test/tck/TimeUnitTest.java

/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/licenses/publicdomain
 * Other contributors include Andrew Wright, Jeffrey Hayes,
 * Pat Fisher, Mike Judd.
 */


import junit.framework.*;
import java.util.concurrent.*;
import java.io.*;

public class TimeUnitTest extends JSR166TestCase {
    public static void main(String[] args) {
        junit.textui.TestRunner.run(suite());
    }

    public static Test suite() {
        return new TestSuite(TimeUnitTest.class);
    }

    // (loops to 88888 check increments at all time divisions.)

    /**
     * convert correctly converts sample values across the units
     */
    public void testConvert() {
        for (long t = 0; t < 88888; ++t) {
            assertEquals(t*60*60*24,
                         TimeUnit.SECONDS.convert(t,
                                                  TimeUnit.DAYS));
            assertEquals(t*60*60,
                         TimeUnit.SECONDS.convert(t,
                                                  TimeUnit.HOURS));
            assertEquals(t*60,
                         TimeUnit.SECONDS.convert(t,
                                                  TimeUnit.MINUTES));
            assertEquals(t,
                         TimeUnit.SECONDS.convert(t,
                                                  TimeUnit.SECONDS));
            assertEquals(t,
                         TimeUnit.SECONDS.convert(1000L*t,
                                                  TimeUnit.MILLISECONDS));
            assertEquals(t,
                         TimeUnit.SECONDS.convert(1000000L*t,
                                                  TimeUnit.MICROSECONDS));
            assertEquals(t,
                         TimeUnit.SECONDS.convert(1000000000L*t,
                                                  TimeUnit.NANOSECONDS));


            assertEquals(1000L*t*60*60*24,
                         TimeUnit.MILLISECONDS.convert(t,
                                                  TimeUnit.DAYS));
            assertEquals(1000L*t*60*60,
                         TimeUnit.MILLISECONDS.convert(t,
                                                  TimeUnit.HOURS));
            assertEquals(1000L*t*60,
                         TimeUnit.MILLISECONDS.convert(t,
                                                  TimeUnit.MINUTES));
            assertEquals(1000L*t,
                         TimeUnit.MILLISECONDS.convert(t,
                                                  TimeUnit.SECONDS));
            assertEquals(t,
                         TimeUnit.MILLISECONDS.convert(t,
                                                  TimeUnit.MILLISECONDS));
            assertEquals(t,
                         TimeUnit.MILLISECONDS.convert(1000L*t,
                                                  TimeUnit.MICROSECONDS));
            assertEquals(t,
                         TimeUnit.MILLISECONDS.convert(1000000L*t,
                                                  TimeUnit.NANOSECONDS));

            assertEquals(1000000L*t*60*60*24,
                         TimeUnit.MICROSECONDS.convert(t,
                                                  TimeUnit.DAYS));
            assertEquals(1000000L*t*60*60,
                         TimeUnit.MICROSECONDS.convert(t,
                                                  TimeUnit.HOURS));
            assertEquals(1000000L*t*60,
                         TimeUnit.MICROSECONDS.convert(t,
                                                  TimeUnit.MINUTES));
            assertEquals(1000000L*t,
                         TimeUnit.MICROSECONDS.convert(t,
                                                  TimeUnit.SECONDS));
            assertEquals(1000L*t,
                         TimeUnit.MICROSECONDS.convert(t,
                                                  TimeUnit.MILLISECONDS));
            assertEquals(t,
                         TimeUnit.MICROSECONDS.convert(t,
                                                  TimeUnit.MICROSECONDS));
            assertEquals(t,
                         TimeUnit.MICROSECONDS.convert(1000L*t,
                                                  TimeUnit.NANOSECONDS));

            assertEquals(1000000000L*t*60*60*24,
                         TimeUnit.NANOSECONDS.convert(t,
                                                  TimeUnit.DAYS));
            assertEquals(1000000000L*t*60*60,
                         TimeUnit.NANOSECONDS.convert(t,
                                                  TimeUnit.HOURS));
            assertEquals(1000000000L*t*60,
                         TimeUnit.NANOSECONDS.convert(t,
                                                  TimeUnit.MINUTES));
            assertEquals(1000000000L*t,
                         TimeUnit.NANOSECONDS.convert(t,
                                                  TimeUnit.SECONDS));
            assertEquals(1000000L*t,
                         TimeUnit.NANOSECONDS.convert(t,
                                                  TimeUnit.MILLISECONDS));
            assertEquals(1000L*t,
                         TimeUnit.NANOSECONDS.convert(t,
                                                  TimeUnit.MICROSECONDS));
            assertEquals(t,
                         TimeUnit.NANOSECONDS.convert(t,
                                                  TimeUnit.NANOSECONDS));
        }
    }

