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

Comparing jsr166/src/test/tck/DelayQueueTest.java (file contents):
Revision 1.5 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.14 by dl, Sun Sep 25 13:10:59 2005 UTC

#	Line 1 | Line 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.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/licenses/publicdomain
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
#	Line 21 | Line 22 | public class DelayQueueTest extends JSR1
22		private static final int NOCAP = Integer.MAX_VALUE;
23
24		/**
25	<	* A delayed implmentation for testing.
25	>	* A delayed implementation for testing.
26		* Most  tests use Pseudodelays, where delays are all elapsed
27		* (so, no blocking solely for delays) but are still ordered
28		*/
29		static class PDelay implements Delayed {
30		int pseudodelay;
31		PDelay(int i) { pseudodelay = Integer.MIN_VALUE + i; }
32	<	public int compareTo(Object y) {
32	>	public int compareTo(PDelay y) {
33		int i = pseudodelay;
34		int j = ((PDelay)y).pseudodelay;
35		if (i < j) return -1;
#	Line 36 | Line 37 | public class DelayQueueTest extends JSR1
37		return 0;
38		}
39
40	<	public int compareTo(PDelay y) {
40	>	public int compareTo(Delayed y) {
41		int i = pseudodelay;
42		int j = ((PDelay)y).pseudodelay;
43		if (i < j) return -1;
#	Line 73 | Line 74 | public class DelayQueueTest extends JSR1
74		NanoDelay(long i) {
75		trigger = System.nanoTime() + i;
76		}
77	<	public int compareTo(Object y) {
77	>	public int compareTo(NanoDelay y) {
78		long i = trigger;
79		long j = ((NanoDelay)y).trigger;
80		if (i < j) return -1;
#	Line 81 | Line 82 | public class DelayQueueTest extends JSR1
82		return 0;
83		}
84
85	<	public int compareTo(NanoDelay y) {
85	>	public int compareTo(Delayed y) {
86		long i = trigger;
87		long j = ((NanoDelay)y).trigger;
88		if (i < j) return -1;
#	Line 232 | Line 233 | public class DelayQueueTest extends JSR1
233		}
234
235		/**
236	+	* add(null) throws NPE
237	+	*/
238	+	public void testAddNull() {
239	+	try {
240	+	DelayQueue q = new DelayQueue();
241	+	q.add(null);
242	+	shouldThrow();
243	+	} catch (NullPointerException success) { }
244	+	}
245	+
246	+	/**
247		* offer non-null succeeds
248		*/
249		public void testOffer() {
#	Line 262 | Line 274 | public class DelayQueueTest extends JSR1
274		}
275		catch (NullPointerException success) {}
276		}
277	+
278	+
279	+	/**
280	+	* addAll(this) throws IAE
281	+	*/
282	+	public void testAddAllSelf() {
283	+	try {
284	+	DelayQueue q = populatedQueue(SIZE);
285	+	q.addAll(q);
286	+	shouldThrow();
287	+	}
288	+	catch (IllegalArgumentException success) {}
289	+	}
290	+
291		/**
292		* addAll of a collection with null elements throws NPE
293		*/
#	Line 566 | Line 592 | public class DelayQueueTest extends JSR1
592		for (int i = 0; i < SIZE; ++i) {
593		assertEquals(new PDelay(i), ((PDelay)q.peek()));
594		q.poll();
595	<	assertTrue(q.peek() == null ||
596	<	i != ((PDelay)q.peek()).intValue());
595	>	if (q.isEmpty())
596	>	assertNull(q.peek());
597	>	else
598	>	assertTrue(i != ((PDelay)q.peek()).intValue());
599		}
600		assertNull(q.peek());
601		}
#	Line 639 | Line 667 | public class DelayQueueTest extends JSR1
667		assertTrue(q.isEmpty());
668		assertEquals(0, q.size());
669		assertEquals(NOCAP, q.remainingCapacity());
670	<	q.add(new PDelay(1));
670	>	PDelay x = new PDelay(1);
671	>	q.add(x);
672		assertFalse(q.isEmpty());
673	+	assertTrue(q.contains(x));
674		q.clear();
675		assertTrue(q.isEmpty());
676		}
#	Line 724 | Line 754 | public class DelayQueueTest extends JSR1
754		unexpectedException();
755		}
756		}
757	+
758	+
759	+	/**
760	+	* toArray(null) throws NPE
761	+	*/
762	+	public void testToArray_BadArg() {
763	+	try {
764	+	DelayQueue q = populatedQueue(SIZE);
765	+	Object o[] = q.toArray(null);
766	+	shouldThrow();
767	+	} catch(NullPointerException success){}
768	+	}
769	+
770	+	/**
771	+	* toArray with incompatible array type throws CCE
772	+	*/
773	+	public void testToArray1_BadArg() {
774	+	try {
775	+	DelayQueue q = populatedQueue(SIZE);
776	+	Object o[] = q.toArray(new String[10] );
777	+	shouldThrow();
778	+	} catch(ArrayStoreException  success){}
779	+	}
780
781		/**
