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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.150 by jsr166, Sat Oct 3 19:08:13 2015 UTC vs.
Revision 1.184 by jsr166, Wed Feb 10 00:05:20 2016 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	+	/*
10	+	* @test
11	+	* @summary JSR-166 tck tests
12	+	* @modules java.management
13	+	* @build *
14	+	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
15	+	*/
16	+
17		import static java.util.concurrent.TimeUnit.MILLISECONDS;
18	+	import static java.util.concurrent.TimeUnit.MINUTES;
19		import static java.util.concurrent.TimeUnit.NANOSECONDS;
20
21		import java.io.ByteArrayInputStream;
#	Line 19 | Line 28 | import java.lang.management.ThreadMXBean
28		import java.lang.reflect.Constructor;
29		import java.lang.reflect.Method;
30		import java.lang.reflect.Modifier;
31	+	import java.nio.file.Files;
32	+	import java.nio.file.Paths;
33		import java.security.CodeSource;
34		import java.security.Permission;
35		import java.security.PermissionCollection;
#	Line 51 | Line 62 | import java.util.concurrent.ThreadFactor
62		import java.util.concurrent.ThreadPoolExecutor;
63		import java.util.concurrent.TimeoutException;
64		import java.util.concurrent.atomic.AtomicReference;
65	+	import java.util.regex.Matcher;
66		import java.util.regex.Pattern;
67
68		import junit.framework.AssertionFailedError;
#	Line 108 | Line 120 | import junit.framework.TestSuite;
120		* methods as there are exceptions the method can throw. Sometimes
121		* there are multiple tests per JSR166 method when the different
122		* "normal" behaviors differ significantly. And sometimes testcases
123	<	* cover multiple methods when they cannot be tested in
112	<	* isolation.
123	>	* cover multiple methods when they cannot be tested in isolation.
124		*
125		* <li>The documentation style for testcases is to provide as javadoc
126		* a simple sentence or two describing the property that the testcase
#	Line 172 | Line 183 | public class JSR166TestCase extends Test
183		private static final int suiteRuns =
184		Integer.getInteger("jsr166.suiteRuns", 1);
185
186	+	/**
187	+	* The scaling factor to apply to standard delays used in tests.
188	+	*/
189	+	private static final int delayFactor =
190	+	Integer.getInteger("jsr166.delay.factor", 1);
191	+
192		public JSR166TestCase() { super(); }
193		public JSR166TestCase(String name) { super(name); }
194
#	Line 187 | Line 204 | public class JSR166TestCase extends Test
204		return (regex == null) ? null : Pattern.compile(regex);
205		}
206
207	+	// Instrumentation to debug very rare, but very annoying hung test runs.
208	+	static volatile TestCase currentTestCase;
209	+	// static volatile int currentRun = 0;
210	+	static {
211	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
212	+	// Avoid spurious reports with enormous runsPerTest.
213	+	// A single test case run should never take more than 1 second.
214	+	// But let's cap it at the high end too ...
