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);
    }


    /**
     * execute successfully executes a runnable
     */
    public void testExecute() {
        try {
            TrackedRunnable runnable =new TrackedRunnable();
            ScheduledExecutor p1 = new ScheduledExecutor(1);
            p1.execute(runnable);
            assertFalse(runnable.done);
            Thread.sleep(SHORT_DELAY_MS);
            p1.shutdown();
            try {
                Thread.sleep(MEDIUM_DELAY_MS);
            } catch(InterruptedException e){
                unexpectedException();
            }
            assertTrue(runnable.done);
            p1.shutdown();
            joinPool(p1);
        }
        catch(Exception e){
            unexpectedException();
        }
        
    }


    /**
     * delayed schedule of callable successfully executes after delay
     */
    public void testSchedule1() {
        try {
            TrackedCallable callable = new TrackedCallable();
            ScheduledExecutor p1 = new ScheduledExecutor(1);
            Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            assertFalse(callable.done);
            Thread.sleep(MEDIUM_DELAY_MS);
            assertTrue(callable.done);
            assertEquals(Boolean.TRUE, f.get());
            p1.shutdown();
            joinPool(p1);
        } catch(RejectedExecutionException e){}
        catch(Exception e){
            unexpectedException();
        }
    }

    /**
     *  delayed schedule of runnable successfully executes after delay
     */
    public void testSchedule3() {
        try {
            TrackedRunnable runnable = new TrackedRunnable();
            ScheduledExecutor p1 = new ScheduledExecutor(1);
            p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
            Thread.sleep(SHORT_DELAY_MS);
            assertFalse(runnable.done);
            Thread.sleep(MEDIUM_DELAY_MS);
            assertTrue(runnable.done);
            p1.shutdown();
            joinPool(p1);
        } catch(Exception e){
            unexpectedException();
        }
    }
    
    /**
     * scheduleAtFixedRate executes runnable after given initial delay
     */
    public void testSchedule4() {
        try {
            TrackedRunnable runnable = new TrackedRunnable();
            ScheduledExecutor p1 = new ScheduledExecutor(1);
            ScheduledCancellable h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            assertFalse(runnable.done);
            Thread.sleep(MEDIUM_DELAY_MS);
            assertTrue(runnable.done);
            h.cancel(true);
            p1.shutdown();
            joinPool(p1);
        } catch(Exception e){
            unexpectedException();
        }
    }

    /**
     * scheduleWithFixedDelay executes runnable after given initial delay
     */
    public void testSchedule5() {
        try {
            TrackedRunnable runnable = new TrackedRunnable();
            ScheduledExecutor p1 = new ScheduledExecutor(1);
            ScheduledCancellable h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            assertFalse(runnable.done);
            Thread.sleep(MEDIUM_DELAY_MS);
            assertTrue(runnable.done);
            h.cancel(true);
            p1.shutdown();
            joinPool(p1);
        } catch(Exception e){
            unexpectedException();
        }
    }
    
    /**
     *  execute (null) throws NPE
     */
    public void testExecuteNull() {
        ScheduledExecutor se = null;
        try {
            se = new ScheduledExecutor(1);
            se.execute(null);
            shouldThrow();
        } catch(NullPointerException success){}
        catch(Exception e){
            unexpectedException();
        }
        
        joinPool(se);
    }

    /**
     * schedule (null) throws NPE
     */
    public void testScheduleNull() {
        ScheduledExecutor se = new ScheduledExecutor(1);
        try {
            TrackedCallable callable = null;
            Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            shouldThrow();
        } catch(NullPointerException success){}
        catch(Exception e){
            unexpectedException();
        }
        joinPool(se);
    }
   
    /**
     * execute throws RejectedExecutionException if shutdown
     */
    public void testSchedule1_RejectedExecutionException() {
        ScheduledExecutor se = new ScheduledExecutor(1);
        try {
            se.shutdown();
            se.schedule(new NoOpRunnable(),
                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            shouldThrow();
        } catch(RejectedExecutionException success){
        }
        joinPool(se);

