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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 1.197 by jsr166, Wed Jun 22 14:40:36 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	+	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 -Djsr166.testImplementationDetails=true JSR166TestCase
16	+	*/
17	+
18		import static java.util.concurrent.TimeUnit.MILLISECONDS;
19	+	import static java.util.concurrent.TimeUnit.MINUTES;
20		import static java.util.concurrent.TimeUnit.NANOSECONDS;
21
22		import java.io.ByteArrayInputStream;
#	Line 19 | Line 29 | import java.lang.management.ThreadMXBean
29		import java.lang.reflect.Constructor;
30		import java.lang.reflect.Method;
31		import java.lang.reflect.Modifier;
32	+	import java.nio.file.Files;
33	+	import java.nio.file.Paths;
34		import java.security.CodeSource;
35		import java.security.Permission;
36		import java.security.PermissionCollection;
#	Line 47 | Line 59 | import java.util.concurrent.RecursiveAct
59		import java.util.concurrent.RecursiveTask;
60		import java.util.concurrent.RejectedExecutionHandler;
61		import java.util.concurrent.Semaphore;
62	+	import java.util.concurrent.SynchronousQueue;
63		import java.util.concurrent.ThreadFactory;
64		import java.util.concurrent.ThreadPoolExecutor;
65		import java.util.concurrent.TimeoutException;
66	+	import java.util.concurrent.atomic.AtomicBoolean;
67		import java.util.concurrent.atomic.AtomicReference;
68	+	import java.util.regex.Matcher;
69		import java.util.regex.Pattern;
70
71		import junit.framework.AssertionFailedError;
#	Line 108 | Line 123 | import junit.framework.TestSuite;
123		* methods as there are exceptions the method can throw. Sometimes
124		* there are multiple tests per JSR166 method when the different
125		* "normal" behaviors differ significantly. And sometimes testcases
126	<	* cover multiple methods when they cannot be tested in
112	<	* isolation.
126	>	* cover multiple methods when they cannot be tested in isolation.
127		*
128		* <li>The documentation style for testcases is to provide as javadoc
129		* a simple sentence or two describing the property that the testcase
#	Line 172 | Line 186 | public class JSR166TestCase extends Test
186		private static final int suiteRuns =
187		Integer.getInteger("jsr166.suiteRuns", 1);
188
189	+	/**
190	+	* Returns the value of the system property, or NaN if not defined.
191	+	*/
192	+	private static float systemPropertyValue(String name) {
193	+	String floatString = System.getProperty(name);
194	+	if (floatString == null)
195	+	return Float.NaN;
196	+	try {
197	+	return Float.parseFloat(floatString);
198	+	} catch (NumberFormatException ex) {
199	+	throw new IllegalArgumentException(
200	+	String.format("Bad float value in system property %s=%s",
201	+	name, floatString));
202	+	}
203	+	}
204	+
205	+	/**
206	+	* The scaling factor to apply to standard delays used in tests.
207	+	* May be initialized from any of:
208	+	* - the "jsr166.delay.factor" system property
209	+	* - the "test.timeout.factor" system property (as used by jtreg)
210	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
211	+	* - hard-coded fuzz factor when using a known slowpoke VM
212	+	*/
213	+	private static final float delayFactor = delayFactor();
214	+
215	+	private static float delayFactor() {
216	+	float x;
217	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
218	+	return x;
219	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
220	+	return x;
221	+	String prop = System.getProperty("java.vm.version");
222	+	if (prop != null && prop.matches(".*debug.*"))
223	+	return 4.0f; // How much slower is fastdebug than product?!
224	+	return 1.0f;
225	+	}
226	+
227		public JSR166TestCase() { super(); }
228		public JSR166TestCase(String name) { super(name); }
229
#	Line 187 | Line 239 | public class JSR166TestCase extends Test
239		return (regex == null) ? null : Pattern.compile(regex);
240		}
241
242	+	// Instrumentation to debug very rare, but very annoying hung test runs.
