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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 1.198 by jsr166, Wed Jul 27 17:16:23 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	+	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 -Djava.util.secureRandomSeed=true JSR166TestCase
17	+	*/
18	+
19		import static java.util.concurrent.TimeUnit.MILLISECONDS;
20	+	import static java.util.concurrent.TimeUnit.MINUTES;
21		import static java.util.concurrent.TimeUnit.NANOSECONDS;
22
23		import java.io.ByteArrayInputStream;
#	Line 19 | Line 30 | import java.lang.management.ThreadMXBean
30		import java.lang.reflect.Constructor;
31		import java.lang.reflect.Method;
32		import java.lang.reflect.Modifier;
33	+	import java.nio.file.Files;
34	+	import java.nio.file.Paths;
35		import java.security.CodeSource;
36		import java.security.Permission;
37		import java.security.PermissionCollection;
#	Line 47 | Line 60 | import java.util.concurrent.RecursiveAct
60		import java.util.concurrent.RecursiveTask;
61		import java.util.concurrent.RejectedExecutionHandler;
62		import java.util.concurrent.Semaphore;
63	+	import java.util.concurrent.SynchronousQueue;
64		import java.util.concurrent.ThreadFactory;
65		import java.util.concurrent.ThreadPoolExecutor;
66		import java.util.concurrent.TimeoutException;
67	+	import java.util.concurrent.atomic.AtomicBoolean;
68		import java.util.concurrent.atomic.AtomicReference;
69	+	import java.util.regex.Matcher;
70		import java.util.regex.Pattern;
71
72		import junit.framework.AssertionFailedError;
#	Line 108 | Line 124 | import junit.framework.TestSuite;
124		* methods as there are exceptions the method can throw. Sometimes
125		* there are multiple tests per JSR166 method when the different
126		* "normal" behaviors differ significantly. And sometimes testcases
127	<	* cover multiple methods when they cannot be tested in
112	<	* isolation.
127	>	* cover multiple methods when they cannot be tested in isolation.
128		*
129		* <li>The documentation style for testcases is to provide as javadoc
130		* a simple sentence or two describing the property that the testcase
#	Line 172 | Line 187 | public class JSR166TestCase extends Test
187		private static final int suiteRuns =
188		Integer.getInteger("jsr166.suiteRuns", 1);
189
190	+	/**
191	+	* Returns the value of the system property, or NaN if not defined.
192	+	*/
193	+	private static float systemPropertyValue(String name) {
194	+	String floatString = System.getProperty(name);
195	+	if (floatString == null)
196	+	return Float.NaN;
197	+	try {
198	+	return Float.parseFloat(floatString);
199	+	} catch (NumberFormatException ex) {
200	+	throw new IllegalArgumentException(
201	+	String.format("Bad float value in system property %s=%s",
202	+	name, floatString));
203	+	}
204	+	}
205	+
206	+	/**
207	+	* The scaling factor to apply to standard delays used in tests.
208	+	* May be initialized from any of:
209	+	* - the "jsr166.delay.factor" system property
210	+	* - the "test.timeout.factor" system property (as used by jtreg)
211	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
212	+	* - hard-coded fuzz factor when using a known slowpoke VM
213	+	*/
214	+	private static final float delayFactor = delayFactor();
215	+
216	+	private static float delayFactor() {
217	+	float x;
218	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
219	+	return x;
220	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
221	+	return x;
222	+	String prop = System.getProperty("java.vm.version");
223	+	if (prop != null && prop.matches(".*debug.*"))
224	+	return 4.0f; // How much slower is fastdebug than product?!
225	+	return 1.0f;
226	+	}
227	+
228		public JSR166TestCase() { super(); }
229		public JSR166TestCase(String name) { super(name); }
230
#	Line 187 | Line 240 | public class JSR166TestCase extends Test
240		return (regex == null) ? null : Pattern.compile(regex);
241		}
242
243	+	// Instrumentation to debug very rare, but very annoying hung test runs.
