db85090553
Co-authored-by: Sean Mullan <mullan@openjdk.org> Co-authored-by: Alan Bateman <alanb@openjdk.org> Co-authored-by: Weijun Wang <weijun@openjdk.org> Co-authored-by: Aleksei Efimov <aefimov@openjdk.org> Co-authored-by: Brian Burkhalter <bpb@openjdk.org> Co-authored-by: Daniel Fuchs <dfuchs@openjdk.org> Co-authored-by: Harshitha Onkar <honkar@openjdk.org> Co-authored-by: Joe Wang <joehw@openjdk.org> Co-authored-by: Jorn Vernee <jvernee@openjdk.org> Co-authored-by: Justin Lu <jlu@openjdk.org> Co-authored-by: Kevin Walls <kevinw@openjdk.org> Co-authored-by: Lance Andersen <lancea@openjdk.org> Co-authored-by: Naoto Sato <naoto@openjdk.org> Co-authored-by: Roger Riggs <rriggs@openjdk.org> Co-authored-by: Brent Christian <bchristi@openjdk.org> Co-authored-by: Stuart Marks <smarks@openjdk.org> Co-authored-by: Ian Graves <igraves@openjdk.org> Co-authored-by: Phil Race <prr@openjdk.org> Co-authored-by: Erik Gahlin <egahlin@openjdk.org> Co-authored-by: Jaikiran Pai <jpai@openjdk.org> Reviewed-by: kevinw, aivanov, rriggs, lancea, coffeys, dfuchs, ihse, erikj, cjplummer, coleenp, naoto, mchung, prr, weijun, joehw, azvegint, psadhukhan, bchristi, sundar, attila
2213 lines
78 KiB
Java
2213 lines
78 KiB
Java
/*
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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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* This file is available under and governed by the GNU General Public
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* License version 2 only, as published by the Free Software Foundation.
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* However, the following notice accompanied the original version of this
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* file:
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*
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* Written by Doug Lea and Martin Buchholz with assistance from
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* members of JCP JSR-166 Expert Group and released to the public
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* domain, as explained at
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* http://creativecommons.org/publicdomain/zero/1.0/
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* Other contributors include Andrew Wright, Jeffrey Hayes,
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* Pat Fisher, Mike Judd.
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*/
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/*
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* @test id=default
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* @summary Conformance testing variant of JSR-166 tck tests.
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* @build *
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* @modules java.management java.base/jdk.internal.util
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* @run junit/othervm/timeout=1000 JSR166TestCase
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*/
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/*
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* @test id=forkjoinpool-common-parallelism
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* @summary Test implementation details variant of JSR-166
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* tck tests with ForkJoinPool common parallelism.
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* @build *
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* @modules java.management java.base/jdk.internal.util
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* @run junit/othervm/timeout=1000
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* --add-opens java.base/java.util.concurrent=ALL-UNNAMED
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* --add-opens java.base/java.lang=ALL-UNNAMED
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* -Djsr166.testImplementationDetails=true
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* -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
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* JSR166TestCase
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* @run junit/othervm/timeout=1000
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* --add-opens java.base/java.util.concurrent=ALL-UNNAMED
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* --add-opens java.base/java.lang=ALL-UNNAMED
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* -Djsr166.testImplementationDetails=true
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* -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
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* -Djava.util.secureRandomSeed=true
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* JSR166TestCase
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*/
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/*
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* @test id=others
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* @summary Remaining test implementation details variant of
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* JSR-166 tck tests apart from ForkJoinPool common
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* parallelism.
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* @build *
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* @modules java.management java.base/jdk.internal.util
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* @run junit/othervm/timeout=1000
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* --add-opens java.base/java.util.concurrent=ALL-UNNAMED
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* --add-opens java.base/java.lang=ALL-UNNAMED
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* -Djsr166.testImplementationDetails=true
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* JSR166TestCase
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*/
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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 java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.lang.management.ManagementFactory;
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import java.lang.management.LockInfo;
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import java.lang.management.ThreadInfo;
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import java.lang.management.ThreadMXBean;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Method;
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import java.lang.reflect.Modifier;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.Date;
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import java.util.Deque;
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import java.util.Enumeration;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.NoSuchElementException;
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import java.util.PropertyPermission;
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import java.util.Queue;
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import java.util.Set;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.Callable;
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import java.util.concurrent.CancellationException;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.CyclicBarrier;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.Executor;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.ForkJoinPool;
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import java.util.concurrent.Future;
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import java.util.concurrent.FutureTask;
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import java.util.concurrent.RecursiveAction;
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import java.util.concurrent.RecursiveTask;
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import java.util.concurrent.RejectedExecutionException;
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import java.util.concurrent.RejectedExecutionHandler;
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import java.util.concurrent.Semaphore;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.ScheduledFuture;
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import java.util.concurrent.SynchronousQueue;
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import java.util.concurrent.ThreadFactory;
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import java.util.concurrent.ThreadLocalRandom;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.TimeoutException;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicReference;
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import java.util.regex.Pattern;
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import junit.framework.Test;
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import junit.framework.TestCase;
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import junit.framework.TestResult;
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import junit.framework.TestSuite;
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/**
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* Base class for JSR166 Junit TCK tests. Defines some constants,
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* utility methods and classes, as well as a simple framework for
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* helping to make sure that assertions failing in generated threads
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* cause the associated test that generated them to itself fail (which
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* JUnit does not otherwise arrange). The rules for creating such
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* tests are:
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*
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* <ol>
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*
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* <li>All code not running in the main test thread (manually spawned threads
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* or the common fork join pool) must be checked for failure (and completion!).
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* Mechanisms that can be used to ensure this are:
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* <ol>
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* <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch
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* that the task completed normally, which is checked before returning from
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* the test method in the main thread.
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* <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue},
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* or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.)
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* Only the most typically used JUnit assertion methods are defined
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* this way, but enough to live with.
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* <li>Recording failure explicitly using {@link #threadUnexpectedException}
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* or {@link #threadRecordFailure}.
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* <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above.
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* </ol>
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*
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* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
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* to invoke {@code super.setUp} and {@code super.tearDown} within
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* them. These methods are used to clear and check for thread
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* assertion failures.
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*
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* <li>All delays and timeouts must use one of the constants {@code
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* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
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* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
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* discriminable from zero time, and always allows enough time for the
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* small amounts of computation (creating a thread, calling a few
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* methods, etc) needed to reach a timeout point. Similarly, a SMALL
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* is always discriminable as larger than SHORT and smaller than
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* MEDIUM. And so on. These constants are set to conservative values,
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* but even so, if there is ever any doubt, they can all be increased
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* in one spot to rerun tests on slower platforms.
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*
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* Class Item is used for elements of collections and related
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* purposes. Many tests rely on their keys being equal to ints. To
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* check these, methods mustEqual, mustContain, etc adapt the JUnit
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* assert methods to intercept ints.
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*
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* <li>All threads generated must be joined inside each test case
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* method (or {@code fail} to do so) before returning from the
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* method. The {@code joinPool} method can be used to do this when
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* using Executors.
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*
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* </ol>
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*
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* <p><b>Other notes</b>
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* <ul>
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*
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* <li>Usually, there is one testcase method per JSR166 method
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* covering "normal" operation, and then as many exception-testing
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* methods as there are exceptions the method can throw. Sometimes
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* there are multiple tests per JSR166 method when the different
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* "normal" behaviors differ significantly. And sometimes testcases
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* cover multiple methods when they cannot be tested in isolation.
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*
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* <li>The documentation style for testcases is to provide as javadoc
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* a simple sentence or two describing the property that the testcase
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* method purports to test. The javadocs do not say anything about how
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* the property is tested. To find out, read the code.
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*
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* <li>These tests are "conformance tests", and do not attempt to
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* test throughput, latency, scalability or other performance factors
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* (see the separate "jtreg" tests for a set intended to check these
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* for the most central aspects of functionality.) So, most tests use
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* the smallest sensible numbers of threads, collection sizes, etc
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* needed to check basic conformance.
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*
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* <li>The test classes currently do not declare inclusion in
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* any particular package to simplify things for people integrating
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* them in TCK test suites.
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*
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* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
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* runs all JSR166 unit tests.
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*
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* </ul>
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*/
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public class JSR166TestCase extends TestCase {
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protected static final boolean expensiveTests =
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Boolean.getBoolean("jsr166.expensiveTests");
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/**
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* If true, also run tests that are not part of the official tck
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* because they test unspecified implementation details.
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*/
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protected static final boolean testImplementationDetails =
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Boolean.getBoolean("jsr166.testImplementationDetails");
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/**
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* If true, report on stdout all "slow" tests, that is, ones that
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* take more than profileThreshold milliseconds to execute.
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*/
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private static final boolean profileTests =
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Boolean.getBoolean("jsr166.profileTests");
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/**
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* The number of milliseconds that tests are permitted for
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* execution without being reported, when profileTests is set.
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*/
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private static final long profileThreshold =
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Long.getLong("jsr166.profileThreshold", 100);
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/**
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* The number of repetitions per test (for tickling rare bugs).
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*/
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private static final int runsPerTest =
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Integer.getInteger("jsr166.runsPerTest", 1);
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/**
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* The number of repetitions of the test suite (for finding leaks?).
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*/
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private static final int suiteRuns =
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Integer.getInteger("jsr166.suiteRuns", 1);
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/**
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* Returns the value of the system property, or NaN if not defined.
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*/
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private static float systemPropertyValue(String name) {
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String floatString = System.getProperty(name);
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if (floatString == null)
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return Float.NaN;
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try {
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return Float.parseFloat(floatString);
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} catch (NumberFormatException ex) {
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throw new IllegalArgumentException(
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String.format("Bad float value in system property %s=%s",
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name, floatString));
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}
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}
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private static final ThreadMXBean THREAD_MXBEAN
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= ManagementFactory.getThreadMXBean();
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/**
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* The scaling factor to apply to standard delays used in tests.
