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Comparing jsr166/src/test/tck/TimeUnitTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:56 2003 UTC vs.
Revision 1.13 by jsr166, Tue Nov 17 06:28:37 2009 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
10		import junit.framework.*;
11		import java.util.concurrent.*;
12	+	import java.io.*;
13
14	<	public class TimeUnitTest extends TestCase {
13	<	static public boolean DEBUG = false;
14	<
15	<
14	>	public class TimeUnitTest extends JSR166TestCase {
15		public static void main(String[] args) {
16	<	junit.textui.TestRunner.run(suite());
16	>	junit.textui.TestRunner.run(suite());
17		}
18	<
18	>
19		public static Test suite() {
20		return new TestSuite(TimeUnitTest.class);
21		}
22
23	+	// (loops to 88888 check increments at all time divisions.)
24	+
25	+	/**
26	+	* convert correctly converts sample values across the units
27	+	*/
28		public void testConvert() {
29	<	for (long t = 0; t < 10; ++t) {
30	<	assertEquals(t,
31	<	TimeUnit.SECONDS.convert(t,
29	>	for (long t = 0; t < 88888; ++t) {
30	>	assertEquals(t*60*60*24,
31	>	TimeUnit.SECONDS.convert(t,
32	>	TimeUnit.DAYS));
33	>	assertEquals(t*60*60,
34	>	TimeUnit.SECONDS.convert(t,
35	>	TimeUnit.HOURS));
36	>	assertEquals(t*60,
37	>	TimeUnit.SECONDS.convert(t,
38	>	TimeUnit.MINUTES));
39	>	assertEquals(t,
40	>	TimeUnit.SECONDS.convert(t,
41		TimeUnit.SECONDS));
42	<	assertEquals(t,
43	<	TimeUnit.SECONDS.convert(1000 * t,
42	>	assertEquals(t,
43	>	TimeUnit.SECONDS.convert(1000L*t,
44		TimeUnit.MILLISECONDS));
45	<	assertEquals(t,
46	<	TimeUnit.SECONDS.convert(1000000 * t,
45	>	assertEquals(t,
46	>	TimeUnit.SECONDS.convert(1000000L*t,
47		TimeUnit.MICROSECONDS));
48	<	assertEquals(t,
49	<	TimeUnit.SECONDS.convert(1000000000 * t,
48	>	assertEquals(t,
49	>	TimeUnit.SECONDS.convert(1000000000L*t,
50		TimeUnit.NANOSECONDS));
51	<	assertEquals(1000 * t,
52	<	TimeUnit.MILLISECONDS.convert(t,
51	>
52	>
53	>	assertEquals(1000L*t*60*60*24,
54	>	TimeUnit.MILLISECONDS.convert(t,
55	>	TimeUnit.DAYS));
56	>	assertEquals(1000L*t*60*60,
57	>	TimeUnit.MILLISECONDS.convert(t,
58	>	TimeUnit.HOURS));
59	>	assertEquals(1000L*t*60,
60	>	TimeUnit.MILLISECONDS.convert(t,
61	>	TimeUnit.MINUTES));
62	>	assertEquals(1000L*t,
63	>	TimeUnit.MILLISECONDS.convert(t,
64		TimeUnit.SECONDS));
65	<	assertEquals(t,
66	<	TimeUnit.MILLISECONDS.convert(t,
65	>	assertEquals(t,
66	>	TimeUnit.MILLISECONDS.convert(t,
67		TimeUnit.MILLISECONDS));
68	<	assertEquals(t,
69	<	TimeUnit.MILLISECONDS.convert(1000 * t,
68	>	assertEquals(t,
69	>	TimeUnit.MILLISECONDS.convert(1000L*t,
70		TimeUnit.MICROSECONDS));
71	<	assertEquals(t,
72	<	TimeUnit.MILLISECONDS.convert(1000000 * t,
71	>	assertEquals(t,
72	>	TimeUnit.MILLISECONDS.convert(1000000L*t,
73		TimeUnit.NANOSECONDS));
74	<	assertEquals(1000000 * t,
75	<	TimeUnit.MICROSECONDS.convert(t,
74	>
75	>	assertEquals(1000000L*t*60*60*24,
