test/tck/ExecutorsTest.java

/*
 * Written by members of JCP JSR-166 Expert Group and released to the
 * public domain. Use, modify, and redistribute this code in any way
 * without acknowledgement. Other contributors include Andrew Wright,
 * Jeffrey Hayes, Pat Fischer, Mike Judd.
 */


import junit.framework.*;
import java.util.*;
import java.util.concurrent.*;

public class ExecutorsTest extends TestCase{
    
    public static void main(String[] args) {
        junit.textui.TestRunner.run (suite());  
    }
    

    public static Test suite() {
        return new TestSuite(ExecutorsTest.class);
    }

    private static long SHORT_DELAY_MS = 100; 
    private static long MEDIUM_DELAY_MS = 1000;
    private static long LONG_DELAY_MS = 10000; 

    class SleepRun implements Runnable {
        public void run() {
            try{
                Thread.sleep(MEDIUM_DELAY_MS);
            } catch(InterruptedException e){
                fail("unexpected exception");
            }
        }
    }
    

    class SleepCall implements Callable {
        public Object call(){
            try{
                Thread.sleep(MEDIUM_DELAY_MS);
            }catch(InterruptedException e){
                fail("unexpected exception");
            }
            return Boolean.TRUE;
        }
    }


    /**
     *  Test to verify execute(Executor, Runnable) will throw
     *  RejectedExecutionException Attempting to execute a runnable on
     *  a full ThreadPool will cause such an exception here, up to 5
     *  runnables are attempted on a pool capable on handling one
     *  until it throws an exception
     */
    public void testExecute1(){
        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
        try{
            
            for(int i = 0; i < 5; ++i){
                Executors.execute(p, new SleepRun(), Boolean.TRUE);
            }
            fail("should throw");
        } catch(RejectedExecutionException success){}
        p.shutdownNow();
    }

    /**
     *  Test to verify execute(Executor, Callable) will throw
     *  RejectedExecutionException Attempting to execute a callable on
     *  a full ThreadPool will cause such an exception here, up to 5
     *  runnables are attempted on a pool capable on handling one
     *  until it throws an exception
     */
    public void testExecute2(){
         ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
        try{
            for(int i = 0; i < 5; ++i) {
                Executors.execute(p, new SleepCall());
            }
            fail("should throw");
        }catch(RejectedExecutionException e){}
        p.shutdownNow();
    }


    /**
     *  Test to verify invoke(Executor, Runnable) throws InterruptedException
     *  A single use of invoke starts that will wait long enough
     *  for the invoking thread to be interrupted
     */
    public void testInvoke2(){
        final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
        Thread t = new Thread(new Runnable() {
                public void run(){
                    try{
                        Executors.invoke(p,new Runnable(){
                                public void run(){
                                    try{
                                        Thread.sleep(MEDIUM_DELAY_MS);
                                        fail("should throw");
                                    }catch(InterruptedException e){
                                    }
                                }
                            });
                    } catch(InterruptedException success){
                    } catch(Exception e) {
                        fail("unexpected exception");
                    }
                    
                }
            }); 
        try{
            t.start();
            Thread.sleep(SHORT_DELAY_MS);
            t.interrupt();
        }catch(Exception e){
            fail("unexpected exception");
        }
        p.shutdownNow();
    }

    /**
     *  Test to verify invoke(Executor, Runnable) will throw
     *  ExecutionException An ExecutionException occurs when the
     *  underlying Runnable throws an exception, here the
     *  DivideByZeroException will cause an ExecutionException
     */
    public void testInvoke3(){
        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
        try{
            Runnable r = new Runnable(){
                    public void run(){
                        int i = 5/0;
                    }
                };
            
            for(int i =0; i < 5; i++){
                Executors.invoke(p,r);
            }
            
            fail("should throw");
        } catch(ExecutionException success){
        } catch(Exception e){
            fail("should throw EE");
        }
        p.shutdownNow();
    }


