test/tck/ScheduledExecutorTest.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 ScheduledExecutorTest extends JSR166TestCase {
    public static void main(String[] args) {
        junit.textui.TestRunner.run (suite());  
    }
    public static Test suite() {
        return new TestSuite(ScheduledExecutorTest.class);
    }

    static class MyRunnable implements Runnable {
        volatile boolean done = false;
        public void run(){
            try{
                Thread.sleep(SMALL_DELAY_MS);
                done = true;
            } catch(Exception e){
            }
        }
    }

    static class MyCallable implements Callable {
        volatile boolean done = false;
        public Object call(){
            try{
                Thread.sleep(SMALL_DELAY_MS);
                done = true;
            }catch(Exception e){}
            return Boolean.TRUE;
        }
    }

    public void testExecute(){
        try{
            MyRunnable runnable =new MyRunnable();
            ScheduledExecutor one = new ScheduledExecutor(1);
            one.execute(runnable);
            assertFalse(runnable.done);
            Thread.sleep(SHORT_DELAY_MS);
            one.shutdown();
            try{
                Thread.sleep(MEDIUM_DELAY_MS);
            } catch(InterruptedException e){
                fail("unexpected exception");
            }
            assertTrue(runnable.done);
            one.shutdown();
            joinPool(one);
        }
        catch(Exception e){
            fail("unexpected exception");
        }
        
    }

    public void testSchedule1(){
        try{
            MyCallable callable = new MyCallable();
            ScheduledExecutor one = new ScheduledExecutor(1);
            Future f = one.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            assertFalse(callable.done);
            Thread.sleep(MEDIUM_DELAY_MS);
            assertTrue(callable.done);
            assertEquals(Boolean.TRUE, f.get());
            one.shutdown();
            joinPool(one);
        }catch(RejectedExecutionException e){}
        catch(Exception e){
            fail("unexpected exception");
        }
    }

    /**
     *  Another version of schedule, only using Runnable instead of Callable
     */
    public void testSchedule3(){
        try{
            MyRunnable runnable = new MyRunnable();
            ScheduledExecutor one = new ScheduledExecutor(1);
            one.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
            Thread.sleep(SHORT_DELAY_MS);
            assertFalse(runnable.done);
            Thread.sleep(MEDIUM_DELAY_MS);
            assertTrue(runnable.done);
            one.shutdown();
            joinPool(one);
        } catch(Exception e){
            fail("unexpected exception");
        }
    }
    
    /**
     *  The final version of schedule, using both long, TimeUnit and Runnable
     */
    public void testSchedule4(){
        try{
            MyRunnable runnable = new MyRunnable();
            ScheduledExecutor one = new ScheduledExecutor(1);
            one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            assertFalse(runnable.done);
            Thread.sleep(MEDIUM_DELAY_MS);
            assertTrue(runnable.done);
            one.shutdown();
            joinPool(one);
        } catch(Exception e){
            fail("unexpected exception");
        }
    }
    
   
    // exception tests

    /**
     *   schedule(Runnable, long) throws RejectedExecutionException
     *  This occurs on an attempt to schedule a task on a shutdown executor
     */
    public void testSchedule1_RejectedExecutionException(){
        ScheduledExecutor se = new ScheduledExecutor(1);
        try{
            se.shutdown();
            se.schedule(new NoOpRunnable(),
                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            fail("shoud throw");
        } catch(RejectedExecutionException success){
        }
        joinPool(se);

    }

    /**
     *   schedule(Callable, long, TimeUnit) throws RejectedExecutionException
     *  This occurs on an attempt to schedule a task on a shutdown executor
     */
    public void testSchedule2_RejectedExecutionException(){
        ScheduledExecutor se = new ScheduledExecutor(1);
        try{
            se.shutdown();
            se.schedule(new NoOpCallable(),
                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            fail("should throw");
        } catch(RejectedExecutionException success){
        }
        joinPool(se);
    }

