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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 1.31 by jsr166, Sat May 13 23:50:00 2017 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/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	+	import static java.util.concurrent.TimeUnit.DAYS;
10	+	import static java.util.concurrent.TimeUnit.HOURS;
11	+	import static java.util.concurrent.TimeUnit.MICROSECONDS;
12	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
13	+	import static java.util.concurrent.TimeUnit.MINUTES;
14	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
15	+	import static java.util.concurrent.TimeUnit.SECONDS;
16
17	<	import junit.framework.*;
18	<	import java.util.concurrent.*;
11	<
12	<	public class TimeUnitTest extends TestCase {
13	<	static public boolean DEBUG = false;
17	>	import java.util.concurrent.CountDownLatch;
18	>	import java.util.concurrent.TimeUnit;
19
20	+	import junit.framework.Test;
21	+	import junit.framework.TestSuite;
22
23	+	public class TimeUnitTest extends JSR166TestCase {
24		public static void main(String[] args) {
25	<	junit.textui.TestRunner.run(suite());
25	>	main(suite(), args);
26		}
27	<
27	>
28		public static Test suite() {
29	<	return new TestSuite(TimeUnitTest.class);
29	>	return new TestSuite(TimeUnitTest.class);
30		}
31
32	+	// (loops to 88888 check increments at all time divisions.)
33	+
34	+	/**
35	+	* convert correctly converts sample values across the units
36	+	*/
37		public void testConvert() {
38	<	for (long t = 0; t < 10; ++t) {
39	<	assertEquals(t,
40	<	TimeUnit.SECONDS.convert(t,
41	<	TimeUnit.SECONDS));
42	<	assertEquals(t,
43	<	TimeUnit.SECONDS.convert(1000 * t,
44	<	TimeUnit.MILLISECONDS));
45	<	assertEquals(t,
46	<	TimeUnit.SECONDS.convert(1000000 * t,
47	<	TimeUnit.MICROSECONDS));
48	<	assertEquals(t,
49	<	TimeUnit.SECONDS.convert(1000000000 * t,
50	<	TimeUnit.NANOSECONDS));
51	<	assertEquals(1000 * t,
52	<	TimeUnit.MILLISECONDS.convert(t,
53	<	TimeUnit.SECONDS));
54	<	assertEquals(t,
55	<	TimeUnit.MILLISECONDS.convert(t,
56	<	TimeUnit.MILLISECONDS));
57	<	assertEquals(t,
58	<	TimeUnit.MILLISECONDS.convert(1000 * t,
59	<	TimeUnit.MICROSECONDS));
60	<	assertEquals(t,
61	<	TimeUnit.MILLISECONDS.convert(1000000 * t,
62	<	TimeUnit.NANOSECONDS));
63	<	assertEquals(1000000 * t,
64	<	TimeUnit.MICROSECONDS.convert(t,
65	<	TimeUnit.SECONDS));
66	<	assertEquals(1000 * t,
67	<	TimeUnit.MICROSECONDS.convert(t,
68	<	TimeUnit.MILLISECONDS));
69	<	assertEquals(t,
70	<	TimeUnit.MICROSECONDS.convert(t,
71	<	TimeUnit.MICROSECONDS));
72	<	assertEquals(t,
73	<	TimeUnit.MICROSECONDS.convert(1000 * t,
74	<	TimeUnit.NANOSECONDS));
75	<	assertEquals(1000000000 * t,
76	<	TimeUnit.NANOSECONDS.convert(t,
77	<	TimeUnit.SECONDS));
78	<	assertEquals(1000000 * t,
79	<	TimeUnit.NANOSECONDS.convert(t,
80	<	TimeUnit.MILLISECONDS));
81	<	assertEquals(1000 * t,
82	<	TimeUnit.NANOSECONDS.convert(t,
83	<	TimeUnit.MICROSECONDS));
84	<	assertEquals(t,
85	<	TimeUnit.NANOSECONDS.convert(t,
