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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.2 by dl, Sun Sep 7 20:39:11 2003 UTC vs.
Revision 1.10 by tim, Wed Dec 10 01:51:12 2003 UTC

#	Line 10 | Line 10 | import junit.framework.*;
10		import java.util.*;
11		import java.util.concurrent.*;
12		import java.math.BigInteger;
13	+	import java.security.*;
14
15	<	public class ExecutorsTest extends TestCase{
15	<
15	>	public class ExecutorsTest extends JSR166TestCase{
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run (suite());
17	>	junit.textui.TestRunner.run (suite());
18		}
19	–
20	–
19		public static Test suite() {
20	<	return new TestSuite(ExecutorsTest.class);
20	>	return new TestSuite(ExecutorsTest.class);
21		}
22
23	<	private static long SHORT_DELAY_MS = 100;
24	<	private static long MEDIUM_DELAY_MS = 1000;
25	<	private static long LONG_DELAY_MS = 10000;
26	<
27	<	class SleepRun implements Runnable {
28	<	public void run() {
29	<	try{
30	<	Thread.sleep(MEDIUM_DELAY_MS);
31	<	} catch(InterruptedException e){
34	<	fail("unexpected exception");
35	<	}
23	>	static class TimedCallable<T> implements Callable<T> {
24	>	private final ExecutorService exec;
25	>	private final Callable<T> func;
26	>	private final long msecs;
27	>
28	>	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
29	>	this.exec = exec;
30	>	this.func = func;
31	>	this.msecs = msecs;
32		}
33	<	}
34	<
35	<
36	<	class SleepCall implements Callable {
37	<	public Object call(){
38	<	try{
39	<	Thread.sleep(MEDIUM_DELAY_MS);
44	<	}catch(InterruptedException e){
45	<	fail("unexpected exception");
33	>
34	>	public T call() throws Exception {
35	>	Future<T> ftask = exec.submit(func);
36	>	try {
37	>	return ftask.get(msecs, TimeUnit.MILLISECONDS);
38	>	} finally {
39	>	ftask.cancel(true);
40		}
47	–	return Boolean.TRUE;
41		}
42		}
43
44
45	<
46	<	/**
47	<	*  Test to verify execute(Executor, Runnable) will throw
48	<	*  RejectedExecutionException Attempting to execute a runnable on
49	<	*  a full ThreadPool will cause such an exception here, up to 5
50	<	*  runnables are attempted on a pool capable on handling one
51	<	*  until it throws an exception
52	<	*/
53	<	public void testExecute1(){
54	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
55	<	try{
56	<
57	<	for(int i = 0; i < 5; ++i){
65	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
45	>	private static class Fib implements Callable<BigInteger> {
46	>	private final BigInteger n;
47	>	Fib(long n) {
48	>	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
49	>	this.n = BigInteger.valueOf(n);
50	>	}
51	>	public BigInteger call() {
52	>	BigInteger f1 = BigInteger.ONE;
53	>	BigInteger f2 = f1;
54	>	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
55	>	BigInteger t = f1.add(f2);
56	>	f1 = f2;
57	>	f2 = t;
58		}
59	<	fail("should throw");
60	<	} catch(RejectedExecutionException success){}
61	<	p.shutdownNow();
70	<	}
59	>	return f1;
60	>	}
61	>	};
62
63		/**
64	<	*  Test to verify execute(Executor, Callable) will throw
65	<	*  RejectedExecutionException Attempting to execute a callable on
66	<	*  a full ThreadPool will cause such an exception here, up to 5
67	<	*  runnables are attempted on a pool capable on handling one
68	<	*  until it throws an exception
69	<	*/
70	<	public void testExecute2(){
71	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
81	<	try{
82	<	for(int i = 0; i < 5; ++i) {
83	<	Executors.execute(p, new SleepCall());
84	<	}
85	<	fail("should throw");
86	<	}catch(RejectedExecutionException e){}
87	<	p.shutdownNow();
64	>	* A newCachedThreadPool can execute runnables
65	>	*/
66	>	public void testNewCachedThreadPool1() {
67	>	ExecutorService e = Executors.newCachedThreadPool();
68	>	e.execute(new NoOpRunnable());
69	>	e.execute(new NoOpRunnable());
70	>	e.execute(new NoOpRunnable());
71	>	e.shutdown();
72		}
73
90	–
74		/**
75	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
76	<	*  A single use of invoke starts that will wait long enough
77	<	*  for the invoking thread to be interrupted
78	<	*/
79	<	public void testInvoke2(){
80	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
81	<	Thread t = new Thread(new Runnable() {
