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

Comparing jsr166/src/test/tck/ExecutorCompletionServiceTest.java (file contents):
Revision 1.5 by dl, Mon Aug 1 19:54:04 2005 UTC vs.
Revision 1.14 by dl, Fri May 6 11:22:07 2011 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9
10		import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14		import java.util.concurrent.atomic.*;
15		import java.math.BigInteger;
16		import java.security.*;
17
18	<	public class ExecutorCompletionServiceTest extends JSR166TestCase{
18	>	public class ExecutorCompletionServiceTest extends JSR166TestCase {
19		public static void main(String[] args) {
20	<	junit.textui.TestRunner.run (suite());
20	>	junit.textui.TestRunner.run(suite());
21		}
22		public static Test suite() {
23		return new TestSuite(ExecutorCompletionServiceTest.class);
#	Line 25 | Line 26 | public class ExecutorCompletionServiceTe
26
27		/**
28		* Creating a new ECS with null Executor throw NPE
29	<	*/
29	>	*/
30		public void testConstructorNPE() {
31		try {
32		ExecutorCompletionService ecs = new ExecutorCompletionService(null);
33		shouldThrow();
34	<	} catch (NullPointerException success) {
34	<	}
34	>	} catch (NullPointerException success) {}
35		}
36
37		/**
38		* Creating a new ECS with null queue throw NPE
39	<	*/
39	>	*/
40		public void testConstructorNPE2() {
41		try {
42		ExecutorService e = Executors.newCachedThreadPool();
43		ExecutorCompletionService ecs = new ExecutorCompletionService(e, null);
44		shouldThrow();
45	<	} catch (NullPointerException success) {
46	<	}
45	>	} catch (NullPointerException success) {}
46		}
47
48		/**
49		* Submitting a null callable throws NPE
50	<	*/
50	>	*/
51		public void testSubmitNPE() {
52		ExecutorService e = Executors.newCachedThreadPool();
53		ExecutorCompletionService ecs = new ExecutorCompletionService(e);
#	Line 64 | Line 63 | public class ExecutorCompletionServiceTe
63
64		/**
65		* Submitting a null runnable throws NPE
66	<	*/
66	>	*/
67		public void testSubmitNPE2() {
68		ExecutorService e = Executors.newCachedThreadPool();
69		ExecutorCompletionService ecs = new ExecutorCompletionService(e);
#	Line 80 | Line 79 | public class ExecutorCompletionServiceTe
79
80		/**
81		* A taken submitted task is completed
82	<	*/
83	<	public void testTake() {
82	>	*/
83	>	public void testTake() throws InterruptedException {
84		ExecutorService e = Executors.newCachedThreadPool();
85		ExecutorCompletionService ecs = new ExecutorCompletionService(e);
86		try {
#	Line 89 | Line 88 | public class ExecutorCompletionServiceTe
88		ecs.submit(c);
89		Future f = ecs.take();
90		assertTrue(f.isDone());
92	–	} catch (Exception ex) {
93	–	unexpectedException();
91		} finally {
92		joinPool(e);
93		}
#	Line 98 | Line 95 | public class ExecutorCompletionServiceTe
95
96		/**
97		* Take returns the same future object returned by submit
98	<	*/
99	<	public void testTake2() {
98	>	*/
99	>	public void testTake2() throws InterruptedException {
100		ExecutorService e = Executors.newCachedThreadPool();
101		ExecutorCompletionService ecs = new ExecutorCompletionService(e);
102		try {
#	Line 107 | Line 104 | public class ExecutorCompletionServiceTe
104		Future f1 = ecs.submit(c);
105		Future f2 = ecs.take();
106		assertSame(f1, f2);
110	–	} catch (Exception ex) {
111	–	unexpectedException();
107		} finally {
108		joinPool(e);
109		}
#	Line 116 | Line 111 | public class ExecutorCompletionServiceTe
111
112		/**
