDS.convert(1, DAYS) + 1, MILLISECONDS); |
| to(1, MILLISECONDS); |
| to(0, MILLISECONDS); |
| to(1, MILLISECONDS); |
| to(MILLISECONDS.convert(-1, DAYS) - 1, MILLISECONDS); |
| to(MILLISECONDS.convert(-1, DAYS) + 0, MILLISECONDS); |
| to(MILLISECONDS.convert(-1, DAYS) + 1, MILLISECONDS); |
| for (TimeUnit unit: TimeUnit.values()) { |
| for (int i=0; i<100; i++) { to(rand.nextLong(), unit); } |
| to(Long.MIN_VALUE, unit); |
| to(Long.MAX_VALUE, unit); |
| } |
| |
| // toInstant() |
| int N = 1000; |
| for (TimeUnit unit : EnumSet.allOf(TimeUnit.class)) { |
| for (int i = 0; i < N; i++) { |
| long value = rand.nextLong(); |
| FileTime ft = FileTime.from(value, unit); |
| Instant instant = ft.toInstant(); |
| if (instant != Instant.MIN && instant != Instant.MAX) { |
| eqTime(value, unit, instant); |
| } |
| } |
| } |
| for (TimeUnit unit : EnumSet.allOf(TimeUnit.class)) { |
| long value = Long.MIN_VALUE; |
| FileTime ft = FileTime.from(value, unit); |
| Instant instant = ft.toInstant(); |
| if (unit.compareTo(TimeUnit.SECONDS) < 0) { |
| eqTime(value, unit, instant); |
| } else if (!instant.equals(Instant.MIN)) { |
| throw new RuntimeException("should overflow to MIN"); |
| } |
| value = Long.MAX_VALUE; |
| ft = FileTime.from(value, unit); |
| instant = ft.toInstant(); |
| if (unit.compareTo(TimeUnit.SECONDS) < 0) { |
| eqTime(value, unit, instant); |
| } else if (!instant.equals(Instant.MAX)) { |
| throw new RuntimeException("should overflow to MAX"); |
| } |
| } |
| |
| // from(Instant) |
| final long MAX_SECOND = 31556889864403199L; |
| for (int i = 0; i < N; i++) { |
| long v = rand.nextLong(); |
| long secs = v % MAX_SECOND; |
| Instant instant = Instant.ofEpochSecond(secs, rand.nextInt(1000_000_000)); |
| FileTime ft = FileTime.from(instant); |
| if (!ft.toInstant().equals(instant) || ft.to(SECONDS) != secs) { |
| throw new RuntimeException("from(Instant) failed"); |
| } |
| long millis = v; |
| instant = Instant.ofEpochMilli(millis); |
| ft = FileTime.from(instant); |
| if (!ft.toInstant().equals(instant) || |
| ft.toMillis() != instant.toEpochMilli()) { |
| throw new RuntimeException("from(Instant) failed"); |
| } |
| long nanos = v; |
| ft = FileTime.from(nanos, NANOSECONDS); |
| secs = nanos / 1000_000_000; |
| nanos = nanos % 1000_000_000; |
| instant = Instant.ofEpochSecond(secs, nanos); |
| if (!ft.equals(FileTime.from(instant))) { |
| throw new RuntimeException("from(Instant) failed"); |
| } |
| } |
| |
| // toString |
| ts(1L, DAYS, "1970-01-02T00:00:00Z"); |
| ts(1L, HOURS, "1970-01-01T01:00:00Z"); |
| ts(1L, MINUTES, "1970-01-01T00:01:00Z"); |
| ts(1L, SECONDS, "1970-01-01T00:00:01Z"); |
| ts(1L, MILLISECONDS, "1970-01-01T00:00:00.001Z"); |
| ts(1L, MICROSECONDS, "1970-01-01T00:00:00.000001Z"); |
| ts(1L, NANOSECONDS, "1970-01-01T00:00:00.000000001Z"); |
| ts(999999999L, NANOSECONDS, "1970-01-01T00:00:00.999999999Z"); |
| ts(9999999999L, NANOSECONDS, "1970-01-01T00:00:09.999999999Z"); |
| |