86	<	TimeUnit.NANOSECONDS));
38	>	for (long t = 0; t < 88888; ++t) {
39	>	assertEquals(t*60*60*24,
40	>	SECONDS.convert(t, DAYS));
41	>	assertEquals(t*60*60,
42	>	SECONDS.convert(t, HOURS));
43	>	assertEquals(t*60,
44	>	SECONDS.convert(t, MINUTES));
45	>	assertEquals(t,
46	>	SECONDS.convert(t, SECONDS));
47	>	assertEquals(t,
48	>	SECONDS.convert(1000L*t, MILLISECONDS));
49	>	assertEquals(t,
50	>	SECONDS.convert(1000000L*t, MICROSECONDS));
51	>	assertEquals(t,
52	>	SECONDS.convert(1000000000L*t, NANOSECONDS));
53	>
54	>	assertEquals(1000L*t*60*60*24,
55	>	MILLISECONDS.convert(t, DAYS));
56	>	assertEquals(1000L*t*60*60,
57	>	MILLISECONDS.convert(t, HOURS));
58	>	assertEquals(1000L*t*60,
59	>	MILLISECONDS.convert(t, MINUTES));
60	>	assertEquals(1000L*t,
61	>	MILLISECONDS.convert(t, SECONDS));
62	>	assertEquals(t,
63	>	MILLISECONDS.convert(t, MILLISECONDS));
64	>	assertEquals(t,
65	>	MILLISECONDS.convert(1000L*t, MICROSECONDS));
66	>	assertEquals(t,
67	>	MILLISECONDS.convert(1000000L*t, NANOSECONDS));
68	>
69	>	assertEquals(1000000L*t*60*60*24,
70	>	MICROSECONDS.convert(t, DAYS));
71	>	assertEquals(1000000L*t*60*60,
72	>	MICROSECONDS.convert(t, HOURS));
73	>	assertEquals(1000000L*t*60,
74	>	MICROSECONDS.convert(t, MINUTES));
75	>	assertEquals(1000000L*t,
76	>	MICROSECONDS.convert(t, SECONDS));
77	>	assertEquals(1000L*t,
78	>	MICROSECONDS.convert(t, MILLISECONDS));
79	>	assertEquals(t,
80	>	MICROSECONDS.convert(t, MICROSECONDS));
81	>	assertEquals(t,
82	>	MICROSECONDS.convert(1000L*t, NANOSECONDS));
83	>
84	>	assertEquals(1000000000L*t*60*60*24,
85	>	NANOSECONDS.convert(t, DAYS));
86	>	assertEquals(1000000000L*t*60*60,
87	>	NANOSECONDS.convert(t, HOURS));
88	>	assertEquals(1000000000L*t*60,
89	>	NANOSECONDS.convert(t, MINUTES));
90	>	assertEquals(1000000000L*t,
91	>	NANOSECONDS.convert(t, SECONDS));
92	>	assertEquals(1000000L*t,
93	>	NANOSECONDS.convert(t, MILLISECONDS));
94	>	assertEquals(1000L*t,
95	>	NANOSECONDS.convert(t, MICROSECONDS));
96	>	assertEquals(t,
97	>	NANOSECONDS.convert(t, NANOSECONDS));
98	>	}
99	>
100	>	for (TimeUnit x : TimeUnit.values()) {
101	>	long[] zs = {
102	>	0, 1, -1,
103	>	Integer.MAX_VALUE, Integer.MIN_VALUE,
104	>	Long.MAX_VALUE, Long.MIN_VALUE,
105	>	};
106	>	for (long z : zs) assertEquals(z, x.convert(z, x));
107		}
108		}
109
110	+	/**
111	+	* toNanos correctly converts sample values in different units to
112	+	* nanoseconds
113	+	*/
114		public void testToNanos() {
115	<	for (long t = 0; t < 10; ++t) {
116	<	assertEquals(1000000000 * t,
117	<	TimeUnit.SECONDS.toNanos(t));
118	<
119	<	assertEquals(1000000 * t,
120	<	TimeUnit.MILLISECONDS.toNanos(t));
121	<	assertEquals(1000 * t,
122	<	TimeUnit.MICROSECONDS.toNanos(t));
123	<	assertEquals(t,
124	<	TimeUnit.SECONDS.NANOSECONDS.toNanos(t));
115	>	for (long t = 0; t < 88888; ++t) {
116	>	assertEquals(t*1000000000L*60*60*24,
117	>	DAYS.toNanos(t));
118	>	assertEquals(t*1000000000L*60*60,
119	>	HOURS.toNanos(t));
120	>	assertEquals(t*1000000000L*60,
121	>	MINUTES.toNanos(t));