113		* If poll returns non-null, the returned task is completed
114	<	*/
115	<	public void testPoll1() {
114	>	*/
115	>	public void testPoll1() throws InterruptedException {
116		ExecutorService e = Executors.newCachedThreadPool();
117		ExecutorCompletionService ecs = new ExecutorCompletionService(e);
118		try {
119		assertNull(ecs.poll());
120		Callable c = new StringTask();
121		ecs.submit(c);
122	<	Thread.sleep(SHORT_DELAY_MS);
122	>	delay(SHORT_DELAY_MS);
123		for (;;) {
124		Future f = ecs.poll();
125		if (f != null) {
#	Line 132 | Line 127 | public class ExecutorCompletionServiceTe
127		break;
128		}
129		}
135	–	} catch (Exception ex) {
136	–	unexpectedException();
130		} finally {
131		joinPool(e);
132		}
#	Line 141 | Line 134 | public class ExecutorCompletionServiceTe
134
135		/**
136		* If timed poll returns non-null, the returned task is completed
137	<	*/
138	<	public void testPoll2() {
137	>	*/
138	>	public void testPoll2() throws InterruptedException {
139		ExecutorService e = Executors.newCachedThreadPool();
140		ExecutorCompletionService ecs = new ExecutorCompletionService(e);
141		try {
142		assertNull(ecs.poll());
143		Callable c = new StringTask();
144		ecs.submit(c);
145	<	Future f = ecs.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
146	<	if (f != null)
145	>	Future f = ecs.poll(SHORT_DELAY_MS, MILLISECONDS);
146	>	if (f != null)
147		assertTrue(f.isDone());
155	–	} catch (Exception ex) {
156	–	unexpectedException();
148		} finally {
149		joinPool(e);
150		}
151		}
152	<	/**
153	<	* Submitting to underlying AES that overrides newTaskFor(Callable)
154	<	* returns and eventually runs Future returned by newTaskFor.
155	<	*/
156	<	public void testNewTaskForCallable() {
157	<	final AtomicBoolean done = new AtomicBoolean(false);
158	<	class MyCallableFuture<V> extends FutureTask<V> {
159	<	MyCallableFuture(Callable<V> c) { super(c); }
160	<	protected void done() { done.set(true); }
161	<	}
162	<	ExecutorService e = new ThreadPoolExecutor(
152	>
153	>	/**
154	>	* Submitting to underlying AES that overrides newTaskFor(Callable)
155	>	* returns and eventually runs Future returned by newTaskFor.
156	>	*/
157	>	public void testNewTaskForCallable() throws InterruptedException {
158	>	final AtomicBoolean done = new AtomicBoolean(false);
159	>	class MyCallableFuture<V> extends FutureTask<V> {
160	>	MyCallableFuture(Callable<V> c) { super(c); }
161	>	protected void done() { done.set(true); }
162	>	}
163	>	ExecutorService e = new ThreadPoolExecutor(
164		1, 1, 30L, TimeUnit.SECONDS,
165		new ArrayBlockingQueue<Runnable>(1)) {
166	<	protected <T> RunnableFuture<T> newTaskFor(Callable<T> c) {
167	<	return new MyCallableFuture<T>(c);
168	<	}
169	<	};
170	<	ExecutorCompletionService<String> ecs =
171	<	new ExecutorCompletionService<String>(e);
172	<	try {
173	<	assertNull(ecs.poll());
174	<	Callable<String> c = new StringTask();
175	<	Future f1 = ecs.submit(c);
176	<	assertTrue("submit must return MyCallableFuture",
177	<	f1 instanceof MyCallableFuture);
178	<	Future f2 = ecs.take();
179	<	assertSame("submit and take must return same objects", f1, f2);
180	<	assertTrue("completed task must have set done", done.get());
181	<	} catch (Exception ex) {
182	<	unexpectedException();
183	<	} finally {
184	<	joinPool(e);
185	<	}
186	<	}
187	<
188	<	/**
189	<	* Submitting to underlying AES that overrides newTaskFor(Runnable,T)
190	<	* returns and eventually runs Future returned by newTaskFor.