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* May be initialized from any of:
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* - the "jsr166.delay.factor" system property
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* - the "test.timeout.factor" system property (as used by jtreg)
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* See: https://openjdk.org/jtreg/tag-spec.html
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* - hard-coded fuzz factor when using a known slowpoke VM
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*/
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private static final float delayFactor = delayFactor();
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private static float delayFactor() {
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float x;
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if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
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return x;
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if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
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return x;
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String prop = System.getProperty("java.vm.version");
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if (prop != null && prop.matches(".*debug.*"))
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return 4.0f; // How much slower is fastdebug than product?!
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return 1.0f;
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}
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public JSR166TestCase() { super(); }
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public JSR166TestCase(String name) { super(name); }
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/**
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* A filter for tests to run, matching strings of the form
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* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
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* Usefully combined with jsr166.runsPerTest.
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*/
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private static final Pattern methodFilter = methodFilter();
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private static Pattern methodFilter() {
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String regex = System.getProperty("jsr166.methodFilter");
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return (regex == null) ? null : Pattern.compile(regex);
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}
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// Instrumentation to debug very rare, but very annoying hung test runs.
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static volatile TestCase currentTestCase;
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// static volatile int currentRun = 0;
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static {
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Runnable wedgedTestDetector = new Runnable() { public void run() {
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// Avoid spurious reports with enormous runsPerTest.
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// A single test case run should never take more than 1 second.
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// But let's cap it at the high end too ...
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final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1)
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* Math.max((int) delayFactor, 1);
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final int timeoutMinutes = Math.min(15, timeoutMinutesMin);
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for (TestCase lastTestCase = currentTestCase;;) {
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try { MINUTES.sleep(timeoutMinutes); }
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catch (InterruptedException unexpected) { break; }
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if (lastTestCase == currentTestCase) {
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System.err.printf(
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"Looks like we're stuck running test: %s%n",
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lastTestCase);
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// System.err.printf(
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// "Looks like we're stuck running test: %s (%d/%d)%n",
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// lastTestCase, currentRun, runsPerTest);
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// System.err.println("availableProcessors=" +
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// Runtime.getRuntime().availableProcessors());
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// System.err.printf("cpu model = %s%n", cpuModel());
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dumpTestThreads();
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// one stack dump is probably enough; more would be spam
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break;
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}
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lastTestCase = currentTestCase;
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}}};
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Thread thread = new Thread(wedgedTestDetector, "WedgedTestDetector");
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thread.setDaemon(true);
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thread.start();
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}
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// public static String cpuModel() {
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// try {
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// java.util.regex.Matcher matcher
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// = Pattern.compile("model name\\s*: (.*)")
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// .matcher(new String(
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// java.nio.file.Files.readAllBytes(
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// java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
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// matcher.find();
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// return matcher.group(1);
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// } catch (Exception ex) { return null; }
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// }
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public void runBare() throws Throwable {
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currentTestCase = this;
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if (methodFilter == null
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|| methodFilter.matcher(toString()).find())
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super.runBare();
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}
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protected void runTest() throws Throwable {
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for (int i = 0; i < runsPerTest; i++) {
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// currentRun = i;
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if (profileTests)
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runTestProfiled();
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else
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super.runTest();
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}
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}
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protected void runTestProfiled() throws Throwable {
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for (int i = 0; i < 2; i++) {
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long startTime = System.nanoTime();
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super.runTest();
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long elapsedMillis = millisElapsedSince(startTime);
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if (elapsedMillis < profileThreshold)
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break;
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// Never report first run of any test; treat it as a
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// warmup run, notably to trigger all needed classloading,
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if (i > 0)
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System.out.printf("%s: %d%n", toString(), elapsedMillis);
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}
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}
|
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|
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/**
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* Runs all JSR166 unit tests using junit.textui.TestRunner.
|
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*/
|
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public static void main(String[] args) {
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main(suite(), args);
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}
|
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|
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static class PithyResultPrinter extends junit.textui.ResultPrinter {
|
|
PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
|
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long runTime;
|
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public void startTest(Test test) {}
|
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protected void printHeader(long runTime) {
|
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this.runTime = runTime; // defer printing for later
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}
|
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protected void printFooter(TestResult result) {
|
|
if (result.wasSuccessful()) {
|
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getWriter().println("OK (" + result.runCount() + " tests)"
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+ " Time: " + elapsedTimeAsString(runTime));
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|
} else {
|
|
getWriter().println("Time: " + elapsedTimeAsString(runTime));
|
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super.printFooter(result);
|
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}
|
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}
|
|
}
|
|
|
|
/**
|
|
* Returns a TestRunner that doesn't bother with unnecessary
|
|
* fluff, like printing a "." for each test case.
|
|
*/
|
|
static junit.textui.TestRunner newPithyTestRunner() {
|
|
junit.textui.TestRunner runner = new junit.textui.TestRunner();
|
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runner.setPrinter(new PithyResultPrinter(System.out));
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return runner;
|
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}
|
|
|
|
/**
|
|
* Runs all unit tests in the given test suite.
|
|
* Actual behavior influenced by jsr166.* system properties.
|
|
*/
|
|
@SuppressWarnings("removal")
|
|
static void main(Test suite, String[] args) {
|
|
for (int i = 0; i < suiteRuns; i++) {
|
|
TestResult result = newPithyTestRunner().doRun(suite);
|
|
if (!result.wasSuccessful())
|
|
System.exit(1);
|
|
System.gc();
|
|
System.runFinalization();
|
|
}
|
|
}
|
|
|
|
public static TestSuite newTestSuite(Object... suiteOrClasses) {
|
|
TestSuite suite = new TestSuite();
|
|
for (Object suiteOrClass : suiteOrClasses) {
|
|
if (suiteOrClass instanceof TestSuite)
|
|
suite.addTest((TestSuite) suiteOrClass);
|
|
else if (suiteOrClass instanceof Class)
|
|
suite.addTest(new TestSuite((Class<?>) suiteOrClass));
|
|
else
|
|
throw new ClassCastException("not a test suite or class");
|
|
}
|
|
return suite;
|
|
}
|
|
|
|
public static void addNamedTestClasses(TestSuite suite,
|
|
String... testClassNames) {
|
|
for (String testClassName : testClassNames) {
|
|
try {
|
|
Class<?> testClass = Class.forName(testClassName);
|
|
Method m = testClass.getDeclaredMethod("suite");
|
|
suite.addTest(newTestSuite((Test)m.invoke(null)));
|
|
} catch (ReflectiveOperationException e) {
|
|
throw new AssertionError("Missing test class", e);
|
|
}
|
|
}
|
|
}
|
|
|
|
public static final double JAVA_CLASS_VERSION;
|
|
public static final String JAVA_SPECIFICATION_VERSION;
|
|
static {
|
|
JAVA_CLASS_VERSION = Double.valueOf(System.getProperty("java.class.version"));
|
|
JAVA_SPECIFICATION_VERSION = System.getProperty("java.specification.version");
|
|
}
|
|
|
|
public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
|
|
public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
|
|
public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
|
|
public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; }
|
|
public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
|
|
public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; }
|
|
public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; }
|
|
public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; }
|
|
public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; }
|
|
public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; }
|
|
public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; }
|
|
public static boolean atLeastJava19() { return JAVA_CLASS_VERSION >= 63.0; }
|
|
public static boolean atLeastJava20() { return JAVA_CLASS_VERSION >= 64.0; }
|
|
|
|
/**
|
|
* Collects all JSR166 unit tests as one suite.