215	+	final int timeoutMinutes =
216	+	Math.min(15, Math.max(runsPerTest / 60, 1));
217	+	for (TestCase lastTestCase = currentTestCase;;) {
218	+	try { MINUTES.sleep(timeoutMinutes); }
219	+	catch (InterruptedException unexpected) { break; }
220	+	if (lastTestCase == currentTestCase) {
221	+	System.err.printf(
222	+	"Looks like we're stuck running test: %s%n",
223	+	lastTestCase);
224	+	//                     System.err.printf(
225	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
226	+	//                         lastTestCase, currentRun, runsPerTest);
227	+	//                     System.err.println("availableProcessors=" +
228	+	//                         Runtime.getRuntime().availableProcessors());
229	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
230	+	dumpTestThreads();
231	+	// one stack dump is probably enough; more would be spam
232	+	break;
233	+	}
234	+	lastTestCase = currentTestCase;
235	+	}}};
236	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
237	+	thread.setDaemon(true);
238	+	thread.start();
239	+	}
240	+
241	+	//     public static String cpuModel() {
242	+	//         try {
243	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
244	+	//                 .matcher(new String(
245	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
246	+	//             matcher.find();
247	+	//             return matcher.group(1);
248	+	//         } catch (Exception ex) { return null; }
249	+	//     }
250	+
251		public void runBare() throws Throwable {
252	+	currentTestCase = this;
253		if (methodFilter == null
254		|| methodFilter.matcher(toString()).find())
255		super.runBare();
#	Line 195 | Line 257 | public class JSR166TestCase extends Test
257
258		protected void runTest() throws Throwable {
259		for (int i = 0; i < runsPerTest; i++) {
260	+	// currentRun = i;
261		if (profileTests)
262		runTestProfiled();
263		else
#	Line 223 | Line 286 | public class JSR166TestCase extends Test
286		main(suite(), args);
287		}
288
289	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
290	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
291	+	long runTime;
292	+	public void startTest(Test test) {}
293	+	protected void printHeader(long runTime) {
294	+	this.runTime = runTime; // defer printing for later
295	+	}
296	+	protected void printFooter(TestResult result) {
297	+	if (result.wasSuccessful()) {
298	+	getWriter().println("OK (" + result.runCount() + " tests)"
299	+	+ "  Time: " + elapsedTimeAsString(runTime));
300	+	} else {
301	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
302	+	super.printFooter(result);
303	+	}
304	+	}
305	+	}
306	+
307	+	/**
308	+	* Returns a TestRunner that doesn't bother with unnecessary
309	+	* fluff, like printing a "." for each test case.
310	+	*/
311	+	static junit.textui.TestRunner newPithyTestRunner() {
312	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
313	+	runner.setPrinter(new PithyResultPrinter(System.out));
314	+	return runner;
315	+	}
316	+
317		/**
318		* Runs all unit tests in the given test suite.
319		* Actual behavior influenced by jsr166.* system properties.
#	Line 234 | Line 325 | public class JSR166TestCase extends Test
325		System.setSecurityManager(new SecurityManager());
326		}
327		for (int i = 0; i < suiteRuns; i++) {
328	<	TestResult result = junit.textui.TestRunner.run(suite);
328	>	TestResult result = newPithyTestRunner().doRun(suite);
329		if (!result.wasSuccessful())
330		System.exit(1);
331		System.gc();
#	Line 461 | Line 552 | public class JSR166TestCase extends Test
552		} else {
553		return new TestSuite();
554		}
464	–
555		}
556
557		// Delays for timing-dependent tests, in milliseconds.
#	Line 472 | Line 562 | public class JSR166TestCase extends Test
562		public static long LONG_DELAY_MS;
563
564		/**
565	<	* Returns the shortest timed delay. This could
566	<	* be reimplemented to use for example a Property.
565	>	* Returns the shortest timed delay. This can be scaled up for
566	>	* slow machines using the jsr166.delay.factor system property.
567		*/
568		protected long getShortDelay() {
569	<	return 50;
569	>	return 50 * delayFactor;
570		}
571
572		/**
#	Line 519 | Line 609 | public class JSR166TestCase extends Test
609		* the same test have no effect.