    }

    /**
     * schedule throws RejectedExecutionException if shutdown
     */
    public void testSchedule2_RejectedExecutionException() {
        ScheduledExecutor se = new ScheduledExecutor(1);
        try {
            se.shutdown();
            se.schedule(new NoOpCallable(),
                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            shouldThrow();
        } catch(RejectedExecutionException success){
        }
        joinPool(se);
    }

    /**
     * schedule callable throws RejectedExecutionException if shutdown
     */
     public void testSchedule3_RejectedExecutionException() {
         ScheduledExecutor se = new ScheduledExecutor(1);
         try {
            se.shutdown();
            se.schedule(new NoOpCallable(),
                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            shouldThrow();
        } catch(RejectedExecutionException success){
        } 
         joinPool(se);
    }

    /**
     *  scheduleAtFixedRate throws RejectedExecutionException if shutdown
     */
    public void testScheduleAtFixedRate1_RejectedExecutionException() {
        ScheduledExecutor se = new ScheduledExecutor(1);
        try {
            se.shutdown();
            se.scheduleAtFixedRate(new NoOpRunnable(),
                                   MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            shouldThrow();
        } catch(RejectedExecutionException success){
        } 
        joinPool(se);
    }
    
    /**
     * scheduleWithFixedDelay throws RejectedExecutionException if shutdown
     */
    public void testScheduleWithFixedDelay1_RejectedExecutionException() {
        ScheduledExecutor se = new ScheduledExecutor(1);
        try {
            se.shutdown();
            se.scheduleWithFixedDelay(new NoOpRunnable(),
                                      MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
            shouldThrow();
        } catch(RejectedExecutionException success){
        } 
        joinPool(se);
    }

    /**
     *  getActiveCount increases but doesn't overestimate, when a
     *  thread becomes active
     */
    public void testGetActiveCount() {
        ScheduledExecutor p2 = new ScheduledExecutor(2);
        assertEquals(0, p2.getActiveCount());
        p2.execute(new SmallRunnable());
        try {
            Thread.sleep(SHORT_DELAY_MS);
        } catch(Exception e){
            unexpectedException();
        }
        assertEquals(1, p2.getActiveCount());
        joinPool(p2);
    }
    
    /**
     *    getCompletedTaskCount increases, but doesn't overestimate,
     *   when tasks complete
     */
    public void testGetCompletedTaskCount() {
        ScheduledExecutor p2 = new ScheduledExecutor(2);
        assertEquals(0, p2.getCompletedTaskCount());
        p2.execute(new SmallRunnable());
        try {
            Thread.sleep(MEDIUM_DELAY_MS);
        } catch(Exception e){
            unexpectedException();
        }
        assertEquals(1, p2.getCompletedTaskCount());
        joinPool(p2);
    }
    
    /**
     *  getCorePoolSize returns size given in constructor if not otherwise set 
     */
    public void testGetCorePoolSize() {
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        assertEquals(1, p1.getCorePoolSize());
        joinPool(p1);
    }
    
    /**
     *    getLargestPoolSize increases, but doesn't overestimate, when
     *   multiple threads active
     */
    public void testGetLargestPoolSize() {
        ScheduledExecutor p2 = new ScheduledExecutor(2);
        assertEquals(0, p2.getLargestPoolSize());
        p2.execute(new SmallRunnable());
        p2.execute(new SmallRunnable());
        try {
            Thread.sleep(SHORT_DELAY_MS);
        } catch(Exception e){
            unexpectedException();
        }
        assertEquals(2, p2.getLargestPoolSize());
        joinPool(p2);
    }
    
    /**
     *   getPoolSize increases, but doesn't overestimate, when threads
     *   become active
     */
    public void testGetPoolSize() {
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        assertEquals(0, p1.getPoolSize());
        p1.execute(new SmallRunnable());
        assertEquals(1, p1.getPoolSize());
        joinPool(p1);
    }
    
