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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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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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import junit.framework.*; |
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import java.util.Arrays; |
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import java.util.NoSuchElementException; |
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import java.util.PropertyPermission; |
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import java.util.concurrent.*; |
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import java.util.concurrent.atomic.AtomicReference; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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import java.security.CodeSource; |
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import java.security.Permission; |
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import java.security.PermissionCollection; |
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SHORT_DELAY_MS = getShortDelay(); |
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SMALL_DELAY_MS = SHORT_DELAY_MS * 5; |
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MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10; |
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LONG_DELAY_MS = SHORT_DELAY_MS * 50; |
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LONG_DELAY_MS = SHORT_DELAY_MS * 200; |
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} |
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/** |
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* earlier by threadRecordFailure. |
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*/ |
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public void tearDown() throws Exception { |
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Throwable t = threadFailure.get(); |
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Throwable t = threadFailure.getAndSet(null); |
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if (t != null) { |
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if (t instanceof Error) |
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throw (Error) t; |
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} |
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|
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/** |
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* Delays, via Thread.sleep for the given millisecond delay, but |
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* if the sleep is shorter than specified, may re-sleep or yield |
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* until time elapses. |
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*/ |
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public static void delay(long ms) throws InterruptedException { |
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long startTime = System.nanoTime(); |
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long ns = ms * 1000 * 1000; |
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for (;;) { |
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if (ms > 0L) |
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Thread.sleep(ms); |
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else // too short to sleep |
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Thread.yield(); |
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long d = ns - (System.nanoTime() - startTime); |
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if (d > 0L) |
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ms = d / (1000 * 1000); |
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else |
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break; |
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} |
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} |
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|
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/** |
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* Waits out termination of a thread pool or fails doing so. |
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*/ |
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public void joinPool(ExecutorService exec) { |
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try { |
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exec.shutdown(); |
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assertTrue("ExecutorService did not terminate in a timely manner", |
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exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
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exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)); |
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} catch (SecurityException ok) { |
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// Allowed in case test doesn't have privs |
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} catch (InterruptedException ie) { |
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*/ |
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void sleep(long millis) { |
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try { |
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Thread.sleep(millis); |
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delay(millis); |
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} catch (InterruptedException ie) { |
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AssertionFailedError afe = |
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new AssertionFailedError("Unexpected InterruptedException"); |
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Thread.State s = thread.getState(); |
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if (s == Thread.State.BLOCKED || |
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s == Thread.State.WAITING || |
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s == Thread.State.TIMED_WAITING || |
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System.nanoTime() - t0 > timeoutNanos) |
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s == Thread.State.TIMED_WAITING) |
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return; |
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else if (s == Thread.State.TERMINATED) |
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fail("Unexpected thread termination"); |
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else if (System.nanoTime() - t0 > timeoutNanos) { |
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threadAssertTrue(thread.isAlive()); |
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return; |
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} |
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Thread.yield(); |
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} |
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} |
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/** |
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* Waits up to LONG_DELAY_MS for the given thread to enter a wait |
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* state: BLOCKED, WAITING, or TIMED_WAITING. |
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*/ |
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void waitForThreadToEnterWaitState(Thread thread) { |
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waitForThreadToEnterWaitState(thread, LONG_DELAY_MS); |
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} |
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|
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/** |
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* Returns the number of milliseconds since time given by |
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* startNanoTime, which must have been previously returned from a |
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* call to {@link System.nanoTime()}. |
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*/ |
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long millisElapsedSince(long startNanoTime) { |
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return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime); |
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} |
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|
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/** |
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* Returns a new started daemon Thread running the given runnable. |
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*/ |
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Thread newStartedThread(Runnable runnable) { |
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} |
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} |
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|
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/** |
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* Waits for LONG_DELAY_MS milliseconds for the thread to |
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* terminate (using {@link Thread#join(long)}), else interrupts |
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* the thread (in the hope that it may terminate later) and fails. |
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*/ |
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void awaitTermination(Thread t) { |
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awaitTermination(t, LONG_DELAY_MS); |
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} |
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|
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// Some convenient Runnable classes |
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|
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public abstract class CheckedRunnable implements Runnable { |
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}}; |
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} |
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|
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public Runnable awaiter(final CountDownLatch latch) { |
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return new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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latch.await(); |
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}}; |
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} |
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|
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public static class NPETask implements Callable<String> { |
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public String call() { throw new NullPointerException(); } |
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} |
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public class ShortRunnable extends CheckedRunnable { |