122	>	assertEquals(1000000000L*t,
123	>	SECONDS.toNanos(t));
124	>	assertEquals(1000000L*t,
125	>	MILLISECONDS.toNanos(t));
126	>	assertEquals(1000L*t,
127	>	MICROSECONDS.toNanos(t));
128	>	assertEquals(t,
129	>	NANOSECONDS.toNanos(t));
130	>	}
131	>	}
132	>
133	>	/**
134	>	* toMicros correctly converts sample values in different units to
135	>	* microseconds
136	>	*/
137	>	public void testToMicros() {
138	>	for (long t = 0; t < 88888; ++t) {
139	>	assertEquals(t*1000000L*60*60*24,
140	>	DAYS.toMicros(t));
141	>	assertEquals(t*1000000L*60*60,
142	>	HOURS.toMicros(t));
143	>	assertEquals(t*1000000L*60,
144	>	MINUTES.toMicros(t));
145	>	assertEquals(1000000L*t,
146	>	SECONDS.toMicros(t));
147	>	assertEquals(1000L*t,
148	>	MILLISECONDS.toMicros(t));
149	>	assertEquals(t,
150	>	MICROSECONDS.toMicros(t));
151	>	assertEquals(t,
152	>	NANOSECONDS.toMicros(t*1000L));
153	>	}
154	>	}
155	>
156	>	/**
157	>	* toMillis correctly converts sample values in different units to
158	>	* milliseconds
159	>	*/
160	>	public void testToMillis() {
161	>	for (long t = 0; t < 88888; ++t) {
162	>	assertEquals(t*1000L*60*60*24,
163	>	DAYS.toMillis(t));
164	>	assertEquals(t*1000L*60*60,
165	>	HOURS.toMillis(t));
166	>	assertEquals(t*1000L*60,
167	>	MINUTES.toMillis(t));
168	>	assertEquals(1000L*t,
169	>	SECONDS.toMillis(t));
170	>	assertEquals(t,
171	>	MILLISECONDS.toMillis(t));
172	>	assertEquals(t,
173	>	MICROSECONDS.toMillis(t*1000L));
174	>	assertEquals(t,
175	>	NANOSECONDS.toMillis(t*1000000L));
176	>	}
177	>	}
178	>
179	>	/**
180	>	* toSeconds correctly converts sample values in different units to
181	>	* seconds
182	>	*/
183	>	public void testToSeconds() {
184	>	for (long t = 0; t < 88888; ++t) {
185	>	assertEquals(t*60*60*24,
186	>	DAYS.toSeconds(t));
187	>	assertEquals(t*60*60,
188	>	HOURS.toSeconds(t));
189	>	assertEquals(t*60,
190	>	MINUTES.toSeconds(t));
191	>	assertEquals(t,
192	>	SECONDS.toSeconds(t));
193	>	assertEquals(t,
194	>	MILLISECONDS.toSeconds(t*1000L));
195	>	assertEquals(t,
196	>	MICROSECONDS.toSeconds(t*1000000L));
197	>	assertEquals(t,
198	>	NANOSECONDS.toSeconds(t*1000000000L));
199	>	}
200	>	}
201	>
202	>	/**
203	>	* toMinutes correctly converts sample values in different units to
204	>	* minutes
205	>	*/
206	>	public void testToMinutes() {
207	>	for (long t = 0; t < 88888; ++t) {
208	>	assertEquals(t*60*24,
209	>	DAYS.toMinutes(t));
210	>	assertEquals(t*60,
211	>	HOURS.toMinutes(t));
212	>	assertEquals(t,
213	>	MINUTES.toMinutes(t));
214	>	assertEquals(t,
215	>	SECONDS.toMinutes(t*60));
216	>	assertEquals(t,
217	>	MILLISECONDS.toMinutes(t*1000L*60));
218	>	assertEquals(t,
219	>	MICROSECONDS.toMinutes(t*1000000L*60));
220	>	assertEquals(t,
221	>	NANOSECONDS.toMinutes(t*1000000000L*60));
222		}
223		}
224
225	+	/**
226	+	* toHours correctly converts sample values in different units to
227	+	* hours
228	+	*/
229	+	public void testToHours() {
230	+	for (long t = 0; t < 88888; ++t) {
231	+	assertEquals(t*24,
232	+	DAYS.toHours(t));
233	+	assertEquals(t,