610		*/
611		public void threadRecordFailure(Throwable t) {
612	+	System.err.println(t);
613	+	dumpTestThreads();
614		threadFailure.compareAndSet(null, t);
615		}
616
#	Line 529 | Line 621 | public class JSR166TestCase extends Test
621		void tearDownFail(String format, Object... args) {
622		String msg = toString() + ": " + String.format(format, args);
623		System.err.println(msg);
624	<	printAllStackTraces();
624	>	dumpTestThreads();
625		throw new AssertionFailedError(msg);
626		}
627
#	Line 566 | Line 658 | public class JSR166TestCase extends Test
658		}
659
660		/**
661	<	* Finds missing try { ... } finally { joinPool(e); }
661	>	* Finds missing PoolCleaners
662		*/
663		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
664		Thread[] survivors = new Thread[7];
#	Line 598 | Line 690 | public class JSR166TestCase extends Test
690		fail(reason);
691		} catch (AssertionFailedError t) {
692		threadRecordFailure(t);
693	<	fail(reason);
693	>	throw t;
694		}
695		}
696
#	Line 725 | Line 817 | public class JSR166TestCase extends Test
817		/**
818		* Delays, via Thread.sleep, for the given millisecond delay, but
819		* if the sleep is shorter than specified, may re-sleep or yield
820	<	* until time elapses.
820	>	* until time elapses.  Ensures that the given time, as measured
821	>	* by System.nanoTime(), has elapsed.
822		*/
823		static void delay(long millis) throws InterruptedException {
824	<	long startTime = System.nanoTime();
825	<	long ns = millis * 1000 * 1000;
826	<	for (;;) {
824	>	long nanos = millis * (1000 * 1000);
825	>	final long wakeupTime = System.nanoTime() + nanos;
826	>	do {
827		if (millis > 0L)
828		Thread.sleep(millis);
829		else // too short to sleep
830		Thread.yield();
831	<	long d = ns - (System.nanoTime() - startTime);
832	<	if (d > 0L)
833	<	millis = d / (1000 * 1000);
741	<	else
742	<	break;
743	<	}
831	>	nanos = wakeupTime - System.nanoTime();
832	>	millis = nanos / (1000 * 1000);
833	>	} while (nanos >= 0L);
834		}
835
836		/**
837		* Allows use of try-with-resources with per-test thread pools.
838		*/
839	<	static class PoolCloser<T extends ExecutorService>
840	<	implements AutoCloseable {
841	<	public final T pool;
752	<	public PoolCloser(T pool) { this.pool = pool; }
839	>	class PoolCleaner implements AutoCloseable {
840	>	private final ExecutorService pool;
841	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
842		public void close() { joinPool(pool); }
843		}
844
845		/**
846	+	* An extension of PoolCleaner that has an action to release the pool.
847	+	*/
848	+	class PoolCleanerWithReleaser extends PoolCleaner {
849	+	private final Runnable releaser;
850	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
851	+	super(pool);
852	+	this.releaser = releaser;
853	+	}
854	+	public void close() {
855	+	try {
856	+	releaser.run();
857	+	} finally {
858	+	super.close();
859	+	}
860	+	}
861	+	}
862	+
863	+	PoolCleaner cleaner(ExecutorService pool) {
864	+	return new PoolCleaner(pool);
865	+	}
866	+
867	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
868	+	return new PoolCleanerWithReleaser(pool, releaser);
869	+	}
870	+
871	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
872	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
873	+	}
874	+
875	+	Runnable releaser(final CountDownLatch latch) {
876	+	return new Runnable() { public void run() {
877	+	do { latch.countDown(); }
878	+	while (latch.getCount() > 0);
879	+	}};
880	+	}
881	+
882	+	/**
883		* Waits out termination of a thread pool or fails doing so.
884		*/
885	<	static void joinPool(ExecutorService pool) {
885	>	void joinPool(ExecutorService pool) {
886		try {
887		pool.shutdown();
888	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
889	<	fail("ExecutorService " + pool +
890	<	" did not terminate in a timely manner");
888	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
889	>	try {
890	>	threadFail("ExecutorService " + pool +
891	>	" did not terminate in a timely manner");
892	>	} finally {
893	>	// last resort, for the benefit of subsequent tests
894	>	pool.shutdownNow();
895	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
896	>	}
897	>	}
898		} catch (SecurityException ok) {
899		// Allowed in case test doesn't have privs
900		} catch (InterruptedException fail) {
901	<	fail("Unexpected InterruptedException");
901	>	threadFail("Unexpected InterruptedException");
902		}
903		}
904
#	Line 779 | Line 912 | public class JSR166TestCase extends Test
912		*/
913		void testInParallel(Action ... actions) {
914		ExecutorService pool = Executors.newCachedThreadPool();
915	<	try {
915	>	try (PoolCleaner cleaner = cleaner(pool)) {
916		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
917		for (final Action action : actions)
918		futures.add(pool.submit(new CheckedRunnable() {
#	Line 792 | Line 925 | public class JSR166TestCase extends Test
925		} catch (Exception ex) {
926		threadUnexpectedException(ex);
927		}
795	–	} finally {
796	–	joinPool(pool);
928		}
929		}
930
931		/**
932	<	* A debugging tool to print all stack traces, as jstack does.