    /**
     *  Test to verify invoke(Executor, Callable) throws
     *  InterruptedException A single use of invoke starts that will
     *  wait long enough for the invoking thread to be interrupted
     */
    public void testInvoke5(){
        final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
        
        final Callable c = new Callable(){
                public Object call(){
                    try{
                        Executors.invoke(p, new SleepCall());
                        fail("should throw");
                    }catch(InterruptedException e){}
                    catch(RejectedExecutionException e2){}
                    catch(ExecutionException e3){}
                    return Boolean.TRUE;
                }
            };


        Thread t = new Thread(new Runnable(){
                public void run(){
                    try{
                        c.call();
                    }catch(Exception e){}
                }
          });
        try{
            t.start();
            Thread.sleep(SHORT_DELAY_MS);
            t.interrupt();
            t.join();
        }catch(InterruptedException e){
            fail("unexpected exception");
        }
        
        p.shutdownNow();
    }

    /**
     *  Test to verify invoke(Executor, Callable) will throw ExecutionException
     *  An ExecutionException occurs when the underlying Runnable throws
     *  an exception, here the DivideByZeroException will cause an ExecutionException
     */
    public void testInvoke6(){
        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));

        try{
            Callable c = new Callable(){
                    public Object call(){
                        int i = 5/0;
                        return Boolean.TRUE;
                    }
                };
            
            for(int i =0; i < 5; i++){
                Executors.invoke(p,c);
            }
            
            fail("should throw");
        }catch(RejectedExecutionException e){}
        catch(InterruptedException e2){}
        catch(ExecutionException e3){}
        p.shutdownNow();
    }

    public void testExecuteRunnable () {
        try {
            Executor e = new DirectExecutor();
            Task task = new Task();

            assertFalse("task should not be complete", task.isCompleted());

            Future<String> future = Executors.execute(e, task, TEST_STRING);
            String result = future.get();

            assertTrue("task should be complete", task.isCompleted());
            assertSame("should return test string", TEST_STRING, result);
        }
        catch (ExecutionException ex) {
            fail("Unexpected exception");
        }
        catch (InterruptedException ex) {
            fail("Unexpected exception");
        }
    }

    public void testInvokeRunnable () {
        try {
            Executor e = new DirectExecutor();
            Task task = new Task();

            assertFalse("task should not be complete", task.isCompleted());

            Executors.invoke(e, task);

            assertTrue("task should be complete", task.isCompleted());
        }
        catch (ExecutionException ex) {
            fail("Unexpected exception");
        }
        catch (InterruptedException ex) {
            fail("Unexpected exception");
        }
    }

    public void testExecuteCallable () {
        try {
            Executor e = new DirectExecutor();
            Future<String> future = Executors.execute(e, new StringTask());
            String result = future.get();

            assertSame("should return test string", TEST_STRING, result);
        }
        catch (ExecutionException ex) {
            fail("Unexpected exception");
        }
        catch (InterruptedException ex) {
            fail("Unexpected exception");
        }
    }

    public void testInvokeCallable () {
        try {
            Executor e = new DirectExecutor();
            String result = Executors.invoke(e, new StringTask());

            assertSame("should return test string", TEST_STRING, result);
        }
        catch (ExecutionException ex) {
            fail("Unexpected exception" );
        }
        catch (InterruptedException ex) {
            fail("Unexpected exception");
        }
    }

    private static final String TEST_STRING = "a test string";

    private static class Task implements Runnable {
        public void run() { completed = true; }
        public boolean isCompleted() { return completed; }
        public void reset() { completed = false; }
        private boolean completed = false;
    }

    private static class StringTask implements Callable<String> {
        public String call() { return TEST_STRING; }
    }

    static class DirectExecutor implements Executor {
        public void execute(Runnable r) {
            r.run();
        }
    }