234	+	HOURS.toHours(t));
235	+	assertEquals(t,
236	+	MINUTES.toHours(t*60));
237	+	assertEquals(t,
238	+	SECONDS.toHours(t*60*60));
239	+	assertEquals(t,
240	+	MILLISECONDS.toHours(t*1000L*60*60));
241	+	assertEquals(t,
242	+	MICROSECONDS.toHours(t*1000000L*60*60));
243	+	assertEquals(t,
244	+	NANOSECONDS.toHours(t*1000000000L*60*60));
245	+	}
246	+	}
247	+
248	+	/**
249	+	* toDays correctly converts sample values in different units to
250	+	* days
251	+	*/
252	+	public void testToDays() {
253	+	for (long t = 0; t < 88888; ++t) {
254	+	assertEquals(t,
255	+	DAYS.toDays(t));
256	+	assertEquals(t,
257	+	HOURS.toDays(t*24));
258	+	assertEquals(t,
259	+	MINUTES.toDays(t*60*24));
260	+	assertEquals(t,
261	+	SECONDS.toDays(t*60*60*24));
262	+	assertEquals(t,
263	+	MILLISECONDS.toDays(t*1000L*60*60*24));
264	+	assertEquals(t,
265	+	MICROSECONDS.toDays(t*1000000L*60*60*24));
266	+	assertEquals(t,
267	+	NANOSECONDS.toDays(t*1000000000L*60*60*24));
268	+	}
269	+	}
270
271	+	/**
272	+	* convert saturates positive too-large values to Long.MAX_VALUE
273	+	* and negative to LONG.MIN_VALUE
274	+	*/
275		public void testConvertSaturate() {
276		assertEquals(Long.MAX_VALUE,
277	<	TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
278	<	TimeUnit.SECONDS));
277	>	NANOSECONDS.convert(Long.MAX_VALUE / 2, SECONDS));
278	>	assertEquals(Long.MIN_VALUE,
279	>	NANOSECONDS.convert(-Long.MAX_VALUE / 4, SECONDS));
280	>	assertEquals(Long.MAX_VALUE,
281	>	NANOSECONDS.convert(Long.MAX_VALUE / 2, MINUTES));
282		assertEquals(Long.MIN_VALUE,
283	<	TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
284	<	TimeUnit.SECONDS));
283	>	NANOSECONDS.convert(-Long.MAX_VALUE / 4, MINUTES));
284	>	assertEquals(Long.MAX_VALUE,
285	>	NANOSECONDS.convert(Long.MAX_VALUE / 2, HOURS));
286	>	assertEquals(Long.MIN_VALUE,
287	>	NANOSECONDS.convert(-Long.MAX_VALUE / 4, HOURS));
288	>	assertEquals(Long.MAX_VALUE,
289	>	NANOSECONDS.convert(Long.MAX_VALUE / 2, DAYS));
290	>	assertEquals(Long.MIN_VALUE,
291	>	NANOSECONDS.convert(-Long.MAX_VALUE / 4, DAYS));
292
293	+	for (TimeUnit x : TimeUnit.values())
294	+	for (TimeUnit y : TimeUnit.values()) {
295	+	long ratio = x.toNanos(1) / y.toNanos(1);
296	+	if (ratio >= 1) {
297	+	assertEquals(ratio, y.convert(1, x));
298	+	assertEquals(1, x.convert(ratio, y));
299	+	long max = Long.MAX_VALUE/ratio;
300	+	assertEquals(max * ratio, y.convert(max, x));
301	+	assertEquals(-max * ratio, y.convert(-max, x));
302	+	assertEquals(max, x.convert(max * ratio, y));
303	+	assertEquals(-max, x.convert(-max * ratio, y));
304	+	if (max < Long.MAX_VALUE) {
305	+	assertEquals(Long.MAX_VALUE, y.convert(max + 1, x));
306	+	assertEquals(Long.MIN_VALUE, y.convert(-max - 1, x));
307	+	assertEquals(Long.MIN_VALUE, y.convert(Long.MIN_VALUE + 1, x));
308	+	}
309	+	assertEquals(Long.MAX_VALUE, y.convert(Long.MAX_VALUE, x));
310	+	assertEquals(Long.MIN_VALUE, y.convert(Long.MIN_VALUE, x));
311	+	}
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));
324	<