76	>	TimeUnit.MICROSECONDS.convert(t,
77	>	TimeUnit.DAYS));
78	>	assertEquals(1000000L*t*60*60,
79	>	TimeUnit.MICROSECONDS.convert(t,
80	>	TimeUnit.HOURS));
81	>	assertEquals(1000000L*t*60,
82	>	TimeUnit.MICROSECONDS.convert(t,
83	>	TimeUnit.MINUTES));
84	>	assertEquals(1000000L*t,
85	>	TimeUnit.MICROSECONDS.convert(t,
86		TimeUnit.SECONDS));
87	<	assertEquals(1000 * t,
88	<	TimeUnit.MICROSECONDS.convert(t,
87	>	assertEquals(1000L*t,
88	>	TimeUnit.MICROSECONDS.convert(t,
89		TimeUnit.MILLISECONDS));
90	<	assertEquals(t,
91	<	TimeUnit.MICROSECONDS.convert(t,
90	>	assertEquals(t,
91	>	TimeUnit.MICROSECONDS.convert(t,
92		TimeUnit.MICROSECONDS));
93	<	assertEquals(t,
94	<	TimeUnit.MICROSECONDS.convert(1000 * t,
93	>	assertEquals(t,
94	>	TimeUnit.MICROSECONDS.convert(1000L*t,
95		TimeUnit.NANOSECONDS));
96	<	assertEquals(1000000000 * t,
97	<	TimeUnit.NANOSECONDS.convert(t,
96	>
97	>	assertEquals(1000000000L*t*60*60*24,
98	>	TimeUnit.NANOSECONDS.convert(t,
99	>	TimeUnit.DAYS));
100	>	assertEquals(1000000000L*t*60*60,
101	>	TimeUnit.NANOSECONDS.convert(t,
102	>	TimeUnit.HOURS));
103	>	assertEquals(1000000000L*t*60,
104	>	TimeUnit.NANOSECONDS.convert(t,
105	>	TimeUnit.MINUTES));
106	>	assertEquals(1000000000L*t,
107	>	TimeUnit.NANOSECONDS.convert(t,
108		TimeUnit.SECONDS));
109	<	assertEquals(1000000 * t,
110	<	TimeUnit.NANOSECONDS.convert(t,
109	>	assertEquals(1000000L*t,
110	>	TimeUnit.NANOSECONDS.convert(t,
111		TimeUnit.MILLISECONDS));
112	<	assertEquals(1000 * t,
113	<	TimeUnit.NANOSECONDS.convert(t,
112	>	assertEquals(1000L*t,
113	>	TimeUnit.NANOSECONDS.convert(t,
114		TimeUnit.MICROSECONDS));
115	<	assertEquals(t,
116	<	TimeUnit.NANOSECONDS.convert(t,
115	>	assertEquals(t,
116	>	TimeUnit.NANOSECONDS.convert(t,
117		TimeUnit.NANOSECONDS));
118		}
119		}
120
121	+	/**
122	+	* toNanos correctly converts sample values in different units to
123	+	* nanoseconds
124	+	*/
125		public void testToNanos() {
126	<	for (long t = 0; t < 10; ++t) {
127	<	assertEquals(1000000000 * t,
126	>	for (long t = 0; t < 88888; ++t) {
127	>	assertEquals(t*1000000000L*60*60*24,
128	>	TimeUnit.DAYS.toNanos(t));
129	>	assertEquals(t*1000000000L*60*60,
130	>	TimeUnit.HOURS.toNanos(t));
131	>	assertEquals(t*1000000000L*60,
132	>	TimeUnit.MINUTES.toNanos(t));
133	>	assertEquals(1000000000L*t,
134		TimeUnit.SECONDS.toNanos(t));
135	<
82	<	assertEquals(1000000 * t,
135	>	assertEquals(1000000L*t,
136		TimeUnit.MILLISECONDS.toNanos(t));
137	<	assertEquals(1000 * t,
137	>	assertEquals(1000L*t,
138		TimeUnit.MICROSECONDS.toNanos(t));
139	<	assertEquals(t,
140	<	TimeUnit.SECONDS.NANOSECONDS.toNanos(t));
139	>	assertEquals(t,
140	>	TimeUnit.NANOSECONDS.toNanos(t));
141	>	}
142	>	}
143	>
144	>	/**
145	>	* toMicros correctly converts sample values in different units to
146	>	* microseconds
147	>	*/
148	>	public void testToMicros() {
149	>	for (long t = 0; t < 88888; ++t) {
150	>	assertEquals(t*1000000L*60*60*24,
