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root/jsr166/jsr166/src/test/tck/JSR166TestCase.java

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.146 by jsr166, Fri Sep 25 23:32:15 2015 UTC vs.
Revision 1.179 by jsr166, Fri Oct 23 21:59:58 2015 UTC

#	Line 7 | Line 7
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;
#	Line 15 | Line 16 | import java.io.ObjectInputStream;
16		import java.io.ObjectOutputStream;
17		import java.lang.management.ManagementFactory;
18		import java.lang.management.ThreadInfo;
19	+	import java.lang.management.ThreadMXBean;
20		import java.lang.reflect.Constructor;
21		import java.lang.reflect.Method;
22		import java.lang.reflect.Modifier;
23	+	import java.nio.file.Files;
24	+	import java.nio.file.Paths;
25		import java.security.CodeSource;
26		import java.security.Permission;
27		import java.security.PermissionCollection;
#	Line 50 | Line 54 | import java.util.concurrent.ThreadFactor
54		import java.util.concurrent.ThreadPoolExecutor;
55		import java.util.concurrent.TimeoutException;
56		import java.util.concurrent.atomic.AtomicReference;
57	+	import java.util.regex.Matcher;
58		import java.util.regex.Pattern;
59
60		import junit.framework.AssertionFailedError;
#	Line 186 | Line 191 | public class JSR166TestCase extends Test
191		return (regex == null) ? null : Pattern.compile(regex);
192		}
193
194	<	protected void runTest() throws Throwable {
194	>	// Instrumentation to debug very rare, but very annoying hung test runs.
195	>	static volatile TestCase currentTestCase;
196	>	// static volatile int currentRun = 0;
197	>	static {
198	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
199	>	// Avoid spurious reports with enormous runsPerTest.
200	>	// A single test case run should never take more than 1 second.
201	>	// But let's cap it at the high end too ...
202	>	final int timeoutMinutes =
203	>	Math.min(15, Math.max(runsPerTest / 60, 1));
204	>	for (TestCase lastTestCase = currentTestCase;;) {
205	>	try { MINUTES.sleep(timeoutMinutes); }
206	>	catch (InterruptedException unexpected) { break; }
207	>	if (lastTestCase == currentTestCase) {
208	>	System.err.printf(
209	>	"Looks like we're stuck running test: %s%n",
210	>	lastTestCase);
211	>	//                     System.err.printf(
212	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
213	>	//                         lastTestCase, currentRun, runsPerTest);
214	>	//                     System.err.println("availableProcessors=" +
215	>	//                         Runtime.getRuntime().availableProcessors());
216	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
217	>	dumpTestThreads();
218	>	// one stack dump is probably enough; more would be spam
219	>	break;
220	>	}
221	>	lastTestCase = currentTestCase;
222	>	}}};
223	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
224	>	thread.setDaemon(true);
225	>	thread.start();
226	>	}
227	>
228	>	//     public static String cpuModel() {
229	>	//         try {
230	>	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
231	>	//                 .matcher(new String(
232	>	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
233	>	//             matcher.find();
234	>	//             return matcher.group(1);
235	>	//         } catch (Exception ex) { return null; }
236	>	//     }
237	>
238	>	public void runBare() throws Throwable {
239	>	currentTestCase = this;
240		if (methodFilter == null
241	<	|| methodFilter.matcher(toString()).find()) {
242	<	for (int i = 0; i < runsPerTest; i++) {
243	<	if (profileTests)
244	<	runTestProfiled();
245	<	else
246	<	super.runTest();
247	<	}
241	>	|| methodFilter.matcher(toString()).find())
242	>	super.runBare();
243	>	}
244	>
245	>	protected void runTest() throws Throwable {
246	>	for (int i = 0; i < runsPerTest; i++) {
247	>	// currentRun = i;
248	>	if (profileTests)
249	>	runTestProfiled();
250	>	else
251	>	super.runTest();
252		}
253		}
254
#	Line 219 | Line 273 | public class JSR166TestCase extends Test
273		main(suite(), args);
274		}
275
276	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
277	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
278	+	long runTime;
279	+	public void startTest(Test test) {}
280	+	protected void printHeader(long runTime) {
281	+	this.runTime = runTime; // defer printing for later
282	+	}
283	+	protected void printFooter(TestResult result) {
284	+	if (result.wasSuccessful()) {
285	+	getWriter().println("OK (" + result.runCount() + " tests)"
286	+	+ "  Time: " + elapsedTimeAsString(runTime));
287	+	} else {
288	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
289	+	super.printFooter(result);
290	+	}
291	+	}
292	+	}
293	+
294	+	/**
295	+	* Returns a TestRunner that doesn't bother with unnecessary
296	+	* fluff, like printing a "." for each test case.