    /**
     *   schedule(Callable, long) throws RejectedExecutionException
     *  This occurs on an attempt to schedule a task on a shutdown executor
     */
     public void testSchedule3_RejectedExecutionException(){
         ScheduledExecutor se = new ScheduledExecutor(1);
         try{
            se.shutdown();
            se.schedule(new NoOpCallable(),
                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            fail("should throw");
        } catch(RejectedExecutionException success){
        } 
         joinPool(se);
    }

    /**
     *   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws 
     *  RejectedExecutionException.
     *  This occurs on an attempt to schedule a task on a shutdown executor
     */
    public void testScheduleAtFixedRate1_RejectedExecutionException(){
        ScheduledExecutor se = new ScheduledExecutor(1);
        try{
            se.shutdown();
            se.scheduleAtFixedRate(new NoOpRunnable(),
                                   MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            fail("should throw");
        } catch(RejectedExecutionException success){
        } 
        joinPool(se);
    }
    
    /**
     *   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws 
     *  RejectedExecutionException.
     *  This occurs on an attempt to schedule a task on a shutdown executor
     */
    public void testScheduleAtFixedRate2_RejectedExecutionException(){
        ScheduledExecutor se = new ScheduledExecutor(1);
        try{
            se.shutdown();
            se.scheduleAtFixedRate(new NoOpRunnable(),
                                   1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            fail("should throw");
        } catch(RejectedExecutionException success){
        } 
        joinPool(se);
    }

    /**
     *   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws 
     *  RejectedExecutionException.
     *  This occurs on an attempt to schedule a task on a shutdown executor
     */
    public void testScheduleWithFixedDelay1_RejectedExecutionException(){
        ScheduledExecutor se = new ScheduledExecutor(1);
        try{
            se.shutdown();
            se.scheduleWithFixedDelay(new NoOpRunnable(),
                                      MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            fail("should throw");
        } catch(RejectedExecutionException success){
        } 
        joinPool(se);
    }

    /**
     *   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws 
     *  RejectedExecutionException.
     *  This occurs on an attempt to schedule a task on a shutdown executor
     */
     public void testScheduleWithFixedDelay2_RejectedExecutionException(){
         ScheduledExecutor se = new ScheduledExecutor(1);
        try{
            se.shutdown();
            se.scheduleWithFixedDelay(new NoOpRunnable(),
                                      1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            fail("should throw");
        } catch(RejectedExecutionException success){
        } 
        joinPool(se);
    }

    /**
     *   execute throws RejectedExecutionException
     *  This occurs on an attempt to schedule a task on a shutdown executor
     */
    public void testExecute_RejectedExecutionException(){
        ScheduledExecutor se = new ScheduledExecutor(1);
        try{
            se.shutdown();
            se.execute(new NoOpRunnable());
            fail("should throw");
        } catch(RejectedExecutionException success){
        } 
        joinPool(se);
    }

    /**
     *   getActiveCount gives correct values
     */
    public void testGetActiveCount(){
        ScheduledExecutor two = new ScheduledExecutor(2);
        assertEquals(0, two.getActiveCount());
        two.execute(new SmallRunnable());
        try{
            Thread.sleep(SHORT_DELAY_MS);
        } catch(Exception e){
            fail("unexpected exception");
        }
        assertEquals(1, two.getActiveCount());
        joinPool(two);
    }
    
    /**
     *   getCompleteTaskCount gives correct values
     */
    public void testGetCompletedTaskCount(){
        ScheduledExecutor two = new ScheduledExecutor(2);
        assertEquals(0, two.getCompletedTaskCount());
        two.execute(new SmallRunnable());
        try{
            Thread.sleep(MEDIUM_DELAY_MS);
        } catch(Exception e){
            fail("unexpected exception");
        }
        assertEquals(1, two.getCompletedTaskCount());
        joinPool(two);
    }
    
    /**
     *   getCorePoolSize gives correct values
     */
    public void testGetCorePoolSize(){
        ScheduledExecutor one = new ScheduledExecutor(1);
        assertEquals(1, one.getCorePoolSize());
        joinPool(one);
    }
    