}
Revision:	1.1
Committed:	Sun Aug 31 19:24:55 2003 UTC (20 years, 8 months ago) by dl
Branch:	MAIN
Log Message:	First check-in of tests to be in tck
#	Content
1	/*
2	* Written by members of JCP JSR-166 Expert Group and released to the
3	* public domain. Use, modify, and redistribute this code in any way
4	* without acknowledgement. Other contributors include Andrew Wright,
5	* Jeffrey Hayes, Pat Fischer, Mike Judd.
6	*/
7
8
9	import junit.framework.*;
10	import java.util.*;
11	import java.util.concurrent.*;
12
13	public class ExecutorsTest extends TestCase{
14
15	public static void main(String[] args) {
16	junit.textui.TestRunner.run (suite());
17	}
18
19
20	public static Test suite() {
21	return new TestSuite(ExecutorsTest.class);
22	}
23
24	private static long SHORT_DELAY_MS = 100;
25	private static long MEDIUM_DELAY_MS = 1000;
26	private static long LONG_DELAY_MS = 10000;
27
28	class SleepRun implements Runnable {
29	public void run() {
30	try{
31	Thread.sleep(MEDIUM_DELAY_MS);
32	} catch(InterruptedException e){
33	fail("unexpected exception");
34	}
35	}
36	}
37
38
39	class SleepCall implements Callable {
40	public Object call(){
41	try{
42	Thread.sleep(MEDIUM_DELAY_MS);
43	}catch(InterruptedException e){
44	fail("unexpected exception");
45	}
46	return Boolean.TRUE;
47	}
48	}
49
50
51
52	/**
53	* Test to verify execute(Executor, Runnable) will throw
54	* RejectedExecutionException Attempting to execute a runnable on
55	* a full ThreadPool will cause such an exception here, up to 5
56	* runnables are attempted on a pool capable on handling one
57	* until it throws an exception
58	*/
59	public void testExecute1(){
60	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
61	try{
62
63	for(int i = 0; i < 5; ++i){
64	Executors.execute(p, new SleepRun(), Boolean.TRUE);
65	}
66	fail("should throw");
67	} catch(RejectedExecutionException success){}
68	p.shutdownNow();
69	}
70
71	/**
72	* Test to verify execute(Executor, Callable) will throw
73	* RejectedExecutionException Attempting to execute a callable on
74	* a full ThreadPool will cause such an exception here, up to 5
75	* runnables are attempted on a pool capable on handling one
76	* until it throws an exception
77	*/
78	public void testExecute2(){
79	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
80	try{
81	for(int i = 0; i < 5; ++i) {
82	Executors.execute(p, new SleepCall());
83	}
84	fail("should throw");
85	}catch(RejectedExecutionException e){}
86	p.shutdownNow();
87	}
88
89
90	/**
91	* Test to verify invoke(Executor, Runnable) throws InterruptedException
92	* A single use of invoke starts that will wait long enough
93	* for the invoking thread to be interrupted
94	*/
95	public void testInvoke2(){
96	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
97	Thread t = new Thread(new Runnable() {
98	public void run(){
99	try{
100	Executors.invoke(p,new Runnable(){
101	public void run(){
102	try{
103	Thread.sleep(MEDIUM_DELAY_MS);
104	fail("should throw");
105	}catch(InterruptedException e){
106	}
107	}
108	});
109	} catch(InterruptedException success){
110	} catch(Exception e) {
111	fail("unexpected exception");
112	}
113
114	}
115	});
116	try{
117	t.start();
118	Thread.sleep(SHORT_DELAY_MS);
119	t.interrupt();
120	}catch(Exception e){
121	fail("unexpected exception");
122	}
123	p.shutdownNow();
124	}
125
126	/**
127	* Test to verify invoke(Executor, Runnable) will throw
128	* ExecutionException An ExecutionException occurs when the
129	* underlying Runnable throws an exception, here the
130	* DivideByZeroException will cause an ExecutionException
131	*/
132	public void testInvoke3(){
133	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
134	try{
135	Runnable r = new Runnable(){
136	public void run(){
137	int i = 5/0;
138	}
139	};
140
141	for(int i =0; i < 5; i++){
142	Executors.invoke(p,r);
143	}
144
145	fail("should throw");
146	} catch(ExecutionException success){
147	} catch(Exception e){
148	fail("should throw EE");
149	}
150	p.shutdownNow();
151	}
152
153
154
155	/**
156	* Test to verify invoke(Executor, Callable) throws