782		* iterator iterates through all elements
#	Line 804 | Line 857 | public class DelayQueueTest extends JSR1
857
858
859		/**
860	<	* Dekayed actions do not occur until their delay elapses
860	>	* Delayed actions do not occur until their delay elapses
861		*/
862		public void testDelay() {
863		DelayQueue q = new DelayQueue();
#	Line 832 | Line 885 | public class DelayQueueTest extends JSR1
885		}
886		}
887
888	+	/**
889	+	* peek of a non-empty queue returns non-null even if not expired
890	+	*/
891	+	public void testPeekDelayed() {
892	+	DelayQueue q = new DelayQueue();
893	+	q.add(new NanoDelay(Long.MAX_VALUE));
894	+	assert(q.peek() != null);
895	+	}
896	+
897	+
898	+	/**
899	+	* poll of a non-empty queue returns null if no expired elements.
900	+	*/
901	+	public void testPollDelayed() {
902	+	DelayQueue q = new DelayQueue();
903	+	q.add(new NanoDelay(Long.MAX_VALUE));
904	+	assertNull(q.poll());
905	+	}
906	+
907	+	/**
908	+	* timed poll of a non-empty queue returns null if no expired elements.
909	+	*/
910	+	public void testTimedPollDelayed() {
911	+	DelayQueue q = new DelayQueue();
912	+	q.add(new NanoDelay(LONG_DELAY_MS * 1000000L));
913	+	try {
914	+	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
915	+	} catch (Exception ex) {
916	+	unexpectedException();
917	+	}
918	+	}
919	+
920	+	/**
921	+	* drainTo(null) throws NPE
922	+	*/
923	+	public void testDrainToNull() {
924	+	DelayQueue q = populatedQueue(SIZE);
925	+	try {
926	+	q.drainTo(null);
927	+	shouldThrow();
928	+	} catch(NullPointerException success) {
929	+	}
930	+	}
931	+
932	+	/**
933	+	* drainTo(this) throws IAE
934	+	*/
935	+	public void testDrainToSelf() {
936	+	DelayQueue q = populatedQueue(SIZE);
937	+	try {
938	+	q.drainTo(q);
939	+	shouldThrow();
940	+	} catch(IllegalArgumentException success) {
941	+	}
942	+	}
943	+
944	+	/**
945	+	* drainTo(c) empties queue into another collection c
946	+	*/
947	+	public void testDrainTo() {
948	+	DelayQueue q = new DelayQueue();
949	+	PDelay[] elems = new PDelay[SIZE];
950	+	for (int i = 0; i < SIZE; ++i) {
951	+	elems[i] = new PDelay(i);
952	+	q.add(elems[i]);
953	+	}
954	+	ArrayList l = new ArrayList();
955	+	q.drainTo(l);
956	+	assertEquals(q.size(), 0);
957	+	for (int i = 0; i < SIZE; ++i)
958	+	assertEquals(l.get(i), elems[i]);
959	+	q.add(elems[0]);
960	+	q.add(elems[1]);
961	+	assertFalse(q.isEmpty());
962	+	assertTrue(q.contains(elems[0]));
963	+	assertTrue(q.contains(elems[1]));
964	+	l.clear();
965	+	q.drainTo(l);
966	+	assertEquals(q.size(), 0);
967	+	assertEquals(l.size(), 2);
968	+	for (int i = 0; i < 2; ++i)
969	+	assertEquals(l.get(i), elems[i]);
970	+	}
971	+
972	+	/**
973	+	* drainTo empties queue
974	+	*/
975	+	public void testDrainToWithActivePut() {
976	+	final DelayQueue q = populatedQueue(SIZE);
977	+	Thread t = new Thread(new Runnable() {
978	+	public void run() {
979	+	q.put(new PDelay(SIZE+1));
980	+	}
981	+	});
982	+	try {
983	+	t.start();
984	+	ArrayList l = new ArrayList();
985	+	q.drainTo(l);
986	+	assertTrue(l.size() >= SIZE);
987	+	t.join();
988	+	assertTrue(q.size() + l.size() >= SIZE);
989	+	} catch(Exception e){
990	+	unexpectedException();
991	+	}
992	+	}
993	+
994	+	/**
995	+	* drainTo(null, n) throws NPE
996	+	*/
997	+	public void testDrainToNullN() {
998	+	DelayQueue q = populatedQueue(SIZE);
999	+	try {
1000	+	q.drainTo(null, 0);
1001	+	shouldThrow();
1002	+	} catch(NullPointerException success) {
1003	+	}
1004	+	}
1005	+
1006	+	/**
1007	+	* drainTo(this, n) throws IAE
1008	+	*/
1009	+	public void testDrainToSelfN() {
1010	+	DelayQueue q = populatedQueue(SIZE);
1011	+	try {
1012	+	q.drainTo(q, 0);
1013	+	shouldThrow();
1014	+	} catch(IllegalArgumentException success) {
1015	+	}
1016	+	}
1017	+
1018	+	/**
1019	+	* drainTo(c, n) empties first max {n, size} elements of queue into c
1020	+	*/
1021	+	public void testDrainToN() {
1022	+	for (int i = 0; i < SIZE + 2; ++i) {
1023	+	DelayQueue q = populatedQueue(SIZE);
1024	+	ArrayList l = new ArrayList();
1025	+	q.drainTo(l, i);
1026	+	int k = (i < SIZE)? i : SIZE;
1027	+	assertEquals(q.size(), SIZE-k);
1028	+	assertEquals(l.size(), k);
1029	+	}
1030	+	}
1031	+
1032	+
1033		}

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