    /**
     * toNanos correctly converts sample values in different units to
     * nanoseconds
     */
    public void testToNanos() {
        for (long t = 0; t < 88888; ++t) {
            assertEquals(t*1000000000L*60*60*24,
                         TimeUnit.DAYS.toNanos(t));
            assertEquals(t*1000000000L*60*60,
                         TimeUnit.HOURS.toNanos(t));
            assertEquals(t*1000000000L*60,
                         TimeUnit.MINUTES.toNanos(t));
            assertEquals(1000000000L*t,
                         TimeUnit.SECONDS.toNanos(t));
            assertEquals(1000000L*t,
                         TimeUnit.MILLISECONDS.toNanos(t));
            assertEquals(1000L*t,
                         TimeUnit.MICROSECONDS.toNanos(t));
            assertEquals(t,
                         TimeUnit.NANOSECONDS.toNanos(t));
        }
    }

    /**
     * toMicros correctly converts sample values in different units to
     * microseconds
     */
    public void testToMicros() {
        for (long t = 0; t < 88888; ++t) {
            assertEquals(t*1000000L*60*60*24,
                         TimeUnit.DAYS.toMicros(t));
            assertEquals(t*1000000L*60*60,
                         TimeUnit.HOURS.toMicros(t));
            assertEquals(t*1000000L*60,
                         TimeUnit.MINUTES.toMicros(t));
            assertEquals(1000000L*t,
                         TimeUnit.SECONDS.toMicros(t));
            assertEquals(1000L*t,
                         TimeUnit.MILLISECONDS.toMicros(t));
            assertEquals(t,
                         TimeUnit.MICROSECONDS.toMicros(t));
            assertEquals(t,
                         TimeUnit.NANOSECONDS.toMicros(t*1000L));
        }
    }

    /**
     * toMillis correctly converts sample values in different units to
     * milliseconds
     */
    public void testToMillis() {
        for (long t = 0; t < 88888; ++t) {
            assertEquals(t*1000L*60*60*24,
                         TimeUnit.DAYS.toMillis(t));
            assertEquals(t*1000L*60*60,
                         TimeUnit.HOURS.toMillis(t));
            assertEquals(t*1000L*60,
                         TimeUnit.MINUTES.toMillis(t));
            assertEquals(1000L*t,
                         TimeUnit.SECONDS.toMillis(t));
            assertEquals(t,
                         TimeUnit.MILLISECONDS.toMillis(t));
            assertEquals(t,
                         TimeUnit.MICROSECONDS.toMillis(t*1000L));
            assertEquals(t,
                         TimeUnit.NANOSECONDS.toMillis(t*1000000L));
        }
    }

    /**
     * toSeconds correctly converts sample values in different units to
     * seconds
     */
    public void testToSeconds() {
        for (long t = 0; t < 88888; ++t) {
            assertEquals(t*60*60*24,
                         TimeUnit.DAYS.toSeconds(t));
            assertEquals(t*60*60,
                         TimeUnit.HOURS.toSeconds(t));
            assertEquals(t*60,
                         TimeUnit.MINUTES.toSeconds(t));
            assertEquals(t,
                         TimeUnit.SECONDS.toSeconds(t));
            assertEquals(t,
                         TimeUnit.MILLISECONDS.toSeconds(t*1000L));
            assertEquals(t,
                         TimeUnit.MICROSECONDS.toSeconds(t*1000000L));
            assertEquals(t,
                         TimeUnit.NANOSECONDS.toSeconds(t*1000000000L));
        }
    }

    /**
     * toMinutes correctly converts sample values in different units to
     * minutes
     */
    public void testToMinutes() {
        for (long t = 0; t < 88888; ++t) {
            assertEquals(t*60*24,
                         TimeUnit.DAYS.toMinutes(t));
            assertEquals(t*60,
                         TimeUnit.HOURS.toMinutes(t));
            assertEquals(t,
                         TimeUnit.MINUTES.toMinutes(t));
            assertEquals(t,
                         TimeUnit.SECONDS.toMinutes(t*60));
            assertEquals(t,
                         TimeUnit.MILLISECONDS.toMinutes(t*1000L*60));
            assertEquals(t,
                         TimeUnit.MICROSECONDS.toMinutes(t*1000000L*60));
            assertEquals(t,
                         TimeUnit.NANOSECONDS.toMinutes(t*1000000000L*60));
        }
    }