    /**
     *   getLargestPoolSize gives correct values
     */
    public void testGetLargestPoolSize(){
        ScheduledExecutor two = new ScheduledExecutor(2);
        assertEquals(0, two.getLargestPoolSize());
        two.execute(new SmallRunnable());
        two.execute(new SmallRunnable());
        try{
            Thread.sleep(SHORT_DELAY_MS);
        } catch(Exception e){
            fail("unexpected exception");
        }
        assertEquals(2, two.getLargestPoolSize());
        joinPool(two);
    }
    
    /**
     *   getPoolSize gives correct values
     */
    public void testGetPoolSize(){
        ScheduledExecutor one = new ScheduledExecutor(1);
        assertEquals(0, one.getPoolSize());
        one.execute(new SmallRunnable());
        assertEquals(1, one.getPoolSize());
        joinPool(one);
    }
    
    /**
     *   getTaskCount gives correct values
     */
    public void testGetTaskCount(){
        ScheduledExecutor one = new ScheduledExecutor(1);
        assertEquals(0, one.getTaskCount());
        for(int i = 0; i < 5; i++)
            one.execute(new SmallRunnable());
        try{
            Thread.sleep(SHORT_DELAY_MS);
        } catch(Exception e){
            fail("unexpected exception");
        }
        assertEquals(5, one.getTaskCount());
        joinPool(one);
    }
    
    /**
     *   isShutDown gives correct values
     */
    public void testIsShutdown(){
        
        ScheduledExecutor one = new ScheduledExecutor(1);
        try {
            assertFalse(one.isShutdown());
        }
        finally {
            one.shutdown();
        }
        assertTrue(one.isShutdown());
    }

        
    /**
     *   isTerminated gives correct values
     *  Makes sure termination does not take an innapropriate
     *  amount of time
     */
    public void testIsTerminated(){
        ScheduledExecutor one = new ScheduledExecutor(1);
        try {
            one.execute(new SmallRunnable());
        } finally {
            one.shutdown();
        }
        try {
            assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
            assertTrue(one.isTerminated());
        } catch(Exception e){
            fail("unexpected exception");
        }       
    }

    /**
     *   that purge correctly removes cancelled tasks
     *  from the queue
     */
    public void testPurge(){
        ScheduledExecutor one = new ScheduledExecutor(1);
        ScheduledCancellable[] tasks = new ScheduledCancellable[5];
        for(int i = 0; i < 5; i++){
            tasks[i] = one.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
        }
        int max = 5;
        if (tasks[4].cancel(true)) --max;
        if (tasks[3].cancel(true)) --max;
        one.purge();
        long count = one.getTaskCount();
        assertTrue(count > 0 && count <= max);
        joinPool(one);
    }

    /**
     *   shutDownNow returns a list
     *  containing the correct number of elements
     */
    public void testShutDownNow(){
        ScheduledExecutor one = new ScheduledExecutor(1);
        for(int i = 0; i < 5; i++)
            one.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
        List l = one.shutdownNow();
        assertTrue(one.isShutdown());
        assertTrue(l.size() > 0 && l.size() <= 5);
        joinPool(one);
    }

    public void testShutDown1(){
        try {
            ScheduledExecutor one = new ScheduledExecutor(1);
            assertTrue(one.getExecuteExistingDelayedTasksAfterShutdownPolicy());
            assertFalse(one.getContinueExistingPeriodicTasksAfterShutdownPolicy());

            ScheduledCancellable[] tasks = new ScheduledCancellable[5];
            for(int i = 0; i < 5; i++)
                tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            one.shutdown();
            BlockingQueue q = one.getQueue();
            for (Iterator it = q.iterator(); it.hasNext();) {
                ScheduledCancellable t = (ScheduledCancellable)it.next();
                assertFalse(t.isCancelled());
            }
            assertTrue(one.isShutdown());
            Thread.sleep(SMALL_DELAY_MS);
            for (int i = 0; i < 5; ++i) {
                assertTrue(tasks[i].isDone());
                assertFalse(tasks[i].isCancelled());
            }
            
