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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 1.191 by jsr166, Sat May 21 22:29:45 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 50 | Line 61 | import java.util.concurrent.Semaphore;
61		import java.util.concurrent.ThreadFactory;
62		import java.util.concurrent.ThreadPoolExecutor;
63		import java.util.concurrent.TimeoutException;
64	+	import java.util.concurrent.atomic.AtomicBoolean;
65		import java.util.concurrent.atomic.AtomicReference;
66	+	import java.util.regex.Matcher;
67		import java.util.regex.Pattern;
68
69		import junit.framework.AssertionFailedError;
#	Line 108 | Line 121 | import junit.framework.TestSuite;
121		* methods as there are exceptions the method can throw. Sometimes
122		* there are multiple tests per JSR166 method when the different
123		* "normal" behaviors differ significantly. And sometimes testcases
124	<	* cover multiple methods when they cannot be tested in
112	<	* isolation.
124	>	* cover multiple methods when they cannot be tested in isolation.
125		*
126		* <li>The documentation style for testcases is to provide as javadoc
127		* a simple sentence or two describing the property that the testcase
#	Line 172 | Line 184 | public class JSR166TestCase extends Test
184		private static final int suiteRuns =
185		Integer.getInteger("jsr166.suiteRuns", 1);
186
187	+	/**
188	+	* Returns the value of the system property, or NaN if not defined.
189	+	*/
190	+	private static float systemPropertyValue(String name) {
191	+	String floatString = System.getProperty(name);
192	+	if (floatString == null)
193	+	return Float.NaN;
194	+	try {
195	+	return Float.parseFloat(floatString);
196	+	} catch (NumberFormatException ex) {
197	+	throw new IllegalArgumentException(
198	+	String.format("Bad float value in system property %s=%s",
199	+	name, floatString));
200	+	}
201	+	}
202	+
203	+	/**
204	+	* The scaling factor to apply to standard delays used in tests.
205	+	* May be initialized from any of:
206	+	* - the "jsr166.delay.factor" system property
207	+	* - the "test.timeout.factor" system property (as used by jtreg)
208	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
209	+	* - hard-coded fuzz factor when using a known slowpoke VM
210	+	*/
211	+	private static final float delayFactor = delayFactor();
212	+
213	+	private static float delayFactor() {
214	+	float x;
215	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
216	+	return x;
217	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
218	+	return x;
219	+	String prop = System.getProperty("java.vm.version");
220	+	if (prop != null && prop.matches(".*debug.*"))
221	+	return 4.0f; // How much slower is fastdebug than product?!
222	+	return 1.0f;
223	+	}
224	+
225		public JSR166TestCase() { super(); }
226		public JSR166TestCase(String name) { super(name); }
227
#	Line 187 | Line 237 | public class JSR166TestCase extends Test
237		return (regex == null) ? null : Pattern.compile(regex);
238		}
239
240	+	// Instrumentation to debug very rare, but very annoying hung test runs.
241	+	static volatile TestCase currentTestCase;
242	+	// static volatile int currentRun = 0;
243	+	static {
244	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
245	+	// Avoid spurious reports with enormous runsPerTest.
246	+	// A single test case run should never take more than 1 second.
247	+	// But let's cap it at the high end too ...