320	>	assertEquals(Long.MAX_VALUE,
321	>	MILLISECONDS.toNanos(Long.MAX_VALUE / 2));
322	>	assertEquals(Long.MIN_VALUE,
323	>	MILLISECONDS.toNanos(-Long.MAX_VALUE / 3));
324	>
325	>	for (TimeUnit x : TimeUnit.values()) {
326	>	long ratio = x.toNanos(1) / NANOSECONDS.toNanos(1);
327	>	if (ratio >= 1) {
328	>	long max = Long.MAX_VALUE/ratio;
329	>	for (long z : new long[] {0, 1, -1, max, -max})
330	>	assertEquals(z * ratio, x.toNanos(z));
331	>	if (max < Long.MAX_VALUE) {
332	>	assertEquals(Long.MAX_VALUE, x.toNanos(max + 1));
333	>	assertEquals(Long.MIN_VALUE, x.toNanos(-max - 1));
334	>	assertEquals(Long.MIN_VALUE, x.toNanos(Long.MIN_VALUE + 1));
335	>	}
336	>	assertEquals(Long.MAX_VALUE, x.toNanos(Long.MAX_VALUE));
337	>	assertEquals(Long.MIN_VALUE, x.toNanos(Long.MIN_VALUE));
338	>	if (max < Integer.MAX_VALUE) {
339	>	assertEquals(Long.MAX_VALUE, x.toNanos(Integer.MAX_VALUE));
340	>	assertEquals(Long.MIN_VALUE, x.toNanos(Integer.MIN_VALUE));
341	>	}
342	>	}
343	>	}
344		}
345
346	+	/**
347	+	* toMicros saturates positive too-large values to Long.MAX_VALUE
348	+	* and negative to LONG.MIN_VALUE
349	+	*/
350	+	public void testToMicrosSaturate() {
351	+	for (TimeUnit x : TimeUnit.values()) {
352	+	long ratio = x.toNanos(1) / MICROSECONDS.toNanos(1);
353	+	if (ratio >= 1) {
354	+	long max = Long.MAX_VALUE/ratio;
355	+	for (long z : new long[] {0, 1, -1, max, -max})
356	+	assertEquals(z * ratio, x.toMicros(z));
357	+	if (max < Long.MAX_VALUE) {
358	+	assertEquals(Long.MAX_VALUE, x.toMicros(max + 1));
359	+	assertEquals(Long.MIN_VALUE, x.toMicros(-max - 1));
360	+	assertEquals(Long.MIN_VALUE, x.toMicros(Long.MIN_VALUE + 1));
361	+	}
362	+	assertEquals(Long.MAX_VALUE, x.toMicros(Long.MAX_VALUE));
363	+	assertEquals(Long.MIN_VALUE, x.toMicros(Long.MIN_VALUE));
364	+	if (max < Integer.MAX_VALUE) {
365	+	assertEquals(Long.MAX_VALUE, x.toMicros(Integer.MAX_VALUE));
366	+	assertEquals(Long.MIN_VALUE, x.toMicros(Integer.MIN_VALUE));
367	+	}
368	+	}
369	+	}
370	+	}
371	+
372	+	/**
373	+	* toMillis saturates positive too-large values to Long.MAX_VALUE
374	+	* and negative to LONG.MIN_VALUE
375	+	*/
376	+	public void testToMillisSaturate() {
377	+	for (TimeUnit x : TimeUnit.values()) {
378	+	long ratio = x.toNanos(1) / MILLISECONDS.toNanos(1);
379	+	if (ratio >= 1) {
380	+	long max = Long.MAX_VALUE/ratio;
381	+	for (long z : new long[] {0, 1, -1, max, -max})
382	+	assertEquals(z * ratio, x.toMillis(z));
383	+	if (max < Long.MAX_VALUE) {
384	+	assertEquals(Long.MAX_VALUE, x.toMillis(max + 1));
385	+	assertEquals(Long.MIN_VALUE, x.toMillis(-max - 1));
386	+	assertEquals(Long.MIN_VALUE, x.toMillis(Long.MIN_VALUE + 1));
387	+	}
388	+	assertEquals(Long.MAX_VALUE, x.toMillis(Long.MAX_VALUE));
389	+	assertEquals(Long.MIN_VALUE, x.toMillis(Long.MIN_VALUE));
390	+	if (max < Integer.MAX_VALUE) {
391	+	assertEquals(Long.MAX_VALUE, x.toMillis(Integer.MAX_VALUE));
392	+	assertEquals(Long.MIN_VALUE, x.toMillis(Integer.MIN_VALUE));
393	+	}
394	+	}
395	+	}
396	+	}
397	+
398	+	/**