        }
        catch(Exception ex) {
            fail("unexpected exception");
        }
    }


    public void testShutDown2(){
        try {
            ScheduledExecutor one = new ScheduledExecutor(1);
            one.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
            ScheduledCancellable[] tasks = new ScheduledCancellable[5];
            for(int i = 0; i < 5; i++)
                tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            one.shutdown();
            assertTrue(one.isShutdown());
            BlockingQueue q = one.getQueue();
            assertTrue(q.isEmpty());
            Thread.sleep(SMALL_DELAY_MS);
            assertTrue(one.isTerminated());
        }
        catch(Exception ex) {
            fail("unexpected exception");
        }
    }


    public void testShutDown3(){
        try {
            ScheduledExecutor one = new ScheduledExecutor(1);
            one.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
            ScheduledCancellable task =
                one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
            one.shutdown();
            assertTrue(one.isShutdown());
            BlockingQueue q = one.getQueue();
            assertTrue(q.isEmpty());
            Thread.sleep(SHORT_DELAY_MS);
            assertTrue(one.isTerminated());
        }
        catch(Exception ex) {
            fail("unexpected exception");
        }
    }

    public void testShutDown4(){
        ScheduledExecutor one = new ScheduledExecutor(1);
        try {
            one.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
            ScheduledCancellable task =
                one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
            assertFalse(task.isCancelled());
            one.shutdown();
            assertFalse(task.isCancelled());
            assertFalse(one.isTerminated());
            assertTrue(one.isShutdown());
            Thread.sleep(SHORT_DELAY_MS);
            assertFalse(task.isCancelled());
            task.cancel(true);
            assertTrue(task.isCancelled());
            Thread.sleep(SHORT_DELAY_MS);
            assertTrue(one.isTerminated());
        }
        catch(Exception ex) {
            fail("unexpected exception");
        }
        finally {
            one.shutdownNow();
        }
    }

