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/*
* Copyright (c) 2005, 2006, 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 5057341 6363898
* @summary Basic tests for TimeUnit
* @library /test/lib
* @author Martin Buchholz
*/
import static java.util.concurrent.TimeUnit.DAYS;
import static java.util.concurrent.TimeUnit.HOURS;
import static java.util.concurrent.TimeUnit.MICROSECONDS;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.concurrent.TimeUnit.MINUTES;
import static java.util.concurrent.TimeUnit.NANOSECONDS;
import static java.util.concurrent.TimeUnit.SECONDS;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import java.util.Arrays;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import jdk.test.lib.Utils;
public class Basic {
static final long LONG_DELAY_MS = Utils.adjustTimeout(10_000);
private static void realMain(String[] args) throws Throwable {
for (TimeUnit u : TimeUnit.values()) {
System.out.println(u);
check(u instanceof TimeUnit);
equal(42L, u.convert(42, u));
for (TimeUnit v : TimeUnit.values())
if (u.convert(42, v) >= 42)
equal(42L, v.convert(u.convert(42, v), u));
check(readObject(serializedForm(u)) == u);
}
equal( 24L, HOURS.convert (1, DAYS));
equal( 60L, MINUTES.convert (1, HOURS));
equal( 60L, SECONDS.convert (1, MINUTES));
equal(1000L, MILLISECONDS.convert(1, SECONDS));
equal(1000L, MICROSECONDS.convert(1, MILLISECONDS));
equal(1000L, NANOSECONDS.convert (1, MICROSECONDS));
equal( 24L, DAYS.toHours(1));
equal( 60L, HOURS.toMinutes(1));
equal( 60L, MINUTES.toSeconds(1));
equal(1000L, SECONDS.toMillis(1));
equal(1000L, MILLISECONDS.toMicros(1));
equal(1000L, MICROSECONDS.toNanos(1));
//----------------------------------------------------------------
// TimeUnit.sleep sleeps for at least the specified time.
// TimeUnit.sleep(x, unit) for x <= 0 does not sleep at all.
//----------------------------------------------------------------
ThreadLocalRandom rnd = ThreadLocalRandom.current();
int maxTimeoutMillis = rnd.nextInt(1, 12);
List<CompletableFuture<?>> workers =
IntStream.range(-1, maxTimeoutMillis + 1)
.mapToObj(timeoutMillis -> (Runnable) () -> {
try {
long startTime = System.nanoTime();
MILLISECONDS.sleep(timeoutMillis);
long elapsedNanos = System.nanoTime() - startTime;
long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis);
check(elapsedNanos >= timeoutNanos);
} catch (InterruptedException fail) {
throw new AssertionError(fail);
}})
.map(CompletableFuture::runAsync)
.collect(Collectors.toList());
workers.forEach(CompletableFuture<?>::join);
//----------------------------------------------------------------
// Tests for serialized form compatibility with previous release
//----------------------------------------------------------------
byte[] serializedForm = /* Generated using JDK 5 */
{-84, -19, 0, 5, '~', 'r', 0, 29, 'j', 'a', 'v', 'a', '.',
'u', 't', 'i', 'l', '.', 'c', 'o', 'n', 'c', 'u', 'r', 'r', 'e',
'n', 't', '.', 'T', 'i', 'm', 'e', 'U', 'n', 'i', 't', 0, 0,
0, 0, 0, 0, 0, 0, 18, 0, 0, 'x', 'r', 0, 14,
'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'E', 'n', 'u',
'm', 0, 0, 0, 0, 0, 0, 0, 0, 18, 0, 0, 'x',
'p', 't', 0, 7, 'S', 'E', 'C', 'O', 'N', 'D', 'S', };
check(Arrays.equals(serializedForm(SECONDS), serializedForm));
}
//--------------------- Infrastructure ---------------------------
static volatile int passed = 0, failed = 0;
static void pass() {passed++;}
static void fail() {failed++; Thread.dumpStack();}
static void fail(String msg) {System.out.println(msg); fail();}
static void unexpected(Throwable t) {failed++; t.printStackTrace();}
static void check(boolean cond) {if (cond) pass(); else fail();}
static void equal(Object x, Object y) {
if (x == null ? y == null : x.equals(y)) pass();
else fail(x + " not equal to " + y);}
public static void main(String[] args) throws Throwable {
try {realMain(args);} catch (Throwable t) {unexpected(t);}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
static byte[] serializedForm(Object obj) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
new ObjectOutputStream(baos).writeObject(obj);
return baos.toByteArray();
}
static Object readObject(byte[] bytes)
throws IOException, ClassNotFoundException {
InputStream is = new ByteArrayInputStream(bytes);
return new ObjectInputStream(is).readObject();
}
}
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