399	+	* toSeconds saturates positive too-large values to Long.MAX_VALUE
400	+	* and negative to LONG.MIN_VALUE
401	+	*/
402	+	public void testToSecondsSaturate() {
403	+	for (TimeUnit x : TimeUnit.values()) {
404	+	long ratio = x.toNanos(1) / SECONDS.toNanos(1);
405	+	if (ratio >= 1) {
406	+	long max = Long.MAX_VALUE/ratio;
407	+	for (long z : new long[] {0, 1, -1, max, -max})
408	+	assertEquals(z * ratio, x.toSeconds(z));
409	+	if (max < Long.MAX_VALUE) {
410	+	assertEquals(Long.MAX_VALUE, x.toSeconds(max + 1));
411	+	assertEquals(Long.MIN_VALUE, x.toSeconds(-max - 1));
412	+	assertEquals(Long.MIN_VALUE, x.toSeconds(Long.MIN_VALUE + 1));
413	+	}
414	+	assertEquals(Long.MAX_VALUE, x.toSeconds(Long.MAX_VALUE));
415	+	assertEquals(Long.MIN_VALUE, x.toSeconds(Long.MIN_VALUE));
416	+	if (max < Integer.MAX_VALUE) {
417	+	assertEquals(Long.MAX_VALUE, x.toSeconds(Integer.MAX_VALUE));
418	+	assertEquals(Long.MIN_VALUE, x.toSeconds(Integer.MIN_VALUE));
419	+	}
420	+	}
421	+	}
422	+	}
423	+
424	+	/**
425	+	* toMinutes saturates positive too-large values to Long.MAX_VALUE
426	+	* and negative to LONG.MIN_VALUE
427	+	*/
428	+	public void testToMinutesSaturate() {
429	+	for (TimeUnit x : TimeUnit.values()) {
430	+	long ratio = x.toNanos(1) / MINUTES.toNanos(1);
431	+	if (ratio > 1) {
432	+	long max = Long.MAX_VALUE/ratio;
433	+	for (long z : new long[] {0, 1, -1, max, -max})
434	+	assertEquals(z * ratio, x.toMinutes(z));
435	+	assertEquals(Long.MAX_VALUE, x.toMinutes(max + 1));
436	+	assertEquals(Long.MIN_VALUE, x.toMinutes(-max - 1));
437	+	assertEquals(Long.MAX_VALUE, x.toMinutes(Long.MAX_VALUE));
438	+	assertEquals(Long.MIN_VALUE, x.toMinutes(Long.MIN_VALUE));
439	+	assertEquals(Long.MIN_VALUE, x.toMinutes(Long.MIN_VALUE + 1));
440	+	}
441	+	}
442	+	}
443	+
444	+	/**
445	+	* toHours saturates positive too-large values to Long.MAX_VALUE
446	+	* and negative to LONG.MIN_VALUE
447	+	*/
448	+	public void testToHoursSaturate() {
449	+	for (TimeUnit x : TimeUnit.values()) {
450	+	long ratio = x.toNanos(1) / HOURS.toNanos(1);
451	+	if (ratio >= 1) {
452	+	long max = Long.MAX_VALUE/ratio;
453	+	for (long z : new long[] {0, 1, -1, max, -max})
454	+	assertEquals(z * ratio, x.toHours(z));
455	+	if (max < Long.MAX_VALUE) {
456	+	assertEquals(Long.MAX_VALUE, x.toHours(max + 1));
457	+	assertEquals(Long.MIN_VALUE, x.toHours(-max - 1));
458	+	assertEquals(Long.MIN_VALUE, x.toHours(Long.MIN_VALUE + 1));
459	+	}
460	+	assertEquals(Long.MAX_VALUE, x.toHours(Long.MAX_VALUE));
461	+	assertEquals(Long.MIN_VALUE, x.toHours(Long.MIN_VALUE));
462	+	}
463	+	}
464	+	}
465
466	+	/**
467	+	* toString returns name of unit
468	+	*/
469		public void testToString() {
470	<	String s = TimeUnit.SECONDS.toString();
471	<	assertTrue(s.indexOf("econd") >= 0);
470	>	assertEquals("SECONDS", SECONDS.toString());
471	>	}
472	>
473	>	/**
474	>	* name returns name of unit
475	>	*/
476	>	public void testName() {
477	>	assertEquals("SECONDS", SECONDS.name());
478		}
479
116	–	// Exception tests
117	–
480		/**