82	<	public void run(){
100	<	try{
101	<	Executors.invoke(p,new Runnable(){
102	<	public void run(){
103	<	try{
104	<	Thread.sleep(MEDIUM_DELAY_MS);
105	<	fail("should throw");
106	<	}catch(InterruptedException e){
107	<	}
108	<	}
109	<	});
110	<	} catch(InterruptedException success){
111	<	} catch(Exception e) {
112	<	fail("unexpected exception");
113	<	}
114	<
115	<	}
116	<	});
117	<	try{
118	<	t.start();
119	<	Thread.sleep(SHORT_DELAY_MS);
120	<	t.interrupt();
121	<	}catch(Exception e){
122	<	fail("unexpected exception");
123	<	}
124	<	p.shutdownNow();
75	>	* A newCachedThreadPool with given ThreadFactory can execute runnables
76	>	*/
77	>	public void testNewCachedThreadPool2() {
78	>	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
79	>	e.execute(new NoOpRunnable());
80	>	e.execute(new NoOpRunnable());
81	>	e.execute(new NoOpRunnable());
82	>	e.shutdown();
83		}
84
85		/**
86	<	*  Test to verify invoke(Executor, Runnable) will throw
87	<	*  ExecutionException An ExecutionException occurs when the
88	<	*  underlying Runnable throws an exception, here the
89	<	*  DivideByZeroException will cause an ExecutionException
90	<	*/
91	<	public void testInvoke3(){
92	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
93	<	try{
136	<	Runnable r = new Runnable(){
137	<	public void run(){
138	<	int i = 5/0;
139	<	}
140	<	};
141	<
142	<	for(int i =0; i < 5; i++){
143	<	Executors.invoke(p,r);
144	<	}
145	<
146	<	fail("should throw");
147	<	} catch(ExecutionException success){
148	<	} catch(Exception e){
149	<	fail("should throw EE");
86	>	* A newCachedThreadPool with null ThreadFactory throws NPE
87	>	*/
88	>	public void testNewCachedThreadPool3() {
89	>	try {
90	>	ExecutorService e = Executors.newCachedThreadPool(null);
91	>	shouldThrow();
92	>	}
93	>	catch(NullPointerException success) {
94		}
151	–	p.shutdownNow();
95		}
96
97
155	–
98		/**
99	<	*  Test to verify invoke(Executor, Callable) throws
158	<	*  InterruptedException A single use of invoke starts that will
159	<	*  wait long enough for the invoking thread to be interrupted
99	>	* A new SingleThreadExecutor can execute runnables
100		*/
101	<	public void testInvoke5(){
102	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
103	<
104	<	final Callable c = new Callable(){
105	<	public Object call(){
106	<	try{
167	<	Executors.invoke(p, new SleepCall());
168	<	fail("should throw");
169	<	}catch(InterruptedException e){}
170	<	catch(RejectedExecutionException e2){}
171	<	catch(ExecutionException e3){}
172	<	return Boolean.TRUE;
173	<	}
174	<	};
175	<
176	<
177	<
178	<	Thread t = new Thread(new Runnable(){
179	<	public void run(){
180	<	try{
181	<	c.call();
182	<	}catch(Exception e){}
183	<	}
184	<	});
185	<	try{
186	<	t.start();
187	<	Thread.sleep(SHORT_DELAY_MS);
188	<	t.interrupt();
189	<	t.join();
190	<	}catch(InterruptedException e){
191	<	fail("unexpected exception");
192	<	}
193	<
194	<	p.shutdownNow();
101	>	public void testNewSingleThreadExecutor1() {
102	>	ExecutorService e = Executors.newSingleThreadExecutor();
103	>	e.execute(new NoOpRunnable());
104	>	e.execute(new NoOpRunnable());
105	>	e.execute(new NoOpRunnable());
106	>	e.shutdown();
107		}
108
109		/**
110	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
199	<	*  An ExecutionException occurs when the underlying Runnable throws
200	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
110	>	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
111		*/
112	<	public void testInvoke6(){
113	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
114	<
115	<	try{
116	<	Callable c = new Callable(){
117	<	public Object call(){
208	<	int i = 5/0;
209	<	return Boolean.TRUE;
210	<	}
211	<	};
212	<
213	<	for(int i =0; i < 5; i++){
214	<	Executors.invoke(p,c);
215	<	}
216	<
217	<	fail("should throw");
218	<	}catch(RejectedExecutionException e){}
219	<	catch(InterruptedException e2){}
220	<	catch(ExecutionException e3){}
221	<	p.shutdownNow();
112	>	public void testNewSingleThreadExecutor2() {
113	>	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
114	>	e.execute(new NoOpRunnable());
115	>	e.execute(new NoOpRunnable());