    /**
     *    getTaskCount increases, but doesn't overestimate, when tasks
     *    submitted
     */
    public void testGetTaskCount() {
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        assertEquals(0, p1.getTaskCount());
        for(int i = 0; i < 5; i++)
            p1.execute(new SmallRunnable());
        try {
            Thread.sleep(SHORT_DELAY_MS);
        } catch(Exception e){
            unexpectedException();
        }
        assertEquals(5, p1.getTaskCount());
        joinPool(p1);
    }
    
    /**
     *   is isShutDown is false before shutdown, true after
     */
    public void testIsShutdown() {
        
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        try {
            assertFalse(p1.isShutdown());
        }
        finally {
            p1.shutdown();
        }
        assertTrue(p1.isShutdown());
    }

        
    /**
     *   isTerminated is false before termination, true after
     */
    public void testIsTerminated() {
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        try {
            p1.execute(new SmallRunnable());
        } finally {
            p1.shutdown();
        }
        try {
            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
            assertTrue(p1.isTerminated());
        } catch(Exception e){
            unexpectedException();
        }       
    }

    /**
     *  isTerminating is not true when running or when terminated
     */
    public void testIsTerminating() {
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        assertFalse(p1.isTerminating());
        try {
            p1.execute(new SmallRunnable());
            assertFalse(p1.isTerminating());
        } finally {
            p1.shutdown();
        }
        try {
            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
            assertTrue(p1.isTerminated());
            assertFalse(p1.isTerminating());
        } catch(Exception e){
            unexpectedException();
        }       
    }

    /**
     *   purge removes cancelled tasks from the queue
     */
    public void testPurge() {
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        ScheduledCancellable[] tasks = new ScheduledCancellable[5];
        for(int i = 0; i < 5; i++){
            tasks[i] = p1.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
        }
        int max = 5;
        if (tasks[4].cancel(true)) --max;
        if (tasks[3].cancel(true)) --max;
        p1.purge();
        long count = p1.getTaskCount();
        assertTrue(count > 0 && count <= max);
        joinPool(p1);
    }

    /**
     *  shutDownNow returns a list containing tasks that were not run
     */
    public void testShutDownNow() {
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        for(int i = 0; i < 5; i++)
            p1.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
        List l = p1.shutdownNow();
        assertTrue(p1.isShutdown());
        assertTrue(l.size() > 0 && l.size() <= 5);
        joinPool(p1);
    }

    /**
     * In default setting, shutdown cancels periodic but not delayed
     * tasks at shutdown
     */
    public void testShutDown1() {
        try {
            ScheduledExecutor p1 = new ScheduledExecutor(1);
            assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
            assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());

            ScheduledCancellable[] tasks = new ScheduledCancellable[5];
            for(int i = 0; i < 5; i++)
                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            p1.shutdown();
            BlockingQueue q = p1.getQueue();
            for (Iterator it = q.iterator(); it.hasNext();) {
                ScheduledCancellable t = (ScheduledCancellable)it.next();
                assertFalse(t.isCancelled());
            }
            assertTrue(p1.isShutdown());
            Thread.sleep(SMALL_DELAY_MS);
            for (int i = 0; i < 5; ++i) {
                assertTrue(tasks[i].isDone());
                assertFalse(tasks[i].isCancelled());
            }
            
        }
        catch(Exception ex) {
            unexpectedException();
        }
    }


    /**
     * If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
     * delayed tasks are cancelled at shutdown
     */
    public void testShutDown2() {
        try {
            ScheduledExecutor p1 = new ScheduledExecutor(1);
            p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
            ScheduledCancellable[] tasks = new ScheduledCancellable[5];
            for(int i = 0; i < 5; i++)
                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            p1.shutdown();
            assertTrue(p1.isShutdown());
            BlockingQueue q = p1.getQueue();
            assertTrue(q.isEmpty());
            Thread.sleep(SMALL_DELAY_MS);
            assertTrue(p1.isTerminated());
        }
        catch(Exception ex) {
            unexpectedException();
        }
    }


    /**
     * If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
     * periodic tasks are not cancelled at shutdown
     */
    public void testShutDown3() {
        try {
            ScheduledExecutor p1 = new ScheduledExecutor(1);
            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
            ScheduledCancellable task =
                p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
            p1.shutdown();
            assertTrue(p1.isShutdown());
            BlockingQueue q = p1.getQueue();
            assertTrue(q.isEmpty());
            Thread.sleep(SHORT_DELAY_MS);
            assertTrue(p1.isTerminated());
        }
        catch(Exception ex) {
            unexpectedException();
        }
    }