157	* InterruptedException A single use of invoke starts that will
158	* wait long enough for the invoking thread to be interrupted
159	*/
160	public void testInvoke5(){
161	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
162
163	final Callable c = new Callable(){
164	public Object call(){
165	try{
166	Executors.invoke(p, new SleepCall());
167	fail("should throw");
168	}catch(InterruptedException e){}
169	catch(RejectedExecutionException e2){}
170	catch(ExecutionException e3){}
171	return Boolean.TRUE;
172	}
173	};
174
175
176
177	Thread t = new Thread(new Runnable(){
178	public void run(){
179	try{
180	c.call();
181	}catch(Exception e){}
182	}
183	});
184	try{
185	t.start();
186	Thread.sleep(SHORT_DELAY_MS);
187	t.interrupt();
188	t.join();
189	}catch(InterruptedException e){
190	fail("unexpected exception");
191	}
192
193	p.shutdownNow();
194	}
195
196	/**
197	* Test to verify invoke(Executor, Callable) will throw ExecutionException
198	* An ExecutionException occurs when the underlying Runnable throws
199	* an exception, here the DivideByZeroException will cause an ExecutionException
200	*/
201	public void testInvoke6(){
202	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
203
204	try{
205	Callable c = new Callable(){
206	public Object call(){
207	int i = 5/0;
208	return Boolean.TRUE;
209	}
210	};
211
212	for(int i =0; i < 5; i++){
213	Executors.invoke(p,c);
214	}
215
216	fail("should throw");
217	}catch(RejectedExecutionException e){}
218	catch(InterruptedException e2){}
219	catch(ExecutionException e3){}
220	p.shutdownNow();
221	}
222
223	public void testExecuteRunnable () {
224	try {
225	Executor e = new DirectExecutor();
226	Task task = new Task();
227
228	assertFalse("task should not be complete", task.isCompleted());
229
230	Future<String> future = Executors.execute(e, task, TEST_STRING);
231	String result = future.get();
232
233	assertTrue("task should be complete", task.isCompleted());
234	assertSame("should return test string", TEST_STRING, result);
235	}
236	catch (ExecutionException ex) {
237	fail("Unexpected exception");
238	}
239	catch (InterruptedException ex) {
240	fail("Unexpected exception");
241	}
242	}
243
244	public void testInvokeRunnable () {
245	try {
246	Executor e = new DirectExecutor();
247	Task task = new Task();
248
249	assertFalse("task should not be complete", task.isCompleted());
250
251	Executors.invoke(e, task);
252
253	assertTrue("task should be complete", task.isCompleted());
254	}
255	catch (ExecutionException ex) {
256	fail("Unexpected exception");
257	}
258	catch (InterruptedException ex) {
259	fail("Unexpected exception");
260	}
261	}
262
263	public void testExecuteCallable () {
264	try {
265	Executor e = new DirectExecutor();
266	Future<String> future = Executors.execute(e, new StringTask());
267	String result = future.get();
268
269	assertSame("should return test string", TEST_STRING, result);
270	}
271	catch (ExecutionException ex) {
272	fail("Unexpected exception");
273	}
274	catch (InterruptedException ex) {
275	fail("Unexpected exception");
276	}
277	}
278
279	public void testInvokeCallable () {
280	try {
281	Executor e = new DirectExecutor();
282	String result = Executors.invoke(e, new StringTask());
283
284	assertSame("should return test string", TEST_STRING, result);
285	}
286	catch (ExecutionException ex) {
287	fail("Unexpected exception" );
288	}
289	catch (InterruptedException ex) {
290	fail("Unexpected exception");
291	}
292	}
293
294	private static final String TEST_STRING = "a test string";
295
296	private static class Task implements Runnable {
297	public void run() { completed = true; }
298	public boolean isCompleted() { return completed; }
299	public void reset() { completed = false; }
300	private boolean completed = false;
301	}
302
303	private static class StringTask implements Callable<String> {
304	public String call() { return TEST_STRING; }
305	}
306
307	static class DirectExecutor implements Executor {
308	public void execute(Runnable r) {
309	r.run();
310	}
311	}
312
313
314	}