151	>	TimeUnit.DAYS.toMicros(t));
152	>	assertEquals(t*1000000L*60*60,
153	>	TimeUnit.HOURS.toMicros(t));
154	>	assertEquals(t*1000000L*60,
155	>	TimeUnit.MINUTES.toMicros(t));
156	>	assertEquals(1000000L*t,
157	>	TimeUnit.SECONDS.toMicros(t));
158	>	assertEquals(1000L*t,
159	>	TimeUnit.MILLISECONDS.toMicros(t));
160	>	assertEquals(t,
161	>	TimeUnit.MICROSECONDS.toMicros(t));
162	>	assertEquals(t,
163	>	TimeUnit.NANOSECONDS.toMicros(t*1000L));
164	>	}
165	>	}
166	>
167	>	/**
168	>	* toMillis correctly converts sample values in different units to
169	>	* milliseconds
170	>	*/
171	>	public void testToMillis() {
172	>	for (long t = 0; t < 88888; ++t) {
173	>	assertEquals(t*1000L*60*60*24,
174	>	TimeUnit.DAYS.toMillis(t));
175	>	assertEquals(t*1000L*60*60,
176	>	TimeUnit.HOURS.toMillis(t));
177	>	assertEquals(t*1000L*60,
178	>	TimeUnit.MINUTES.toMillis(t));
179	>	assertEquals(1000L*t,
180	>	TimeUnit.SECONDS.toMillis(t));
181	>	assertEquals(t,
182	>	TimeUnit.MILLISECONDS.toMillis(t));
183	>	assertEquals(t,
184	>	TimeUnit.MICROSECONDS.toMillis(t*1000L));
185	>	assertEquals(t,
186	>	TimeUnit.NANOSECONDS.toMillis(t*1000000L));
187	>	}
188	>	}
189	>
190	>	/**
191	>	* toSeconds correctly converts sample values in different units to
192	>	* seconds
193	>	*/
194	>	public void testToSeconds() {
195	>	for (long t = 0; t < 88888; ++t) {
196	>	assertEquals(t*60*60*24,
197	>	TimeUnit.DAYS.toSeconds(t));
198	>	assertEquals(t*60*60,
199	>	TimeUnit.HOURS.toSeconds(t));
200	>	assertEquals(t*60,
201	>	TimeUnit.MINUTES.toSeconds(t));
202	>	assertEquals(t,
203	>	TimeUnit.SECONDS.toSeconds(t));
204	>	assertEquals(t,
205	>	TimeUnit.MILLISECONDS.toSeconds(t*1000L));
206	>	assertEquals(t,
207	>	TimeUnit.MICROSECONDS.toSeconds(t*1000000L));
208	>	assertEquals(t,
209	>	TimeUnit.NANOSECONDS.toSeconds(t*1000000000L));
210	>	}
211	>	}
212	>
213	>	/**
214	>	* toMinutes correctly converts sample values in different units to
215	>	* minutes
216	>	*/
217	>	public void testToMinutes() {
218	>	for (long t = 0; t < 88888; ++t) {
219	>	assertEquals(t*60*24,
220	>	TimeUnit.DAYS.toMinutes(t));
221	>	assertEquals(t*60,
222	>	TimeUnit.HOURS.toMinutes(t));
223	>	assertEquals(t,
224	>	TimeUnit.MINUTES.toMinutes(t));
225	>	assertEquals(t,
226	>	TimeUnit.SECONDS.toMinutes(t*60));
227	>	assertEquals(t,
228	>	TimeUnit.MILLISECONDS.toMinutes(t*1000L*60));
229	>	assertEquals(t,
230	>	TimeUnit.MICROSECONDS.toMinutes(t*1000000L*60));
231	>	assertEquals(t,
232	>	TimeUnit.NANOSECONDS.toMinutes(t*1000000000L*60));
233		}
234		}
235
236	+	/**
237	+	* toHours correctly converts sample values in different units to
238	+	* hours
239	+	*/
240	+	public void testToHours() {
241	+	for (long t = 0; t < 88888; ++t) {
242	+	assertEquals(t*24,
243	+	TimeUnit.DAYS.toHours(t));
244	+	assertEquals(t,
245	+	TimeUnit.HOURS.toHours(t));
246	+	assertEquals(t,
247	+	TimeUnit.MINUTES.toHours(t*60));
248	+	assertEquals(t,