244	+	static volatile TestCase currentTestCase;
245	+	// static volatile int currentRun = 0;
246	+	static {
247	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
248	+	// Avoid spurious reports with enormous runsPerTest.
249	+	// A single test case run should never take more than 1 second.
250	+	// But let's cap it at the high end too ...
251	+	final int timeoutMinutes =
252	+	Math.min(15, Math.max(runsPerTest / 60, 1));
253	+	for (TestCase lastTestCase = currentTestCase;;) {
254	+	try { MINUTES.sleep(timeoutMinutes); }
255	+	catch (InterruptedException unexpected) { break; }
256	+	if (lastTestCase == currentTestCase) {
257	+	System.err.printf(
258	+	"Looks like we're stuck running test: %s%n",
259	+	lastTestCase);
260	+	//                     System.err.printf(
261	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
262	+	//                         lastTestCase, currentRun, runsPerTest);
263	+	//                     System.err.println("availableProcessors=" +
264	+	//                         Runtime.getRuntime().availableProcessors());
265	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
266	+	dumpTestThreads();
267	+	// one stack dump is probably enough; more would be spam
268	+	break;
269	+	}
270	+	lastTestCase = currentTestCase;
271	+	}}};
272	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
273	+	thread.setDaemon(true);
274	+	thread.start();
275	+	}
276	+
277	+	//     public static String cpuModel() {
278	+	//         try {
279	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
280	+	//                 .matcher(new String(
281	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
282	+	//             matcher.find();
283	+	//             return matcher.group(1);
284	+	//         } catch (Exception ex) { return null; }
285	+	//     }
286	+
287		public void runBare() throws Throwable {
288	+	currentTestCase = this;
289		if (methodFilter == null
290		|| methodFilter.matcher(toString()).find())
291		super.runBare();
#	Line 195 | Line 293 | public class JSR166TestCase extends Test
293
294		protected void runTest() throws Throwable {
295		for (int i = 0; i < runsPerTest; i++) {
296	+	// currentRun = i;
297		if (profileTests)
298		runTestProfiled();
299		else
#	Line 223 | Line 322 | public class JSR166TestCase extends Test
322		main(suite(), args);
323		}
324
325	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
326	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
327	+	long runTime;
328	+	public void startTest(Test test) {}
329	+	protected void printHeader(long runTime) {
330	+	this.runTime = runTime; // defer printing for later
331	+	}
332	+	protected void printFooter(TestResult result) {
333	+	if (result.wasSuccessful()) {
334	+	getWriter().println("OK (" + result.runCount() + " tests)"
335	+	+ "  Time: " + elapsedTimeAsString(runTime));
336	+	} else {
337	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
338	+	super.printFooter(result);
339	+	}
340	+	}
341	+	}
342	+
343	+	/**
344	+	* Returns a TestRunner that doesn't bother with unnecessary
345	+	* fluff, like printing a "." for each test case.
346	+	*/
347	+	static junit.textui.TestRunner newPithyTestRunner() {
348	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
349	+	runner.setPrinter(new PithyResultPrinter(System.out));
350	+	return runner;
351	+	}
352	+
353		/**
354		* Runs all unit tests in the given test suite.
355		* Actual behavior influenced by jsr166.* system properties.