|
|
*/
|
|
public static Test suite() {
|
|
// Java7+ test classes
|
|
TestSuite suite = newTestSuite(
|
|
ForkJoinPoolTest.suite(),
|
|
ForkJoinTaskTest.suite(),
|
|
RecursiveActionTest.suite(),
|
|
RecursiveTaskTest.suite(),
|
|
LinkedTransferQueueTest.suite(),
|
|
PhaserTest.suite(),
|
|
ThreadLocalRandomTest.suite(),
|
|
AbstractExecutorServiceTest.suite(),
|
|
AbstractQueueTest.suite(),
|
|
AbstractQueuedSynchronizerTest.suite(),
|
|
AbstractQueuedLongSynchronizerTest.suite(),
|
|
ArrayBlockingQueueTest.suite(),
|
|
ArrayDequeTest.suite(),
|
|
ArrayListTest.suite(),
|
|
AtomicBooleanTest.suite(),
|
|
AtomicIntegerArrayTest.suite(),
|
|
AtomicIntegerFieldUpdaterTest.suite(),
|
|
AtomicIntegerTest.suite(),
|
|
AtomicLongArrayTest.suite(),
|
|
AtomicLongFieldUpdaterTest.suite(),
|
|
AtomicLongTest.suite(),
|
|
AtomicMarkableReferenceTest.suite(),
|
|
AtomicReferenceArrayTest.suite(),
|
|
AtomicReferenceFieldUpdaterTest.suite(),
|
|
AtomicReferenceTest.suite(),
|
|
AtomicStampedReferenceTest.suite(),
|
|
ConcurrentHashMapTest.suite(),
|
|
ConcurrentLinkedDequeTest.suite(),
|
|
ConcurrentLinkedQueueTest.suite(),
|
|
ConcurrentSkipListMapTest.suite(),
|
|
ConcurrentSkipListSubMapTest.suite(),
|
|
ConcurrentSkipListSetTest.suite(),
|
|
ConcurrentSkipListSubSetTest.suite(),
|
|
CopyOnWriteArrayListTest.suite(),
|
|
CopyOnWriteArraySetTest.suite(),
|
|
CountDownLatchTest.suite(),
|
|
CountedCompleterTest.suite(),
|
|
CyclicBarrierTest.suite(),
|
|
DelayQueueTest.suite(),
|
|
EntryTest.suite(),
|
|
ExchangerTest.suite(),
|
|
ExecutorsTest.suite(),
|
|
ExecutorCompletionServiceTest.suite(),
|
|
FutureTaskTest.suite(),
|
|
HashtableTest.suite(),
|
|
LinkedBlockingDequeTest.suite(),
|
|
LinkedBlockingQueueTest.suite(),
|
|
LinkedListTest.suite(),
|
|
LockSupportTest.suite(),
|
|
PriorityBlockingQueueTest.suite(),
|
|
PriorityQueueTest.suite(),
|
|
ReentrantLockTest.suite(),
|
|
ReentrantReadWriteLockTest.suite(),
|
|
ScheduledExecutorTest.suite(),
|
|
ScheduledExecutorSubclassTest.suite(),
|
|
SemaphoreTest.suite(),
|
|
SynchronousQueueTest.suite(),
|
|
ThreadLocalTest.suite(),
|
|
ThreadPoolExecutorTest.suite(),
|
|
ThreadPoolExecutorSubclassTest.suite(),
|
|
ThreadTest.suite(),
|
|
TimeUnitTest.suite(),
|
|
TreeMapTest.suite(),
|
|
TreeSetTest.suite(),
|
|
TreeSubMapTest.suite(),
|
|
TreeSubSetTest.suite(),
|
|
VectorTest.suite());
|
|
|
|
// Java8+ test classes
|
|
if (atLeastJava8()) {
|
|
String[] java8TestClassNames = {
|
|
"ArrayDeque8Test",
|
|
"Atomic8Test",
|
|
"CompletableFutureTest",
|
|
"ConcurrentHashMap8Test",
|
|
"CountedCompleter8Test",
|
|
"DoubleAccumulatorTest",
|
|
"DoubleAdderTest",
|
|
"ForkJoinPool8Test",
|
|
"ForkJoinTask8Test",
|
|
"HashMapTest",
|
|
"LinkedBlockingDeque8Test",
|
|
"LinkedBlockingQueue8Test",
|
|
"LinkedHashMapTest",
|
|
"LongAccumulatorTest",
|
|
"LongAdderTest",
|
|
"SplittableRandomTest",
|
|
"StampedLockTest",
|
|
"SubmissionPublisherTest",
|
|
"ThreadLocalRandom8Test",
|
|
"TimeUnit8Test",
|
|
};
|
|
addNamedTestClasses(suite, java8TestClassNames);
|
|
}
|
|
|
|
// Java9+ test classes
|
|
if (atLeastJava9()) {
|
|
String[] java9TestClassNames = {
|
|
"AtomicBoolean9Test",
|
|
"AtomicInteger9Test",
|
|
"AtomicIntegerArray9Test",
|
|
"AtomicLong9Test",
|
|
"AtomicLongArray9Test",
|
|
"AtomicReference9Test",
|
|
"AtomicReferenceArray9Test",
|
|
"ExecutorCompletionService9Test",
|
|
"ForkJoinPool9Test",
|
|
};
|
|
addNamedTestClasses(suite, java9TestClassNames);
|
|
}
|
|
|
|
if (atLeastJava19()) {
|
|
String[] java19TestClassNames = {
|
|
"ForkJoinPool19Test",
|
|
};
|
|
addNamedTestClasses(suite, java19TestClassNames);
|
|
}
|
|
|
|
if (atLeastJava20()) {
|
|
String[] java20TestClassNames = {
|
|
"ForkJoinPool20Test",
|
|
"SynchronousQueue20Test",
|
|
};
|
|
addNamedTestClasses(suite, java20TestClassNames);
|
|
}
|
|
|
|
return suite;
|
|
}
|
|
|
|
/** Returns list of junit-style test method names in given class. */
|
|
public static ArrayList<String> testMethodNames(Class<?> testClass) {
|
|
Method[] methods = testClass.getDeclaredMethods();
|
|
ArrayList<String> names = new ArrayList<>(methods.length);
|
|
for (Method method : methods) {
|
|
if (method.getName().startsWith("test")
|
|
&& Modifier.isPublic(method.getModifiers())
|
|
// method.getParameterCount() requires jdk8+
|
|
&& method.getParameterTypes().length == 0) {
|
|
names.add(method.getName());
|
|
}
|
|
}
|
|
return names;
|
|
}
|
|
|
|
/**
|
|
* Returns junit-style testSuite for the given test class, but
|
|
* parameterized by passing extra data to each test.
|
|
*/
|
|
public static <ExtraData> Test parameterizedTestSuite
|
|
(Class<? extends JSR166TestCase> testClass,
|
|
Class<ExtraData> dataClass,
|
|
ExtraData data) {
|
|
try {
|
|
TestSuite suite = new TestSuite();
|
|
Constructor c =
|
|
testClass.getDeclaredConstructor(dataClass, String.class);
|
|
for (String methodName : testMethodNames(testClass))
|
|
suite.addTest((Test) c.newInstance(data, methodName));
|
|
return suite;
|
|
} catch (ReflectiveOperationException e) {
|
|
throw new AssertionError(e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns junit-style testSuite for the jdk8 extension of the
|
|
* given test class, but parameterized by passing extra data to
|
|
* each test. Uses reflection to allow compilation in jdk7.
|
|
*/
|
|
public static <ExtraData> Test jdk8ParameterizedTestSuite
|
|
(Class<? extends JSR166TestCase> testClass,
|
|
Class<ExtraData> dataClass,
|
|
ExtraData data) {
|
|
if (atLeastJava8()) {
|
|
String name = testClass.getName();
|
|
String name8 = name.replaceAll("Test$", "8Test");
|
|
if (name.equals(name8)) throw new AssertionError(name);
|
|
try {
|
|
return (Test)
|
|
Class.forName(name8)
|
|
.getMethod("testSuite", dataClass)
|
|
.invoke(null, data);
|
|
} catch (ReflectiveOperationException e) {
|
|
throw new AssertionError(e);
|
|
}
|
|
} else {
|
|
return new TestSuite();
|
|
}
|
|
}
|
|
|
|
// Delays for timing-dependent tests, in milliseconds.
|
|
|
|
public static long SHORT_DELAY_MS;
|
|
public static long SMALL_DELAY_MS;
|
|
public static long MEDIUM_DELAY_MS;
|
|
public static long LONG_DELAY_MS;
|
|
|
|
/**
|
|
* A delay significantly longer than LONG_DELAY_MS.
|
|
* Use this in a thread that is waited for via awaitTermination(Thread).
|
|
*/
|
|
public static long LONGER_DELAY_MS;
|
|
|
|
private static final long RANDOM_TIMEOUT;
|
|
private static final long RANDOM_EXPIRED_TIMEOUT;
|
|
private static final TimeUnit RANDOM_TIMEUNIT;
|
|
static {
|
|
ThreadLocalRandom rnd = ThreadLocalRandom.current();
|
|
long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
|
|
RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
|
|
RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
|
|
TimeUnit[] timeUnits = TimeUnit.values();
|
|
RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
|
|
}
|
|
|
|
/**
|
|
* Returns a timeout for use when any value at all will do.
|
|
*/
|
|
static long randomTimeout() { return RANDOM_TIMEOUT; }
|
|
|
|
/**
|
|
* Returns a timeout that means "no waiting", i.e. not positive.
|
|
*/
|
|
static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
|
|
|
|
/**
|
|
* Returns a random non-null TimeUnit.
|
|
*/
|
|
static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
|
|
|
|
/**
|
|
* Returns a random boolean; a "coin flip".
|
|
*/
|
|
static boolean randomBoolean() {
|
|
return ThreadLocalRandom.current().nextBoolean();
|
|
}
|
|
|
|
/**
|
|
* Returns a random element from given choices.
|
|
*/
|
|
<T> T chooseRandomly(List<T> choices) {
|
|
return choices.get(ThreadLocalRandom.current().nextInt(choices.size()));
|
|
}
|
|
|
|
/**
|
|
* Returns a random element from given choices.
|
|
*/
|
|
@SuppressWarnings("unchecked")
|
|
<T> T chooseRandomly(T... choices) {
|
|
return choices[ThreadLocalRandom.current().nextInt(choices.length)];
|
|
}
|
|
|
|
/**
|
|
* Returns the shortest timed delay. This can be scaled up for
|
|
* slow machines using the jsr166.delay.factor system property,
|
|
* or via jtreg's -timeoutFactor: flag.
|
|
* https://openjdk.org/jtreg/command-help.html
|
|
*/
|
|
protected long getShortDelay() {
|
|
return (long) (50 * delayFactor);
|
|
}
|
|
|
|
/**
|
|
* Sets delays as multiples of SHORT_DELAY.
|
|
*/
|
|
protected void setDelays() {
|
|
SHORT_DELAY_MS = getShortDelay();
|
|
SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
|
|
MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
|
|
LONG_DELAY_MS = SHORT_DELAY_MS * 200;
|
|
LONGER_DELAY_MS = 2 * LONG_DELAY_MS;
|
|
}
|
|
|
|
private static final long TIMEOUT_DELAY_MS
|
|
= (long) (12.0 * Math.cbrt(delayFactor));
|
|
|
|
/**
|
|
* Returns a timeout in milliseconds to be used in tests that verify
|
|
* that operations block or time out. We want this to be longer
|
|
* than the OS scheduling quantum, but not too long, so don't scale
|
|
* linearly with delayFactor; we use "crazy" cube root instead.
|
|
*/
|
|
static long timeoutMillis() {
|
|
return TIMEOUT_DELAY_MS;
|
|
}
|
|
|
|
/**
|
|
* Returns a new Date instance representing a time at least
|
|
* delayMillis milliseconds in the future.
