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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.222 by jsr166, Fri May 12 18:12:51 2017 UTC vs.
Revision 1.238 by jsr166, Mon Dec 11 00:27:08 2017 UTC

#	Line 76 | Line 76 | import java.util.concurrent.Callable;
76		import java.util.concurrent.CountDownLatch;
77		import java.util.concurrent.CyclicBarrier;
78		import java.util.concurrent.ExecutionException;
79	+	import java.util.concurrent.Executor;
80		import java.util.concurrent.Executors;
81		import java.util.concurrent.ExecutorService;
82		import java.util.concurrent.ForkJoinPool;
83		import java.util.concurrent.Future;
84	+	import java.util.concurrent.FutureTask;
85		import java.util.concurrent.RecursiveAction;
86		import java.util.concurrent.RecursiveTask;
87	+	import java.util.concurrent.RejectedExecutionException;
88		import java.util.concurrent.RejectedExecutionHandler;
89		import java.util.concurrent.Semaphore;
90	+	import java.util.concurrent.ScheduledExecutorService;
91	+	import java.util.concurrent.ScheduledFuture;
92		import java.util.concurrent.SynchronousQueue;
93		import java.util.concurrent.ThreadFactory;
94		import java.util.concurrent.ThreadLocalRandom;
95		import java.util.concurrent.ThreadPoolExecutor;
96	+	import java.util.concurrent.TimeUnit;
97		import java.util.concurrent.TimeoutException;
98		import java.util.concurrent.atomic.AtomicBoolean;
99		import java.util.concurrent.atomic.AtomicReference;
#	Line 439 | Line 445 | public class JSR166TestCase extends Test
445		}
446		}
447
448	<	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
449	<	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
450	<	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
451	<	public static boolean atLeastJava9() {
452	<	return JAVA_CLASS_VERSION >= 53.0
447	<	// As of 2015-09, java9 still uses 52.0 class file version
448	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
449	<	}
450	<	public static boolean atLeastJava10() {
451	<	return JAVA_CLASS_VERSION >= 54.0
452	<	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
453	<	}
448	>	public static boolean atLeastJava6()  { return JAVA_CLASS_VERSION >= 50.0; }
449	>	public static boolean atLeastJava7()  { return JAVA_CLASS_VERSION >= 51.0; }
450	>	public static boolean atLeastJava8()  { return JAVA_CLASS_VERSION >= 52.0; }
451	>	public static boolean atLeastJava9()  { return JAVA_CLASS_VERSION >= 53.0; }
452	>	public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; }
453
454		/**
455		* Collects all JSR166 unit tests as one suite.
#	Line 538 | Line 537 | public class JSR166TestCase extends Test
537		"DoubleAdderTest",
538		"ForkJoinPool8Test",
539		"ForkJoinTask8Test",
540	+	"HashMapTest",
541		"LinkedBlockingDeque8Test",
542		"LinkedBlockingQueue8Test",
543		"LongAccumulatorTest",
#	Line 638 | Line 638 | public class JSR166TestCase extends Test
638		public static long MEDIUM_DELAY_MS;
639		public static long LONG_DELAY_MS;
640
641	+	private static final long RANDOM_TIMEOUT;
642	+	private static final long RANDOM_EXPIRED_TIMEOUT;
643	+	private static final TimeUnit RANDOM_TIMEUNIT;
644	+	static {
645	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
646	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
647	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
648	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
649	+	TimeUnit[] timeUnits = TimeUnit.values();
650	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
651	+	}
652	+
653	+	/**
654	+	* Returns a timeout for use when any value at all will do.
655	+	*/
656	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
657	+
658	+	/**
659	+	* Returns a timeout that means "no waiting", i.e. not positive.
660	+	*/
661	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
662	+
663	+	/**
664	+	* Returns a random non-null TimeUnit.