297	+	*/
298	+	static junit.textui.TestRunner newPithyTestRunner() {
299	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
300	+	runner.setPrinter(new PithyResultPrinter(System.out));
301	+	return runner;
302	+	}
303	+
304		/**
305		* Runs all unit tests in the given test suite.
306		* Actual behavior influenced by jsr166.* system properties.
#	Line 230 | Line 312 | public class JSR166TestCase extends Test
312		System.setSecurityManager(new SecurityManager());
313		}
314		for (int i = 0; i < suiteRuns; i++) {
315	<	TestResult result = junit.textui.TestRunner.run(suite);
315	>	TestResult result = newPithyTestRunner().doRun(suite);
316		if (!result.wasSuccessful())
317		System.exit(1);
318		System.gc();
#	Line 457 | Line 539 | public class JSR166TestCase extends Test
539		} else {
540		return new TestSuite();
541		}
460	–
542		}
543
544		// Delays for timing-dependent tests, in milliseconds.
#	Line 515 | Line 596 | public class JSR166TestCase extends Test
596		* the same test have no effect.
597		*/
598		public void threadRecordFailure(Throwable t) {
599	+	System.err.println(t);
600	+	dumpTestThreads();
601		threadFailure.compareAndSet(null, t);
602		}
603
#	Line 525 | Line 608 | public class JSR166TestCase extends Test
608		void tearDownFail(String format, Object... args) {
609		String msg = toString() + ": " + String.format(format, args);
610		System.err.println(msg);
611	<	printAllStackTraces();
611	>	dumpTestThreads();
612		throw new AssertionFailedError(msg);
613		}
614
#	Line 562 | Line 645 | public class JSR166TestCase extends Test
645		}
646
647		/**
648	<	* Finds missing try { ... } finally { joinPool(e); }
648	>	* Finds missing PoolCleaners
649		*/
650		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
651		Thread[] survivors = new Thread[7];
#	Line 594 | Line 677 | public class JSR166TestCase extends Test
677		fail(reason);
678		} catch (AssertionFailedError t) {
679		threadRecordFailure(t);
680	<	fail(reason);
680	>	throw t;
681		}
682		}
683
#	Line 721 | Line 804 | public class JSR166TestCase extends Test
804		/**
805		* Delays, via Thread.sleep, for the given millisecond delay, but
806		* if the sleep is shorter than specified, may re-sleep or yield
807	<	* until time elapses.
807	>	* until time elapses.  Ensures that the given time, as measured
808	>	* by System.nanoTime(), has elapsed.
809		*/
810		static void delay(long millis) throws InterruptedException {
811	<	long startTime = System.nanoTime();
812	<	long ns = millis * 1000 * 1000;
813	<	for (;;) {
811	>	long nanos = millis * (1000 * 1000);
812	>	final long wakeupTime = System.nanoTime() + nanos;
813	>	do {
814		if (millis > 0L)
815		Thread.sleep(millis);
816		else // too short to sleep
817		Thread.yield();
818	<	long d = ns - (System.nanoTime() - startTime);
819	<	if (d > 0L)
820	<	millis = d / (1000 * 1000);
821	<	else
822	<	break;
818	>	nanos = wakeupTime - System.nanoTime();
819	>	millis = nanos / (1000 * 1000);
820	>	} while (nanos >= 0L);
821	>	}
822	>
823	>	/**
824	>	* Allows use of try-with-resources with per-test thread pools.
825	>	*/
826	>	class PoolCleaner implements AutoCloseable {
827	>	private final ExecutorService pool;
828	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
829	>	public void close() { joinPool(pool); }
830	>	}
831	>
832	>	/**
833	>	* An extension of PoolCleaner that has an action to release the pool.
