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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 1.14 by jsr166, Sat Nov 21 02:07:27 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);
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	>
336	>	/**
337	>	*  Timed wait without holding lock throws
338	>	*  IllegalMonitorStateException
339	>	*/
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	>	Thread.sleep(SHORT_DELAY_MS);
352	>	t.interrupt();
353	>	t.join();
354		}
355
116	–	// Exception tests
117	–
356		/**
357	<	*  This test specifically to catch the unreported exception
357	>	* timedWait throws InterruptedException when interrupted
358		*/
359	<	public void testTimedWaitForUnreportedIllegalMonitorException() {
360	<	//created a new thread with anonymous runnable
361	<
362	<	Thread t = new Thread(new Runnable() {
363	<	public void run() {
364	<	Object o = new Object();
365	<	TimeUnit tu = TimeUnit.MILLISECONDS;
366	<	try {
129	<	tu.timedWait(o,40000);
130	<	fail("should throw");
131	<	}
132	<	catch (InterruptedException ie) {
133	<	fail("should not throw IE here");
134	<	}
135	<	catch(IllegalMonitorStateException success) {
136	<	}
137	<
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	<	});
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	<	*  Test to verify that timedWait will throw InterruptedException.
381	<	*  Thread t waits on timedWait while the main thread interrupts it.
382	<	*  Note:  This does not throw IllegalMonitorException since timeWait
383	<	*         is synchronized on o
384	<	*/
385	<	public void testTimedWait() {
386	<	Thread t = new Thread(new Runnable() {
387	<	public void run() {
388	<	Object o = new Object();
389	<
390	<	TimeUnit tu = TimeUnit.MILLISECONDS;
391	<	try {
392	<	synchronized(o) {
393	<	tu.timedWait(o,1000);
394	<	}
395	<	fail("should throw");
396	<	}
397	<	catch(InterruptedException success) {}
398	<	catch(IllegalMonitorStateException failure) {
399	<	fail("should not throw");
400	<	}
401	<	}
402	<	});
403	<	t.start();
404	<	try {
405	<	Thread.sleep(100);
406	<	t.interrupt();
407	<	t.join();
408	<	} catch(Exception e) {
409	<	fail("Unexpected exception");
410	<	}
411	<	}
183	<
184	<
185	<	/**
186	<	*  Test to verify that timedJoin will throw InterruptedException.
187	<	*  Thread t waits on timedJoin while the main thread interrupts it.
188	<	*/
189	<	public void testTimedJoin() {
190	<	Thread t = new Thread(new Runnable() {
191	<	public void run() {
192	<	TimeUnit tu = TimeUnit.MILLISECONDS;
193	<	try {
194	<	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	<	});
208	<	t.start();
209	<	try {
210	<	Thread.sleep(100);
211	<	t.interrupt();
212	<	t.join();
213	<	} catch(Exception e) {
214	<	fail("Unexpected exception");
215	<	}
216	<	}
217	<
218	<	/**
219	<	*  Test to verify that timedSleep will throw InterruptedException.
220	<	*  Thread t waits on timedSleep while the main thread interrupts it.
221	<	*/
222	<	public void testTimedSleep() {
223	<	//created a new thread with anonymous runnable
224	<
225	<	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	<	});
235	<	t.start();
236	<	try {
237	<	Thread.sleep(100);
238	<	t.interrupt();
239	<	t.join();
240	<	} catch(Exception e) {
241	<	fail("Unexpected exception");
242	<	}
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	>	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	>	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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