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protected void realRun() throws Throwable { |
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Thread.sleep(SHORT_DELAY_MS); |
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delay(SHORT_DELAY_MS); |
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} |
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} |
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public class ShortInterruptedRunnable extends CheckedInterruptedRunnable { |
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protected void realRun() throws InterruptedException { |
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Thread.sleep(SHORT_DELAY_MS); |
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delay(SHORT_DELAY_MS); |
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} |
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} |
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public class SmallRunnable extends CheckedRunnable { |
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protected void realRun() throws Throwable { |
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Thread.sleep(SMALL_DELAY_MS); |
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delay(SMALL_DELAY_MS); |
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} |
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} |
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public class SmallPossiblyInterruptedRunnable extends CheckedRunnable { |
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protected void realRun() { |
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try { |
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Thread.sleep(SMALL_DELAY_MS); |
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delay(SMALL_DELAY_MS); |
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} catch (InterruptedException ok) {} |
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} |
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} |
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|
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public class SmallCallable extends CheckedCallable { |
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protected Object realCall() throws InterruptedException { |
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Thread.sleep(SMALL_DELAY_MS); |
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delay(SMALL_DELAY_MS); |
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return Boolean.TRUE; |
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} |
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} |
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|
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public class MediumRunnable extends CheckedRunnable { |
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protected void realRun() throws Throwable { |
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Thread.sleep(MEDIUM_DELAY_MS); |
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delay(MEDIUM_DELAY_MS); |
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} |
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} |
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public class MediumInterruptedRunnable extends CheckedInterruptedRunnable { |
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protected void realRun() throws InterruptedException { |
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Thread.sleep(MEDIUM_DELAY_MS); |
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delay(MEDIUM_DELAY_MS); |
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} |
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} |
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return new CheckedRunnable() { |
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protected void realRun() { |
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try { |
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Thread.sleep(timeoutMillis); |
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delay(timeoutMillis); |
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} catch (InterruptedException ok) {} |
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}}; |
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} |
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public class MediumPossiblyInterruptedRunnable extends CheckedRunnable { |
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protected void realRun() { |
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try { |
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Thread.sleep(MEDIUM_DELAY_MS); |
902 |
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delay(MEDIUM_DELAY_MS); |
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} catch (InterruptedException ok) {} |
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} |
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} |
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public class LongPossiblyInterruptedRunnable extends CheckedRunnable { |
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protected void realRun() { |
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try { |
910 |
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Thread.sleep(LONG_DELAY_MS); |
910 |
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delay(LONG_DELAY_MS); |
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} catch (InterruptedException ok) {} |
912 |
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} |
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} |
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public boolean isDone() { return done; } |
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public void run() { |
933 |
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try { |
934 |
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Thread.sleep(timeoutMillis); |
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delay(timeoutMillis); |
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done = true; |
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} catch (InterruptedException ok) {} |
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} |
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public volatile boolean done = false; |
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public void run() { |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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delay(SHORT_DELAY_MS); |
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done = true; |
947 |
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} catch (InterruptedException ok) {} |
948 |
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} |
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public volatile boolean done = false; |
953 |
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public void run() { |
954 |
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try { |
955 |
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Thread.sleep(SMALL_DELAY_MS); |
955 |
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delay(SMALL_DELAY_MS); |
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done = true; |
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} catch (InterruptedException ok) {} |
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} |
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public volatile boolean done = false; |
963 |
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public void run() { |
964 |
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try { |
965 |
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Thread.sleep(MEDIUM_DELAY_MS); |
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delay(MEDIUM_DELAY_MS); |
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done = true; |
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} catch (InterruptedException ok) {} |
968 |
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} |
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public volatile boolean done = false; |
973 |
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public void run() { |
974 |
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try { |
975 |
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Thread.sleep(LONG_DELAY_MS); |
975 |
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delay(LONG_DELAY_MS); |
976 |
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done = true; |
977 |
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} catch (InterruptedException ok) {} |
978 |
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} |
989 |
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public volatile boolean done = false; |
990 |
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public Object call() { |
991 |
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try { |
992 |
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Thread.sleep(SMALL_DELAY_MS); |
992 |
> |
delay(SMALL_DELAY_MS); |
993 |
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done = true; |
994 |
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} catch (InterruptedException ok) {} |
995 |
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return Boolean.TRUE; |
1054 |
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} |
1055 |
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} |
1056 |
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|
1057 |
+ |
public void checkEmpty(BlockingQueue q) { |
1058 |
+ |
try { |
1059 |
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assertTrue(q.isEmpty()); |
1060 |
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assertEquals(0, q.size()); |
1061 |
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assertNull(q.peek()); |
1062 |
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assertNull(q.poll()); |
1063 |
+ |
assertNull(q.poll(0, MILLISECONDS)); |
1064 |
+ |
assertEquals(q.toString(), "[]"); |
1065 |
+ |
assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
1066 |
+ |
assertFalse(q.iterator().hasNext()); |
1067 |
+ |
try { |
1068 |
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q.element(); |
1069 |
+ |
shouldThrow(); |
1070 |
+ |
} catch (NoSuchElementException success) {} |
1071 |
+ |
try { |
1072 |
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q.iterator().next(); |
1073 |
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shouldThrow(); |
1074 |
+ |
} catch (NoSuchElementException success) {} |
1075 |
+ |
try { |
1076 |
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q.remove(); |
1077 |
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shouldThrow(); |
1078 |
+ |
} catch (NoSuchElementException success) {} |
1079 |
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} catch (InterruptedException ie) { |
1080 |
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threadUnexpectedException(ie); |
1081 |
+ |
} |
1082 |
+ |
} |
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|
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} |