    /**
     * toHours correctly converts sample values in different units to
     * hours
     */
    public void testToHours() {
        for (long t = 0; t < 88888; ++t) {
            assertEquals(t*24,
                         TimeUnit.DAYS.toHours(t));
            assertEquals(t,
                         TimeUnit.HOURS.toHours(t));
            assertEquals(t,
                         TimeUnit.MINUTES.toHours(t*60));
            assertEquals(t,
                         TimeUnit.SECONDS.toHours(t*60*60));
            assertEquals(t,
                         TimeUnit.MILLISECONDS.toHours(t*1000L*60*60));
            assertEquals(t,
                         TimeUnit.MICROSECONDS.toHours(t*1000000L*60*60));
            assertEquals(t,
                         TimeUnit.NANOSECONDS.toHours(t*1000000000L*60*60));
        }
    }

    /**
     * toDays correctly converts sample values in different units to
     * days
     */
    public void testToDays() {
        for (long t = 0; t < 88888; ++t) {
            assertEquals(t,
                         TimeUnit.DAYS.toDays(t));
            assertEquals(t,
                         TimeUnit.HOURS.toDays(t*24));
            assertEquals(t,
                         TimeUnit.MINUTES.toDays(t*60*24));
            assertEquals(t,
                         TimeUnit.SECONDS.toDays(t*60*60*24));
            assertEquals(t,
                         TimeUnit.MILLISECONDS.toDays(t*1000L*60*60*24));
            assertEquals(t,
                         TimeUnit.MICROSECONDS.toDays(t*1000000L*60*60*24));
            assertEquals(t,
                         TimeUnit.NANOSECONDS.toDays(t*1000000000L*60*60*24));
        }
    }


    /**
     * convert saturates positive too-large values to Long.MAX_VALUE
     * and negative to LONG.MIN_VALUE
     */
    public void testConvertSaturate() {
        assertEquals(Long.MAX_VALUE,
                     TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
                                                  TimeUnit.SECONDS));
        assertEquals(Long.MIN_VALUE,
                     TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
                                                  TimeUnit.SECONDS));
        assertEquals(Long.MAX_VALUE,
                     TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
                                                  TimeUnit.MINUTES));
        assertEquals(Long.MIN_VALUE,
                     TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
                                                  TimeUnit.MINUTES));
        assertEquals(Long.MAX_VALUE,
                     TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
                                                  TimeUnit.HOURS));
        assertEquals(Long.MIN_VALUE,
                     TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
                                                  TimeUnit.HOURS));
        assertEquals(Long.MAX_VALUE,
                     TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
                                                  TimeUnit.DAYS));
        assertEquals(Long.MIN_VALUE,
                     TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
                                                  TimeUnit.DAYS));

    }

    /**
     * toNanos saturates positive too-large values to Long.MAX_VALUE
     * and negative to LONG.MIN_VALUE
     */
    public void testToNanosSaturate() {
        assertEquals(Long.MAX_VALUE,
                     TimeUnit.MILLISECONDS.toNanos(Long.MAX_VALUE / 2));
        assertEquals(Long.MIN_VALUE,
                     TimeUnit.MILLISECONDS.toNanos(-Long.MAX_VALUE / 3));
    }


    /**
     * toString returns string containing common name of unit
     */
    public void testToString() {
        String s = TimeUnit.SECONDS.toString();
        assertTrue(s.indexOf("ECOND") >= 0);
    }


    /**
     *  Timed wait without holding lock throws
     *  IllegalMonitorStateException
     */
    public void testTimedWait_IllegalMonitorException() throws Exception {
        Thread t = new Thread(new CheckedRunnable() {
            public void realRun() throws InterruptedException {
                Object o = new Object();
                TimeUnit tu = TimeUnit.MILLISECONDS;
                try {
                    tu.timedWait(o,LONG_DELAY_MS);
                    threadShouldThrow();
                } catch (IllegalMonitorStateException success) {}}});

        t.start();
        Thread.sleep(SHORT_DELAY_MS);
        t.interrupt();
        t.join();
    }