248	+	final int timeoutMinutes =
249	+	Math.min(15, Math.max(runsPerTest / 60, 1));
250	+	for (TestCase lastTestCase = currentTestCase;;) {
251	+	try { MINUTES.sleep(timeoutMinutes); }
252	+	catch (InterruptedException unexpected) { break; }
253	+	if (lastTestCase == currentTestCase) {
254	+	System.err.printf(
255	+	"Looks like we're stuck running test: %s%n",
256	+	lastTestCase);
257	+	//                     System.err.printf(
258	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
259	+	//                         lastTestCase, currentRun, runsPerTest);
260	+	//                     System.err.println("availableProcessors=" +
261	+	//                         Runtime.getRuntime().availableProcessors());
262	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
263	+	dumpTestThreads();
264	+	// one stack dump is probably enough; more would be spam
265	+	break;
266	+	}
267	+	lastTestCase = currentTestCase;
268	+	}}};
269	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
270	+	thread.setDaemon(true);
271	+	thread.start();
272	+	}
273	+
274	+	//     public static String cpuModel() {
275	+	//         try {
276	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
277	+	//                 .matcher(new String(
278	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
279	+	//             matcher.find();
280	+	//             return matcher.group(1);
281	+	//         } catch (Exception ex) { return null; }
282	+	//     }
283	+
284		public void runBare() throws Throwable {
285	+	currentTestCase = this;
286		if (methodFilter == null
287		|| methodFilter.matcher(toString()).find())
288		super.runBare();
#	Line 195 | Line 290 | public class JSR166TestCase extends Test
290
291		protected void runTest() throws Throwable {
292		for (int i = 0; i < runsPerTest; i++) {
293	+	// currentRun = i;
294		if (profileTests)
295		runTestProfiled();
296		else
#	Line 223 | Line 319 | public class JSR166TestCase extends Test
319		main(suite(), args);
320		}
321
322	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
323	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
324	+	long runTime;
325	+	public void startTest(Test test) {}
326	+	protected void printHeader(long runTime) {
327	+	this.runTime = runTime; // defer printing for later
328	+	}
329	+	protected void printFooter(TestResult result) {
330	+	if (result.wasSuccessful()) {
331	+	getWriter().println("OK (" + result.runCount() + " tests)"
332	+	+ "  Time: " + elapsedTimeAsString(runTime));
333	+	} else {
334	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
335	+	super.printFooter(result);
336	+	}
337	+	}
338	+	}
339	+
340	+	/**
341	+	* Returns a TestRunner that doesn't bother with unnecessary
342	+	* fluff, like printing a "." for each test case.
343	+	*/
344	+	static junit.textui.TestRunner newPithyTestRunner() {
345	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
346	+	runner.setPrinter(new PithyResultPrinter(System.out));
347	+	return runner;
348	+	}
349	+
350		/**
351		* Runs all unit tests in the given test suite.
352		* Actual behavior influenced by jsr166.* system properties.
#	Line 234 | Line 358 | public class JSR166TestCase extends Test
358		System.setSecurityManager(new SecurityManager());
359		}
360		for (int i = 0; i < suiteRuns; i++) {
361	<	TestResult result = junit.textui.TestRunner.run(suite);
361	>	TestResult result = newPithyTestRunner().doRun(suite);
362		if (!result.wasSuccessful())
363		System.exit(1);
364		System.gc();
#	Line 387 | Line 511 | public class JSR166TestCase extends Test
511		"StampedLockTest",
512		"SubmissionPublisherTest",
513		"ThreadLocalRandom8Test",
514	+	"TimeUnit8Test",
515		};
516		addNamedTestClasses(suite, java8TestClassNames);
517		}
#	Line 461 | Line 586 | public class JSR166TestCase extends Test
586		} else {
587		return new TestSuite();
588		}
464	–
589		}
590
591		// Delays for timing-dependent tests, in milliseconds.
#	Line 472 | Line 596 | public class JSR166TestCase extends Test
596		public static long LONG_DELAY_MS;
597
598		/**
599	<	* Returns the shortest timed delay. This could
600	<	* be reimplemented to use for example a Property.
599	>	* Returns the shortest timed delay. This can be scaled up for
600	>	* slow machines using the jsr166.delay.factor system property,
601	>	* or via jtreg's -timeoutFactor: flag.
602	>	* http://openjdk.java.net/jtreg/command-help.html
603		*/
604		protected long getShortDelay() {
605	<	return 50;
605	>	return (long) (50 * delayFactor);
606		}
607
608		/**
#	Line 519 | Line 645 | public class JSR166TestCase extends Test
645		* the same test have no effect.
646		*/
647		public void threadRecordFailure(Throwable t) {
648	+	System.err.println(t);
649	+	dumpTestThreads();
650		threadFailure.compareAndSet(null, t);
651		}
652
#	Line 529 | Line 657 | public class JSR166TestCase extends Test
657		void tearDownFail(String format, Object... args) {
658		String msg = toString() + ": " + String.format(format, args);
659		System.err.println(msg);
660	<	printAllStackTraces();
660	>	dumpTestThreads();
661		throw new AssertionFailedError(msg);
662		}
663
#	Line 566 | Line 694 | public class JSR166TestCase extends Test
694		}
695
696		/**
697	<	* Finds missing try { ... } finally { joinPool(e); }
697	>	* Finds missing PoolCleaners
698		*/
699		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
700		Thread[] survivors = new Thread[7];
#	Line 598 | Line 726 | public class JSR166TestCase extends Test
726		fail(reason);
727		} catch (AssertionFailedError t) {
728		threadRecordFailure(t);
729	<	fail(reason);
729	>	throw t;
730		}
731		}
732
#	Line 725 | Line 853 | public class JSR166TestCase extends Test
853		/**
854		* Delays, via Thread.sleep, for the given millisecond delay, but
855		* if the sleep is shorter than specified, may re-sleep or yield
856	<	* until time elapses.
