/* * Copyright (c) 2005, 2016, 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 8141452 * @summary Basic tests for TimeUnit * @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.io.ObjectOutputStream; import java.io.ObjectInputStream; import java.time.temporal.ChronoUnit; import java.util.Arrays; import java.util.concurrent.TimeUnit; public class Basic { 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)); long t0 = System.nanoTime(); MILLISECONDS.sleep(3); /* See windows bug 6313903, might not sleep */ long elapsedMillis = (System.nanoTime() - t0)/(1000L * 1000L); System.out.printf("elapsed=%d%n", elapsedMillis); check(elapsedMillis >= 0); /* Might not sleep on windows: check(elapsedMillis >= 3); */ check(elapsedMillis < 1000); //---------------------------------------------------------------- // Tests for serialized form compatibility with previous release //---------------------------------------------------------------- byte[] serializedForm = /* Generated using tiger */ {-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(); } //----------------------------------------------------------------------- // toChronoUnit(), of() //-----------------------------------------------------------------------` @DataProvider(name = "convertedUnit") Object[][] data_convertedUnit() { return new Object[][] { {NANOSECONDS, ChronoUnit.NANOS, true}, {MICROSECONDS, ChronoUnit.MICROS, true}, {MILLISECONDS, ChronoUnit.MILLIS, true}, {SECONDS, ChronoUnit.SECONDS, true}, {MINUTES, ChronoUnit.MINUTES, true}, {HOURS, ChronoUnit.HOURS, true}, {DAYS, ChronoUnit.DAYS, true}, {NANOSECONDS, ChronoUnit.MINUTES, false}, {MICROSECONDS, ChronoUnit.SECONDS, false}, {MILLISECONDS, ChronoUnit.HOURS, false}, {SECONDS, ChronoUnit.MICROS, false}, {MINUTES, ChronoUnit.MILLIS, false}, {HOURS, ChronoUnit.DAYS, false}, {DAYS, ChronoUnit.NANOS, false}, }; } @Test(dataProvider = "convertedUnit") public void test_toChronoUnit(TimeUnit timeUnit, ChronoUnit chronoUnit, boolean expected) { assertEquals(TimeUnit.toChronoUnit(timeUnit).equals(chronoUnit), expected); } @Test(expectedExceptions=NullPointerException.class) public void test_toChronoUnit_null() { TimeUnit.toChronoUnit(null); } @Test(dataProvider = "convertedUnit") public void test_of(TimeUnit timeUnit, ChronoUnit chronoUnit, boolean expected) { assertEquals(TimeUnit.of(chronoUnit).equals(timeUnit), expected); } @Test(expectedExceptions=NullPointerException.class) public void test_of_null() { TimeUnit.of(null); } @Test(expectedExceptions=IllegalArgumentException.class) public void test_of_illegalArg() { TimeUnit.of(ChronoUnit.ERAS); } }