|
|
*/
|
|
Date delayedDate(long delayMillis) {
|
|
// Add 1 because currentTimeMillis is known to round into the past.
|
|
return new Date(System.currentTimeMillis() + delayMillis + 1);
|
|
}
|
|
|
|
/**
|
|
* The first exception encountered if any threadAssertXXX method fails.
|
|
*/
|
|
private final AtomicReference<Throwable> threadFailure
|
|
= new AtomicReference<>(null);
|
|
|
|
/**
|
|
* Records an exception so that it can be rethrown later in the test
|
|
* harness thread, triggering a test case failure. Only the first
|
|
* failure is recorded; subsequent calls to this method from within
|
|
* the same test have no effect.
|
|
*/
|
|
public void threadRecordFailure(Throwable t) {
|
|
System.err.println(t);
|
|
if (threadFailure.compareAndSet(null, t))
|
|
dumpTestThreads();
|
|
}
|
|
|
|
public void setUp() {
|
|
setDelays();
|
|
}
|
|
|
|
void tearDownFail(String format, Object... args) {
|
|
String msg = toString() + ": " + String.format(format, args);
|
|
System.err.println(msg);
|
|
dumpTestThreads();
|
|
throw new AssertionError(msg);
|
|
}
|
|
|
|
/**
|
|
* Extra checks that get done for all test cases.
|
|
*
|
|
* Triggers test case failure if any thread assertions have failed,
|
|
* by rethrowing, in the test harness thread, any exception recorded
|
|
* earlier by threadRecordFailure.
|
|
*
|
|
* Triggers test case failure if interrupt status is set in the main thread.
|
|
*/
|
|
public void tearDown() throws Exception {
|
|
Throwable t = threadFailure.getAndSet(null);
|
|
if (t != null) {
|
|
if (t instanceof Error)
|
|
throw (Error) t;
|
|
else if (t instanceof RuntimeException)
|
|
throw (RuntimeException) t;
|
|
else if (t instanceof Exception)
|
|
throw (Exception) t;
|
|
else
|
|
throw new AssertionError(t.toString(), t);
|
|
}
|
|
|
|
if (Thread.interrupted())
|
|
tearDownFail("interrupt status set in main thread");
|
|
|
|
checkForkJoinPoolThreadLeaks();
|
|
}
|
|
|
|
/**
|
|
* Finds missing PoolCleaners
|
|
*/
|
|
void checkForkJoinPoolThreadLeaks() throws InterruptedException {
|
|
Thread[] survivors = new Thread[7];
|
|
int count = Thread.enumerate(survivors);
|
|
for (int i = 0; i < count; i++) {
|
|
Thread thread = survivors[i];
|
|
String name = thread.getName();
|
|
if (name.startsWith("ForkJoinPool-")) {
|
|
// give thread some time to terminate
|
|
thread.join(LONG_DELAY_MS);
|
|
if (thread.isAlive())
|
|
tearDownFail("Found leaked ForkJoinPool thread thread=%s",
|
|
thread);
|
|
}
|
|
}
|
|
|
|
if (!ForkJoinPool.commonPool()
|
|
.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
|
|
tearDownFail("ForkJoin common pool thread stuck");
|
|
}
|
|
|
|
/**
|
|
* Just like fail(reason), but additionally recording (using
|
|
* threadRecordFailure) any AssertionError thrown, so that the
|
|
* current testcase will fail.
|
|
*/
|
|
public void threadFail(String reason) {
|
|
try {
|
|
fail(reason);
|
|
} catch (AssertionError fail) {
|
|
threadRecordFailure(fail);
|
|
throw fail;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Just like assertTrue(b), but additionally recording (using
|
|
* threadRecordFailure) any AssertionError thrown, so that the
|
|
* current testcase will fail.
|
|
*/
|
|
public void threadAssertTrue(boolean b) {
|
|
try {
|
|
assertTrue(b);
|
|
} catch (AssertionError fail) {
|
|
threadRecordFailure(fail);
|
|
throw fail;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Just like assertFalse(b), but additionally recording (using
|
|
* threadRecordFailure) any AssertionError thrown, so that the
|
|
* current testcase will fail.
|
|
*/
|
|
public void threadAssertFalse(boolean b) {
|
|
try {
|
|
assertFalse(b);
|
|
} catch (AssertionError fail) {
|
|
threadRecordFailure(fail);
|
|
throw fail;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Just like assertNull(x), but additionally recording (using
|
|
* threadRecordFailure) any AssertionError thrown, so that the
|
|
* current testcase will fail.
|
|
*/
|
|
public void threadAssertNull(Object x) {
|
|
try {
|
|
assertNull(x);
|
|
} catch (AssertionError fail) {
|
|
threadRecordFailure(fail);
|
|
throw fail;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Just like assertEquals(x, y), but additionally recording (using
|
|
* threadRecordFailure) any AssertionError thrown, so that the
|
|
* current testcase will fail.
|
|
*/
|
|
public void threadAssertEquals(long x, long y) {
|
|
try {
|
|
assertEquals(x, y);
|
|
} catch (AssertionError fail) {
|
|
threadRecordFailure(fail);
|
|
throw fail;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Just like assertEquals(x, y), but additionally recording (using
|
|
* threadRecordFailure) any AssertionError thrown, so that the
|
|
* current testcase will fail.
|
|
*/
|
|
public void threadAssertEquals(Object x, Object y) {
|
|
try {
|
|
assertEquals(x, y);
|
|
} catch (AssertionError fail) {
|
|
threadRecordFailure(fail);
|
|
throw fail;
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Just like assertSame(x, y), but additionally recording (using
|
|
* threadRecordFailure) any AssertionError thrown, so that the
|
|
* current testcase will fail.
|
|
*/
|
|
public void threadAssertSame(Object x, Object y) {
|
|
try {
|
|
assertSame(x, y);
|
|
} catch (AssertionError fail) {
|
|
threadRecordFailure(fail);
|
|
throw fail;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Calls threadFail with message "should throw exception".
|
|
*/
|
|
public void threadShouldThrow() {
|
|
threadFail("should throw exception");
|
|
}
|
|
|
|
/**
|
|
* Calls threadFail with message "should throw" + exceptionName.
|
|
*/
|
|
public void threadShouldThrow(String exceptionName) {
|
|
threadFail("should throw " + exceptionName);
|
|
}
|
|
|
|
/**
|
|
* Records the given exception using {@link #threadRecordFailure},
|
|
* then rethrows the exception, wrapping it in an AssertionError
|
|
* if necessary.
|
|
*/
|
|
public void threadUnexpectedException(Throwable t) {
|
|
threadRecordFailure(t);
|
|
t.printStackTrace();
|
|
if (t instanceof RuntimeException)
|
|
throw (RuntimeException) t;
|
|
else if (t instanceof Error)
|
|
throw (Error) t;
|
|
else
|
|
throw new AssertionError("unexpected exception: " + t, t);
|
|
}
|
|
|
|
/**
|
|
* Delays, via Thread.sleep, for the given millisecond delay, but
|
|
* if the sleep is shorter than specified, may re-sleep or yield
|
|
* until time elapses. Ensures that the given time, as measured
|
|
* by System.nanoTime(), has elapsed.
|
|
*/
|
|
static void delay(long millis) throws InterruptedException {
|
|
long nanos = millis * (1000 * 1000);
|
|
final long wakeupTime = System.nanoTime() + nanos;
|
|
do {
|
|
if (millis > 0L)
|
|
Thread.sleep(millis);
|
|
else // too short to sleep
|
|
Thread.yield();
|
|
nanos = wakeupTime - System.nanoTime();
|
|
millis = nanos / (1000 * 1000);
|
|
} while (nanos >= 0L);
|
|
}
|
|
|
|
/**
|
|
* Allows use of try-with-resources with per-test thread pools.
|
|
*/
|
|
class PoolCleaner implements AutoCloseable {
|
|
private final ExecutorService pool;
|
|
public PoolCleaner(ExecutorService pool) { this.pool = pool; }
|
|
public void close() { joinPool(pool); }
|
|
}
|
|
|
|
/**
|
|
* An extension of PoolCleaner that has an action to release the pool.
|
|
*/
|
|
class PoolCleanerWithReleaser extends PoolCleaner {
|
|
private final Runnable releaser;
|
|
public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
|
|
super(pool);
|
|
this.releaser = releaser;
|
|
}
|
|
public void close() {
|
|
try {
|
|
releaser.run();
|
|
} finally {
|
|
super.close();
|
|
}
|
|
}
|
|
}
|
|
|
|
PoolCleaner cleaner(ExecutorService pool) {
|
|
return new PoolCleaner(pool);
|
|
}
|
|
|
|
PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
|
|
return new PoolCleanerWithReleaser(pool, releaser);
|
|
}
|
|
|
|
PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
|
|
return new PoolCleanerWithReleaser(pool, releaser(latch));
|
|
}
|
|
|
|
Runnable releaser(final CountDownLatch latch) {
|
|
return new Runnable() { public void run() {
|
|
do { latch.countDown(); }
|
|
while (latch.getCount() > 0);
|
|
}};
|
|
}
|
|
|
|
PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
|
|
return new PoolCleanerWithReleaser(pool, releaser(flag));
|
|
}
|
|
|
|
Runnable releaser(final AtomicBoolean flag) {
|
|
return new Runnable() { public void run() { flag.set(true); }};
|
|
}
|
|
|
|
/**
|
|
* Waits out termination of a thread pool or fails doing so.
|
|
*/
|
|
void joinPool(ExecutorService pool) {
|
|
try {
|
|
pool.shutdown();
|
|
if (!pool.awaitTermination(20 * LONG_DELAY_MS, MILLISECONDS)) {
|
|
try {
|
|
threadFail("ExecutorService " + pool +
|
|
" did not terminate in a timely manner");
|
|
} finally {
|
|
// last resort, for the benefit of subsequent tests
|
|
pool.shutdownNow();
|
|
pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
|
|
}
|
|
}
|
|
} catch (SecurityException ok) {
|
|
// Allowed in case test doesn't have privs
|
|
} catch (InterruptedException fail) {
|
|
threadFail("Unexpected InterruptedException");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Like Runnable, but with the freedom to throw anything.