116	>	e.execute(new NoOpRunnable());
117	>	e.shutdown();
118		}
119
120	<	public void testExecuteRunnable () {
120	>	/**
121	>	* A new SingleThreadExecutor with null ThreadFactory throws NPE
122	>	*/
123	>	public void testNewSingleThreadExecutor3() {
124		try {
125	<	Executor e = new DirectExecutor();
126	<	Task task = new Task();
228	<
229	<	assertFalse("task should not be complete", task.isCompleted());
230	<
231	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
232	<	String result = future.get();
233	<
234	<	assertTrue("task should be complete", task.isCompleted());
235	<	assertSame("should return test string", TEST_STRING, result);
236	<	}
237	<	catch (ExecutionException ex) {
238	<	fail("Unexpected exception");
125	>	ExecutorService e = Executors.newSingleThreadExecutor(null);
126	>	shouldThrow();
127		}
128	<	catch (InterruptedException ex) {
241	<	fail("Unexpected exception");
128	>	catch(NullPointerException success) {
129		}
130		}
131
132	<	public void testInvokeRunnable () {
133	<	try {
134	<	Executor e = new DirectExecutor();
135	<	Task task = new Task();
136	<
137	<	assertFalse("task should not be complete", task.isCompleted());
138	<
139	<	Executors.invoke(e, task);
132	>	/**
133	>	* A new newFixedThreadPool can execute runnables
134	>	*/
135	>	public void testNewFixedThreadPool1() {
136	>	ExecutorService e = Executors.newFixedThreadPool(2);
137	>	e.execute(new NoOpRunnable());
138	>	e.execute(new NoOpRunnable());
139	>	e.execute(new NoOpRunnable());
140	>	e.shutdown();
141	>	}
142
143	<	assertTrue("task should be complete", task.isCompleted());
144	<	}
145	<	catch (ExecutionException ex) {
146	<	fail("Unexpected exception");
147	<	}
148	<	catch (InterruptedException ex) {
149	<	fail("Unexpected exception");
150	<	}
143	>	/**
144	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
145	>	*/
146	>	public void testNewFixedThreadPool2() {
147	>	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
148	>	e.execute(new NoOpRunnable());
149	>	e.execute(new NoOpRunnable());
150	>	e.execute(new NoOpRunnable());
151	>	e.shutdown();
152		}
153
154	<	public void testExecuteCallable () {
154	>	/**
155	>	* A new newFixedThreadPool with null ThreadFactory throws NPE
156	>	*/
157	>	public void testNewFixedThreadPool3() {
158		try {
159	<	Executor e = new DirectExecutor();
160	<	Future<String> future = Executors.execute(e, new StringTask());
268	<	String result = future.get();
269	<
270	<	assertSame("should return test string", TEST_STRING, result);
271	<	}
272	<	catch (ExecutionException ex) {
273	<	fail("Unexpected exception");
159	>	ExecutorService e = Executors.newFixedThreadPool(2, null);
160	>	shouldThrow();
161		}
162	<	catch (InterruptedException ex) {
276	<	fail("Unexpected exception");
162	>	catch(NullPointerException success) {
163		}
164		}
165
166	<	public void testInvokeCallable () {
166	>	/**
167	>	* A new newFixedThreadPool with 0 threads throws IAE
168	>	*/
169	>	public void testNewFixedThreadPool4() {
170		try {
171	<	Executor e = new DirectExecutor();
172	<	String result = Executors.invoke(e, new StringTask());
284	<
285	<	assertSame("should return test string", TEST_STRING, result);
286	<	}
287	<	catch (ExecutionException ex) {
288	<	fail("Unexpected exception" );
171	>	ExecutorService e = Executors.newFixedThreadPool(0);
172	>	shouldThrow();
173		}
174	<	catch (InterruptedException ex) {
291	<	fail("Unexpected exception");
174	>	catch(IllegalArgumentException success) {
175		}
176		}
177
295	–	private static final String TEST_STRING = "a test string";
296	–
297	–	private static class Task implements Runnable {
298	–	public void run() { completed = true; }
299	–	public boolean isCompleted() { return completed; }
300	–	public void reset() { completed = false; }
301	–	private boolean completed = false;
302	–	}
303	–
304	–	private static class StringTask implements Callable<String> {
305	–	public String call() { return TEST_STRING; }
306	–	}
307	–
308	–	static class DirectExecutor implements Executor {
309	–	public void execute(Runnable r) {
310	–	r.run();
311	–	}
312	–	}
178
179		/**
180	<	* Check that timeouts from execute will time out if they compute
316	<	* too long.