}
Revision:	1.4
Committed:	Sun Sep 14 20:42:40 2003 UTC (20 years, 7 months ago) by dl
Branch:	MAIN
Changes since 1.3:	+144 -200 lines
Log Message:	New base class JSR166TestCase
#	User	Rev	Content
1	dl	1.1	/*
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			import junit.framework.*;
9			import java.util.*;
10			import java.util.concurrent.*;
11
12	dl	1.4	public class ScheduledExecutorTest extends JSR166TestCase {
13	dl	1.1	public static void main(String[] args) {
14			junit.textui.TestRunner.run (suite());
15			}
16			public static Test suite() {
17			return new TestSuite(ScheduledExecutorTest.class);
18			}
19
20			static class MyRunnable implements Runnable {
21			volatile boolean done = false;
22			public void run(){
23			try{
24	dl	1.4	Thread.sleep(SMALL_DELAY_MS);
25	dl	1.1	done = true;
26	dl	1.2	} catch(Exception e){
27			}
28	dl	1.1	}
29			}
30
31			static class MyCallable implements Callable {
32			volatile boolean done = false;
33			public Object call(){
34			try{
35	dl	1.4	Thread.sleep(SMALL_DELAY_MS);
36	dl	1.1	done = true;
37			}catch(Exception e){}
38			return Boolean.TRUE;
39			}
40			}
41
42			public void testExecute(){
43			try{
44			MyRunnable runnable =new MyRunnable();
45			ScheduledExecutor one = new ScheduledExecutor(1);
46			one.execute(runnable);
47	dl	1.4	assertFalse(runnable.done);
48			Thread.sleep(SHORT_DELAY_MS);
49	dl	1.1	one.shutdown();
50	dl	1.2	try{
51			Thread.sleep(MEDIUM_DELAY_MS);
52			} catch(InterruptedException e){
53			fail("unexpected exception");
54			}
55	dl	1.1	assertTrue(runnable.done);
56			one.shutdown();
57	dl	1.4	joinPool(one);
58	dl	1.1	}
59			catch(Exception e){
60			fail("unexpected exception");
61			}
62	dl	1.4
63	dl	1.1	}
64
65			public void testSchedule1(){
66			try{
67			MyCallable callable = new MyCallable();
68			ScheduledExecutor one = new ScheduledExecutor(1);
69	dl	1.2	Future f = one.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
70	dl	1.4	assertFalse(callable.done);
71	dl	1.2	Thread.sleep(MEDIUM_DELAY_MS);
72	dl	1.1	assertTrue(callable.done);
73			assertEquals(Boolean.TRUE, f.get());
74			one.shutdown();
75	dl	1.4	joinPool(one);
76	dl	1.1	}catch(RejectedExecutionException e){}
77	dl	1.2	catch(Exception e){
78			fail("unexpected exception");
79			}
80	dl	1.1	}
81
82			/**
83			* Another version of schedule, only using Runnable instead of Callable
84			*/
85			public void testSchedule3(){
86			try{
87			MyRunnable runnable = new MyRunnable();
88			ScheduledExecutor one = new ScheduledExecutor(1);
89	dl	1.4	one.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
90			Thread.sleep(SHORT_DELAY_MS);
91			assertFalse(runnable.done);
92	dl	1.2	Thread.sleep(MEDIUM_DELAY_MS);
93	dl	1.1	assertTrue(runnable.done);
94			one.shutdown();
95	dl	1.4	joinPool(one);
96	dl	1.1	} catch(Exception e){
97			fail("unexpected exception");
98			}
99			}
100
101			/**
102			* The final version of schedule, using both long, TimeUnit and Runnable
103			*/
104			public void testSchedule4(){
105			try{
106			MyRunnable runnable = new MyRunnable();
107			ScheduledExecutor one = new ScheduledExecutor(1);
108	dl	1.2	one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
109	dl	1.4	assertFalse(runnable.done);
110	dl	1.2	Thread.sleep(MEDIUM_DELAY_MS);
111	dl	1.1	assertTrue(runnable.done);
112			one.shutdown();
113	dl	1.4	joinPool(one);
114	dl	1.1	} catch(Exception e){
115			fail("unexpected exception");
116			}
117			}
118
119
120			// exception tests
121
122			/**
123	dl	1.4	* schedule(Runnable, long) throws RejectedExecutionException
124	dl	1.1	* This occurs on an attempt to schedule a task on a shutdown executor
125			*/
126			public void testSchedule1_RejectedExecutionException(){
127	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
128	dl	1.1	try{
129			se.shutdown();
130	dl	1.4	se.schedule(new NoOpRunnable(),
131			MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
132	dl	1.1	fail("shoud throw");