    /**
     * if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
     * periodic tasks are cancelled at shutdown
     */
    public void testShutDown4() {
        ScheduledExecutor p1 = new ScheduledExecutor(1);
        try {
            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
            ScheduledCancellable task =
                p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
            assertFalse(task.isCancelled());
            p1.shutdown();
            assertFalse(task.isCancelled());
            assertFalse(p1.isTerminated());
            assertTrue(p1.isShutdown());
            Thread.sleep(SHORT_DELAY_MS);
            assertFalse(task.isCancelled());
            task.cancel(true);
            assertTrue(task.isCancelled());
            Thread.sleep(SHORT_DELAY_MS);
            assertTrue(p1.isTerminated());
        }
        catch(Exception ex) {
            unexpectedException();
        }
        finally {
            p1.shutdownNow();
        }
    }

}
Revision:	1.7
Committed:	Fri Sep 26 15:33:13 2003 UTC (20 years, 7 months ago) by dl
Branch:	MAIN
Changes since 1.6:	+6 -28 lines
Log Message:	Javadoc fixes
#	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
21	dl	1.5	/**
22	dl	1.6	* execute successfully executes a runnable
23	dl	1.5	*/
24			public void testExecute() {
25			try {
26	dl	1.7	TrackedRunnable runnable =new TrackedRunnable();
27	dl	1.5	ScheduledExecutor p1 = new ScheduledExecutor(1);
28			p1.execute(runnable);
29	dl	1.4	assertFalse(runnable.done);
30			Thread.sleep(SHORT_DELAY_MS);
31	dl	1.5	p1.shutdown();
32			try {
33	dl	1.2	Thread.sleep(MEDIUM_DELAY_MS);
34			} catch(InterruptedException e){
35	dl	1.5	unexpectedException();
36	dl	1.2	}
37	dl	1.1	assertTrue(runnable.done);
38	dl	1.5	p1.shutdown();
39			joinPool(p1);
40	dl	1.1	}
41			catch(Exception e){
42	dl	1.5	unexpectedException();
43	dl	1.1	}
44	dl	1.4
45	dl	1.1	}
46
47	dl	1.6
48	dl	1.5	/**
49	dl	1.6	* delayed schedule of callable successfully executes after delay
50	dl	1.5	*/
51			public void testSchedule1() {
52			try {
53	dl	1.7	TrackedCallable callable = new TrackedCallable();
54	dl	1.5	ScheduledExecutor p1 = new ScheduledExecutor(1);
55			Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
56	dl	1.4	assertFalse(callable.done);
57	dl	1.2	Thread.sleep(MEDIUM_DELAY_MS);
58	dl	1.1	assertTrue(callable.done);
59			assertEquals(Boolean.TRUE, f.get());
60	dl	1.5	p1.shutdown();
61			joinPool(p1);
62			} catch(RejectedExecutionException e){}
63	dl	1.2	catch(Exception e){
64	dl	1.5	unexpectedException();
65	dl	1.2	}
66	dl	1.1	}
67
68			/**
69	dl	1.6	* delayed schedule of runnable successfully executes after delay
70	dl	1.1	*/
71	dl	1.5	public void testSchedule3() {
72			try {
73	dl	1.7	TrackedRunnable runnable = new TrackedRunnable();
74	dl	1.5	ScheduledExecutor p1 = new ScheduledExecutor(1);
75			p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
76	dl	1.4	Thread.sleep(SHORT_DELAY_MS);
77			assertFalse(runnable.done);
78	dl	1.2	Thread.sleep(MEDIUM_DELAY_MS);
79	dl	1.1	assertTrue(runnable.done);
80	dl	1.5	p1.shutdown();
81			joinPool(p1);
82	dl	1.1	} catch(Exception e){
83	dl	1.5	unexpectedException();
84	dl	1.1	}
85			}
86
87			/**
88	dl	1.6	* scheduleAtFixedRate executes runnable after given initial delay
89	dl	1.1	*/
90	dl	1.5	public void testSchedule4() {
91			try {
