190 lines
7.1 KiB
Java
190 lines
7.1 KiB
Java
/*
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* Copyright (c) 2007, 2011, 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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/*
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* @test
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* @bug 6571655 6571881 6574585 6571297
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* @summary Test various args to task scheduling methods
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*/
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import java.util.*;
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import java.util.concurrent.*;
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import static java.util.concurrent.TimeUnit.*;
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public class Args {
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static final long DELAY_MS = 30 * 1000L;
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void schedule(final Timer t, final TimerTask task, final Date d) {
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t.schedule(task, d);
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assertThrows
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(IllegalStateException.class,
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() -> t.schedule(task, d));
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}
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void schedule(final Timer t, final TimerTask task, final Date d, final
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long period) {
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t.schedule(task, d, period);
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assertThrows
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(IllegalStateException.class,
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() -> t.schedule(task, d, period));
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}
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void scheduleAtFixedRate(final Timer t, final TimerTask task, final
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Date d, final long period) {
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t.scheduleAtFixedRate(task, d, period);
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assertThrows
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(IllegalStateException.class,
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() -> t.scheduleAtFixedRate(task, d, period));
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}
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TimerTask counter(final CountDownLatch latch) {
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return new TimerTask() { public void run() {
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if (latch.getCount() == 0)
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fail(String.format("Latch counted down too many times: " +
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latch));
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latch.countDown();
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}};
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}
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TimerTask nop() {
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return new TimerTask() { public void run() { }};
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}
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void test(String[] args) throws Throwable {
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final Timer t = new Timer();
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try {
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test(t);
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} finally {
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// Ensure this test doesn't interfere with subsequent
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// tests even in case of failure.
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t.cancel();
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}
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// Attempts to schedule tasks on a cancelled Timer result in ISE.
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final Date past = new Date(System.currentTimeMillis() - DELAY_MS);
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final Date future = new Date(System.currentTimeMillis() + DELAY_MS);
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assertThrows
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(IllegalStateException.class,
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() -> t.schedule(nop(), 42),
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() -> t.schedule(nop(), 42),
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() -> t.schedule(nop(), past),
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() -> t.schedule(nop(), 42, 42),
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() -> t.schedule(nop(), past, 42),
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() -> t.scheduleAtFixedRate(nop(), 42, 42),
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() -> t.scheduleAtFixedRate(nop(), past, 42),
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() -> t.scheduleAtFixedRate(nop(), future, 42));
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}
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void test(Timer t) throws Throwable {
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final TimerTask x = new TimerTask() { public void run() {}};
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assertThrows
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(IllegalArgumentException.class,
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() -> t.schedule(x, -42),
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() -> t.schedule(x, new Date(-42)),
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() -> t.schedule(x, Long.MAX_VALUE),
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() -> t.schedule(x, -42, 42),
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() -> t.schedule(x, new Date(-42), 42),
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() -> t.schedule(x, Long.MAX_VALUE, 42),
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() -> t.schedule(x, 42, 0),
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() -> t.schedule(x, new Date(42), 0),
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() -> t.schedule(x, 42, -42),
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() -> t.schedule(x, new Date(42), -42),
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() -> t.scheduleAtFixedRate(x, -42, 42),
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() -> t.scheduleAtFixedRate(x, new Date(-42), 42),
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() -> t.scheduleAtFixedRate(x, Long.MAX_VALUE, 42),
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() -> t.scheduleAtFixedRate(x, 42, 0),
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() -> t.scheduleAtFixedRate(x, new Date(42), 0),
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() -> t.scheduleAtFixedRate(x, 42, -42),
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() -> t.scheduleAtFixedRate(x, new Date(42), -42));
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assertThrows
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(NullPointerException.class,
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() -> t.schedule(null, 42),
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() -> t.schedule(x, (Date)null),
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() -> t.schedule(null, 42, 42),
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() -> t.schedule(x, (Date)null, 42),
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() -> t.scheduleAtFixedRate(null, 42, 42),
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() -> t.scheduleAtFixedRate(x, (Date)null, 42));
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// Create local classes for clearer diagnostics in case of failure
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class OneShotLatch extends CountDownLatch {
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OneShotLatch() { super(1); }
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}
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class FixedDelayLatch extends CountDownLatch {
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FixedDelayLatch() { super(1); }
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}
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class FixedRateLatch extends CountDownLatch {
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FixedRateLatch() { super(11); }
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}
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final CountDownLatch y1 = new OneShotLatch();
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final CountDownLatch y2 = new FixedDelayLatch();
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final CountDownLatch y3 = new FixedRateLatch();
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final long start = System.currentTimeMillis();
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final Date past = new Date(start - (10 * DELAY_MS + DELAY_MS / 2));
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schedule( t, counter(y1), past);
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schedule( t, counter(y2), past, DELAY_MS);
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scheduleAtFixedRate(t, counter(y3), past, DELAY_MS);
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check(y1.await(DELAY_MS / 4, MILLISECONDS));
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check(y2.await(DELAY_MS / 4, MILLISECONDS));
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check(y3.await(DELAY_MS / 4, MILLISECONDS));
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final long elapsed = System.currentTimeMillis() - start;
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if (elapsed >= DELAY_MS / 2)
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fail(String.format("Test took too long: elapsed=%d%n",
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elapsed));
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}
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//--------------------- Infrastructure ---------------------------
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volatile int passed = 0, failed = 0;
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void pass() {passed++;}
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void fail() {failed++; Thread.dumpStack();}
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void fail(String msg) {System.err.println(msg); fail();}
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void unexpected(Throwable t) {failed++; t.printStackTrace();}
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void check(boolean cond) {if (cond) pass(); else fail();}
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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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new Args().instanceMain(args);}
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void instanceMain(String[] args) throws Throwable {
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try {test(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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interface F { void f() throws Throwable; }
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void assertThrows(Class<? extends Throwable> k, F... fs) {
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for (F f : fs)
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try {f.f(); fail("Expected " + k.getName() + " not thrown");}
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catch (Throwable t) {
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if (k.isAssignableFrom(t.getClass())) pass();
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else unexpected(t);}}
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}
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