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