| ts(-1L, DAYS, "1969-12-31T00:00:00Z"); |
| ts(-1L, HOURS, "1969-12-31T23:00:00Z"); |
| ts(-1L, MINUTES, "1969-12-31T23:59:00Z"); |
| ts(-1L, SECONDS, "1969-12-31T23:59:59Z"); |
| ts(-1L, MILLISECONDS, "1969-12-31T23:59:59.999Z"); |
| ts(-1L, MICROSECONDS, "1969-12-31T23:59:59.999999Z"); |
| ts(-1L, NANOSECONDS, "1969-12-31T23:59:59.999999999Z"); |
| ts(-999999999L, NANOSECONDS, "1969-12-31T23:59:59.000000001Z"); |
| ts(-9999999999L, NANOSECONDS, "1969-12-31T23:59:50.000000001Z"); |
| |
| ts(-62135596799999L, MILLISECONDS, "0001-01-01T00:00:00.001Z"); |
| ts(-62135596800000L, MILLISECONDS, "0001-01-01T00:00:00Z"); |
| ts(-62135596800001L, MILLISECONDS, "-0001-12-31T23:59:59.999Z"); |
| |
| ts(253402300799999L, MILLISECONDS, "9999-12-31T23:59:59.999Z"); |
| ts(-377642044800001L, MILLISECONDS, "-9999-12-31T23:59:59.999Z"); |
| |
| // NTFS epoch in usec. |
| ts(-11644473600000000L, MICROSECONDS, "1601-01-01T00:00:00Z"); |
| |
| ts(Instant.MIN, "-1000000001-01-01T00:00:00Z"); |
| ts(Instant.MAX, "1000000000-12-31T23:59:59.999999999Z"); |
| |
| try { |
| FileTime.from(0L, null); |
| throw new RuntimeException("NullPointerException expected"); |
| } catch (NullPointerException npe) { } |
| try { |
| FileTime.from(null); |
| throw new RuntimeException("NullPointerException expected"); |
| } catch (NullPointerException npe) { } |
| |
| FileTime time = FileTime.fromMillis(now); |
| if (time.equals(null)) |
| throw new RuntimeException("should not be equal to null"); |
| try { |
| time.compareTo(null); |
| throw new RuntimeException("NullPointerException expected"); |
| } catch (NullPointerException npe) { } |
| |
| // Instant + toMilli() overflow |
| overflow(Long.MAX_VALUE, |
| FileTime.from(Instant.MAX).toMillis()); |
| overflow(Long.MAX_VALUE, |
| FileTime.from(Instant.ofEpochSecond(Long.MAX_VALUE / 1000 + 1)) |
| .toMillis()); |
| overflow(Long.MIN_VALUE, |
| FileTime.from(Instant.MIN).toMillis()); |
| overflow(Long.MIN_VALUE, |
| FileTime.from(Instant.ofEpochSecond(Long.MIN_VALUE / 1000 - 1)) |
| .toMillis()); |
| |
| // Instant + to(TimeUnit) overflow |
| overflow(Long.MAX_VALUE, |
| FileTime.from(Instant.ofEpochSecond(Long.MAX_VALUE / 1000 + 1)) |
| .to(MILLISECONDS)); |
| overflow(Long.MAX_VALUE, |
| FileTime.from(Instant.ofEpochSecond(Long.MAX_VALUE / 1000, |
| MILLISECONDS.toNanos(1000))) |
| .to(MILLISECONDS)); |
| overflow(Long.MIN_VALUE, |
| FileTime.from(Instant.ofEpochSecond(Long.MIN_VALUE / 1000 - 1)) |
| .to(MILLISECONDS)); |
| overflow(Long.MIN_VALUE, |
| FileTime.from(Instant.ofEpochSecond(Long.MIN_VALUE / 1000, |
| -MILLISECONDS.toNanos(1))) |
| .to(MILLISECONDS)); |
| } |
| |
| static void overflow(long minmax, long v) { |
| if (v != minmax) |
| throw new RuntimeException("saturates to Long.MIN/MAX_VALUE expected"); |
| } |
| |
| static void cmp(long v1, TimeUnit u1, long v2, TimeUnit u2, int expected) { |
| int result = FileTime.from(v1, u1).compareTo(FileTime.from(v2, u2)); |
| if (result != expected) |