133	dl	1.4	} catch(RejectedExecutionException success){
134			}
135			joinPool(se);
136
137	dl	1.1	}
138
139			/**
140	dl	1.4	* schedule(Callable, long, TimeUnit) throws RejectedExecutionException
141	dl	1.1	* This occurs on an attempt to schedule a task on a shutdown executor
142			*/
143			public void testSchedule2_RejectedExecutionException(){
144	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
145	dl	1.1	try{
146			se.shutdown();
147	dl	1.4	se.schedule(new NoOpCallable(),
148			MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
149	dl	1.1	fail("should throw");
150	dl	1.4	} catch(RejectedExecutionException success){
151			}
152			joinPool(se);
153	dl	1.1	}
154
155			/**
156	dl	1.4	* schedule(Callable, long) throws RejectedExecutionException
157	dl	1.1	* This occurs on an attempt to schedule a task on a shutdown executor
158			*/
159			public void testSchedule3_RejectedExecutionException(){
160	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
161			try{
162	dl	1.1	se.shutdown();
163	dl	1.4	se.schedule(new NoOpCallable(),
164			MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
165	dl	1.1	fail("should throw");
166	dl	1.4	} catch(RejectedExecutionException success){
167			}
168			joinPool(se);
169	dl	1.1	}
170
171			/**
172	dl	1.4	* scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
173	dl	1.1	* RejectedExecutionException.
174			* This occurs on an attempt to schedule a task on a shutdown executor
175			*/
176			public void testScheduleAtFixedRate1_RejectedExecutionException(){
177	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
178	dl	1.1	try{
179			se.shutdown();
180	dl	1.4	se.scheduleAtFixedRate(new NoOpRunnable(),
181			MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
182	dl	1.1	fail("should throw");
183	dl	1.4	} catch(RejectedExecutionException success){
184			}
185			joinPool(se);
186	dl	1.1	}
187
188			/**
189	dl	1.4	* scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
190	dl	1.1	* RejectedExecutionException.
191			* This occurs on an attempt to schedule a task on a shutdown executor
192			*/
193			public void testScheduleAtFixedRate2_RejectedExecutionException(){
194	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
195	dl	1.1	try{
196			se.shutdown();
197	dl	1.4	se.scheduleAtFixedRate(new NoOpRunnable(),
198			1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
199	dl	1.1	fail("should throw");
200	dl	1.4	} catch(RejectedExecutionException success){
201			}
202			joinPool(se);
203	dl	1.1	}
204
205			/**
206	dl	1.4	* scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
207	dl	1.1	* RejectedExecutionException.
208			* This occurs on an attempt to schedule a task on a shutdown executor
209			*/
210			public void testScheduleWithFixedDelay1_RejectedExecutionException(){
211	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
212	dl	1.1	try{
213			se.shutdown();
214	dl	1.4	se.scheduleWithFixedDelay(new NoOpRunnable(),
215			MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
216	dl	1.1	fail("should throw");
217	dl	1.4	} catch(RejectedExecutionException success){
218			}
219			joinPool(se);
220	dl	1.1	}
221
222			/**
223	dl	1.4	* scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
224	dl	1.1	* RejectedExecutionException.
225			* This occurs on an attempt to schedule a task on a shutdown executor
226			*/
227			public void testScheduleWithFixedDelay2_RejectedExecutionException(){
228	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
229	dl	1.1	try{
230			se.shutdown();
231	dl	1.4	se.scheduleWithFixedDelay(new NoOpRunnable(),
232			1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
233	dl	1.1	fail("should throw");
234	dl	1.4	} catch(RejectedExecutionException success){
235			}
236			joinPool(se);
237	dl	1.1	}
238
239			/**
240	dl	1.4	* execute throws RejectedExecutionException
241	dl	1.1	* This occurs on an attempt to schedule a task on a shutdown executor
242			*/
243			public void testExecute_RejectedExecutionException(){