834	>	*/
835	>	class PoolCleanerWithReleaser extends PoolCleaner {
836	>	private final Runnable releaser;
837	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
838	>	super(pool);
839	>	this.releaser = releaser;
840		}
841	+	public void close() {
842	+	try {
843	+	releaser.run();
844	+	} finally {
845	+	super.close();
846	+	}
847	+	}
848	+	}
849	+
850	+	PoolCleaner cleaner(ExecutorService pool) {
851	+	return new PoolCleaner(pool);
852	+	}
853	+
854	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
855	+	return new PoolCleanerWithReleaser(pool, releaser);
856	+	}
857	+
858	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
859	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
860	+	}
861	+
862	+	Runnable releaser(final CountDownLatch latch) {
863	+	return new Runnable() { public void run() {
864	+	do { latch.countDown(); }
865	+	while (latch.getCount() > 0);
866	+	}};
867		}
868
869		/**
#	Line 745 | Line 872 | public class JSR166TestCase extends Test
872		void joinPool(ExecutorService pool) {
873		try {
874		pool.shutdown();
875	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
876	<	fail("ExecutorService " + pool +
877	<	" did not terminate in a timely manner");
875	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
876	>	try {
877	>	threadFail("ExecutorService " + pool +
878	>	" did not terminate in a timely manner");
879	>	} finally {
880	>	// last resort, for the benefit of subsequent tests
881	>	pool.shutdownNow();
882	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
883	>	}
884	>	}
885		} catch (SecurityException ok) {
886		// Allowed in case test doesn't have privs
887		} catch (InterruptedException fail) {
888	<	fail("Unexpected InterruptedException");
888	>	threadFail("Unexpected InterruptedException");
889		}
890		}
891
#	Line 765 | Line 899 | public class JSR166TestCase extends Test
899		*/
900		void testInParallel(Action ... actions) {
901		ExecutorService pool = Executors.newCachedThreadPool();
902	<	try {
902	>	try (PoolCleaner cleaner = cleaner(pool)) {
903		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
904		for (final Action action : actions)
905		futures.add(pool.submit(new CheckedRunnable() {
#	Line 778 | Line 912 | public class JSR166TestCase extends Test
912		} catch (Exception ex) {
913		threadUnexpectedException(ex);
914		}
781	–	} finally {
782	–	joinPool(pool);
915		}
916		}
917
918		/**
919	<	* A debugging tool to print all stack traces, as jstack does.
919	>	* A debugging tool to print stack traces of most threads, as jstack does.
920	>	* Uninteresting threads are filtered out.
921		*/
922	<	static void printAllStackTraces() {
923	<	for (ThreadInfo info :
924	<	ManagementFactory.getThreadMXBean()
925	<	.dumpAllThreads(true, true))
922	>	static void dumpTestThreads() {
923	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
924	>	System.err.println("------ stacktrace dump start ------");
925	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
926	>	String name = info.getThreadName();
927	>	if ("Signal Dispatcher".equals(name))
928	>	continue;
929	>	if ("Reference Handler".equals(name)
930	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
931	>	continue;
932	>	if ("Finalizer".equals(name)
933	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
934	>	continue;
935	>	if ("checkForWedgedTest".equals(name))
936	>	continue;
937		System.err.print(info);
938	+	}
939	+	System.err.println("------ stacktrace dump end ------");
940		}
941
942		/**
#	Line 810 | Line 956 | public class JSR166TestCase extends Test
956		delay(millis);
957		assertTrue(thread.isAlive());
958		} catch (InterruptedException fail) {
959	<	fail("Unexpected InterruptedException");
959	>	threadFail("Unexpected InterruptedException");
960		}
961		}
962
#	Line 832 | Line 978 | public class JSR166TestCase extends Test
978		for (Thread thread : threads)
979		assertTrue(thread.isAlive());
980		} catch (InterruptedException fail) {
981	<	fail("Unexpected InterruptedException");
981	>	threadFail("Unexpected InterruptedException");
982		}
983		}
984
#	Line 1110 | Line 1256 | public class JSR166TestCase extends Test
1256		} finally {
1257		if (t.getState() != Thread.State.TERMINATED) {
1258		t.interrupt();
1259	<	fail("Test timed out");
1259	>	threadFail("timed out waiting for thread to terminate");
1260		}
1261		}
1262		}
#	Line 1251 | Line 1397 | public class JSR166TestCase extends Test
1397		}};
1398		}
1399
1400	<	public Runnable awaiter(final CountDownLatch latch) {
1400	>	public Runnable countDowner(final CountDownLatch latch) {
1401		return new CheckedRunnable() {
1402		public void realRun() throws InterruptedException {
1403	<	await(latch);
1403	>	latch.countDown();
1404		}};
1405		}
1406
1407	+	class LatchAwaiter extends CheckedRunnable {
1408	+	static final int NEW = 0;
1409	+	static final int RUNNING = 1;
1410	+	static final int DONE = 2;
1411	+	final CountDownLatch latch;
1412	+	int state = NEW;
1413	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1414	+	public void realRun() throws InterruptedException {
1415	+	state = 1;
1416	+	await(latch);
1417	+	state = 2;
1418	+	}
1419	+	}
1420	+
1421	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1422	+	return new LatchAwaiter(latch);
1423	+	}
1424	+
1425		public void await(CountDownLatch latch) {
1426		try {
1427	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1427	>	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1428	>	fail("timed out waiting for CountDownLatch for "
1429	>	+ (LONG_DELAY_MS/1000) + " sec");
1430		} catch (Throwable fail) {
1431		threadUnexpectedException(fail);
1432		}
#	Line 1268 | Line 1434 | public class JSR166TestCase extends Test
1434
1435		public void await(Semaphore semaphore) {
1436		try {
1437	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1437	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1438	>	fail("timed out waiting for Semaphore for "
1439	>	+ (LONG_DELAY_MS/1000) + " sec");
1440		} catch (Throwable fail) {
1441		threadUnexpectedException(fail);
1442		}

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