92	dl	1.7	TrackedRunnable runnable = new TrackedRunnable();
93	dl	1.5	ScheduledExecutor p1 = new ScheduledExecutor(1);
94	dl	1.6	ScheduledCancellable h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
95			assertFalse(runnable.done);
96			Thread.sleep(MEDIUM_DELAY_MS);
97			assertTrue(runnable.done);
98			h.cancel(true);
99			p1.shutdown();
100			joinPool(p1);
101			} catch(Exception e){
102			unexpectedException();
103			}
104			}
105
106			/**
107			* scheduleWithFixedDelay executes runnable after given initial delay
108			*/
109			public void testSchedule5() {
110			try {
111	dl	1.7	TrackedRunnable runnable = new TrackedRunnable();
112	dl	1.6	ScheduledExecutor p1 = new ScheduledExecutor(1);
113			ScheduledCancellable h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
114	dl	1.4	assertFalse(runnable.done);
115	dl	1.2	Thread.sleep(MEDIUM_DELAY_MS);
116	dl	1.1	assertTrue(runnable.done);
117	dl	1.6	h.cancel(true);
118	dl	1.5	p1.shutdown();
119			joinPool(p1);
120	dl	1.1	} catch(Exception e){
121	dl	1.5	unexpectedException();
122	dl	1.1	}
123			}
124
125	dl	1.6	/**
126			* execute (null) throws NPE
127			*/
128			public void testExecuteNull() {
129			ScheduledExecutor se = null;
130			try {
131			se = new ScheduledExecutor(1);
132			se.execute(null);
133			shouldThrow();
134			} catch(NullPointerException success){}
135			catch(Exception e){
136			unexpectedException();
137			}
138
139			joinPool(se);
140			}
141
142			/**
143			* schedule (null) throws NPE
144			*/
145			public void testScheduleNull() {
146			ScheduledExecutor se = new ScheduledExecutor(1);
147			try {
148	dl	1.7	TrackedCallable callable = null;
149	dl	1.6	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
150			shouldThrow();
151			} catch(NullPointerException success){}
152			catch(Exception e){
153			unexpectedException();
154			}
155			joinPool(se);
156			}
157	dl	1.1
158			/**
159	dl	1.6	* execute throws RejectedExecutionException if shutdown
160	dl	1.1	*/
161	dl	1.5	public void testSchedule1_RejectedExecutionException() {
162	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
163	dl	1.5	try {
164	dl	1.1	se.shutdown();
165	dl	1.4	se.schedule(new NoOpRunnable(),
166			MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
167	dl	1.5	shouldThrow();
168	dl	1.4	} catch(RejectedExecutionException success){
169			}
170			joinPool(se);
171
172	dl	1.1	}
173
174			/**
175	dl	1.6	* schedule throws RejectedExecutionException if shutdown
176	dl	1.1	*/
177	dl	1.5	public void testSchedule2_RejectedExecutionException() {
178	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
179	dl	1.5	try {
180	dl	1.1	se.shutdown();
181	dl	1.4	se.schedule(new NoOpCallable(),
182			MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
183	dl	1.5	shouldThrow();
184	dl	1.4	} catch(RejectedExecutionException success){
185			}
186			joinPool(se);
187	dl	1.1	}
188
189			/**
190	dl	1.6	* schedule callable throws RejectedExecutionException if shutdown
191	dl	1.1	*/
192	dl	1.5	public void testSchedule3_RejectedExecutionException() {
193	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
194	dl	1.5	try {
195	dl	1.1	se.shutdown();
196	dl	1.4	se.schedule(new NoOpCallable(),
197			MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
198	dl	1.5	shouldThrow();
199	dl	1.4	} catch(RejectedExecutionException success){
200			}
201			joinPool(se);
202	dl	1.1	}
203
204			/**
