212 lines
7.4 KiB
Java
212 lines
7.4 KiB
Java
/*
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* Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6464365
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* @summary Test state transitions; check protected methods are called
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* @author Martin Buchholz
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*/
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import java.util.concurrent.CancellationException;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.FutureTask;
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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.AtomicLong;
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public class Customized {
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static final AtomicLong doneCount = new AtomicLong(0);
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static final AtomicLong setCount = new AtomicLong(0);
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static final AtomicLong setExceptionCount = new AtomicLong(0);
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static void equal(long expected, AtomicLong actual) {
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equal(expected, actual.get());
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}
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static void equalCounts(long x, long y, long z) {
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equal(x, doneCount);
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equal(y, setCount);
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equal(z, setExceptionCount);
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}
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static class MyFutureTask<V> extends FutureTask<V> {
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MyFutureTask(Runnable r, V result) { super(r, result); }
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protected void done() {
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doneCount.getAndIncrement();
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super.done();
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}
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protected void set(V v) {
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setCount.getAndIncrement();
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super.set(v);
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}
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protected void setException(Throwable t) {
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setExceptionCount.getAndIncrement();
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super.setException(t);
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}
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public boolean runAndReset() {
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return super.runAndReset();
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}
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}
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static <V> void checkReady(final FutureTask<V> task) {
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check(! task.isDone());
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check(! task.isCancelled());
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THROWS(TimeoutException.class,
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() -> task.get(0L, TimeUnit.SECONDS));
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}
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static <V> void checkDone(final FutureTask<V> task) {
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try {
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check(task.isDone());
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check(! task.isCancelled());
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check(task.get() != null);
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} catch (Throwable t) { unexpected(t); }
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}
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static <V> void checkCancelled(final FutureTask<V> task) {
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check(task.isDone());
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check(task.isCancelled());
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THROWS(CancellationException.class,
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() -> task.get(0L, TimeUnit.SECONDS),
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() -> task.get());
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}
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static <V> void checkThrew(final FutureTask<V> task) {
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check(task.isDone());
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check(! task.isCancelled());
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THROWS(ExecutionException.class,
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() -> task.get(0L, TimeUnit.SECONDS),
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() -> task.get());
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}
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static <V> void cancel(FutureTask<V> task, boolean mayInterruptIfRunning) {
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task.cancel(mayInterruptIfRunning);
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checkCancelled(task);
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}
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static <V> void run(FutureTask<V> task) {
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boolean isCancelled = task.isCancelled();
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task.run();
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check(task.isDone());
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equal(isCancelled, task.isCancelled());
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}
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static void realMain(String[] args) throws Throwable {
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final Runnable nop = new Runnable() {
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public void run() {}};
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final Runnable bad = new Runnable() {
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public void run() { throw new Error(); }};
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try {
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final MyFutureTask<Long> task = new MyFutureTask<>(nop, 42L);
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checkReady(task);
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equalCounts(0,0,0);
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check(task.runAndReset());
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checkReady(task);
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equalCounts(0,0,0);
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run(task);
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checkDone(task);
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equalCounts(1,1,0);
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equal(42L, task.get());
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run(task);
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checkDone(task);
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equalCounts(1,1,0);
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equal(42L, task.get());
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} catch (Throwable t) { unexpected(t); }
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try {
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final MyFutureTask<Long> task = new MyFutureTask<>(nop, 42L);
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cancel(task, false);
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equalCounts(2,1,0);
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cancel(task, false);
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equalCounts(2,1,0);
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run(task);
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equalCounts(2,1,0);
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check(! task.runAndReset());
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} catch (Throwable t) { unexpected(t); }
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try {
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final MyFutureTask<Long> task = new MyFutureTask<>(bad, 42L);
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checkReady(task);
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run(task);
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checkThrew(task);
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equalCounts(3,1,1);
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run(task);
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equalCounts(3,1,1);
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} catch (Throwable t) { unexpected(t); }
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try {
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final MyFutureTask<Long> task = new MyFutureTask<>(nop, 42L);
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checkReady(task);
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task.set(99L);
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checkDone(task);
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equalCounts(4,2,1);
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run(task);
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equalCounts(4,2,1);
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task.setException(new Throwable());
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checkDone(task);
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equalCounts(4,2,2);
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} catch (Throwable t) { unexpected(t); }
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try {
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final MyFutureTask<Long> task = new MyFutureTask<>(nop, 42L);
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checkReady(task);
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task.setException(new Throwable());
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checkThrew(task);
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equalCounts(5,2,3);
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run(task);
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equalCounts(5,2,3);
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task.set(99L);
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checkThrew(task);
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equalCounts(5,3,3);
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} catch (Throwable t) { unexpected(t); }
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System.out.printf("doneCount=%d%n", doneCount.get());
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System.out.printf("setCount=%d%n", setCount.get());
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System.out.printf("setExceptionCount=%d%n", setExceptionCount.get());
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}
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//--------------------- Infrastructure ---------------------------
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static volatile int passed = 0, failed = 0;
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static void pass() {passed++;}
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static void fail() {failed++; Thread.dumpStack();}
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static void fail(String msg) {System.out.println(msg); fail();}
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static void unexpected(Throwable t) {failed++; t.printStackTrace();}
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static void check(boolean cond) {if (cond) pass(); else fail();}
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static void equal(Object x, Object y) {
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if (x == null ? y == null : x.equals(y)) pass();
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else fail(x + " not equal to " + y);}
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public static void main(String[] args) throws Throwable {
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try {realMain(args);} catch (Throwable t) {unexpected(t);}
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System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new AssertionError("Some tests failed");}
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interface Fun {void f() throws Throwable;}
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static void THROWS(Class<? extends Throwable> k, Fun... fs) {
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for (Fun f : fs)
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try { f.f(); fail("Expected " + k.getName() + " not thrown"); }
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catch (Throwable t) {
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if (k.isAssignableFrom(t.getClass())) pass();
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else unexpected(t);}}
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}
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