191	<	*/
192	<	public void testNewTaskForRunnable() {
193	<	final AtomicBoolean done = new AtomicBoolean(false);
194	<	class MyRunnableFuture<V> extends FutureTask<V> {
195	<	MyRunnableFuture(Runnable t, V r) { super(t, r); }
204	<	protected void done() { done.set(true); }
205	<	}
206	<	ExecutorService e = new ThreadPoolExecutor(
166	>	protected <T> RunnableFuture<T> newTaskFor(Callable<T> c) {
167	>	return new MyCallableFuture<T>(c);
168	>	}};
169	>	ExecutorCompletionService<String> ecs =
170	>	new ExecutorCompletionService<String>(e);
171	>	try {
172	>	assertNull(ecs.poll());
173	>	Callable<String> c = new StringTask();
174	>	Future f1 = ecs.submit(c);
175	>	assertTrue("submit must return MyCallableFuture",
176	>	f1 instanceof MyCallableFuture);
177	>	Future f2 = ecs.take();
178	>	assertSame("submit and take must return same objects", f1, f2);
179	>	assertTrue("completed task must have set done", done.get());
180	>	} finally {
181	>	joinPool(e);
182	>	}
183	>	}
184	>
185	>	/**
186	>	* Submitting to underlying AES that overrides newTaskFor(Runnable,T)
187	>	* returns and eventually runs Future returned by newTaskFor.
188	>	*/
189	>	public void testNewTaskForRunnable() throws InterruptedException {
190	>	final AtomicBoolean done = new AtomicBoolean(false);
191	>	class MyRunnableFuture<V> extends FutureTask<V> {
192	>	MyRunnableFuture(Runnable t, V r) { super(t, r); }
193	>	protected void done() { done.set(true); }
194	>	}
195	>	ExecutorService e = new ThreadPoolExecutor(
196		1, 1, 30L, TimeUnit.SECONDS,
197		new ArrayBlockingQueue<Runnable>(1)) {
198	<	protected <T> RunnableFuture<T> newTaskFor(Runnable t, T r) {
199	<	return new MyRunnableFuture<T>(t, r);
200	<	}
201	<	};
202	<	ExecutorCompletionService<String> ecs =
203	<	new ExecutorCompletionService<String>(e);
204	<	try {
205	<	assertNull(ecs.poll());
206	<	Callable<String> c = new StringTask();
207	<	Future f1 = ecs.submit(c);
208	<	assertTrue("submit must return MyRunnableFuture",
209	<	f1 instanceof MyRunnableFuture);
210	<	Future f2 = ecs.take();
211	<	assertSame("submit and take must return same objects", f1, f2);
212	<	assertTrue("completed task must have set done", done.get());
213	<	} catch (Exception ex) {
214	<	unexpectedException();
215	<	} finally {
227	<	joinPool(e);
228	<	}
229	<	}
230	<
231	<
198	>	protected <T> RunnableFuture<T> newTaskFor(Runnable t, T r) {
199	>	return new MyRunnableFuture<T>(t, r);
200	>	}};
201	>	ExecutorCompletionService<String> ecs =
202	>	new ExecutorCompletionService<String>(e);
203	>	try {
204	>	assertNull(ecs.poll());
205	>	Runnable r = new NoOpRunnable();
206	>	Future f1 = ecs.submit(r, null);
207	>	assertTrue("submit must return MyRunnableFuture",
208	>	f1 instanceof MyRunnableFuture);
209	>	Future f2 = ecs.take();
210	>	assertSame("submit and take must return same objects", f1, f2);
211	>	assertTrue("completed task must have set done", done.get());
212	>	} finally {
213	>	joinPool(e);
214	>	}
215	>	}
216
217		}

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