205	dl	1.6	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
206	dl	1.1	*/
207	dl	1.5	public void testScheduleAtFixedRate1_RejectedExecutionException() {
208	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
209	dl	1.5	try {
210	dl	1.1	se.shutdown();
211	dl	1.4	se.scheduleAtFixedRate(new NoOpRunnable(),
212			MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
213	dl	1.5	shouldThrow();
214	dl	1.4	} catch(RejectedExecutionException success){
215			}
216			joinPool(se);
217	dl	1.1	}
218
219			/**
220	dl	1.6	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
221	dl	1.1	*/
222	dl	1.5	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
223	dl	1.4	ScheduledExecutor se = new ScheduledExecutor(1);
224	dl	1.5	try {
225	dl	1.1	se.shutdown();
226	dl	1.4	se.scheduleWithFixedDelay(new NoOpRunnable(),
227			MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
228	dl	1.5	shouldThrow();
229	dl	1.4	} catch(RejectedExecutionException success){
230			}
231			joinPool(se);
232	dl	1.1	}
233
234			/**
235	dl	1.6	* getActiveCount increases but doesn't overestimate, when a
236			* thread becomes active
237	dl	1.2	*/
238	dl	1.5	public void testGetActiveCount() {
239			ScheduledExecutor p2 = new ScheduledExecutor(2);
240			assertEquals(0, p2.getActiveCount());
241			p2.execute(new SmallRunnable());
242			try {
243	dl	1.4	Thread.sleep(SHORT_DELAY_MS);
244			} catch(Exception e){
245	dl	1.5	unexpectedException();
246	dl	1.2	}
247	dl	1.5	assertEquals(1, p2.getActiveCount());
248			joinPool(p2);
249	dl	1.2	}
250
251			/**
252	dl	1.6	* getCompletedTaskCount increases, but doesn't overestimate,
253			* when tasks complete
254	dl	1.2	*/
255	dl	1.5	public void testGetCompletedTaskCount() {
256			ScheduledExecutor p2 = new ScheduledExecutor(2);
257			assertEquals(0, p2.getCompletedTaskCount());
258			p2.execute(new SmallRunnable());
259			try {
260	dl	1.4	Thread.sleep(MEDIUM_DELAY_MS);
261			} catch(Exception e){
262	dl	1.5	unexpectedException();
263	dl	1.2	}
264	dl	1.5	assertEquals(1, p2.getCompletedTaskCount());
265			joinPool(p2);
266	dl	1.2	}
267
268			/**
269	dl	1.6	* getCorePoolSize returns size given in constructor if not otherwise set
270	dl	1.2	*/
271	dl	1.5	public void testGetCorePoolSize() {
272			ScheduledExecutor p1 = new ScheduledExecutor(1);
273			assertEquals(1, p1.getCorePoolSize());
274			joinPool(p1);
275	dl	1.2	}
276
277			/**
278	dl	1.6	* getLargestPoolSize increases, but doesn't overestimate, when
279			* multiple threads active
280	dl	1.2	*/
281	dl	1.5	public void testGetLargestPoolSize() {
282			ScheduledExecutor p2 = new ScheduledExecutor(2);
283			assertEquals(0, p2.getLargestPoolSize());
284			p2.execute(new SmallRunnable());
285			p2.execute(new SmallRunnable());
286			try {
287	dl	1.4	Thread.sleep(SHORT_DELAY_MS);
288			} catch(Exception e){
289	dl	1.5	unexpectedException();
290	dl	1.2	}
291	dl	1.5	assertEquals(2, p2.getLargestPoolSize());
292			joinPool(p2);
293	dl	1.2	}
294
295			/**
296	dl	1.6	* getPoolSize increases, but doesn't overestimate, when threads
297			* become active
298	dl	1.2	*/
299	dl	1.5	public void testGetPoolSize() {
300			ScheduledExecutor p1 = new ScheduledExecutor(1);
301			assertEquals(0, p1.getPoolSize());
302			p1.execute(new SmallRunnable());
303			assertEquals(1, p1.getPoolSize());
304			joinPool(p1);
305	dl	1.2	}
306
307			/**