243	+	static volatile TestCase currentTestCase;
244	+	// static volatile int currentRun = 0;
245	+	static {
246	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
247	+	// Avoid spurious reports with enormous runsPerTest.
248	+	// A single test case run should never take more than 1 second.
249	+	// But let's cap it at the high end too ...
250	+	final int timeoutMinutes =
251	+	Math.min(15, Math.max(runsPerTest / 60, 1));
252	+	for (TestCase lastTestCase = currentTestCase;;) {
253	+	try { MINUTES.sleep(timeoutMinutes); }
254	+	catch (InterruptedException unexpected) { break; }
255	+	if (lastTestCase == currentTestCase) {
256	+	System.err.printf(
257	+	"Looks like we're stuck running test: %s%n",
258	+	lastTestCase);
259	+	//                     System.err.printf(
260	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
261	+	//                         lastTestCase, currentRun, runsPerTest);
262	+	//                     System.err.println("availableProcessors=" +
263	+	//                         Runtime.getRuntime().availableProcessors());
264	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
265	+	dumpTestThreads();
266	+	// one stack dump is probably enough; more would be spam
267	+	break;
268	+	}
269	+	lastTestCase = currentTestCase;
270	+	}}};
271	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
272	+	thread.setDaemon(true);
273	+	thread.start();
274	+	}
275	+
276	+	//     public static String cpuModel() {
277	+	//         try {
278	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
279	+	//                 .matcher(new String(
280	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
281	+	//             matcher.find();
282	+	//             return matcher.group(1);
283	+	//         } catch (Exception ex) { return null; }
284	+	//     }
285	+
286		public void runBare() throws Throwable {
287	+	currentTestCase = this;
288		if (methodFilter == null
289		|| methodFilter.matcher(toString()).find())
290		super.runBare();
#	Line 195 | Line 292 | public class JSR166TestCase extends Test
292
293		protected void runTest() throws Throwable {
294		for (int i = 0; i < runsPerTest; i++) {
295	+	// currentRun = i;
296		if (profileTests)
297		runTestProfiled();
298		else
#	Line 223 | Line 321 | public class JSR166TestCase extends Test
321		main(suite(), args);
322		}
323
324	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
325	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
326	+	long runTime;
327	+	public void startTest(Test test) {}
328	+	protected void printHeader(long runTime) {
329	+	this.runTime = runTime; // defer printing for later
330	+	}
331	+	protected void printFooter(TestResult result) {
332	+	if (result.wasSuccessful()) {
333	+	getWriter().println("OK (" + result.runCount() + " tests)"
334	+	+ "  Time: " + elapsedTimeAsString(runTime));
335	+	} else {
336	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
337	+	super.printFooter(result);
338	+	}
339	+	}
340	+	}
341	+
342	+	/**
343	+	* Returns a TestRunner that doesn't bother with unnecessary
344	+	* fluff, like printing a "." for each test case.
345	+	*/
346	+	static junit.textui.TestRunner newPithyTestRunner() {
347	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
348	+	runner.setPrinter(new PithyResultPrinter(System.out));
349	+	return runner;
350	+	}
351	+
352		/**
353		* Runs all unit tests in the given test suite.
354		* Actual behavior influenced by jsr166.* system properties.