|
|
* junit folks had the same idea:
|
|
* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
|
|
*/
|
|
interface Action { public void run() throws Throwable; }
|
|
|
|
/**
|
|
* Runs all the given actions in parallel, failing if any fail.
|
|
* Useful for running multiple variants of tests that are
|
|
* necessarily individually slow because they must block.
|
|
*/
|
|
void testInParallel(Action ... actions) {
|
|
ExecutorService pool = Executors.newCachedThreadPool();
|
|
try (PoolCleaner cleaner = cleaner(pool)) {
|
|
ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
|
|
for (final Action action : actions)
|
|
futures.add(pool.submit(new CheckedRunnable() {
|
|
public void realRun() throws Throwable { action.run();}}));
|
|
for (Future<?> future : futures)
|
|
try {
|
|
assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
|
|
} catch (ExecutionException ex) {
|
|
threadUnexpectedException(ex.getCause());
|
|
} catch (Exception ex) {
|
|
threadUnexpectedException(ex);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Returns true if thread info might be useful in a thread dump. */
|
|
static boolean threadOfInterest(ThreadInfo info) {
|
|
final String name = info.getThreadName();
|
|
String lockName;
|
|
if (name == null)
|
|
return true;
|
|
if (name.equals("Signal Dispatcher")
|
|
|| name.equals("WedgedTestDetector"))
|
|
return false;
|
|
if (name.equals("Reference Handler")) {
|
|
// Reference Handler stacktrace changed in JDK-8156500
|
|
StackTraceElement[] stackTrace; String methodName;
|
|
if ((stackTrace = info.getStackTrace()) != null
|
|
&& stackTrace.length > 0
|
|
&& (methodName = stackTrace[0].getMethodName()) != null
|
|
&& methodName.equals("waitForReferencePendingList"))
|
|
return false;
|
|
// jdk8 Reference Handler stacktrace
|
|
if ((lockName = info.getLockName()) != null
|
|
&& lockName.startsWith("java.lang.ref"))
|
|
return false;
|
|
}
|
|
if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
|
|
&& (lockName = info.getLockName()) != null
|
|
&& lockName.startsWith("java.lang.ref"))
|
|
return false;
|
|
if (name.startsWith("ForkJoinPool.commonPool-worker")
|
|
&& (lockName = info.getLockName()) != null
|
|
&& lockName.startsWith("java.util.concurrent.ForkJoinPool"))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* A debugging tool to print stack traces of most threads, as jstack does.
|
|
* Uninteresting threads are filtered out.
|
|
*/
|
|
@SuppressWarnings("removal")
|
|
static void dumpTestThreads() {
|
|
System.err.println("------ stacktrace dump start ------");
|
|
for (ThreadInfo info : THREAD_MXBEAN.dumpAllThreads(true, true))
|
|
if (threadOfInterest(info))
|
|
System.err.print(info);
|
|
System.err.println("------ stacktrace dump end ------");
|
|
}
|
|
|
|
/**
|
|
* Checks that thread eventually enters the expected blocked thread state.
|
|
*/
|
|
void assertThreadBlocks(Thread thread, Thread.State expected) {
|
|
// always sleep at least 1 ms, with high probability avoiding
|
|
// transitory states
|
|
for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
|
|
try { delay(1); }
|
|
catch (InterruptedException fail) {
|
|
throw new AssertionError("Unexpected InterruptedException", fail);
|
|
}
|
|
Thread.State s = thread.getState();
|
|
if (s == expected)
|
|
return;
|
|
else if (s == Thread.State.TERMINATED)
|
|
fail("Unexpected thread termination");
|
|
}
|
|
fail("timed out waiting for thread to enter thread state " + expected);
|
|
}
|
|
|
|
/**
|
|
* Returns the thread's blocker's class name, if any, else null.
|
|
*/
|
|
String blockerClassName(Thread thread) {
|
|
ThreadInfo threadInfo; LockInfo lockInfo;
|
|
if ((threadInfo = THREAD_MXBEAN.getThreadInfo(thread.getId(), 0)) != null
|
|
&& (lockInfo = threadInfo.getLockInfo()) != null)
|
|
return lockInfo.getClassName();
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Checks that future.get times out, with the default timeout of
|
|
* {@code timeoutMillis()}.
|
|
*/
|
|
void assertFutureTimesOut(Future<?> future) {
|
|
assertFutureTimesOut(future, timeoutMillis());
|
|
}
|
|
|
|
/**
|
|
* Checks that future.get times out, with the given millisecond timeout.
|
|
*/
|
|
void assertFutureTimesOut(Future<?> future, long timeoutMillis) {
|
|
long startTime = System.nanoTime();
|
|
try {
|
|
future.get(timeoutMillis, MILLISECONDS);
|
|
shouldThrow();
|
|
} catch (TimeoutException success) {
|
|
} catch (Exception fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
|
|
assertFalse(future.isDone());
|
|
}
|
|
|
|
/**
|
|
* Fails with message "should throw exception".
|
|
*/
|
|
public void shouldThrow() {
|
|
fail("Should throw exception");
|
|
}
|
|
|
|
/**
|
|
* Fails with message "should throw " + exceptionName.
|
|
*/
|
|
public void shouldThrow(String exceptionName) {
|
|
fail("Should throw " + exceptionName);
|
|
}
|
|
|
|
/**
|
|
* The maximum number of consecutive spurious wakeups we should
|
|
* tolerate (from APIs like LockSupport.park) before failing a test.
|
|
*/
|
|
static final int MAX_SPURIOUS_WAKEUPS = 10;
|
|
|
|
/**
|
|
* The number of elements to place in collections, arrays, etc.
|
|
* Must be at least ten;
|
|
*/
|
|
public static final int SIZE = 32;
|
|
|
|
static Item[] seqItems(int size) {
|
|
Item[] s = new Item[size];
|
|
for (int i = 0; i < size; ++i)
|
|
s[i] = new Item(i);
|
|
return s;
|
|
}
|
|
static Item[] negativeSeqItems(int size) {
|
|
Item[] s = new Item[size];
|
|
for (int i = 0; i < size; ++i)
|
|
s[i] = new Item(-i);
|
|
return s;
|
|
}
|
|
|
|
// Many tests rely on defaultItems all being sequential nonnegative
|
|
public static final Item[] defaultItems = seqItems(SIZE);
|
|
|
|
static Item itemFor(int i) { // check cache for defaultItems
|
|
Item[] items = defaultItems;
|
|
return (i >= 0 && i < items.length) ? items[i] : new Item(i);
|
|
}
|
|
|
|
public static final Item zero = defaultItems[0];
|
|
public static final Item one = defaultItems[1];
|
|
public static final Item two = defaultItems[2];
|
|
public static final Item three = defaultItems[3];
|
|
public static final Item four = defaultItems[4];
|
|
public static final Item five = defaultItems[5];
|
|
public static final Item six = defaultItems[6];
|
|
public static final Item seven = defaultItems[7];
|
|
public static final Item eight = defaultItems[8];
|
|
public static final Item nine = defaultItems[9];
|
|
public static final Item ten = defaultItems[10];
|
|
|
|
public static final Item[] negativeItems = negativeSeqItems(SIZE);
|
|
|
|
public static final Item minusOne = negativeItems[1];
|
|
public static final Item minusTwo = negativeItems[2];
|
|
public static final Item minusThree = negativeItems[3];
|
|
public static final Item minusFour = negativeItems[4];
|
|
public static final Item minusFive = negativeItems[5];
|
|
public static final Item minusSix = negativeItems[6];
|
|
public static final Item minusSeven = negativeItems[7];
|
|
public static final Item minusEight = negativeItems[8];
|
|
public static final Item minusNone = negativeItems[9];
|
|
public static final Item minusTen = negativeItems[10];
|
|
|
|
// elements expected to be missing
|
|
public static final Item fortytwo = new Item(42);
|
|
public static final Item eightysix = new Item(86);
|
|
public static final Item ninetynine = new Item(99);
|
|
|
|
// Interop across Item, int
|
|
|
|
static void mustEqual(Item x, Item y) {
|
|
if (x != y)
|
|
assertEquals(x.value, y.value);
|
|
}
|
|
static void mustEqual(Item x, int y) {
|
|
assertEquals(x.value, y);
|
|
}
|
|
static void mustEqual(int x, Item y) {
|
|
assertEquals(x, y.value);
|
|
}
|
|
static void mustEqual(int x, int y) {
|
|
assertEquals(x, y);
|
|
}
|
|
static void mustEqual(Object x, Object y) {
|
|
if (x != y)
|
|
assertEquals(x, y);
|
|
}
|
|
static void mustEqual(int x, Object y) {
|
|
if (y instanceof Item)
|
|
assertEquals(x, ((Item)y).value);
|
|
else fail();
|
|
}
|
|
static void mustEqual(Object x, int y) {
|
|
if (x instanceof Item)
|
|
assertEquals(((Item)x).value, y);
|
|
else fail();
|
|
}
|
|
static void mustEqual(boolean x, boolean y) {
|
|
assertEquals(x, y);
|
|
}
|
|
static void mustEqual(long x, long y) {
|
|
assertEquals(x, y);
|
|
}
|
|
static void mustEqual(double x, double y) {
|
|
assertEquals(x, y);
|
|
}
|
|
static void mustContain(Collection<Item> c, int i) {
|
|
assertTrue(c.contains(itemFor(i)));
|
|
}
|
|
static void mustContain(Collection<Item> c, Item i) {
|
|
assertTrue(c.contains(i));
|
|
}
|
|
static void mustNotContain(Collection<Item> c, int i) {
|
|
assertFalse(c.contains(itemFor(i)));
|
|
}
|
|
static void mustNotContain(Collection<Item> c, Item i) {
|
|
assertFalse(c.contains(i));
|
|
}
|
|
static void mustRemove(Collection<Item> c, int i) {
|
|
assertTrue(c.remove(itemFor(i)));
|
|
}
|
|
static void mustRemove(Collection<Item> c, Item i) {
|
|
assertTrue(c.remove(i));
|
|
}
|
|
static void mustNotRemove(Collection<Item> c, int i) {
|
|
assertFalse(c.remove(itemFor(i)));
|
|
}
|
|
static void mustNotRemove(Collection<Item> c, Item i) {
|
|
assertFalse(c.remove(i));
|
|
}
|
|
static void mustAdd(Collection<Item> c, int i) {
|
|
assertTrue(c.add(itemFor(i)));
|
|
}
|
|
static void mustAdd(Collection<Item> c, Item i) {
|
|
assertTrue(c.add(i));
|
|
}
|
|
static void mustOffer(Queue<Item> c, int i) {
|
|
assertTrue(c.offer(itemFor(i)));
|
|
}
|
|
static void mustOffer(Queue<Item> c, Item i) {
|
|
assertTrue(c.offer(i));
|
|
}
|
|
|
|
/**
|
|
* Sleeps until the given time has elapsed.