308	dl	1.6	* getTaskCount increases, but doesn't overestimate, when tasks
309			* submitted
310	dl	1.2	*/
311	dl	1.5	public void testGetTaskCount() {
312			ScheduledExecutor p1 = new ScheduledExecutor(1);
313			assertEquals(0, p1.getTaskCount());
314	dl	1.4	for(int i = 0; i < 5; i++)
315	dl	1.5	p1.execute(new SmallRunnable());
316			try {
317	dl	1.4	Thread.sleep(SHORT_DELAY_MS);
318			} catch(Exception e){
319	dl	1.5	unexpectedException();
320	dl	1.2	}
321	dl	1.5	assertEquals(5, p1.getTaskCount());
322			joinPool(p1);
323	dl	1.2	}
324
325			/**
326	dl	1.6	* is isShutDown is false before shutdown, true after
327	dl	1.2	*/
328	dl	1.5	public void testIsShutdown() {
329	dl	1.2
330	dl	1.5	ScheduledExecutor p1 = new ScheduledExecutor(1);
331	dl	1.2	try {
332	dl	1.5	assertFalse(p1.isShutdown());
333	dl	1.2	}
334			finally {
335	dl	1.5	p1.shutdown();
336	dl	1.2	}
337	dl	1.5	assertTrue(p1.isShutdown());
338	dl	1.2	}
339
340
341			/**
342	dl	1.6	* isTerminated is false before termination, true after
343	dl	1.2	*/
344	dl	1.5	public void testIsTerminated() {
345			ScheduledExecutor p1 = new ScheduledExecutor(1);
346	dl	1.2	try {
347	dl	1.5	p1.execute(new SmallRunnable());
348	dl	1.2	} finally {
349	dl	1.5	p1.shutdown();
350	dl	1.2	}
351	dl	1.4	try {
352	dl	1.5	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
353			assertTrue(p1.isTerminated());
354	dl	1.2	} catch(Exception e){
355	dl	1.5	unexpectedException();
356			}
357			}
358
359			/**
360	dl	1.6	* isTerminating is not true when running or when terminated
361	dl	1.5	*/
362			public void testIsTerminating() {
363			ScheduledExecutor p1 = new ScheduledExecutor(1);
364			assertFalse(p1.isTerminating());
365			try {
366			p1.execute(new SmallRunnable());
367			assertFalse(p1.isTerminating());
368			} finally {
369			p1.shutdown();
370			}
371			try {
372			assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
373			assertTrue(p1.isTerminated());
374			assertFalse(p1.isTerminating());
375			} catch(Exception e){
376			unexpectedException();
377	dl	1.2	}
378			}
379
380			/**
381	dl	1.6	* purge removes cancelled tasks from the queue
382	dl	1.2	*/
383	dl	1.5	public void testPurge() {
384			ScheduledExecutor p1 = new ScheduledExecutor(1);
385	dl	1.4	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
386			for(int i = 0; i < 5; i++){
387	dl	1.5	tasks[i] = p1.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
388	dl	1.2	}
389	dl	1.4	int max = 5;
390			if (tasks[4].cancel(true)) --max;
391			if (tasks[3].cancel(true)) --max;
392	dl	1.5	p1.purge();
393			long count = p1.getTaskCount();
394	dl	1.4	assertTrue(count > 0 && count <= max);
395	dl	1.5	joinPool(p1);
396	dl	1.2	}
397
398			/**
399	dl	1.6	* shutDownNow returns a list containing tasks that were not run
400	dl	1.2	*/
401	dl	1.5	public void testShutDownNow() {
402			ScheduledExecutor p1 = new ScheduledExecutor(1);
403	dl	1.2	for(int i = 0; i < 5; i++)
404	dl	1.5	p1.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
405			List l = p1.shutdownNow();
406			assertTrue(p1.isShutdown());
407	dl	1.2	assertTrue(l.size() > 0 && l.size() <= 5);
408	dl	1.5	joinPool(p1);
409	dl	1.2	}
410
411	dl	1.5	/**
412	dl	1.6	* In default setting, shutdown cancels periodic but not delayed
413			* tasks at shutdown
414	dl	1.5	*/
415			public void testShutDown1() {
416	dl	1.2	try {
417	dl	1.5	ScheduledExecutor p1 = new ScheduledExecutor(1);