#	Line 234 | Line 360 | public class JSR166TestCase extends Test
360		System.setSecurityManager(new SecurityManager());
361		}
362		for (int i = 0; i < suiteRuns; i++) {
363	<	TestResult result = junit.textui.TestRunner.run(suite);
363	>	TestResult result = newPithyTestRunner().doRun(suite);
364		if (!result.wasSuccessful())
365		System.exit(1);
366		System.gc();
#	Line 387 | Line 513 | public class JSR166TestCase extends Test
513		"StampedLockTest",
514		"SubmissionPublisherTest",
515		"ThreadLocalRandom8Test",
516	+	"TimeUnit8Test",
517		};
518		addNamedTestClasses(suite, java8TestClassNames);
519		}
#	Line 394 | Line 521 | public class JSR166TestCase extends Test
521		// Java9+ test classes
522		if (atLeastJava9()) {
523		String[] java9TestClassNames = {
524	<	// Currently empty, but expecting varhandle tests
524	>	"AtomicBoolean9Test",
525	>	"AtomicInteger9Test",
526	>	"AtomicIntegerArray9Test",
527	>	"AtomicLong9Test",
528	>	"AtomicLongArray9Test",
529	>	"AtomicReference9Test",
530	>	"AtomicReferenceArray9Test",
531	>	"ExecutorCompletionService9Test",
532		};
533		addNamedTestClasses(suite, java9TestClassNames);
534		}
#	Line 461 | Line 595 | public class JSR166TestCase extends Test
595		} else {
596		return new TestSuite();
597		}
464	–
598		}
599
600		// Delays for timing-dependent tests, in milliseconds.
#	Line 472 | Line 605 | public class JSR166TestCase extends Test
605		public static long LONG_DELAY_MS;
606
607		/**
608	<	* Returns the shortest timed delay. This could
609	<	* be reimplemented to use for example a Property.
608	>	* Returns the shortest timed delay. This can be scaled up for
609	>	* slow machines using the jsr166.delay.factor system property,
610	>	* or via jtreg's -timeoutFactor: flag.
611	>	* http://openjdk.java.net/jtreg/command-help.html
612		*/
613		protected long getShortDelay() {
614	<	return 50;
614	>	return (long) (50 * delayFactor);
615		}
616
617		/**
#	Line 519 | Line 654 | public class JSR166TestCase extends Test
654		* the same test have no effect.
655		*/
656		public void threadRecordFailure(Throwable t) {
657	+	System.err.println(t);
658	+	dumpTestThreads();
659		threadFailure.compareAndSet(null, t);
660		}
661
#	Line 529 | Line 666 | public class JSR166TestCase extends Test
666		void tearDownFail(String format, Object... args) {
667		String msg = toString() + ": " + String.format(format, args);
668		System.err.println(msg);
669	<	printAllStackTraces();
669	>	dumpTestThreads();
670		throw new AssertionFailedError(msg);
671		}
672
#	Line 566 | Line 703 | public class JSR166TestCase extends Test
703		}
704
705		/**
706	<	* Finds missing try { ... } finally { joinPool(e); }
706	>	* Finds missing PoolCleaners
707		*/
708		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
709		Thread[] survivors = new Thread[7];
#	Line 598 | Line 735 | public class JSR166TestCase extends Test
735		fail(reason);
736		} catch (AssertionFailedError t) {
737		threadRecordFailure(t);
738	<	fail(reason);
738	>	throw t;
739		}
740		}
741
#	Line 725 | Line 862 | public class JSR166TestCase extends Test
862		/**
863		* Delays, via Thread.sleep, for the given millisecond delay, but
864		* if the sleep is shorter than specified, may re-sleep or yield
865	<	* until time elapses.
865	>	* until time elapses.  Ensures that the given time, as measured
866	>	* by System.nanoTime(), has elapsed.
867		*/
868		static void delay(long millis) throws InterruptedException {
869	<	long startTime = System.nanoTime();
870	<	long ns = millis * 1000 * 1000;
871	<	for (;;) {
869	>	long nanos = millis * (1000 * 1000);
870	>	final long wakeupTime = System.nanoTime() + nanos;
871	>	do {
872		if (millis > 0L)
873		Thread.sleep(millis);
874		else // too short to sleep
875		Thread.yield();
876	<	long d = ns - (System.nanoTime() - startTime);
877	<	if (d > 0L)
878	<	millis = d / (1000 * 1000);
741	<	else
742	<	break;
743	<	}
876	>	nanos = wakeupTime - System.nanoTime();
877	>	millis = nanos / (1000 * 1000);
878	>	} while (nanos >= 0L);
879		}
880
881		/**
882		* Allows use of try-with-resources with per-test thread pools.