665	+	*/
666	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
667	+
668		/**
669		* Returns the shortest timed delay. This can be scaled up for
670		* slow machines using the jsr166.delay.factor system property,
#	Line 658 | Line 685 | public class JSR166TestCase extends Test
685		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
686		}
687
688	+	private static final long TIMEOUT_DELAY_MS
689	+	= (long) (12.0 * Math.cbrt(delayFactor));
690	+
691		/**
692	<	* Returns a timeout in milliseconds to be used in tests that
693	<	* verify that operations block or time out.
692	>	* Returns a timeout in milliseconds to be used in tests that verify
693	>	* that operations block or time out.  We want this to be longer
694	>	* than the OS scheduling quantum, but not too long, so don't scale
695	>	* linearly with delayFactor; we use "crazy" cube root instead.
696		*/
697	<	long timeoutMillis() {
698	<	return SHORT_DELAY_MS / 4;
697	>	static long timeoutMillis() {
698	>	return TIMEOUT_DELAY_MS;
699		}
700
701		/**
#	Line 1058 | Line 1090 | public class JSR166TestCase extends Test
1090		}
1091
1092		/**
1093	<	* Checks that thread does not terminate within the default
1062	<	* millisecond delay of {@code timeoutMillis()}.
1063	<	*/
1064	<	void assertThreadStaysAlive(Thread thread) {
1065	<	assertThreadStaysAlive(thread, timeoutMillis());
1066	<	}
1067	<
1068	<	/**
1069	<	* Checks that thread does not terminate within the given millisecond delay.
1093	>	* Checks that thread eventually enters the expected blocked thread state.
1094		*/
1095	<	void assertThreadStaysAlive(Thread thread, long millis) {
1096	<	try {
1097	<	// No need to optimize the failing case via Thread.join.
1098	<	delay(millis);
1099	<	assertTrue(thread.isAlive());
1100	<	} catch (InterruptedException fail) {
1101	<	threadFail("Unexpected InterruptedException");
1102	<	}
1103	<	}
1104	<
1105	<	/**
1106	<	* Checks that the threads do not terminate within the default
1107	<	* millisecond delay of {@code timeoutMillis()}.
1084	<	*/
1085	<	void assertThreadsStayAlive(Thread... threads) {
1086	<	assertThreadsStayAlive(timeoutMillis(), threads);
1087	<	}
1088	<
1089	<	/**
1090	<	* Checks that the threads do not terminate within the given millisecond delay.
1091	<	*/
1092	<	void assertThreadsStayAlive(long millis, Thread... threads) {
1093	<	try {
1094	<	// No need to optimize the failing case via Thread.join.
1095	<	delay(millis);
1096	<	for (Thread thread : threads)
1097	<	assertTrue(thread.isAlive());
1098	<	} catch (InterruptedException fail) {
1099	<	threadFail("Unexpected InterruptedException");
1095	>	void assertThreadBlocks(Thread thread, Thread.State expected) {
1096	>	// always sleep at least 1 ms, with high probability avoiding
1097	>	// transitory states
1098	>	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1099	>	try { delay(1); }
1100	>	catch (InterruptedException fail) {
1101	>	fail("Unexpected InterruptedException");
1102	>	}
1103	>	Thread.State s = thread.getState();
1104	>	if (s == expected)
1105	>	return;
1106	>	else if (s == Thread.State.TERMINATED)
1107	>	fail("Unexpected thread termination");
1108		}
1109	+	fail("timed out waiting for thread to enter thread state " + expected);
1110		}
1111
1112		/**
#	Line 1612 | Line 1621 | public class JSR166TestCase extends Test
1621		}
1622		}
1623
1624	+	public void await(CyclicBarrier barrier) {
1625	+	try {
1626	+	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1627	+	} catch (Throwable fail) {
1628	+	threadUnexpectedException(fail);
1629	+	}
1630	+	}
1631	+
1632		//     /**
1633		//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1634		//      */
#	Line 1635 | Line 1652 | public class JSR166TestCase extends Test
1652		public String call() { throw new NullPointerException(); }
1653		}
1654
