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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.233 by jsr166, Sat Jul 15 23:15:21 2017 UTC vs.
Revision 1.237 by jsr166, Wed Aug 23 05:33:00 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;
#	Line 539 | Line 544 | public class JSR166TestCase extends Test
544		"DoubleAdderTest",
545		"ForkJoinPool8Test",
546		"ForkJoinTask8Test",
547	+	"HashMapTest",
548		"LinkedBlockingDeque8Test",
549		"LinkedBlockingQueue8Test",
550		"LongAccumulatorTest",
#	Line 1111 | Line 1117 | public class JSR166TestCase extends Test
1117		}
1118
1119		/**
1114	–	* Checks that thread does not terminate within the default
1115	–	* millisecond delay of {@code timeoutMillis()}.
1116	–	* TODO: REMOVEME
1117	–	*/
1118	–	void assertThreadStaysAlive(Thread thread) {
1119	–	assertThreadStaysAlive(thread, timeoutMillis());
1120	–	}
1121	–
1122	–	/**
1123	–	* Checks that thread does not terminate within the given millisecond delay.
1124	–	* TODO: REMOVEME
1125	–	*/
1126	–	void assertThreadStaysAlive(Thread thread, long millis) {
1127	–	try {
1128	–	// No need to optimize the failing case via Thread.join.
1129	–	delay(millis);
1130	–	assertTrue(thread.isAlive());
1131	–	} catch (InterruptedException fail) {
1132	–	threadFail("Unexpected InterruptedException");
1133	–	}
1134	–	}
1135	–
1136	–	/**
1137	–	* Checks that the threads do not terminate within the default
1138	–	* millisecond delay of {@code timeoutMillis()}.
1139	–	* TODO: REMOVEME
1140	–	*/
1141	–	void assertThreadsStayAlive(Thread... threads) {
1142	–	assertThreadsStayAlive(timeoutMillis(), threads);
1143	–	}
1144	–
1145	–	/**
1146	–	* Checks that the threads do not terminate within the given millisecond delay.
1147	–	* TODO: REMOVEME
1148	–	*/
1149	–	void assertThreadsStayAlive(long millis, Thread... threads) {
1150	–	try {
1151	–	// No need to optimize the failing case via Thread.join.
1152	–	delay(millis);
1153	–	for (Thread thread : threads)
1154	–	assertTrue(thread.isAlive());
1155	–	} catch (InterruptedException fail) {
1156	–	threadFail("Unexpected InterruptedException");
1157	–	}
1158	–	}
1159	–
1160	–	/**
1120		* Checks that future.get times out, with the default timeout of
1121		* {@code timeoutMillis()}.
1122		*/
#	Line 1951 | Line 1910 | public class JSR166TestCase extends Test
1910		1000L, MILLISECONDS,
1911		new SynchronousQueue<Runnable>());
1912
1913	+	static <T> void shuffle(T[] array) {
1914	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1915	+	}
1916	+
1917	+	/**
1918	+	* Returns the same String as would be returned by {@link
1919	+	* Object#toString}, whether or not the given object's class
1920	+	* overrides toString().
1921	+	*
1922	+	* @see System#identityHashCode
1923	+	*/
1924	+	static String identityString(Object x) {
1925	+	return x.getClass().getName()
1926	+	+ "@" + Integer.toHexString(System.identityHashCode(x));
1927	+	}
1928	+
1929	+	// --- Shared assertions for Executor tests ---
1930	+
1931		/**
1932		* Returns maximum number of tasks that can be submitted to given
1933		* pool (with bounded queue) before saturation (when submission
#	Line 1961 | Line 1938 | public class JSR166TestCase extends Test
1938		return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1939		}
1940
1941	<	static <T> void shuffle(T[] array) {
1942	<	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1941	>	@SuppressWarnings("FutureReturnValueIgnored")
1942	>	void assertNullTaskSubmissionThrowsNullPointerException(Executor e) {
1943	>	try {
1944	>	e.execute((Runnable) null);
1945	>	shouldThrow();
1946	>	} catch (NullPointerException success) {}
1947	>
1948	>	if (! (e instanceof ExecutorService)) return;
1949	>	ExecutorService es = (ExecutorService) e;
1950	>	try {
1951	>	es.submit((Runnable) null);
1952	>	shouldThrow();
1953	>	} catch (NullPointerException success) {}
1954	>	try {
1955	>	es.submit((Runnable) null, Boolean.TRUE);
1956	>	shouldThrow();
1957	>	} catch (NullPointerException success) {}
1958	>	try {
1959	>	es.submit((Callable) null);
1960	>	shouldThrow();
1961	>	} catch (NullPointerException success) {}
1962	>
1963	>	if (! (e instanceof ScheduledExecutorService)) return;
1964	>	ScheduledExecutorService ses = (ScheduledExecutorService) e;
1965	>	try {
1966	>	ses.schedule((Runnable) null,
1967	>	randomTimeout(), randomTimeUnit());
1968	>	shouldThrow();
1969	>	} catch (NullPointerException success) {}
1970	>	try {
1971	>	ses.schedule((Callable) null,
1972	>	randomTimeout(), randomTimeUnit());
1973	>	shouldThrow();
1974	>	} catch (NullPointerException success) {}
1975	>	try {
1976	>	ses.scheduleAtFixedRate((Runnable) null,
1977	>	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1978	>	shouldThrow();