249	+	TimeUnit.SECONDS.toHours(t*60*60));
250	+	assertEquals(t,
251	+	TimeUnit.MILLISECONDS.toHours(t*1000L*60*60));
252	+	assertEquals(t,
253	+	TimeUnit.MICROSECONDS.toHours(t*1000000L*60*60));
254	+	assertEquals(t,
255	+	TimeUnit.NANOSECONDS.toHours(t*1000000000L*60*60));
256	+	}
257	+	}
258
259	+	/**
260	+	* toDays correctly converts sample values in different units to
261	+	* days
262	+	*/
263	+	public void testToDays() {
264	+	for (long t = 0; t < 88888; ++t) {
265	+	assertEquals(t,
266	+	TimeUnit.DAYS.toDays(t));
267	+	assertEquals(t,
268	+	TimeUnit.HOURS.toDays(t*24));
269	+	assertEquals(t,
270	+	TimeUnit.MINUTES.toDays(t*60*24));
271	+	assertEquals(t,
272	+	TimeUnit.SECONDS.toDays(t*60*60*24));
273	+	assertEquals(t,
274	+	TimeUnit.MILLISECONDS.toDays(t*1000L*60*60*24));
275	+	assertEquals(t,
276	+	TimeUnit.MICROSECONDS.toDays(t*1000000L*60*60*24));
277	+	assertEquals(t,
278	+	TimeUnit.NANOSECONDS.toDays(t*1000000000L*60*60*24));
279	+	}
280	+	}
281	+
282	+
283	+	/**
284	+	* convert saturates positive too-large values to Long.MAX_VALUE
285	+	* and negative to LONG.MIN_VALUE
286	+	*/
287		public void testConvertSaturate() {
288		assertEquals(Long.MAX_VALUE,
289		TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
#	Line 96 | Line 291 | public class TimeUnitTest extends TestCa
291		assertEquals(Long.MIN_VALUE,
292		TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
293		TimeUnit.SECONDS));
294	+	assertEquals(Long.MAX_VALUE,
295	+	TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
296	+	TimeUnit.MINUTES));
297	+	assertEquals(Long.MIN_VALUE,
298	+	TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
299	+	TimeUnit.MINUTES));
300	+	assertEquals(Long.MAX_VALUE,
301	+	TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
302	+	TimeUnit.HOURS));
303	+	assertEquals(Long.MIN_VALUE,
304	+	TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
305	+	TimeUnit.HOURS));
306	+	assertEquals(Long.MAX_VALUE,
307	+	TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
308	+	TimeUnit.DAYS));
309	+	assertEquals(Long.MIN_VALUE,
310	+	TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
311	+	TimeUnit.DAYS));
312
313		}
314
315	+	/**
316	+	* toNanos saturates positive too-large values to Long.MAX_VALUE
317	+	* and negative to LONG.MIN_VALUE
318	+	*/
319		public void testToNanosSaturate() {
320	<	assertEquals(Long.MAX_VALUE,
321	<	TimeUnit.MILLISECONDS.toNanos(Long.MAX_VALUE / 2));
322	<	assertEquals(Long.MIN_VALUE,
323	<	TimeUnit.MILLISECONDS.toNanos(-Long.MAX_VALUE / 3));
107	<
320	>	assertEquals(Long.MAX_VALUE,
321	>	TimeUnit.MILLISECONDS.toNanos(Long.MAX_VALUE / 2));
322	>	assertEquals(Long.MIN_VALUE,
323	>	TimeUnit.MILLISECONDS.toNanos(-Long.MAX_VALUE / 3));
324		}
325
326
327	+	/**
328	+	* toString returns string containing common name of unit
329	+	*/
330		public void testToString() {
331		String s = TimeUnit.SECONDS.toString();