|
|
* Throws AssertionError if interrupted.
|
|
*/
|
|
static void sleep(long millis) {
|
|
try {
|
|
delay(millis);
|
|
} catch (InterruptedException fail) {
|
|
throw new AssertionError("Unexpected InterruptedException", fail);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Spin-waits up to the specified number of milliseconds for the given
|
|
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
|
|
* @param waitingForGodot if non-null, an additional condition to satisfy
|
|
*/
|
|
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis,
|
|
Callable<Boolean> waitingForGodot) {
|
|
for (long startTime = 0L;;) {
|
|
switch (thread.getState()) {
|
|
default: break;
|
|
case BLOCKED: case WAITING: case TIMED_WAITING:
|
|
try {
|
|
if (waitingForGodot == null || waitingForGodot.call())
|
|
return;
|
|
} catch (Throwable fail) { threadUnexpectedException(fail); }
|
|
break;
|
|
case TERMINATED:
|
|
fail("Unexpected thread termination");
|
|
}
|
|
|
|
if (startTime == 0L)
|
|
startTime = System.nanoTime();
|
|
else if (millisElapsedSince(startTime) > timeoutMillis) {
|
|
assertTrue(thread.isAlive());
|
|
if (waitingForGodot == null
|
|
|| thread.getState() == Thread.State.RUNNABLE)
|
|
fail("timed out waiting for thread to enter wait state");
|
|
else
|
|
fail("timed out waiting for condition, thread state="
|
|
+ thread.getState());
|
|
}
|
|
Thread.yield();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Spin-waits up to the specified number of milliseconds for the given
|
|
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
|
|
*/
|
|
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
|
|
waitForThreadToEnterWaitState(thread, timeoutMillis, null);
|
|
}
|
|
|
|
/**
|
|
* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
|
|
* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
|
|
*/
|
|
void waitForThreadToEnterWaitState(Thread thread) {
|
|
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null);
|
|
}
|
|
|
|
/**
|
|
* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
|
|
* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
|
|
* and additionally satisfy the given condition.
|
|
*/
|
|
void waitForThreadToEnterWaitState(Thread thread,
|
|
Callable<Boolean> waitingForGodot) {
|
|
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
|
|
}
|
|
|
|
/**
|
|
* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to
|
|
* be interrupted. Clears the interrupt status before returning.
|
|
*/
|
|
void awaitInterrupted() {
|
|
for (long startTime = 0L; !Thread.interrupted(); ) {
|
|
if (startTime == 0L)
|
|
startTime = System.nanoTime();
|
|
else if (millisElapsedSince(startTime) > LONG_DELAY_MS)
|
|
fail("timed out waiting for thread interrupt");
|
|
Thread.yield();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the number of milliseconds since time given by
|
|
* startNanoTime, which must have been previously returned from a
|
|
* call to {@link System#nanoTime()}.
|
|
*/
|
|
static long millisElapsedSince(long startNanoTime) {
|
|
return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
|
|
}
|
|
|
|
/**
|
|
* Checks that timed f.get() returns the expected value, and does not
|
|
* wait for the timeout to elapse before returning.
|
|
*/
|
|
<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
|
|
long startTime = System.nanoTime();
|
|
T actual = null;
|
|
try {
|
|
actual = f.get(timeoutMillis, MILLISECONDS);
|
|
} catch (Throwable fail) { threadUnexpectedException(fail); }
|
|
assertEquals(expectedValue, actual);
|
|
if (millisElapsedSince(startTime) > timeoutMillis/2)
|
|
throw new AssertionError("timed get did not return promptly");
|
|
}
|
|
|
|
<T> void checkTimedGet(Future<T> f, T expectedValue) {
|
|
checkTimedGet(f, expectedValue, LONG_DELAY_MS);
|
|
}
|
|
|
|
// Avoids unwanted interrupts when run inder jtreg
|
|
static ThreadGroup topThreadGroup() {
|
|
for (ThreadGroup g = Thread.currentThread().getThreadGroup(), p; ; g = p)
|
|
if ((p = g.getParent()) == null)
|
|
return g;
|
|
}
|
|
static final ThreadGroup jsr166TestThreadGroup =
|
|
new ThreadGroup(topThreadGroup(), "jsr1666TestThreadGroup");
|
|
|
|
/**
|
|
* Returns a new started daemon Thread running the given runnable.
|
|
*/
|
|
Thread newStartedThread(Runnable runnable) {
|
|
Thread t = new Thread(jsr166TestThreadGroup, runnable);
|
|
t.setDaemon(true);
|
|
t.start();
|
|
return t;
|
|
}
|
|
|
|
/**
|
|
* Returns a new started daemon Thread running the given action,
|
|
* wrapped in a CheckedRunnable.
|
|
*/
|
|
Thread newStartedThread(Action action) {
|
|
return newStartedThread(checkedRunnable(action));
|
|
}
|
|
|
|
/**
|
|
* Waits for the specified time (in milliseconds) for the thread
|
|
* to terminate (using {@link Thread#join(long)}), else interrupts
|
|
* the thread (in the hope that it may terminate later) and fails.
|
|
*/
|
|
void awaitTermination(Thread thread, long timeoutMillis) {
|
|
for (;;) { // ignore stray interrupts by test harness
|
|
try {
|
|
thread.join(timeoutMillis);
|
|
break;
|
|
} catch (InterruptedException ignore) {
|
|
}
|
|
}
|
|
if (thread.getState() != Thread.State.TERMINATED) {
|
|
String detail = String.format(
|
|
"timed out waiting for thread to terminate, thread=%s, state=%s" ,
|
|
thread, thread.getState());
|
|
try {
|
|
threadFail(detail);
|
|
} finally {
|
|
// Interrupt thread __after__ having reported its stack trace
|
|
thread.interrupt();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Waits for LONG_DELAY_MS milliseconds for the thread to
|
|
* terminate (using {@link Thread#join(long)}), else interrupts
|
|
* the thread (in the hope that it may terminate later) and fails.
|
|
*/
|
|
void awaitTermination(Thread t) {
|
|
awaitTermination(t, LONG_DELAY_MS);
|
|
}
|
|
|
|
// Some convenient Runnable classes
|
|
|
|
public abstract class CheckedRunnable implements Runnable {
|
|
protected abstract void realRun() throws Throwable;
|
|
|
|
public final void run() {
|
|
try {
|
|
realRun();
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
}
|
|
}
|
|
|
|
Runnable checkedRunnable(Action action) {
|
|
return new CheckedRunnable() {
|
|
public void realRun() throws Throwable {
|
|
action.run();
|
|
}};
|
|
}
|
|
|
|
public abstract class ThreadShouldThrow extends Thread {
|
|
protected abstract void realRun() throws Throwable;
|
|
|
|
final Class<?> exceptionClass;
|
|
|
|
<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
|
|
this.exceptionClass = exceptionClass;
|
|
}
|
|
|
|
public final void run() {
|
|
try {
|
|
realRun();
|
|
} catch (Throwable t) {
|
|
if (! exceptionClass.isInstance(t))
|
|
threadUnexpectedException(t);
|
|
return;
|
|
}
|
|
threadShouldThrow(exceptionClass.getSimpleName());
|
|
}
|
|
}
|
|
|
|
public abstract class CheckedInterruptedRunnable implements Runnable {
|
|
protected abstract void realRun() throws Throwable;
|
|
|
|
public final void run() {
|
|
try {
|
|
realRun();
|
|
} catch (InterruptedException success) {
|
|
threadAssertFalse(Thread.interrupted());
|
|
return;
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
threadShouldThrow("InterruptedException");
|
|
}
|
|
}
|
|
|
|
public abstract class CheckedCallable<T> implements Callable<T> {
|
|
protected abstract T realCall() throws Throwable;
|
|
|
|
public final T call() {
|
|
try {
|
|
return realCall();
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
throw new AssertionError("unreached");
|
|
}
|
|
}
|
|
|
|
public static class NoOpRunnable implements Runnable {
|
|
public void run() {}
|
|
}
|
|
|
|
public static class NoOpCallable implements Callable<Object> {
|
|
public Object call() { return Boolean.TRUE; }
|
|
}
|
|
|
|
public static final String TEST_STRING = "a test string";
|
|
|
|
public static class StringTask implements Callable<String> {
|
|
final String value;
|
|
public StringTask() { this(TEST_STRING); }
|
|
public StringTask(String value) { this.value = value; }
|
|
public String call() { return value; }
|
|
}
|
|
|
|
public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
|
|
return new CheckedCallable<String>() {
|
|
protected String realCall() {
|
|
try {
|
|
latch.await();
|
|
} catch (InterruptedException quittingTime) {}
|
|
return TEST_STRING;
|
|
}};
|
|
}
|
|
|
|
public Runnable countDowner(final CountDownLatch latch) {
|
|
return new CheckedRunnable() {
|
|
public void realRun() throws InterruptedException {
|
|
latch.countDown();
|
|
}};
|
|
}
|
|
|
|
class LatchAwaiter extends CheckedRunnable {
|
|
static final int NEW = 0;
|
|
static final int RUNNING = 1;
|
|
static final int DONE = 2;
|
|
final CountDownLatch latch;
|
|
int state = NEW;
|
|
LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
|
|
public void realRun() throws InterruptedException {
|
|
state = 1;
|
|
await(latch);
|
|
state = 2;
|
|
}
|
|
}
|
|
|
|
public LatchAwaiter awaiter(CountDownLatch latch) {
|
|
return new LatchAwaiter(latch);
|
|
}
|
|
|
|
public void await(CountDownLatch latch, long timeoutMillis) {
|
|
boolean timedOut = false;
|
|
try {
|
|
timedOut = !latch.await(timeoutMillis, MILLISECONDS);
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
if (timedOut)
|
|
fail("timed out waiting for CountDownLatch for "
|
|
+ (timeoutMillis/1000) + " sec");
|
|
}
|
|
|
|
public void await(CountDownLatch latch) {
|
|
await(latch, LONG_DELAY_MS);
|
|
}
|
|
|
|
public void await(Semaphore semaphore) {
|
|
boolean timedOut = false;
|
|
try {
|
|
timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS);
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
if (timedOut)
|
|
fail("timed out waiting for Semaphore for "
|
|
+ (LONG_DELAY_MS/1000) + " sec");
|
|
}
|
|
|
|
public void await(CyclicBarrier barrier) {
|
|
try {
|
|
barrier.await(LONG_DELAY_MS, MILLISECONDS);
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
}
|
|
|
|
// /**
|
|
// * Spin-waits up to LONG_DELAY_MS until flag becomes true.