1979	>	} catch (NullPointerException success) {}
1980	>	try {
1981	>	ses.scheduleWithFixedDelay((Runnable) null,
1982	>	randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
1983	>	shouldThrow();
1984	>	} catch (NullPointerException success) {}
1985	>	}
1986	>
1987	>	void setRejectedExecutionHandler(
1988	>	ThreadPoolExecutor p, RejectedExecutionHandler handler) {
1989	>	p.setRejectedExecutionHandler(handler);
1990	>	assertSame(handler, p.getRejectedExecutionHandler());
1991	>	}
1992	>
1993	>	void assertTaskSubmissionsAreRejected(ThreadPoolExecutor p) {
1994	>	final RejectedExecutionHandler savedHandler = p.getRejectedExecutionHandler();
1995	>	final long savedTaskCount = p.getTaskCount();
1996	>	final long savedCompletedTaskCount = p.getCompletedTaskCount();
1997	>	final int savedQueueSize = p.getQueue().size();
1998	>	final boolean stock = (p.getClass().getClassLoader() == null);
1999	>
2000	>	Runnable r = () -> {};
2001	>	Callable<Boolean> c = () -> Boolean.TRUE;
2002	>
2003	>	class Recorder implements RejectedExecutionHandler {
2004	>	public volatile Runnable r = null;
2005	>	public volatile ThreadPoolExecutor p = null;
2006	>	public void reset() { r = null; p = null; }
2007	>	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
2008	>	assertNull(this.r);
2009	>	assertNull(this.p);
2010	>	this.r = r;
2011	>	this.p = p;
2012	>	}
2013	>	}
2014	>
2015	>	// check custom handler is invoked exactly once per task
2016	>	Recorder recorder = new Recorder();
2017	>	setRejectedExecutionHandler(p, recorder);
2018	>	for (int i = 2; i--> 0; ) {
2019	>	recorder.reset();
2020	>	p.execute(r);
2021	>	if (stock && p.getClass() == ThreadPoolExecutor.class)
2022	>	assertSame(r, recorder.r);
2023	>	assertSame(p, recorder.p);
2024	>
2025	>	recorder.reset();
2026	>	assertFalse(p.submit(r).isDone());
2027	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2028	>	assertSame(p, recorder.p);
2029	>
2030	>	recorder.reset();
2031	>	assertFalse(p.submit(r, Boolean.TRUE).isDone());
2032	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2033	>	assertSame(p, recorder.p);
2034	>
2035	>	recorder.reset();
2036	>	assertFalse(p.submit(c).isDone());
2037	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2038	>	assertSame(p, recorder.p);
2039	>
2040	>	if (p instanceof ScheduledExecutorService) {
2041	>	ScheduledExecutorService s = (ScheduledExecutorService) p;
2042	>	ScheduledFuture<?> future;
2043	>
2044	>	recorder.reset();
2045	>	future = s.schedule(r, randomTimeout(), randomTimeUnit());
2046	>	assertFalse(future.isDone());
2047	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2048	>	assertSame(p, recorder.p);
2049	>
2050	>	recorder.reset();
2051	>	future = s.schedule(c, randomTimeout(), randomTimeUnit());
2052	>	assertFalse(future.isDone());
2053	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2054	>	assertSame(p, recorder.p);
2055	>
2056	>	recorder.reset();
2057	>	future = s.scheduleAtFixedRate(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2058	>	assertFalse(future.isDone());
2059	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2060	>	assertSame(p, recorder.p);
2061	>
2062	>	recorder.reset();
2063	>	future = s.scheduleWithFixedDelay(r, randomTimeout(), LONG_DELAY_MS, MILLISECONDS);
2064	>	assertFalse(future.isDone());
2065	>	if (stock) assertTrue(!((FutureTask) recorder.r).isDone());
2066	>	assertSame(p, recorder.p);
2067	>	}
2068	>	}
2069	>
2070	>	// Checking our custom handler above should be sufficient, but
2071	>	// we add some integration tests of standard handlers.
2072	>	final AtomicReference<Thread> thread = new AtomicReference<>();
2073	>	final Runnable setThread = () -> thread.set(Thread.currentThread());
2074	>
2075	>	setRejectedExecutionHandler(p, new ThreadPoolExecutor.AbortPolicy());
2076	>	try {
2077	>	p.execute(setThread);
2078	>	shouldThrow();
2079	>	} catch (RejectedExecutionException success) {}
2080	>	assertNull(thread.get());
2081	>
2082	>	setRejectedExecutionHandler(p, new ThreadPoolExecutor.DiscardPolicy());
2083	>	p.execute(setThread);
2084	>	assertNull(thread.get());
2085	>
2086	>	setRejectedExecutionHandler(p, new ThreadPoolExecutor.CallerRunsPolicy());
2087	>	p.execute(setThread);
2088	>	if (p.isShutdown())
2089	>	assertNull(thread.get());
2090	>	else
2091	>	assertSame(Thread.currentThread(), thread.get());
2092	>
2093	>	setRejectedExecutionHandler(p, savedHandler);
2094	>
2095	>	// check that pool was not perturbed by handlers
2096	>	assertEquals(savedTaskCount, p.getTaskCount());
2097	>	assertEquals(savedCompletedTaskCount, p.getCompletedTaskCount());
2098	>	assertEquals(savedQueueSize, p.getQueue().size());
2099		}
2100		}

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