332	<	assertTrue(s.indexOf("econd") >= 0);
332	>	assertTrue(s.indexOf("ECOND") >= 0);
333		}
334
335	<	// Exception tests
117	<
335	>
336		/**
337	<	*  This test specifically to catch the unreported exception
337	>	*  Timed wait without holding lock throws
338	>	*  IllegalMonitorStateException
339		*/
340	<	public void testTimedWaitForUnreportedIllegalMonitorException() {
341	<	//created a new thread with anonymous runnable
342	<
343	<	Thread t = new Thread(new Runnable() {
344	<	public void run() {
345	<	Object o = new Object();
346	<	TimeUnit tu = TimeUnit.MILLISECONDS;
347	<	try {
348	<	tu.timedWait(o,40000);
349	<	fail("should throw");
131	<	}
132	<	catch (InterruptedException ie) {
133	<	fail("should not throw IE here");
134	<	}
135	<	catch(IllegalMonitorStateException success) {
136	<	}
137	<
138	<	}
139	<	});
340	>	public void testTimedWait_IllegalMonitorException() throws Exception {
341	>	Thread t = new Thread(new CheckedRunnable() {
342	>	public void realRun() throws InterruptedException {
343	>	Object o = new Object();
344	>	TimeUnit tu = TimeUnit.MILLISECONDS;
345	>	try {
346	>	tu.timedWait(o,LONG_DELAY_MS);
347	>	threadShouldThrow();
348	>	} catch (IllegalMonitorStateException success) {}}});
349	>
350		t.start();
351	<	try {
352	<	Thread.sleep(100);
353	<	t.interrupt();
354	<	t.join();
355	<	} catch(Exception e) {
356	<	fail("Unexpected exception");
357	<	}
358	<	}
359	<
360	<	/**
361	<	*  Test to verify that timedWait will throw InterruptedException.
362	<	*  Thread t waits on timedWait while the main thread interrupts it.
363	<	*  Note:  This does not throw IllegalMonitorException since timeWait
364	<	*         is synchronized on o
365	<	*/
366	<	public void testTimedWait() {
367	<	Thread t = new Thread(new Runnable() {
368	<	public void run() {
159	<	Object o = new Object();
160	<
161	<	TimeUnit tu = TimeUnit.MILLISECONDS;
162	<	try {
163	<	synchronized(o) {
164	<	tu.timedWait(o,1000);
165	<	}
166	<	fail("should throw");
167	<	}
168	<	catch(InterruptedException success) {}
169	<	catch(IllegalMonitorStateException failure) {
170	<	fail("should not throw");
171	<	}
172	<	}
173	<	});
351	>	Thread.sleep(SHORT_DELAY_MS);
352	>	t.interrupt();
353	>	t.join();
354	>	}
355	>
356	>	/**
357	>	* timedWait throws InterruptedException when interrupted
358	>	*/
359	>	public void testTimedWait() throws InterruptedException {
360	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
361	>	public void realRun() throws InterruptedException {
362	>	Object o = new Object();
363	>
364	>	TimeUnit tu = TimeUnit.MILLISECONDS;
365	>	synchronized(o) {
366	>	tu.timedWait(o,MEDIUM_DELAY_MS);
367	>	}
368	>	}});
369		t.start();
370	<	try {
371	<	Thread.sleep(100);
372	<	t.interrupt();
373	<	t.join();
374	<	} catch(Exception e) {
375	<	fail("Unexpected exception");
376	<	}
377	<	}
378	<
379	<
380	<	/**
381	<	*  Test to verify that timedJoin will throw InterruptedException.