932	>	* A debugging tool to print stack traces of most threads, as jstack does.
933		* Uninteresting threads are filtered out.
934		*/
935	<	static void printAllStackTraces() {
935	>	static void dumpTestThreads() {
936		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
937		System.err.println("------ stacktrace dump start ------");
938		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
#	Line 814 | Line 945 | public class JSR166TestCase extends Test
945		if ("Finalizer".equals(name)
946		&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
947		continue;
948	+	if ("checkForWedgedTest".equals(name))
949	+	continue;
950		System.err.print(info);
951		}
952		System.err.println("------ stacktrace dump end ------");
#	Line 836 | Line 969 | public class JSR166TestCase extends Test
969		delay(millis);
970		assertTrue(thread.isAlive());
971		} catch (InterruptedException fail) {
972	<	fail("Unexpected InterruptedException");
972	>	threadFail("Unexpected InterruptedException");
973		}
974		}
975
#	Line 858 | Line 991 | public class JSR166TestCase extends Test
991		for (Thread thread : threads)
992		assertTrue(thread.isAlive());
993		} catch (InterruptedException fail) {
994	<	fail("Unexpected InterruptedException");
994	>	threadFail("Unexpected InterruptedException");
995		}
996		}
997
#	Line 1136 | Line 1269 | public class JSR166TestCase extends Test
1269		} finally {
1270		if (t.getState() != Thread.State.TERMINATED) {
1271		t.interrupt();
1272	<	fail("Test timed out");
1272	>	threadFail("timed out waiting for thread to terminate");
1273		}
1274		}
1275		}
#	Line 1284 | Line 1417 | public class JSR166TestCase extends Test
1417		}};
1418		}
1419
1420	<	public Runnable awaiter(final CountDownLatch latch) {
1421	<	return new CheckedRunnable() {
1422	<	public void realRun() throws InterruptedException {
1423	<	await(latch);
1424	<	}};
1420	>	class LatchAwaiter extends CheckedRunnable {
1421	>	static final int NEW = 0;
1422	>	static final int RUNNING = 1;
1423	>	static final int DONE = 2;
1424	>	final CountDownLatch latch;
1425	>	int state = NEW;
1426	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1427	>	public void realRun() throws InterruptedException {
1428	>	state = 1;
1429	>	await(latch);
1430	>	state = 2;
1431	>	}
1432	>	}
1433	>
1434	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1435	>	return new LatchAwaiter(latch);
1436		}
1437
1438		public void await(CountDownLatch latch) {
1439		try {
1440	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1440	>	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1441	>	fail("timed out waiting for CountDownLatch for "
1442	>	+ (LONG_DELAY_MS/1000) + " sec");
1443		} catch (Throwable fail) {
1444		threadUnexpectedException(fail);
1445		}
#	Line 1301 | Line 1447 | public class JSR166TestCase extends Test
1447
1448		public void await(Semaphore semaphore) {
1449		try {
1450	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1450	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1451	>	fail("timed out waiting for Semaphore for "
1452	>	+ (LONG_DELAY_MS/1000) + " sec");
1453		} catch (Throwable fail) {
1454		threadUnexpectedException(fail);
1455		}

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