856	>	* until time elapses.  Ensures that the given time, as measured
857	>	* by System.nanoTime(), has elapsed.
858		*/
859		static void delay(long millis) throws InterruptedException {
860	<	long startTime = System.nanoTime();
861	<	long ns = millis * 1000 * 1000;
862	<	for (;;) {
860	>	long nanos = millis * (1000 * 1000);
861	>	final long wakeupTime = System.nanoTime() + nanos;
862	>	do {
863		if (millis > 0L)
864		Thread.sleep(millis);
865		else // too short to sleep
866		Thread.yield();
867	<	long d = ns - (System.nanoTime() - startTime);
868	<	if (d > 0L)
869	<	millis = d / (1000 * 1000);
741	<	else
742	<	break;
743	<	}
867	>	nanos = wakeupTime - System.nanoTime();
868	>	millis = nanos / (1000 * 1000);
869	>	} while (nanos >= 0L);
870		}
871
872		/**
873		* Allows use of try-with-resources with per-test thread pools.
874		*/
875	<	static class PoolCloser<T extends ExecutorService>
876	<	implements AutoCloseable {
877	<	public final T pool;
752	<	public PoolCloser(T pool) { this.pool = pool; }
875	>	class PoolCleaner implements AutoCloseable {
876	>	private final ExecutorService pool;
877	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
878		public void close() { joinPool(pool); }
879		}
880
881		/**
882	+	* An extension of PoolCleaner that has an action to release the pool.
883	+	*/
884	+	class PoolCleanerWithReleaser extends PoolCleaner {
885	+	private final Runnable releaser;
886	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
887	+	super(pool);
888	+	this.releaser = releaser;
889	+	}
890	+	public void close() {
891	+	try {
892	+	releaser.run();
893	+	} finally {
894	+	super.close();
895	+	}
896	+	}
897	+	}
898	+
899	+	PoolCleaner cleaner(ExecutorService pool) {
900	+	return new PoolCleaner(pool);
901	+	}
902	+
903	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
904	+	return new PoolCleanerWithReleaser(pool, releaser);
905	+	}
906	+
907	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
908	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
909	+	}
910	+
911	+	Runnable releaser(final CountDownLatch latch) {
912	+	return new Runnable() { public void run() {
913	+	do { latch.countDown(); }
914	+	while (latch.getCount() > 0);
915	+	}};
916	+	}
917	+
918	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
919	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
920	+	}
921	+
922	+	Runnable releaser(final AtomicBoolean flag) {
923	+	return new Runnable() { public void run() { flag.set(true); }};
924	+	}
925	+
926	+	/**
927		* Waits out termination of a thread pool or fails doing so.
928		*/
929	<	static void joinPool(ExecutorService pool) {
929	>	void joinPool(ExecutorService pool) {
930		try {
931		pool.shutdown();
932	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
933	<	fail("ExecutorService " + pool +
934	<	" did not terminate in a timely manner");
932	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
933	>	try {
934	>	threadFail("ExecutorService " + pool +
935	>	" did not terminate in a timely manner");
936	>	} finally {
937	>	// last resort, for the benefit of subsequent tests
938	>	pool.shutdownNow();
939	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
940	>	}
941	>	}
942		} catch (SecurityException ok) {
943		// Allowed in case test doesn't have privs
944		} catch (InterruptedException fail) {
945	<	fail("Unexpected InterruptedException");
945	>	threadFail("Unexpected InterruptedException");
946		}
947		}
948
#	Line 779 | Line 956 | public class JSR166TestCase extends Test
956		*/
957		void testInParallel(Action ... actions) {
958		ExecutorService pool = Executors.newCachedThreadPool();
959	<	try {
959	>	try (PoolCleaner cleaner = cleaner(pool)) {
960		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
961		for (final Action action : actions)
962		futures.add(pool.submit(new CheckedRunnable() {
#	Line 792 | Line 969 | public class JSR166TestCase extends Test
969		} catch (Exception ex) {
970		threadUnexpectedException(ex);
971		}
795	–	} finally {
796	–	joinPool(pool);
972		}
973		}
974
975		/**
976	<	* A debugging tool to print all stack traces, as jstack does.