1638	–	public static class CallableOne implements Callable<Integer> {
1639	–	public Integer call() { return one; }
1640	–	}
1641	–
1642	–	public class ShortRunnable extends CheckedRunnable {
1643	–	protected void realRun() throws Throwable {
1644	–	delay(SHORT_DELAY_MS);
1645	–	}
1646	–	}
1647	–
1648	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1649	–	protected void realRun() throws InterruptedException {
1650	–	delay(SHORT_DELAY_MS);
1651	–	}
1652	–	}
1653	–
1654	–	public class SmallRunnable extends CheckedRunnable {
1655	–	protected void realRun() throws Throwable {
1656	–	delay(SMALL_DELAY_MS);
1657	–	}
1658	–	}
1659	–
1655		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1656		protected void realRun() {
1657		try {
#	Line 1665 | Line 1660 | public class JSR166TestCase extends Test
1660		}
1661		}
1662
1668	–	public class SmallCallable extends CheckedCallable {
1669	–	protected Object realCall() throws InterruptedException {
1670	–	delay(SMALL_DELAY_MS);
1671	–	return Boolean.TRUE;
1672	–	}
1673	–	}
1674	–
1675	–	public class MediumRunnable extends CheckedRunnable {
1676	–	protected void realRun() throws Throwable {
1677	–	delay(MEDIUM_DELAY_MS);
1678	–	}
1679	–	}
1680	–
1681	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1682	–	protected void realRun() throws InterruptedException {
1683	–	delay(MEDIUM_DELAY_MS);
1684	–	}
1685	–	}
1686	–
1663		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1664		return new CheckedRunnable() {
1665		protected void realRun() {
#	Line 1693 | Line 1669 | public class JSR166TestCase extends Test
1669		}};
1670		}
1671
1696	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1697	–	protected void realRun() {
1698	–	try {
1699	–	delay(MEDIUM_DELAY_MS);
1700	–	} catch (InterruptedException ok) {}
1701	–	}
1702	–	}
1703	–
1704	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1705	–	protected void realRun() {
1706	–	try {
1707	–	delay(LONG_DELAY_MS);
1708	–	} catch (InterruptedException ok) {}
1709	–	}
1710	–	}
1711	–
1672		/**
1673		* For use as ThreadFactory in constructors
1674		*/
#	Line 1722 | Line 1682 | public class JSR166TestCase extends Test
1682		boolean isDone();
1683		}
1684
1725	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1726	–	return new TrackedRunnable() {
1727	–	private volatile boolean done = false;
1728	–	public boolean isDone() { return done; }
1729	–	public void run() {
1730	–	try {
1731	–	delay(timeoutMillis);
1732	–	done = true;
1733	–	} catch (InterruptedException ok) {}
1734	–	}
1735	–	};
1736	–	}
1737	–
1738	–	public static class TrackedShortRunnable implements Runnable {
1739	–	public volatile boolean done = false;
1740	–	public void run() {
1741	–	try {
1742	–	delay(SHORT_DELAY_MS);
1743	–	done = true;
1744	–	} catch (InterruptedException ok) {}
1745	–	}
1746	–	}
1747	–
1748	–	public static class TrackedSmallRunnable implements Runnable {
1749	–	public volatile boolean done = false;
1750	–	public void run() {
1751	–	try {
1752	–	delay(SMALL_DELAY_MS);
1753	–	done = true;
1754	–	} catch (InterruptedException ok) {}
1755	–	}
1756	–	}
1757	–
1758	–	public static class TrackedMediumRunnable implements Runnable {
1759	–	public volatile boolean done = false;
1760	–	public void run() {
1761	–	try {
1762	–	delay(MEDIUM_DELAY_MS);
1763	–	done = true;
1764	–	} catch (InterruptedException ok) {}
1765	–	}
1766	–	}
1767	–
1768	–	public static class TrackedLongRunnable implements Runnable {
1769	–	public volatile boolean done = false;
1770	–	public void run() {
1771	–	try {
1772	–	delay(LONG_DELAY_MS);
1773	–	done = true;
1774	–	} catch (InterruptedException ok) {}
1775	–	}
1776	–	}
1777	–
1685		public static class TrackedNoOpRunnable implements Runnable {
1686		public volatile boolean done = false;
1687		public void run() {
#	Line 1782 | Line 1689 | public class JSR166TestCase extends Test
1689		}