#	Line 234 | Line 361 | public class JSR166TestCase extends Test
361		System.setSecurityManager(new SecurityManager());
362		}
363		for (int i = 0; i < suiteRuns; i++) {
364	<	TestResult result = junit.textui.TestRunner.run(suite);
364	>	TestResult result = newPithyTestRunner().doRun(suite);
365		if (!result.wasSuccessful())
366		System.exit(1);
367		System.gc();
#	Line 387 | Line 514 | public class JSR166TestCase extends Test
514		"StampedLockTest",
515		"SubmissionPublisherTest",
516		"ThreadLocalRandom8Test",
517	+	"TimeUnit8Test",
518		};
519		addNamedTestClasses(suite, java8TestClassNames);
520		}
#	Line 394 | Line 522 | public class JSR166TestCase extends Test
522		// Java9+ test classes
523		if (atLeastJava9()) {
524		String[] java9TestClassNames = {
525	<	// Currently empty, but expecting varhandle tests
525	>	"AtomicBoolean9Test",
526	>	"AtomicInteger9Test",
527	>	"AtomicIntegerArray9Test",
528	>	"AtomicLong9Test",
529	>	"AtomicLongArray9Test",
530	>	"AtomicReference9Test",
531	>	"AtomicReferenceArray9Test",
532	>	"ExecutorCompletionService9Test",
533		};
534		addNamedTestClasses(suite, java9TestClassNames);
535		}
#	Line 461 | Line 596 | public class JSR166TestCase extends Test
596		} else {
597		return new TestSuite();
598		}
464	–
599		}
600
601		// Delays for timing-dependent tests, in milliseconds.
#	Line 472 | Line 606 | public class JSR166TestCase extends Test
606		public static long LONG_DELAY_MS;
607
608		/**
609	<	* Returns the shortest timed delay. This could
610	<	* be reimplemented to use for example a Property.
609	>	* Returns the shortest timed delay. This can be scaled up for
610	>	* slow machines using the jsr166.delay.factor system property,
611	>	* or via jtreg's -timeoutFactor: flag.
612	>	* http://openjdk.java.net/jtreg/command-help.html
613		*/
614		protected long getShortDelay() {
615	<	return 50;
615	>	return (long) (50 * delayFactor);
616		}
617
618		/**
#	Line 519 | Line 655 | public class JSR166TestCase extends Test
655		* the same test have no effect.
656		*/
657		public void threadRecordFailure(Throwable t) {
658	+	System.err.println(t);
659	+	dumpTestThreads();
660		threadFailure.compareAndSet(null, t);
661		}
662
#	Line 529 | Line 667 | public class JSR166TestCase extends Test
667		void tearDownFail(String format, Object... args) {
668		String msg = toString() + ": " + String.format(format, args);
669		System.err.println(msg);
670	<	printAllStackTraces();
670	>	dumpTestThreads();
671		throw new AssertionFailedError(msg);
672		}
673
#	Line 566 | Line 704 | public class JSR166TestCase extends Test
704		}
705
706		/**
707	<	* Finds missing try { ... } finally { joinPool(e); }
707	>	* Finds missing PoolCleaners
708		*/
709		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
710		Thread[] survivors = new Thread[7];
#	Line 598 | Line 736 | public class JSR166TestCase extends Test
736		fail(reason);
737		} catch (AssertionFailedError t) {
738		threadRecordFailure(t);
739	<	fail(reason);
739	>	throw t;
740		}
741		}
742
#	Line 725 | Line 863 | public class JSR166TestCase extends Test
863		/**
864		* Delays, via Thread.sleep, for the given millisecond delay, but
865		* if the sleep is shorter than specified, may re-sleep or yield
866	<	* until time elapses.
866	>	* until time elapses.  Ensures that the given time, as measured
867	>	* by System.nanoTime(), has elapsed.
868		*/
869		static void delay(long millis) throws InterruptedException {
870	<	long startTime = System.nanoTime();
871	<	long ns = millis * 1000 * 1000;
872	<	for (;;) {
870	>	long nanos = millis * (1000 * 1000);
871	>	final long wakeupTime = System.nanoTime() + nanos;
872	>	do {
873		if (millis > 0L)
874		Thread.sleep(millis);
875		else // too short to sleep
876		Thread.yield();
877	<	long d = ns - (System.nanoTime() - startTime);
878	<	if (d > 0L)
879	<	millis = d / (1000 * 1000);
741	<	else
742	<	break;
743	<	}
877	>	nanos = wakeupTime - System.nanoTime();
878	>	millis = nanos / (1000 * 1000);
879	>	} while (nanos >= 0L);
880		}
881
882		/**
883		* Allows use of try-with-resources with per-test thread pools.