481	<	*  This test specifically to catch the unreported exception
481	>	* Timed wait without holding lock throws
482	>	* IllegalMonitorStateException
483		*/
484	<	public void testTimedWaitForUnreportedIllegalMonitorException() {
485	<	//created a new thread with anonymous runnable
484	>	public void testTimedWait_IllegalMonitorException() {
485	>	Thread t = newStartedThread(new CheckedRunnable() {
486	>	public void realRun() throws InterruptedException {
487	>	Object o = new Object();
488	>	TimeUnit tu = MILLISECONDS;
489	>
490	>	try {
491	>	tu.timedWait(o, LONG_DELAY_MS);
492	>	threadShouldThrow();
493	>	} catch (IllegalMonitorStateException success) {}
494	>	}});
495	>
496	>	awaitTermination(t);
497	>	}
498
499	<	Thread t = new Thread(new Runnable() {
500	<	public void run() {
501	<	Object o = new Object();
502	<	TimeUnit tu = TimeUnit.MILLISECONDS;
503	<	try {
504	<	tu.timedWait(o,40000);
505	<	fail("should throw");
499	>	/**
500	>	* timedWait throws InterruptedException when interrupted
501	>	*/
502	>	public void testTimedWait_Interruptible() {
503	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
504	>	Thread t = newStartedThread(new CheckedRunnable() {
505	>	public void realRun() throws InterruptedException {
506	>	Object o = new Object();
507	>	TimeUnit tu = MILLISECONDS;
508	>
509	>	Thread.currentThread().interrupt();
510	>	try {
511	>	synchronized (o) {
512	>	tu.timedWait(o, LONG_DELAY_MS);
513		}
514	<	catch (InterruptedException ie) {
515	<	fail("should not throw IE here");
516	<	}
517	<	catch(IllegalMonitorStateException success) {
514	>	shouldThrow();
515	>	} catch (InterruptedException success) {}
516	>	assertFalse(Thread.interrupted());
517	>
518	>	pleaseInterrupt.countDown();
519	>	try {
520	>	synchronized (o) {
521	>	tu.timedWait(o, LONG_DELAY_MS);
522		}
523	<
524	<	}
525	<	});
526	<	t.start();
527	<	try {
528	<	Thread.sleep(100);
529	<	t.interrupt();
530	<	t.join();
531	<	} catch(Exception e) {
532	<	fail("Unexpected exception");
533	<	}
534	<	}
535	<
536	<	/**
537	<	*  Test to verify that timedWait will throw InterruptedException.
538	<	*  Thread t waits on timedWait while the main thread interrupts it.
539	<	*  Note:  This does not throw IllegalMonitorException since timeWait
540	<	*         is synchronized on o
541	<	*/
542	<	public void testTimedWait() {
543	<	Thread t = new Thread(new Runnable() {
544	<	public void run() {
545	<	Object o = new Object();
546	<
547	<	TimeUnit tu = TimeUnit.MILLISECONDS;
548	<	try {
549	<	synchronized(o) {
550	<	tu.timedWait(o,1000);
551	<	}
552	<	fail("should throw");
553	<	}
554	<	catch(InterruptedException success) {}
555	<	catch(IllegalMonitorStateException failure) {
556	<	fail("should not throw");
557	<	}
558	<	}
559	<	});
560	<	t.start();
561	<	try {
562	<	Thread.sleep(100);
563	<	t.interrupt();
564	<	t.join();
565	<	} catch(Exception e) {
566	<	fail("Unexpected exception");
567	<	}
568	<	}
569	<
570	<
571	<	/**
572	<	*  Test to verify that timedJoin will throw InterruptedException.