|
|
// */
|
|
// public void await(AtomicBoolean flag) {
|
|
// await(flag, LONG_DELAY_MS);
|
|
// }
|
|
|
|
// /**
|
|
// * Spin-waits up to the specified timeout until flag becomes true.
|
|
// */
|
|
// public void await(AtomicBoolean flag, long timeoutMillis) {
|
|
// long startTime = System.nanoTime();
|
|
// while (!flag.get()) {
|
|
// if (millisElapsedSince(startTime) > timeoutMillis)
|
|
// throw new AssertionError("timed out");
|
|
// Thread.yield();
|
|
// }
|
|
// }
|
|
|
|
public static class NPETask implements Callable<String> {
|
|
public String call() { throw new NullPointerException(); }
|
|
}
|
|
|
|
public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
|
|
return new CheckedRunnable() {
|
|
protected void realRun() {
|
|
try {
|
|
delay(timeoutMillis);
|
|
} catch (InterruptedException ok) {}
|
|
}};
|
|
}
|
|
|
|
/**
|
|
* For use as ThreadFactory in constructors
|
|
*/
|
|
public static class SimpleThreadFactory implements ThreadFactory {
|
|
public Thread newThread(Runnable r) {
|
|
return new Thread(r);
|
|
}
|
|
}
|
|
|
|
public interface TrackedRunnable extends Runnable {
|
|
boolean isDone();
|
|
}
|
|
|
|
public static class TrackedNoOpRunnable implements Runnable {
|
|
public volatile boolean done = false;
|
|
public void run() {
|
|
done = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Analog of CheckedRunnable for RecursiveAction
|
|
*/
|
|
public abstract class CheckedRecursiveAction extends RecursiveAction {
|
|
protected abstract void realCompute() throws Throwable;
|
|
|
|
@Override protected final void compute() {
|
|
try {
|
|
realCompute();
|
|
} catch (CancellationException ex) {
|
|
throw ex; // expected by some tests
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Analog of CheckedCallable for RecursiveTask
|
|
*/
|
|
public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
|
|
protected abstract T realCompute() throws Throwable;
|
|
|
|
@Override protected final T compute() {
|
|
try {
|
|
return realCompute();
|
|
} catch (CancellationException ex) {
|
|
throw ex;
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
throw new AssertionError("unreached");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* For use as RejectedExecutionHandler in constructors
|
|
*/
|
|
public static class NoOpREHandler implements RejectedExecutionHandler {
|
|
public void rejectedExecution(Runnable r,
|
|
ThreadPoolExecutor executor) {}
|
|
}
|
|
|
|
/**
|
|
* A CyclicBarrier that uses timed await and fails with
|
|
* AssertionErrors instead of throwing checked exceptions.
|
|
*/
|
|
public static class CheckedBarrier extends CyclicBarrier {
|
|
public CheckedBarrier(int parties) { super(parties); }
|
|
|
|
public int await() {
|
|
try {
|
|
return super.await(LONGER_DELAY_MS, MILLISECONDS);
|
|
} catch (TimeoutException timedOut) {
|
|
throw new AssertionError("timed out");
|
|
} catch (Exception fail) {
|
|
throw new AssertionError("Unexpected exception: " + fail, fail);
|
|
}
|
|
}
|
|
}
|
|
|
|
void checkEmpty(BlockingQueue<?> q) {
|
|
try {
|
|
assertTrue(q.isEmpty());
|
|
assertEquals(0, q.size());
|
|
assertNull(q.peek());
|
|
assertNull(q.poll());
|
|
assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
|
|
assertEquals(q.toString(), "[]");
|
|
assertTrue(Arrays.equals(q.toArray(), new Object[0]));
|
|
assertFalse(q.iterator().hasNext());
|
|
try {
|
|
q.element();
|
|
shouldThrow();
|
|
} catch (NoSuchElementException success) {}
|
|
try {
|
|
q.iterator().next();
|
|
shouldThrow();
|
|
} catch (NoSuchElementException success) {}
|
|
try {
|
|
q.remove();
|
|
shouldThrow();
|
|
} catch (NoSuchElementException success) {}
|
|
} catch (InterruptedException fail) { threadUnexpectedException(fail); }
|
|
}
|
|
|
|
void assertSerialEquals(Object x, Object y) {
|
|
assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
|
|
}
|
|
|
|
void assertNotSerialEquals(Object x, Object y) {
|
|
assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
|
|
}
|
|
|
|
byte[] serialBytes(Object o) {
|
|
try {
|
|
ByteArrayOutputStream bos = new ByteArrayOutputStream();
|
|
ObjectOutputStream oos = new ObjectOutputStream(bos);
|
|
oos.writeObject(o);
|
|
oos.flush();
|
|
oos.close();
|
|
return bos.toByteArray();
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
return new byte[0];
|
|
}
|
|
}
|
|
|
|
@SuppressWarnings("unchecked")
|
|
void assertImmutable(Object o) {
|
|
if (o instanceof Collection) {
|
|
assertThrows(
|
|
UnsupportedOperationException.class,
|
|
() -> ((Collection) o).add(null));
|
|
}
|
|
}
|
|
|
|
@SuppressWarnings("unchecked")
|
|
<T> T serialClone(T o) {
|
|
T clone = null;
|
|
try {
|
|
ObjectInputStream ois = new ObjectInputStream
|
|
(new ByteArrayInputStream(serialBytes(o)));
|
|
clone = (T) ois.readObject();
|
|
} catch (Throwable fail) {
|
|
threadUnexpectedException(fail);
|
|
}
|
|
if (o == clone) assertImmutable(o);
|
|
else assertSame(o.getClass(), clone.getClass());
|
|
return clone;
|
|
}
|
|
|
|
/**
|
|
* A version of serialClone that leaves error handling (for
|
|
* e.g. NotSerializableException) up to the caller.
|
|
*/
|
|
@SuppressWarnings("unchecked")
|
|
<T> T serialClonePossiblyFailing(T o)
|
|
throws ReflectiveOperationException, java.io.IOException {
|
|
ByteArrayOutputStream bos = new ByteArrayOutputStream();
|
|
ObjectOutputStream oos = new ObjectOutputStream(bos);
|
|
oos.writeObject(o);
|
|
oos.flush();
|
|
oos.close();
|
|
ObjectInputStream ois = new ObjectInputStream
|
|
(new ByteArrayInputStream(bos.toByteArray()));
|
|
T clone = (T) ois.readObject();
|
|
if (o == clone) assertImmutable(o);
|
|
else assertSame(o.getClass(), clone.getClass());
|
|
return clone;
|
|
}
|
|
|
|
/**
|
|
* If o implements Cloneable and has a public clone method,
|
|
* returns a clone of o, else null.