884		*/
885	<	static class PoolCloser<T extends ExecutorService>
886	<	implements AutoCloseable {
887	<	public final T pool;
752	<	public PoolCloser(T pool) { this.pool = pool; }
885	>	class PoolCleaner implements AutoCloseable {
886	>	private final ExecutorService pool;
887	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
888		public void close() { joinPool(pool); }
889		}
890
891		/**
892	+	* An extension of PoolCleaner that has an action to release the pool.
893	+	*/
894	+	class PoolCleanerWithReleaser extends PoolCleaner {
895	+	private final Runnable releaser;
896	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
897	+	super(pool);
898	+	this.releaser = releaser;
899	+	}
900	+	public void close() {
901	+	try {
902	+	releaser.run();
903	+	} finally {
904	+	super.close();
905	+	}
906	+	}
907	+	}
908	+
909	+	PoolCleaner cleaner(ExecutorService pool) {
910	+	return new PoolCleaner(pool);
911	+	}
912	+
913	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
914	+	return new PoolCleanerWithReleaser(pool, releaser);
915	+	}
916	+
917	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
918	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
919	+	}
920	+
921	+	Runnable releaser(final CountDownLatch latch) {
922	+	return new Runnable() { public void run() {
923	+	do { latch.countDown(); }
924	+	while (latch.getCount() > 0);
925	+	}};
926	+	}
927	+
928	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
929	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
930	+	}
931	+
932	+	Runnable releaser(final AtomicBoolean flag) {
933	+	return new Runnable() { public void run() { flag.set(true); }};
934	+	}
935	+
936	+	/**
937		* Waits out termination of a thread pool or fails doing so.
938		*/
939	<	static void joinPool(ExecutorService pool) {
939	>	void joinPool(ExecutorService pool) {
940		try {
941		pool.shutdown();
942	<	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
943	<	fail("ExecutorService " + pool +
944	<	" did not terminate in a timely manner");
942	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
943	>	try {
944	>	threadFail("ExecutorService " + pool +
945	>	" did not terminate in a timely manner");
946	>	} finally {
947	>	// last resort, for the benefit of subsequent tests
948	>	pool.shutdownNow();
949	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
950	>	}
951	>	}
952		} catch (SecurityException ok) {
953		// Allowed in case test doesn't have privs
954		} catch (InterruptedException fail) {
955	<	fail("Unexpected InterruptedException");
955	>	threadFail("Unexpected InterruptedException");
956		}
957		}
958
959	<	/** Like Runnable, but with the freedom to throw anything */
959	>	/**
960	>	* Like Runnable, but with the freedom to throw anything.
961	>	* junit folks had the same idea:
962	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
963	>	*/
964		interface Action { public void run() throws Throwable; }
965
966		/**
#	Line 779 | Line 970 | public class JSR166TestCase extends Test
970		*/
971		void testInParallel(Action ... actions) {
972		ExecutorService pool = Executors.newCachedThreadPool();
973	<	try {
973	>	try (PoolCleaner cleaner = cleaner(pool)) {
974		ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
975		for (final Action action : actions)
976		futures.add(pool.submit(new CheckedRunnable() {
#	Line 792 | Line 983 | public class JSR166TestCase extends Test
983		} catch (Exception ex) {
984		threadUnexpectedException(ex);
985		}
795	–	} finally {
796	–	joinPool(pool);
986		}
987		}
988
989		/**
990	<	* A debugging tool to print all stack traces, as jstack does.
990	>	* A debugging tool to print stack traces of most threads, as jstack does.
991		* Uninteresting threads are filtered out.