244	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
245	dl	1.1	try{
246			se.shutdown();
247	dl	1.4	se.execute(new NoOpRunnable());
248	dl	1.1	fail("should throw");
249	dl	1.4	} catch(RejectedExecutionException success){
250			}
251			joinPool(se);
252	dl	1.2	}
253
254			/**
255	dl	1.4	* getActiveCount gives correct values
256	dl	1.2	*/
257			public void testGetActiveCount(){
258			ScheduledExecutor two = new ScheduledExecutor(2);
259	dl	1.4	assertEquals(0, two.getActiveCount());
260			two.execute(new SmallRunnable());
261			try{
262			Thread.sleep(SHORT_DELAY_MS);
263			} catch(Exception e){
264			fail("unexpected exception");
265	dl	1.2	}
266	dl	1.4	assertEquals(1, two.getActiveCount());
267			joinPool(two);
268	dl	1.2	}
269
270			/**
271	dl	1.4	* getCompleteTaskCount gives correct values
272	dl	1.2	*/
273			public void testGetCompletedTaskCount(){
274			ScheduledExecutor two = new ScheduledExecutor(2);
275	dl	1.4	assertEquals(0, two.getCompletedTaskCount());
276			two.execute(new SmallRunnable());
277			try{
278			Thread.sleep(MEDIUM_DELAY_MS);
279			} catch(Exception e){
280			fail("unexpected exception");
281	dl	1.2	}
282	dl	1.4	assertEquals(1, two.getCompletedTaskCount());
283			joinPool(two);
284	dl	1.2	}
285
286			/**
287	dl	1.4	* getCorePoolSize gives correct values
288	dl	1.2	*/
289			public void testGetCorePoolSize(){
290			ScheduledExecutor one = new ScheduledExecutor(1);
291	dl	1.4	assertEquals(1, one.getCorePoolSize());
292			joinPool(one);
293	dl	1.2	}
294
295			/**
296	dl	1.4	* getLargestPoolSize gives correct values
297	dl	1.2	*/
298			public void testGetLargestPoolSize(){
299			ScheduledExecutor two = new ScheduledExecutor(2);
300	dl	1.4	assertEquals(0, two.getLargestPoolSize());
301			two.execute(new SmallRunnable());
302			two.execute(new SmallRunnable());
303			try{
304			Thread.sleep(SHORT_DELAY_MS);
305			} catch(Exception e){
306			fail("unexpected exception");
307	dl	1.2	}
308	dl	1.4	assertEquals(2, two.getLargestPoolSize());
309			joinPool(two);
310	dl	1.2	}
311
312			/**
313	dl	1.4	* getPoolSize gives correct values
314	dl	1.2	*/
315			public void testGetPoolSize(){
316			ScheduledExecutor one = new ScheduledExecutor(1);
317	dl	1.4	assertEquals(0, one.getPoolSize());
318			one.execute(new SmallRunnable());
319			assertEquals(1, one.getPoolSize());
320			joinPool(one);
321	dl	1.2	}
322
323			/**
324	dl	1.4	* getTaskCount gives correct values
325	dl	1.2	*/
326			public void testGetTaskCount(){
327			ScheduledExecutor one = new ScheduledExecutor(1);
328	dl	1.4	assertEquals(0, one.getTaskCount());
329			for(int i = 0; i < 5; i++)
330			one.execute(new SmallRunnable());
331			try{
332			Thread.sleep(SHORT_DELAY_MS);
333			} catch(Exception e){
334			fail("unexpected exception");
335	dl	1.2	}
336	dl	1.4	assertEquals(5, one.getTaskCount());
337			joinPool(one);
338	dl	1.2	}
339
340			/**
341	dl	1.4	* isShutDown gives correct values
342	dl	1.2	*/
343			public void testIsShutdown(){
344
345			ScheduledExecutor one = new ScheduledExecutor(1);
346			try {
347			assertFalse(one.isShutdown());
348			}
349			finally {
350			one.shutdown();
351			}
352			assertTrue(one.isShutdown());
353			}
354
355
356			/**
357	dl	1.4	* isTerminated gives correct values
358	dl	1.2	* Makes sure termination does not take an innapropriate
359			* amount of time
360			*/
361			public void testIsTerminated(){
362			ScheduledExecutor one = new ScheduledExecutor(1);
363			try {
364	dl	1.4	one.execute(new SmallRunnable());
365	dl	1.2	} finally {
366			one.shutdown();
367			}
368	dl	1.4	try {
369			assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
370			assertTrue(one.isTerminated());
371	dl	1.2	} catch(Exception e){
372			fail("unexpected exception");
373			}
374			}
375
376			/**
377	dl	1.4	* that purge correctly removes cancelled tasks
378	dl	1.2	* from the queue
379			*/
380			public void testPurge(){