|
|
*/
|
|
@SuppressWarnings("unchecked")
|
|
<T> T cloneableClone(T o) {
|
|
if (!(o instanceof Cloneable)) return null;
|
|
final T clone;
|
|
try {
|
|
clone = (T) o.getClass().getMethod("clone").invoke(o);
|
|
} catch (NoSuchMethodException ok) {
|
|
return null;
|
|
} catch (ReflectiveOperationException unexpected) {
|
|
throw new Error(unexpected);
|
|
}
|
|
assertNotSame(o, clone); // not 100% guaranteed by spec
|
|
assertSame(o.getClass(), clone.getClass());
|
|
return clone;
|
|
}
|
|
|
|
public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
|
|
Action... throwingActions) {
|
|
for (Action throwingAction : throwingActions) {
|
|
boolean threw = false;
|
|
try { throwingAction.run(); }
|
|
catch (Throwable t) {
|
|
threw = true;
|
|
if (!expectedExceptionClass.isInstance(t))
|
|
throw new AssertionError(
|
|
"Expected " + expectedExceptionClass.getName() +
|
|
", got " + t.getClass().getName(),
|
|
t);
|
|
}
|
|
if (!threw)
|
|
shouldThrow(expectedExceptionClass.getName());
|
|
}
|
|
}
|
|
|
|
public void assertIteratorExhausted(Iterator<?> it) {
|
|
try {
|
|
it.next();
|
|
shouldThrow();
|
|
} catch (NoSuchElementException success) {}
|
|
assertFalse(it.hasNext());
|
|
}
|
|
|
|
public <T> Callable<T> callableThrowing(final Exception ex) {
|
|
return new Callable<T>() { public T call() throws Exception { throw ex; }};
|
|
}
|
|
|
|
public Runnable runnableThrowing(final RuntimeException ex) {
|
|
return new Runnable() { public void run() { throw ex; }};
|
|
}
|
|
|
|
/** A reusable thread pool to be shared by tests. */
|
|
static final ExecutorService cachedThreadPool =
|
|
new ThreadPoolExecutor(0, Integer.MAX_VALUE,
|
|
1000L, MILLISECONDS,
|
|
new SynchronousQueue<Runnable>());
|
|
|
|
static <T> void shuffle(T[] array) {
|
|
Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
|
|
}
|
|
|
|
/**
|
|
* Returns the same String as would be returned by {@link
|
|
* Object#toString}, whether or not the given object's class
|
|
* overrides toString().
|
|
*
|
|
* @see System#identityHashCode
|
|
*/
|
|
static String identityString(Object x) {
|
|
return x.getClass().getName()
|
|
+ "@" + Integer.toHexString(System.identityHashCode(x));
|
|
}
|
|
|
|
// --- Shared assertions for Executor tests ---
|
|
|
|
/**
|
|
* Returns maximum number of tasks that can be submitted to given
|
|
* pool (with bounded queue) before saturation (when submission
|
|
* throws RejectedExecutionException).
|
|
*/
|
|
static final int saturatedSize(ThreadPoolExecutor pool) {
|
|
BlockingQueue<Runnable> q = pool.getQueue();
|
|
return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
|
|
}
|
|
|
|
@SuppressWarnings("FutureReturnValueIgnored")
|
|
void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
|
|
try {
|
|
e.execute((Runnable) null);
|
|
shouldThrow();
|
|
} catch (NullPointerException success) {}
|
|
|
|
if (! (e instanceof ExecutorService)) return;
|
|
ExecutorService es = (ExecutorService) e;
|
|
try {
|
|
es.submit((Runnable) null);
|
|
shouldThrow();
|
|
} catch (NullPointerException success) {}
|
|
try {
|
|
es.submit((Runnable) null, Boolean.TRUE);
|
|
shouldThrow();
|
|
} catch (NullPointerException success) {}
|
|
try {
|
|
es.submit((Callable<?>) null);
|
|
shouldThrow();
|
|
} catch (NullPointerException success) {}
|
|
|
|
if (! (e instanceof ScheduledExecutorService)) return;
|
|
ScheduledExecutorService ses = (ScheduledExecutorService) e;
|
|
try {
|
|
ses.schedule((Runnable) null,
|
|
randomTimeout(), randomTimeUnit());
|
|
shouldThrow();
|
|
} catch (NullPointerException success) {}
|
|
try {
|
|
ses.schedule((Callable<?>) null,
|
|
randomTimeout(), randomTimeUnit());
|
|
shouldThrow();
|
|
} catch (NullPointerException success) {}
|
|
try {
|
|
ses.scheduleAtFixedRate((Runnable) null,
|
|
randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
|
|
shouldThrow();
|
|
} catch (NullPointerException success) {}
|
|
try {
|
|
ses.scheduleWithFixedDelay((Runnable) null,
|
|
randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
|
|
shouldThrow();
|
|
} catch (NullPointerException success) {}
|
|
}
|
|
|
|
void setRejectedExecutionHandler(
|
|
ThreadPoolExecutor p, RejectedExecutionHandler handler) {
|
|
p.setRejectedExecutionHandler(handler);
|
|
assertSame(handler, p.getRejectedExecutionHandler());
|
|
}
|
|
|
|
void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
|
|
final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
|
|
final long savedTaskCount = p.getTaskCount();
|
|
final long savedCompletedTaskCount = p.getCompletedTaskCount();
|
|
final int savedQueueSize = p.getQueue().size();
|
|
final boolean stock = (p.getClass().getClassLoader() == null);
|
|
|
|
Runnable r = () -> {};
|
|
Callable<Boolean> c = () -> Boolean.TRUE;
|
|
|
|
class Recorder implements RejectedExecutionHandler {
|
|
public volatile Runnable r = null;
|
|
public volatile ThreadPoolExecutor p = null;
|
|
public void reset() { r = null; p = null; }
|
|
public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
|
|
assertNull(this.r);
|
|
assertNull(this.p);
|
|
this.r = r;
|
|
this.p = p;
|
|
}
|
|
}
|
|
|
|
// check custom handler is invoked exactly once per task
|
|
Recorder recorder = new Recorder();
|
|
setRejectedExecutionHandler(p, recorder);
|
|
for (int i = 2; i--> 0; ) {
|
|
recorder.reset();
|
|
p.execute(r);
|
|
if (stock && p.getClass() == ThreadPoolExecutor.class)
|
|
assertSame(r, recorder.r);
|
|
assertSame(p, recorder.p);
|
|
|
|
recorder.reset();
|
|
assertFalse(p.submit(r).isDone());
|
|
if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
|
|
assertSame(p, recorder.p);
|
|
|
|
recorder.reset();
|
|
assertFalse(p.submit(r, Boolean.TRUE).isDone());
|
|
if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
|
|
assertSame(p, recorder.p);
|
|
|
|
recorder.reset();
|
|
assertFalse(p.submit(c).isDone());
|
|
if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
|
|
assertSame(p, recorder.p);
|
|
|
|
if (p instanceof ScheduledExecutorService) {
|
|
ScheduledExecutorService s = (ScheduledExecutorService) p;
|
|
ScheduledFuture<?> future;
|
|
|
|
recorder.reset();
|
|
future = s.schedule(r, randomTimeout(), randomTimeUnit());
|
|
assertFalse(future.isDone());
|
|
if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
|
|
assertSame(p, recorder.p);
|
|
|
|
recorder.reset();
|
|
future = s.schedule(c, randomTimeout(), randomTimeUnit());
|
|
assertFalse(future.isDone());
|
|
if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
|
|
assertSame(p, recorder.p);
|
|
|
|
recorder.reset();
|
|
future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
|
|
assertFalse(future.isDone());
|
|
if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
|
|
assertSame(p, recorder.p);
|
|
|
|
recorder.reset();
|
|
future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
|
|
assertFalse(future.isDone());
|
|
if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
|
|
assertSame(p, recorder.p);
|
|
}
|
|
}
|
|
|
|
// Checking our custom handler above should be sufficient, but
|
|
// we add some integration tests of standard handlers.
|
|
final AtomicReference<Thread> thread = new AtomicReference<>();
|
|
final Runnable setThread = () -> thread.set(Thread.currentThread());
|
|
|
|
setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
|
|
try {
|
|
p.execute(setThread);
|
|
shouldThrow();
|
|
} catch (RejectedExecutionException success) {}
|
|
assertNull(thread.get());
|
|
|
|
setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
|
|
p.execute(setThread);
|
|
assertNull(thread.get());
|
|
|
|
setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
|
|
p.execute(setThread);
|
|
if (p.isShutdown())
|
|
assertNull(thread.get());
|
|
else
|
|
assertSame(Thread.currentThread(), thread.get());
|
|
|
|
setRejectedExecutionHandler(p, savedHandler);
|
|
|
|
// check that pool was not perturbed by handlers
|
|
assertEquals(savedTaskCount, p.getTaskCount());
|
|
assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
|
|
assertEquals(savedQueueSize, p.getQueue().size());
|
|
}
|
|
|
|
void assertCollectionsEquals(Collection<?> x, Collection<?> y) {
|
|
assertEquals(x, y);
|
|
assertEquals(y, x);
|
|
assertEquals(x.isEmpty(), y.isEmpty());
|
|
assertEquals(x.size(), y.size());
|
|
if (x instanceof List) {
|
|
assertEquals(x.toString(), y.toString());
|
|
}
|
|
if (x instanceof List || x instanceof Set) {
|
|
assertEquals(x.hashCode(), y.hashCode());
|
|
}
|
|
if (x instanceof List || x instanceof Deque) {
|
|
assertTrue(Arrays.equals(x.toArray(), y.toArray()));
|
|
assertTrue(Arrays.equals(x.toArray(new Object[0]),
|
|
y.toArray(new Object[0])));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A weaker form of assertCollectionsEquals which does not insist
|
|
* that the two collections satisfy Object#equals(Object), since
|
|
* they may use identity semantics as Deques do.
|
|
*/
|
|
void assertCollectionsEquivalent(Collection<?> x, Collection<?> y) {
|
|
if (x instanceof List || x instanceof Set)
|
|
assertCollectionsEquals(x, y);
|
|
else {
|
|
assertEquals(x.isEmpty(), y.isEmpty());
|
|
assertEquals(x.size(), y.size());
|
|
assertEquals(new HashSet<Object>(x), new HashSet<Object>(y));
|
|
if (x instanceof Deque) {
|
|
assertTrue(Arrays.equals(x.toArray(), y.toArray()));
|
|
assertTrue(Arrays.equals(x.toArray(new Object[0]),
|
|
y.toArray(new Object[0])));
|
|
}
|
|
}
|
|
}
|
|
}
|