1690		}
1691
1785	–	public static class TrackedCallable implements Callable {
1786	–	public volatile boolean done = false;
1787	–	public Object call() {
1788	–	try {
1789	–	delay(SMALL_DELAY_MS);
1790	–	done = true;
1791	–	} catch (InterruptedException ok) {}
1792	–	return Boolean.TRUE;
1793	–	}
1794	–	}
1795	–
1692		/**
1693		* Analog of CheckedRunnable for RecursiveAction
1694		*/
#	Line 1859 | Line 1755 | public class JSR166TestCase extends Test
1755		assertEquals(0, q.size());
1756		assertNull(q.peek());
1757		assertNull(q.poll());
1758	<	assertNull(q.poll(0, MILLISECONDS));
1758	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1759		assertEquals(q.toString(), "[]");
1760		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1761		assertFalse(q.iterator().hasNext());
#	Line 2010 | Line 1906 | public class JSR166TestCase extends Test
1906		static <T> void shuffle(T[] array) {
1907		Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1908		}
1909	+
1910	+	/**
1911	+	* Returns the same String as would be returned by {@link
1912	+	* Object#toString}, whether or not the given object's class
1913	+	* overrides toString().
1914	+	*
1915	+	* @see System#identityHashCode
1916	+	*/
1917	+	static String identityString(Object x) {
1918	+	return x.getClass().getName()
1919	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1920	+	}
1921	+
1922	+	// --- Shared assertions for Executor tests ---
1923	+
1924	+	/**
1925	+	* Returns maximum number of tasks that can be submitted to given
1926	+	* pool (with bounded queue) before saturation (when submission
1927	+	* throws RejectedExecutionException).
1928	+	*/
1929	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1930	+	BlockingQueue<Runnable> q = pool.getQueue();
1931	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1932	+	}
1933	+
1934	+	@SuppressWarnings("FutureReturnValueIgnored")
1935	+	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1936	+	try {
1937	+	e.execute((Runnable) null);
1938	+	shouldThrow();
1939	+	} catch (NullPointerException success) {}
1940	+
1941	+	if (! (e instanceof ExecutorService)) return;
1942	+	ExecutorService es = (ExecutorService) e;
1943	+	try {
1944	+	es.submit((Runnable) null);
1945	+	shouldThrow();
1946	+	} catch (NullPointerException success) {}
1947	+	try {
1948	+	es.submit((Runnable) null, Boolean.TRUE);
1949	+	shouldThrow();
1950	+	} catch (NullPointerException success) {}
1951	+	try {
1952	+	es.submit((Callable) null);
1953	+	shouldThrow();
1954	+	} catch (NullPointerException success) {}
1955	+
1956	+	if (! (e instanceof ScheduledExecutorService)) return;
1957	+	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1958	+	try {
1959	+	ses.schedule((Runnable) null,
1960	+	randomTimeout(), randomTimeUnit());
1961	+	shouldThrow();
1962	+	} catch (NullPointerException success) {}
1963	+	try {
1964	+	ses.schedule((Callable) null,
1965	+	randomTimeout(), randomTimeUnit());
1966	+	shouldThrow();
1967	+	} catch (NullPointerException success) {}
1968	+	try {
1969	+	ses.scheduleAtFixedRate((Runnable) null,
1970	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1971	+	shouldThrow();
1972	+	} catch (NullPointerException success) {}
1973	+	try {
1974	+	ses.scheduleWithFixedDelay((Runnable) null,
1975	+	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1976	+	shouldThrow();
1977	+	} catch (NullPointerException success) {}
1978	+	}
1979	+
1980	+	void setRejectedExecutionHandler(
1981	+	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1982	+	p.setRejectedExecutionHandler(handler);
1983	+	assertSame(handler, p.getRejectedExecutionHandler());
1984	+	}
1985	+
1986	+	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1987	+	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1988	+	final long savedTaskCount = p.getTaskCount();