180	>	*  timeouts from execute will time out if they compute too long.
181		*/
318	–
182		public void testTimedCallable() {
183		int N = 10000;
184		ExecutorService executor = Executors.newSingleThreadExecutor();
#	Line 341 | Line 204 | public class ExecutorsTest extends TestC
204		return;
205		}
206		catch (Exception e) {
207	<	fail("unexpected exception: " + e);
207	>	unexpectedException();
208		}
209		}
210		// if by chance we didn't ever time out, total time must be small
#	Line 349 | Line 212 | public class ExecutorsTest extends TestC
212		assertTrue(elapsed < N);
213		}
214		finally {
215	<	executor.shutdownNow();
215	>	joinPool(executor);
216		}
217		}
218
219
220	<	static class TimedCallable<T> implements Callable<T> {
221	<	private final Executor exec;
222	<	private final Callable<T> func;
223	<	private final long msecs;
224	<
225	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
226	<	this.exec = exec;
227	<	this.func = func;
228	<	this.msecs = msecs;
229	<	}
220	>	/**
221	>	* ThreadPoolExecutor using defaultThreadFactory has
222	>	* specified group, priority, daemon status, and name
223	>	*/
224	>	public void testDefaultThreadFactory() {
225	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
226	>	Runnable r = new Runnable() {
227	>	public void run() {
228	>	Thread current = Thread.currentThread();
229	>	threadAssertTrue(!current.isDaemon());
230	>	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
231	>	ThreadGroup g = current.getThreadGroup();
232	>	SecurityManager s = System.getSecurityManager();
233	>	if (s != null)
234	>	threadAssertTrue(g == s.getThreadGroup());
235	>	else
236	>	threadAssertTrue(g == egroup);
237	>	String name = current.getName();
238	>	threadAssertTrue(name.endsWith("thread-1"));
239	>	}
240	>	};
241	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
242
243	<	public T call() throws Exception {
244	<	Future<T> ftask = Executors.execute(exec, func);
245	<	try {
246	<	return ftask.get(msecs, TimeUnit.MILLISECONDS);
247	<	} finally {
248	<	ftask.cancel(true);
249	<	}
243	>	e.execute(r);
244	>	e.shutdown();
245	>	try {
246	>	Thread.sleep(SHORT_DELAY_MS);
247	>	} catch (Exception eX) {
248	>	unexpectedException();
249	>	} finally {
250	>	joinPool(e);
251		}
252		}
253
254	<
255	<	private static class Fib implements Callable<BigInteger> {
256	<	private final BigInteger n;
257	<	Fib(long n) {
258	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
259	<	this.n = BigInteger.valueOf(n);
260	<	}
261	<	public BigInteger call() {
262	<	BigInteger f1 = BigInteger.ONE;
263	<	BigInteger f2 = f1;
264	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
265	<	BigInteger t = f1.add(f2);
266	<	f1 = f2;
267	<	f2 = t;
268	<	}
269	<	return f1;
254	>	/**
255	>	* ThreadPoolExecutor using privilegedThreadFactory has
256	>	* specified group, priority, daemon status, name,
257	>	* access control context and context class loader
258	>	*/
259	>	public void testPrivilegedThreadFactory() {
260	>	Policy savedPolicy = Policy.getPolicy();
261	>	AdjustablePolicy policy = new AdjustablePolicy();
262	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
263	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
264	>	Policy.setPolicy(policy);
265	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
266	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
267	>	final AccessControlContext thisacc = AccessController.getContext();
268	>	Runnable r = new Runnable() {
269	>	public void run() {
270	>	Thread current = Thread.currentThread();
271	>	threadAssertTrue(!current.isDaemon());
272	>	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
273	>	ThreadGroup g = current.getThreadGroup();
274	>	SecurityManager s = System.getSecurityManager();
275	>	if (s != null)
276	>	threadAssertTrue(g == s.getThreadGroup());
277	>	else
278	>	threadAssertTrue(g == egroup);
279	>	String name = current.getName();
280	>	threadAssertTrue(name.endsWith("thread-1"));
281	>	threadAssertTrue(thisccl == current.getContextClassLoader());
282	>	threadAssertTrue(thisacc.equals(AccessController.getContext()));
283	>	}
284	>	};
285	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
286	>
287	>	Policy.setPolicy(savedPolicy);
288	>	e.execute(r);
289	>	e.shutdown();
290	>	try {
291	>	Thread.sleep(SHORT_DELAY_MS);
292	>	} catch (Exception ex) {
293	>	unexpectedException();
294	>	} finally {
295	>	joinPool(e);
296		}
395	–	};
396	–
297
298	+	}
299
300		}

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