418			assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
419			assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
420	dl	1.2
421			ScheduledCancellable[] tasks = new ScheduledCancellable[5];
422			for(int i = 0; i < 5; i++)
423	dl	1.5	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
424			p1.shutdown();
425			BlockingQueue q = p1.getQueue();
426	dl	1.2	for (Iterator it = q.iterator(); it.hasNext();) {
427			ScheduledCancellable t = (ScheduledCancellable)it.next();
428			assertFalse(t.isCancelled());
429			}
430	dl	1.5	assertTrue(p1.isShutdown());
431	dl	1.4	Thread.sleep(SMALL_DELAY_MS);
432	dl	1.2	for (int i = 0; i < 5; ++i) {
433			assertTrue(tasks[i].isDone());
434			assertFalse(tasks[i].isCancelled());
435			}
436
437			}
438			catch(Exception ex) {
439	dl	1.5	unexpectedException();
440	dl	1.2	}
441			}
442
443
444	dl	1.5	/**
445	dl	1.6	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
446			* delayed tasks are cancelled at shutdown
447	dl	1.5	*/
448			public void testShutDown2() {
449	dl	1.2	try {
450	dl	1.5	ScheduledExecutor p1 = new ScheduledExecutor(1);
451			p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
452	dl	1.2	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
453			for(int i = 0; i < 5; i++)
454	dl	1.5	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
455			p1.shutdown();
456			assertTrue(p1.isShutdown());
457			BlockingQueue q = p1.getQueue();
458	dl	1.2	assertTrue(q.isEmpty());
459	dl	1.4	Thread.sleep(SMALL_DELAY_MS);
460	dl	1.5	assertTrue(p1.isTerminated());
461	dl	1.2	}
462			catch(Exception ex) {
463	dl	1.5	unexpectedException();
464	dl	1.2	}
465			}
466
467
468	dl	1.5	/**
469	dl	1.6	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
470			* periodic tasks are not cancelled at shutdown
471	dl	1.5	*/
472			public void testShutDown3() {
473	dl	1.2	try {
474	dl	1.5	ScheduledExecutor p1 = new ScheduledExecutor(1);
475			p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
476	dl	1.2	ScheduledCancellable task =
477	dl	1.5	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
478			p1.shutdown();
479			assertTrue(p1.isShutdown());
480			BlockingQueue q = p1.getQueue();
481	dl	1.2	assertTrue(q.isEmpty());
482			Thread.sleep(SHORT_DELAY_MS);
483	dl	1.5	assertTrue(p1.isTerminated());
484	dl	1.2	}
485			catch(Exception ex) {
486	dl	1.5	unexpectedException();
487	dl	1.2	}
488			}
489
490	dl	1.5	/**
491	dl	1.6	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
492			* periodic tasks are cancelled at shutdown
493	dl	1.5	*/
494			public void testShutDown4() {
495			ScheduledExecutor p1 = new ScheduledExecutor(1);
496	dl	1.2	try {
497	dl	1.5	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
498	dl	1.2	ScheduledCancellable task =
499	dl	1.5	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
500	dl	1.2	assertFalse(task.isCancelled());
501	dl	1.5	p1.shutdown();
502	dl	1.2	assertFalse(task.isCancelled());
503	dl	1.5	assertFalse(p1.isTerminated());
504			assertTrue(p1.isShutdown());
505	dl	1.2	Thread.sleep(SHORT_DELAY_MS);
506			assertFalse(task.isCancelled());
507			task.cancel(true);
508			assertTrue(task.isCancelled());
509			Thread.sleep(SHORT_DELAY_MS);
510	dl	1.5	assertTrue(p1.isTerminated());
511	dl	1.2	}
512			catch(Exception ex) {
513	dl	1.5	unexpectedException();
514	dl	1.2	}
515			finally {
516	dl	1.5	p1.shutdownNow();
517	dl	1.2	}
518	dl	1.1	}
519
520			}