976	>	* A debugging tool to print stack traces of most threads, as jstack does.
977		* Uninteresting threads are filtered out.
978		*/
979	<	static void printAllStackTraces() {
979	>	static void dumpTestThreads() {
980		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
981		System.err.println("------ stacktrace dump start ------");
982		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
#	Line 814 | Line 989 | public class JSR166TestCase extends Test
989		if ("Finalizer".equals(name)
990		&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
991		continue;
992	+	if ("checkForWedgedTest".equals(name))
993	+	continue;
994		System.err.print(info);
995		}
996		System.err.println("------ stacktrace dump end ------");
#	Line 836 | Line 1013 | public class JSR166TestCase extends Test
1013		delay(millis);
1014		assertTrue(thread.isAlive());
1015		} catch (InterruptedException fail) {
1016	<	fail("Unexpected InterruptedException");
1016	>	threadFail("Unexpected InterruptedException");
1017		}
1018		}
1019
#	Line 858 | Line 1035 | public class JSR166TestCase extends Test
1035		for (Thread thread : threads)
1036		assertTrue(thread.isAlive());
1037		} catch (InterruptedException fail) {
1038	<	fail("Unexpected InterruptedException");
1038	>	threadFail("Unexpected InterruptedException");
1039		}
1040		}
1041
#	Line 1136 | Line 1313 | public class JSR166TestCase extends Test
1313		} finally {
1314		if (t.getState() != Thread.State.TERMINATED) {
1315		t.interrupt();
1316	<	fail("Test timed out");
1316	>	threadFail("timed out waiting for thread to terminate");
1317		}
1318		}
1319		}
#	Line 1284 | Line 1461 | public class JSR166TestCase extends Test
1461		}};
1462		}
1463
1464	<	public Runnable awaiter(final CountDownLatch latch) {
1465	<	return new CheckedRunnable() {
1466	<	public void realRun() throws InterruptedException {
1467	<	await(latch);
1468	<	}};
1464	>	class LatchAwaiter extends CheckedRunnable {
1465	>	static final int NEW = 0;
1466	>	static final int RUNNING = 1;
1467	>	static final int DONE = 2;
1468	>	final CountDownLatch latch;
1469	>	int state = NEW;
1470	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1471	>	public void realRun() throws InterruptedException {
1472	>	state = 1;
1473	>	await(latch);
1474	>	state = 2;
1475	>	}
1476		}
1477
1478	<	public void await(CountDownLatch latch) {
1478	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1479	>	return new LatchAwaiter(latch);
1480	>	}
1481	>
1482	>	public void await(CountDownLatch latch, long timeoutMillis) {
1483		try {
1484	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1484	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1485	>	fail("timed out waiting for CountDownLatch for "
1486	>	+ (timeoutMillis/1000) + " sec");
1487		} catch (Throwable fail) {
1488		threadUnexpectedException(fail);
1489		}
1490		}
1491
1492	+	public void await(CountDownLatch latch) {
1493	+	await(latch, LONG_DELAY_MS);
1494	+	}
1495	+
1496		public void await(Semaphore semaphore) {
1497		try {
1498	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1498	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1499	>	fail("timed out waiting for Semaphore for "
1500	>	+ (LONG_DELAY_MS/1000) + " sec");
1501		} catch (Throwable fail) {
1502		threadUnexpectedException(fail);
1503		}
#	Line 1637 | Line 1833 | public class JSR166TestCase extends Test
1833		} catch (NoSuchElementException success) {}
1834		assertFalse(it.hasNext());
1835		}
1836	+
1837	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1838	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1839	+	}
1840	+
1841	+	public Runnable runnableThrowing(final RuntimeException ex) {
1842	+	return new Runnable() { public void run() { throw ex; }};
1843	+	}
1844		}

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