382	<	*  Thread t waits on timedJoin while the main thread interrupts it.
383	<	*/
384	<	public void testTimedJoin() {
385	<	Thread t = new Thread(new Runnable() {
386	<	public void run() {
387	<	TimeUnit tu = TimeUnit.MILLISECONDS;
388	<	try {
389	<	Thread s = new Thread(new Runnable() {
195	<	public void run() {
196	<	try{
197	<	Thread.sleep(1000);
198	<	}catch(InterruptedException success){}
199	<	}
200	<	});
201	<	s.start();
202	<	tu.timedJoin(s,1000);
203	<	fail("should throw");
204	<	}
205	<	catch(Exception e) {}
206	<	}
207	<	});
370	>	Thread.sleep(SHORT_DELAY_MS);
371	>	t.interrupt();
372	>	t.join();
373	>	}
374	>
375	>
376	>	/**
377	>	* timedJoin throws InterruptedException when interrupted
378	>	*/
379	>	public void testTimedJoin() throws InterruptedException {
380	>	final Thread s = new Thread(new CheckedInterruptedRunnable() {
381	>	public void realRun() throws InterruptedException {
382	>	Thread.sleep(MEDIUM_DELAY_MS);
383	>	}});
384	>	final Thread t = new Thread(new CheckedInterruptedRunnable() {
385	>	public void realRun() throws InterruptedException {
386	>	TimeUnit tu = TimeUnit.MILLISECONDS;
387	>	tu.timedJoin(s, MEDIUM_DELAY_MS);
388	>	}});;
389	>	s.start();
390		t.start();
391	<	try {
392	<	Thread.sleep(100);
393	<	t.interrupt();
394	<	t.join();
395	<	} catch(Exception e) {
396	<	fail("Unexpected exception");
397	<	}
398	<	}
399	<
400	<	/**
401	<	*  Test to verify that timedSleep will throw InterruptedException.
402	<	*  Thread t waits on timedSleep while the main thread interrupts it.
403	<	*/
404	<	public void testTimedSleep() {
405	<	//created a new thread with anonymous runnable
406	<
407	<	Thread t = new Thread(new Runnable() {
226	<	public void run() {
227	<	TimeUnit tu = TimeUnit.MILLISECONDS;
228	<	try {
229	<	tu.sleep(1000);
230	<	fail("should throw");
231	<	}
232	<	catch(InterruptedException success) {}
233	<	}
234	<	});
391	>	Thread.sleep(SHORT_DELAY_MS);
392	>	t.interrupt();
393	>	t.join();
394	>	s.interrupt();
395	>	s.join();
396	>	}
397	>
398	>	/**
399	>	*  timedSleep throws InterruptedException when interrupted
400	>	*/
401	>	public void testTimedSleep() throws InterruptedException {
402	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
403	>	public void realRun() throws InterruptedException {
404	>	TimeUnit tu = TimeUnit.MILLISECONDS;
405	>	tu.sleep(MEDIUM_DELAY_MS);
406	>	}});
407	>
408		t.start();
409	<	try {
410	<	Thread.sleep(100);
411	<	t.interrupt();
239	<	t.join();
240	<	} catch(Exception e) {
241	<	fail("Unexpected exception");
242	<	}
409	>	Thread.sleep(SHORT_DELAY_MS);
410	>	t.interrupt();
411	>	t.join();
412		}
413	+
414	+	/**
415	+	* a deserialized serialized unit is the same instance
416	+	*/
417	+	public void testSerialization() throws Exception {
418	+	TimeUnit q = TimeUnit.MILLISECONDS;
419	+
420	+	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
421	+	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
422	+	out.writeObject(q);
423	+	out.close();
424	+
425	+	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
426	+	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
427	+	TimeUnit r = (TimeUnit)in.readObject();
428	+	assertSame(q, r);
429	+	}
430	+
431		}

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