992		*/
993	<	static void printAllStackTraces() {
993	>	static void dumpTestThreads() {
994	>	SecurityManager sm = System.getSecurityManager();
995	>	if (sm != null) {
996	>	try {
997	>	System.setSecurityManager(null);
998	>	} catch (SecurityException giveUp) {
999	>	return;
1000	>	}
1001	>	}
1002	>
1003		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1004		System.err.println("------ stacktrace dump start ------");
1005		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
#	Line 814 | Line 1012 | public class JSR166TestCase extends Test
1012		if ("Finalizer".equals(name)
1013		&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1014		continue;
1015	+	if ("checkForWedgedTest".equals(name))
1016	+	continue;
1017		System.err.print(info);
1018		}
1019		System.err.println("------ stacktrace dump end ------");
1020	+
1021	+	if (sm != null) System.setSecurityManager(sm);
1022		}
1023
1024		/**
#	Line 836 | Line 1038 | public class JSR166TestCase extends Test
1038		delay(millis);
1039		assertTrue(thread.isAlive());
1040		} catch (InterruptedException fail) {
1041	<	fail("Unexpected InterruptedException");
1041	>	threadFail("Unexpected InterruptedException");
1042		}
1043		}
1044
#	Line 858 | Line 1060 | public class JSR166TestCase extends Test
1060		for (Thread thread : threads)
1061		assertTrue(thread.isAlive());
1062		} catch (InterruptedException fail) {
1063	<	fail("Unexpected InterruptedException");
1063	>	threadFail("Unexpected InterruptedException");
1064		}
1065		}
1066
#	Line 1136 | Line 1338 | public class JSR166TestCase extends Test
1338		} finally {
1339		if (t.getState() != Thread.State.TERMINATED) {
1340		t.interrupt();
1341	<	fail("Test timed out");
1341	>	threadFail("timed out waiting for thread to terminate");
1342		}
1343		}
1344		}
#	Line 1284 | Line 1486 | public class JSR166TestCase extends Test
1486		}};
1487		}
1488
1489	<	public Runnable awaiter(final CountDownLatch latch) {
1490	<	return new CheckedRunnable() {
1491	<	public void realRun() throws InterruptedException {
1492	<	await(latch);
1493	<	}};
1489	>	class LatchAwaiter extends CheckedRunnable {
1490	>	static final int NEW = 0;
1491	>	static final int RUNNING = 1;
1492	>	static final int DONE = 2;
1493	>	final CountDownLatch latch;
1494	>	int state = NEW;
1495	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1496	>	public void realRun() throws InterruptedException {
1497	>	state = 1;
1498	>	await(latch);
1499	>	state = 2;
1500	>	}
1501		}
1502
1503	<	public void await(CountDownLatch latch) {
1503	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1504	>	return new LatchAwaiter(latch);
1505	>	}
1506	>
1507	>	public void await(CountDownLatch latch, long timeoutMillis) {
1508		try {
1509	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1509	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1510	>	fail("timed out waiting for CountDownLatch for "
1511	>	+ (timeoutMillis/1000) + " sec");
1512		} catch (Throwable fail) {
1513		threadUnexpectedException(fail);
1514		}
1515		}
1516
1517	+	public void await(CountDownLatch latch) {
1518	+	await(latch, LONG_DELAY_MS);
1519	+	}
1520	+
1521		public void await(Semaphore semaphore) {
1522		try {
1523	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1523	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1524	>	fail("timed out waiting for Semaphore for "
1525	>	+ (LONG_DELAY_MS/1000) + " sec");
1526		} catch (Throwable fail) {
1527		threadUnexpectedException(fail);
1528		}
#	Line 1637 | Line 1858 | public class JSR166TestCase extends Test
1858		} catch (NoSuchElementException success) {}
1859		assertFalse(it.hasNext());
1860		}
1861	+
1862	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1863	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1864	+	}
1865	+
1866	+	public Runnable runnableThrowing(final RuntimeException ex) {
1867	+	return new Runnable() { public void run() { throw ex; }};
1868	+	}
1869	+
1870	+	/** A reusable thread pool to be shared by tests. */
1871	+	static final ExecutorService cachedThreadPool =
1872	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1873	+	1000L, MILLISECONDS,
1874	+	new SynchronousQueue<Runnable>());
1875	+
1876		}

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