7 |
|
*/ |
8 |
|
|
9 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
+ |
import static java.util.concurrent.TimeUnit.MINUTES; |
11 |
|
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
12 |
|
|
13 |
|
import java.io.ByteArrayInputStream; |
188 |
|
return (regex == null) ? null : Pattern.compile(regex); |
189 |
|
} |
190 |
|
|
191 |
+ |
static volatile TestCase currentTestCase; |
192 |
+ |
static { |
193 |
+ |
Runnable checkForWedgedTest = new Runnable() { public void run() { |
194 |
+ |
// avoid spurious reports with enormous runsPerTest |
195 |
+ |
final int timeoutMinutes = Math.max(runsPerTest / 10, 1); |
196 |
+ |
for (TestCase lastTestCase = currentTestCase;;) { |
197 |
+ |
try { MINUTES.sleep(timeoutMinutes); } |
198 |
+ |
catch (InterruptedException unexpected) { break; } |
199 |
+ |
if (lastTestCase == currentTestCase) { |
200 |
+ |
System.err.println |
201 |
+ |
("Looks like we're stuck running test: " |
202 |
+ |
+ lastTestCase); |
203 |
+ |
dumpTestThreads(); |
204 |
+ |
} |
205 |
+ |
lastTestCase = currentTestCase; |
206 |
+ |
}}}; |
207 |
+ |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
208 |
+ |
thread.setDaemon(true); |
209 |
+ |
thread.start(); |
210 |
+ |
} |
211 |
+ |
|
212 |
|
public void runBare() throws Throwable { |
213 |
+ |
currentTestCase = this; |
214 |
|
if (methodFilter == null |
215 |
|
|| methodFilter.matcher(toString()).find()) |
216 |
|
super.runBare(); |
484 |
|
} else { |
485 |
|
return new TestSuite(); |
486 |
|
} |
464 |
– |
|
487 |
|
} |
488 |
|
|
489 |
|
// Delays for timing-dependent tests, in milliseconds. |
541 |
|
* the same test have no effect. |
542 |
|
*/ |
543 |
|
public void threadRecordFailure(Throwable t) { |
544 |
< |
printAllStackTraces(); |
544 |
> |
System.err.println(t); |
545 |
> |
dumpTestThreads(); |
546 |
|
threadFailure.compareAndSet(null, t); |
547 |
|
} |
548 |
|
|
553 |
|
void tearDownFail(String format, Object... args) { |
554 |
|
String msg = toString() + ": " + String.format(format, args); |
555 |
|
System.err.println(msg); |
556 |
< |
printAllStackTraces(); |
556 |
> |
dumpTestThreads(); |
557 |
|
throw new AssertionFailedError(msg); |
558 |
|
} |
559 |
|
|
770 |
|
/** |
771 |
|
* Allows use of try-with-resources with per-test thread pools. |
772 |
|
*/ |
773 |
< |
static class PoolCloser<T extends ExecutorService> |
774 |
< |
implements AutoCloseable { |
775 |
< |
public final T pool; |
753 |
< |
public PoolCloser(T pool) { this.pool = pool; } |
773 |
> |
class PoolCleaner implements AutoCloseable { |
774 |
> |
private final ExecutorService pool; |
775 |
> |
public PoolCleaner(ExecutorService pool) { this.pool = pool; } |
776 |
|
public void close() { joinPool(pool); } |
777 |
|
} |
778 |
|
|
779 |
+ |
PoolCleaner cleaner(ExecutorService pool) { |
780 |
+ |
return new PoolCleaner(pool); |
781 |
+ |
} |
782 |
+ |
|
783 |
|
/** |
784 |
|
* Waits out termination of a thread pool or fails doing so. |
785 |
|
*/ |
786 |
< |
static void joinPool(ExecutorService pool) { |
786 |
> |
void joinPool(ExecutorService pool) { |
787 |
|
try { |
788 |
|
pool.shutdown(); |
789 |
< |
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
790 |
< |
fail("ExecutorService " + pool + |
791 |
< |
" did not terminate in a timely manner"); |
789 |
> |
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) { |
790 |
> |
try { |
791 |
> |
threadFail("ExecutorService " + pool + |
792 |
> |
" did not terminate in a timely manner"); |
793 |
> |
} finally { |
794 |
> |
// last resort, for the benefit of subsequent tests |
795 |
> |
pool.shutdownNow(); |
796 |
> |
pool.awaitTermination(SMALL_DELAY_MS, MILLISECONDS); |
797 |
> |
} |
798 |
> |
} |
799 |
|
} catch (SecurityException ok) { |
800 |
|
// Allowed in case test doesn't have privs |
801 |
|
} catch (InterruptedException fail) { |
802 |
< |
fail("Unexpected InterruptedException"); |
802 |
> |
threadFail("Unexpected InterruptedException"); |
803 |
|
} |
804 |
|
} |
805 |
|
|
812 |
|
* necessarily individually slow because they must block. |
813 |
|
*/ |
814 |
|
void testInParallel(Action ... actions) { |
815 |
< |
try (PoolCloser<ExecutorService> poolCloser |
816 |
< |
= new PoolCloser<>(Executors.newCachedThreadPool())) { |
784 |
< |
ExecutorService pool = poolCloser.pool; |
815 |
> |
ExecutorService pool = Executors.newCachedThreadPool(); |
816 |
> |
try (PoolCleaner cleaner = cleaner(pool)) { |
817 |
|
ArrayList<Future<?>> futures = new ArrayList<>(actions.length); |
818 |
|
for (final Action action : actions) |
819 |
|
futures.add(pool.submit(new CheckedRunnable() { |
830 |
|
} |
831 |
|
|
832 |
|
/** |
833 |
< |
* A debugging tool to print all stack traces, as jstack does. |
833 |
> |
* A debugging tool to print stack traces of most threads, as jstack does. |
834 |
|
* Uninteresting threads are filtered out. |
835 |
|
*/ |
836 |
< |
static void printAllStackTraces() { |
836 |
> |
static void dumpTestThreads() { |
837 |
|
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
838 |
|
System.err.println("------ stacktrace dump start ------"); |
839 |
|
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
846 |
|
if ("Finalizer".equals(name) |
847 |
|
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
848 |
|
continue; |
849 |
+ |
if ("checkForWedgedTest".equals(name)) |
850 |
+ |
continue; |
851 |
|
System.err.print(info); |
852 |
|
} |
853 |
|
System.err.println("------ stacktrace dump end ------"); |
870 |
|
delay(millis); |
871 |
|
assertTrue(thread.isAlive()); |
872 |
|
} catch (InterruptedException fail) { |
873 |
< |
fail("Unexpected InterruptedException"); |
873 |
> |
threadFail("Unexpected InterruptedException"); |
874 |
|
} |
875 |
|
} |
876 |
|
|
892 |
|
for (Thread thread : threads) |
893 |
|
assertTrue(thread.isAlive()); |
894 |
|
} catch (InterruptedException fail) { |
895 |
< |
fail("Unexpected InterruptedException"); |
895 |
> |
threadFail("Unexpected InterruptedException"); |
896 |
|
} |
897 |
|
} |
898 |
|
|