573	<	*  Thread t waits on timedJoin while the main thread interrupts it.
574	<	*/
575	<	public void testTimedJoin() {
576	<	Thread t = new Thread(new Runnable() {
577	<	public void run() {
578	<	TimeUnit tu = TimeUnit.MILLISECONDS;
579	<	try {
580	<	Thread s = new Thread(new Runnable() {
581	<	public void run() {
582	<	try{
583	<	Thread.sleep(1000);
584	<	}catch(InterruptedException success){}
585	<	}
586	<	});
587	<	s.start();
588	<	tu.timedJoin(s,1000);
589	<	fail("should throw");
590	<	}
591	<	catch(Exception e) {}
592	<	}
593	<	});
594	<	t.start();
595	<	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	<	}
523	>	shouldThrow();
524	>	} catch (InterruptedException success) {}
525	>	assertFalse(Thread.interrupted());
526	>	}});
527	>
528	>	await(pleaseInterrupt);
529	>	assertThreadBlocks(t, Thread.State.TIMED_WAITING);
530	>	t.interrupt();
531	>	awaitTermination(t);
532	>	}
533	>
534	>	/**
535	>	* timedJoin throws InterruptedException when interrupted
536	>	*/
537	>	public void testTimedJoin_Interruptible() {
538	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
539	>	final Thread s = newStartedThread(new CheckedInterruptedRunnable() {
540	>	public void realRun() throws InterruptedException {
541	>	Thread.sleep(LONG_DELAY_MS);
542	>	}});
543	>	final Thread t = newStartedThread(new CheckedRunnable() {
544	>	public void realRun() throws InterruptedException {
545	>	TimeUnit tu = MILLISECONDS;
546	>	Thread.currentThread().interrupt();
547	>	try {
548	>	tu.timedJoin(s, LONG_DELAY_MS);
549	>	shouldThrow();
550	>	} catch (InterruptedException success) {}
551	>	assertFalse(Thread.interrupted());
552	>
553	>	pleaseInterrupt.countDown();
554	>	try {
555	>	tu.timedJoin(s, LONG_DELAY_MS);
556	>	shouldThrow();
557	>	} catch (InterruptedException success) {}
558	>	assertFalse(Thread.interrupted());
559	>	}});
560	>
561	>	await(pleaseInterrupt);
562	>	assertThreadBlocks(t, Thread.State.TIMED_WAITING);
563	>	t.interrupt();
564	>	awaitTermination(t);
565	>	s.interrupt();
566	>	awaitTermination(s);
567	>	}
568	>
569	>	/**
570	>	* timedSleep throws InterruptedException when interrupted
571	>	*/
572	>	public void testTimedSleep_Interruptible() {
573	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
574	>	Thread t = newStartedThread(new CheckedRunnable() {
575	>	public void realRun() throws InterruptedException {
576	>	TimeUnit tu = MILLISECONDS;
577	>	Thread.currentThread().interrupt();
578	>	try {
579	>	tu.sleep(LONG_DELAY_MS);
580	>	shouldThrow();
581	>	} catch (InterruptedException success) {}
582	>	assertFalse(Thread.interrupted());
583	>
584	>	pleaseInterrupt.countDown();
585	>	try {
586	>	tu.sleep(LONG_DELAY_MS);
587	>	shouldThrow();
588	>	} catch (InterruptedException success) {}
589	>	assertFalse(Thread.interrupted());
590	>	}});
591	>
592	>	await(pleaseInterrupt);
593	>	assertThreadBlocks(t, Thread.State.TIMED_WAITING);
594	>	t.interrupt();
595	>	awaitTermination(t);
596		}
597	+
598	+	/**
599	+	* a deserialized serialized unit is the same instance
600	+	*/
601	+	public void testSerialization() throws Exception {
602	+	for (TimeUnit x : TimeUnit.values())
603	+	assertSame(x, serialClone(x));
604	+	}
605	+
606		}

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