1989	+	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1990	+	final int savedQueueSize = p.getQueue().size();
1991	+	final boolean stock = (p.getClass().getClassLoader() == null);
1992	+
1993	+	Runnable r = () -> {};
1994	+	Callable<Boolean> c = () -> Boolean.TRUE;
1995	+
1996	+	class Recorder implements RejectedExecutionHandler {
1997	+	public volatile Runnable r = null;
1998	+	public volatile ThreadPoolExecutor p = null;
1999	+	public void reset() { r = null; p = null; }
2000	+	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2001	+	assertNull(this.r);
2002	+	assertNull(this.p);
2003	+	this.r = r;
2004	+	this.p = p;
2005	+	}
2006	+	}
2007	+
2008	+	// check custom handler is invoked exactly once per task
2009	+	Recorder recorder = new Recorder();
2010	+	setRejectedExecutionHandler(p, recorder);
2011	+	for (int i = 2; i--> 0; ) {
2012	+	recorder.reset();
2013	+	p.execute(r);
2014	+	if (stock && p.getClass() == ThreadPoolExecutor.class)
2015	+	assertSame(r, recorder.r);
2016	+	assertSame(p, recorder.p);
2017	+
2018	+	recorder.reset();
2019	+	assertFalse(p.submit(r).isDone());
2020	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2021	+	assertSame(p, recorder.p);
2022	+
2023	+	recorder.reset();
2024	+	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2025	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2026	+	assertSame(p, recorder.p);
2027	+
2028	+	recorder.reset();
2029	+	assertFalse(p.submit(c).isDone());
2030	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2031	+	assertSame(p, recorder.p);
2032	+
2033	+	if (p instanceof ScheduledExecutorService) {
2034	+	ScheduledExecutorService s = (ScheduledExecutorService) p;
2035	+	ScheduledFuture<?> future;
2036	+
2037	+	recorder.reset();
2038	+	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2039	+	assertFalse(future.isDone());
2040	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2041	+	assertSame(p, recorder.p);
2042	+
2043	+	recorder.reset();
2044	+	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2045	+	assertFalse(future.isDone());
2046	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2047	+	assertSame(p, recorder.p);
2048	+
2049	+	recorder.reset();
2050	+	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2051	+	assertFalse(future.isDone());
2052	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2053	+	assertSame(p, recorder.p);
2054	+
2055	+	recorder.reset();
2056	+	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2057	+	assertFalse(future.isDone());
2058	+	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2059	+	assertSame(p, recorder.p);
2060	+	}
2061	+	}
2062	+
2063	+	// Checking our custom handler above should be sufficient, but
2064	+	// we add some integration tests of standard handlers.
2065	+	final AtomicReference<Thread> thread = new AtomicReference<>();
2066	+	final Runnable setThread = () -> thread.set(Thread.currentThread());
2067	+
2068	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2069	+	try {
2070	+	p.execute(setThread);
2071	+	shouldThrow();
2072	+	} catch (RejectedExecutionException success) {}
2073	+	assertNull(thread.get());
2074	+
2075	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2076	+	p.execute(setThread);
2077	+	assertNull(thread.get());
2078	+
2079	+	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2080	+	p.execute(setThread);
2081	+	if (p.isShutdown())
2082	+	assertNull(thread.get());
2083	+	else
2084	+	assertSame(Thread.currentThread(), thread.get());
2085	+
2086	+	setRejectedExecutionHandler(p, savedHandler);
2087	+
2088	+	// check that pool was not perturbed by handlers
2089	+	assertEquals(savedTaskCount, p.getTaskCount());
2090	+	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2091	+	assertEquals(savedQueueSize, p.getQueue().size());
2092	+	}
2093		}

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