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