381			ScheduledExecutor one = new ScheduledExecutor(1);
382	dl	1.4	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
383			for(int i = 0; i < 5; i++){
384			tasks[i] = one.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
385	dl	1.2	}
386	dl	1.4	int max = 5;
387			if (tasks[4].cancel(true)) --max;
388			if (tasks[3].cancel(true)) --max;
389			one.purge();
390			long count = one.getTaskCount();
391			assertTrue(count > 0 && count <= max);
392			joinPool(one);
393	dl	1.2	}
394
395			/**
396	dl	1.4	* shutDownNow returns a list
397	dl	1.2	* containing the correct number of elements
398			*/
399			public void testShutDownNow(){
400			ScheduledExecutor one = new ScheduledExecutor(1);
401			for(int i = 0; i < 5; i++)
402	dl	1.4	one.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
403	dl	1.2	List l = one.shutdownNow();
404			assertTrue(one.isShutdown());
405			assertTrue(l.size() > 0 && l.size() <= 5);
406	dl	1.4	joinPool(one);
407	dl	1.2	}
408
409			public void testShutDown1(){
410			try {
411			ScheduledExecutor one = new ScheduledExecutor(1);
412			assertTrue(one.getExecuteExistingDelayedTasksAfterShutdownPolicy());
413			assertFalse(one.getContinueExistingPeriodicTasksAfterShutdownPolicy());
414
415			ScheduledCancellable[] tasks = new ScheduledCancellable[5];
416			for(int i = 0; i < 5; i++)
417	dl	1.4	tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
418	dl	1.2	one.shutdown();
419			BlockingQueue q = one.getQueue();
420			for (Iterator it = q.iterator(); it.hasNext();) {
421			ScheduledCancellable t = (ScheduledCancellable)it.next();
422			assertFalse(t.isCancelled());
423			}
424			assertTrue(one.isShutdown());
425	dl	1.4	Thread.sleep(SMALL_DELAY_MS);
426	dl	1.2	for (int i = 0; i < 5; ++i) {
427			assertTrue(tasks[i].isDone());
428			assertFalse(tasks[i].isCancelled());
429			}
430
431			}
432			catch(Exception ex) {
433			fail("unexpected exception");
434			}
435			}
436
437
438			public void testShutDown2(){
439			try {
440			ScheduledExecutor one = new ScheduledExecutor(1);
441			one.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
442			ScheduledCancellable[] tasks = new ScheduledCancellable[5];
443			for(int i = 0; i < 5; i++)
444	dl	1.4	tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
445	dl	1.2	one.shutdown();
446			assertTrue(one.isShutdown());
447			BlockingQueue q = one.getQueue();
448			assertTrue(q.isEmpty());
449	dl	1.4	Thread.sleep(SMALL_DELAY_MS);
450	dl	1.2	assertTrue(one.isTerminated());
451			}
452			catch(Exception ex) {
453			fail("unexpected exception");
454			}
455			}
456
457
458			public void testShutDown3(){
459			try {
460			ScheduledExecutor one = new ScheduledExecutor(1);
461			one.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
462			ScheduledCancellable task =
463	dl	1.4	one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
464	dl	1.2	one.shutdown();
465			assertTrue(one.isShutdown());
466			BlockingQueue q = one.getQueue();
467			assertTrue(q.isEmpty());
468			Thread.sleep(SHORT_DELAY_MS);
469			assertTrue(one.isTerminated());
470			}
471			catch(Exception ex) {
472			fail("unexpected exception");
473			}
474			}
475
476			public void testShutDown4(){
477			ScheduledExecutor one = new ScheduledExecutor(1);
478			try {
479			one.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
480			ScheduledCancellable task =
481	dl	1.4	one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
482	dl	1.2	assertFalse(task.isCancelled());
483			one.shutdown();
484			assertFalse(task.isCancelled());
485			assertFalse(one.isTerminated());
486			assertTrue(one.isShutdown());
487			Thread.sleep(SHORT_DELAY_MS);
488			assertFalse(task.isCancelled());
489			task.cancel(true);
490			assertTrue(task.isCancelled());
491			Thread.sleep(SHORT_DELAY_MS);
492			assertTrue(one.isTerminated());
493			}
494			catch(Exception ex) {
495			fail("unexpected exception");
496			}
497			finally {
498			one.shutdownNow();
499			}
500	dl	1.1	}
501
502			}