883		*/
884	<	static class PoolCloser<T extends ExecutorService>
885	<	implements AutoCloseable {
886	<	public final T pool;
752	<	public PoolCloser(T pool) { this.pool = pool; }
884	>	class PoolCleaner implements AutoCloseable {
885	>	private final ExecutorService pool;
886	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
887		public void close() { joinPool(pool); }
888		}
889
890		/**
891	+	* An extension of PoolCleaner that has an action to release the pool.
892	+	*/
893	+	class PoolCleanerWithReleaser extends PoolCleaner {
894	+	private final Runnable releaser;
895	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
896	+	super(pool);
897	+	this.releaser = releaser;
898	+	}
899	+	public void close() {
900	+	try {
901	+	releaser.run();
902	+	} finally {
903	+	super.close();
904	+	}
905	+	}
906	+	}
907	+
908	+	PoolCleaner cleaner(ExecutorService pool) {
909	+	return new PoolCleaner(pool);
910	+	}
911	+
912	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
913	+	return new PoolCleanerWithReleaser(pool, releaser);
914	+	}
915	+
916	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
917	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
918	+	}
919	+
920	+	Runnable releaser(final CountDownLatch latch) {
921	+	return new Runnable() { public void run() {
922	+	do { latch.countDown(); }
923	+	while (latch.getCount() > 0);
924	+	}};
925	+	}
926	+
927	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
928	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
929	+	}
930	+
931	+	Runnable releaser(final AtomicBoolean flag) {
932	+	return new Runnable() { public void run() { flag.set(true); }};
933	+	}
934	+
935	+	/**
936		* Waits out termination of a thread pool or fails doing so.
937		*/
938	<	static void joinPool(ExecutorService pool) {
938	>	void joinPool(ExecutorService pool) {
939		try {
940		pool.shutdown();
941	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
942	<	fail("ExecutorService " + pool +
943	<	" did not terminate in a timely manner");
941	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
942	>	try {
943	>	threadFail("ExecutorService " + pool +
944	>	" did not terminate in a timely manner");
945	>	} finally {
946	>	// last resort, for the benefit of subsequent tests
947	>	pool.shutdownNow();
948	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
949	>	}
950	>	}
951		} catch (SecurityException ok) {
952		// Allowed in case test doesn't have privs
953		} catch (InterruptedException fail) {
954	<	fail("Unexpected InterruptedException");
954	>	threadFail("Unexpected InterruptedException");
955		}
956		}
957
958	<	/** Like Runnable, but with the freedom to throw anything */
958	>	/**
959	>	* Like Runnable, but with the freedom to throw anything.
960	>	* junit folks had the same idea:
961	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
962	>	*/
963		interface Action { public void run() throws Throwable; }
964
965		/**
#	Line 779 | Line 969 | public class JSR166TestCase extends Test
969		*/
970		void testInParallel(Action ... actions) {
971		ExecutorService pool = Executors.newCachedThreadPool();
972	<	try {
972	>	try (PoolCleaner cleaner = cleaner(pool)) {
973		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
974		for (final Action action : actions)
975		futures.add(pool.submit(new CheckedRunnable() {
#	Line 792 | Line 982 | public class JSR166TestCase extends Test
982		} catch (Exception ex) {
983		threadUnexpectedException(ex);
984		}
795	–	} finally {
796	–	joinPool(pool);
985		}
986		}
987
988		/**
989	<	* A debugging tool to print all stack traces, as jstack does.
989	>	* A debugging tool to print stack traces of most threads, as jstack does.
990		* Uninteresting threads are filtered out.