| throw new RuntimeException("unexpected order"); |
| } |
| |
| static void cmp(Instant ins, long v2, TimeUnit u2, int expected) { |
| int result = FileTime.from(ins).compareTo(FileTime.from(v2, u2)); |
| if (result != expected) |
| throw new RuntimeException("unexpected order"); |
| } |
| |
| static void eq(long v1, TimeUnit u1, long v2, TimeUnit u2) { |
| FileTime t1 = FileTime.from(v1, u1); |
| FileTime t2 = FileTime.from(v2, u2); |
| if (!t1.equals(t2)) |
| throw new RuntimeException("not equal"); |
| if (t1.hashCode() != t2.hashCode()) |
| throw new RuntimeException("hashCodes should be equal"); |
| } |
| |
| static void eq(Instant ins, long v2, TimeUnit u2) { |
| FileTime t1 = FileTime.from(ins); |
| FileTime t2 = FileTime.from(v2, u2); |
| if (!t1.equals(t2)) |
| throw new RuntimeException("not equal"); |
| if (t1.hashCode() != t2.hashCode()) |
| throw new RuntimeException("hashCodes should be equal"); |
| } |
| |
| static void eqTime(long value, TimeUnit unit, Instant instant) { |
| long secs = SECONDS.convert(value, unit); |
| long nanos = NANOSECONDS.convert(value - unit.convert(secs, SECONDS), unit); |
| if (nanos < 0) { // normalize nanoOfSecond to positive |
| secs -= 1; |
| nanos += 1000_000_000; |
| } |
| if (secs != instant.getEpochSecond() || (int)nanos != instant.getNano()) { |
| System.err.println(" ins=" + instant); |
| throw new RuntimeException("ft and instant are not the same time point"); |
| } |
| } |
| |
| static void neq(long v1, TimeUnit u1, long v2, TimeUnit u2) { |
| FileTime t1 = FileTime.from(v1, u1); |
| FileTime t2 = FileTime.from(v2, u2); |
| if (t1.equals(t2)) |
| throw new RuntimeException("should not be equal"); |
| } |
| |
| static void neq(Instant ins, long v2, TimeUnit u2) { |
| FileTime t1 = FileTime.from(ins); |
| FileTime t2 = FileTime.from(v2, u2); |
| if (t1.equals(t2)) |
| throw new RuntimeException("should not be equal"); |
| } |
| |
| static void to(long v, TimeUnit unit) { |
| FileTime t = FileTime.from(v, unit); |
| for (TimeUnit u: TimeUnit.values()) { |
| long result = t.to(u); |
| long expected = u.convert(v, unit); |
| if (result != expected) { |
| throw new RuntimeException("unexpected result"); |
| } |
| } |
| } |
| |
| static void ts(long v, TimeUnit unit, String expected) { |
| String result = FileTime.from(v, unit).toString(); |
| if (!result.equals(expected)) { |
| System.err.format("FileTime.from(%d, %s).toString() failed\n", v, unit); |
| System.err.format("Expected: %s\n", expected); |
| System.err.format(" Got: %s\n", result); |
| throw new RuntimeException(); |
| } |
| } |
| |
| static void ts(Instant instant, String expected) { |
| String result = FileTime.from(instant).toString(); |
| if (!result.equals(expected)) { |
| System.err.format("FileTime.from(%s).toString() failed\n", instant); |
| System.err.format("Expected: %s\n", expected); |
| System.err.format(" Got: %s\n", result); |
| throw new RuntimeException(); |
| } |
| } |
| } |