991		*/
992	<	static void printAllStackTraces() {
992	>	static void dumpTestThreads() {
993	>	SecurityManager sm = System.getSecurityManager();
994	>	if (sm != null) {
995	>	try {
996	>	System.setSecurityManager(null);
997	>	} catch (SecurityException giveUp) {
998	>	return;
999	>	}
1000	>	}
1001	>
1002		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1003		System.err.println("------ stacktrace dump start ------");
1004		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
#	Line 814 | Line 1011 | public class JSR166TestCase extends Test
1011		if ("Finalizer".equals(name)
1012		&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1013		continue;
1014	+	if ("checkForWedgedTest".equals(name))
1015	+	continue;
1016		System.err.print(info);
1017		}
1018		System.err.println("------ stacktrace dump end ------");
1019	+
1020	+	if (sm != null) System.setSecurityManager(sm);
1021		}
1022
1023		/**
#	Line 836 | Line 1037 | public class JSR166TestCase extends Test
1037		delay(millis);
1038		assertTrue(thread.isAlive());
1039		} catch (InterruptedException fail) {
1040	<	fail("Unexpected InterruptedException");
1040	>	threadFail("Unexpected InterruptedException");
1041		}
1042		}
1043
#	Line 858 | Line 1059 | public class JSR166TestCase extends Test
1059		for (Thread thread : threads)
1060		assertTrue(thread.isAlive());
1061		} catch (InterruptedException fail) {
1062	<	fail("Unexpected InterruptedException");
1062	>	threadFail("Unexpected InterruptedException");
1063		}
1064		}
1065
#	Line 1136 | Line 1337 | public class JSR166TestCase extends Test
1337		} finally {
1338		if (t.getState() != Thread.State.TERMINATED) {
1339		t.interrupt();
1340	<	fail("Test timed out");
1340	>	threadFail("timed out waiting for thread to terminate");
1341		}
1342		}
1343		}
#	Line 1284 | Line 1485 | public class JSR166TestCase extends Test
1485		}};
1486		}
1487
1488	<	public Runnable awaiter(final CountDownLatch latch) {
1489	<	return new CheckedRunnable() {
1490	<	public void realRun() throws InterruptedException {
1491	<	await(latch);
1492	<	}};
1488	>	class LatchAwaiter extends CheckedRunnable {
1489	>	static final int NEW = 0;
1490	>	static final int RUNNING = 1;
1491	>	static final int DONE = 2;
1492	>	final CountDownLatch latch;
1493	>	int state = NEW;
1494	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1495	>	public void realRun() throws InterruptedException {
1496	>	state = 1;
1497	>	await(latch);
1498	>	state = 2;
1499	>	}
1500		}
1501
1502	<	public void await(CountDownLatch latch) {
1502	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1503	>	return new LatchAwaiter(latch);
1504	>	}
1505	>
1506	>	public void await(CountDownLatch latch, long timeoutMillis) {
1507		try {
1508	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1508	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1509	>	fail("timed out waiting for CountDownLatch for "
1510	>	+ (timeoutMillis/1000) + " sec");
1511		} catch (Throwable fail) {
1512		threadUnexpectedException(fail);
1513		}
1514		}
1515
1516	+	public void await(CountDownLatch latch) {
1517	+	await(latch, LONG_DELAY_MS);
1518	+	}
1519	+
1520		public void await(Semaphore semaphore) {
1521		try {
1522	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1522	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1523	>	fail("timed out waiting for Semaphore for "
1524	>	+ (LONG_DELAY_MS/1000) + " sec");
1525		} catch (Throwable fail) {
1526		threadUnexpectedException(fail);
1527		}
#	Line 1637 | Line 1857 | public class JSR166TestCase extends Test
1857		} catch (NoSuchElementException success) {}
1858		assertFalse(it.hasNext());
1859		}
1860	+
1861	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1862	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1863	+	}
1864	+
1865	+	public Runnable runnableThrowing(final RuntimeException ex) {
1866	+	return new Runnable() { public void run() { throw ex; }};
1867	+	}
1868	+
1869	+	/** A reusable thread pool to be shared by tests. */
1870	+	static final ExecutorService cachedThreadPool =
1871	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1872	+	1000L, MILLISECONDS,
1873	+	new SynchronousQueue<Runnable>());
1874	+
1875		}

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