    /**
     * timedWait throws InterruptedException when interrupted
     */
    public void testTimedWait() throws InterruptedException {
        Thread t = new Thread(new CheckedInterruptedRunnable() {
            public void realRun() throws InterruptedException {
                Object o = new Object();

                TimeUnit tu = TimeUnit.MILLISECONDS;
                synchronized(o) {
                    tu.timedWait(o,MEDIUM_DELAY_MS);
                }
            }});
        t.start();
        Thread.sleep(SHORT_DELAY_MS);
        t.interrupt();
        t.join();
    }


    /**
     * timedJoin throws InterruptedException when interrupted
     */
    public void testTimedJoin() throws InterruptedException {
        final Thread s = new Thread(new CheckedInterruptedRunnable() {
            public void realRun() throws InterruptedException {
                Thread.sleep(MEDIUM_DELAY_MS);
            }});
        final Thread t = new Thread(new CheckedInterruptedRunnable() {
            public void realRun() throws InterruptedException {
                TimeUnit tu = TimeUnit.MILLISECONDS;
                tu.timedJoin(s, MEDIUM_DELAY_MS);
            }});;
        s.start();
        t.start();
        Thread.sleep(SHORT_DELAY_MS);
        t.interrupt();
        t.join();
        s.interrupt();
        s.join();
    }

    /**
     *  timedSleep throws InterruptedException when interrupted
     */
    public void testTimedSleep() throws InterruptedException {
        Thread t = new Thread(new CheckedInterruptedRunnable() {
            public void realRun() throws InterruptedException {
                TimeUnit tu = TimeUnit.MILLISECONDS;
                tu.sleep(MEDIUM_DELAY_MS);
            }});

        t.start();
        Thread.sleep(SHORT_DELAY_MS);
        t.interrupt();
        t.join();
    }

    /**
     * a deserialized serialized unit is the same instance
     */
    public void testSerialization() throws Exception {
        TimeUnit q = TimeUnit.MILLISECONDS;

        ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
        ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
        out.writeObject(q);
        out.close();

        ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
        ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
        TimeUnit r = (TimeUnit)in.readObject();
        assertSame(q, r);
    }

}
Revision:	1.13
Committed:	Tue Nov 17 06:28:37 2009 UTC (14 years, 6 months ago) by jsr166
Branch:	MAIN
Changes since 1.12:	+65 -116 lines
Log Message:	nicer exception handling
#	User	Rev	Content
1	dl	1.1	/*
2	dl	1.6	* 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	jsr166	1.10	* Other contributors include Andrew Wright, Jeffrey Hayes,
6			* Pat Fisher, Mike Judd.
7	dl	1.1	*/
8
9
10			import junit.framework.*;
11			import java.util.concurrent.*;
12	dl	1.2	import java.io.*;
13	dl	1.1
14	dl	1.3	public class TimeUnitTest extends JSR166TestCase {
15	dl	1.1	public static void main(String[] args) {
16	jsr166	1.10	junit.textui.TestRunner.run(suite());
17	dl	1.1	}
18	jsr166	1.10
19	dl	1.1	public static Test suite() {
20			return new TestSuite(TimeUnitTest.class);
21			}
22
23	dl	1.9	// (loops to 88888 check increments at all time divisions.)
24
25	dl	1.4	/**
26	dl	1.9	* convert correctly converts sample values across the units
27	dl	1.4	*/
28	dl	1.1	public void testConvert() {
29	dl	1.9	for (long t = 0; t < 88888; ++t) {
30	jsr166	1.10	assertEquals(t6060*24,
31			TimeUnit.SECONDS.convert(t,
32	dl	1.9	TimeUnit.DAYS));
33	jsr166	1.10	assertEquals(t6060,
34			TimeUnit.SECONDS.convert(t,
35	dl	1.9	TimeUnit.HOURS));
36	jsr166	1.10	assertEquals(t*60,
37			TimeUnit.SECONDS.convert(t,
38	dl	1.9	TimeUnit.MINUTES));
39	jsr166	1.10	assertEquals(t,
40			TimeUnit.SECONDS.convert(t,
41	dl	1.1	TimeUnit.SECONDS));
42	jsr166	1.10	assertEquals(t,
43			TimeUnit.SECONDS.convert(1000L*t,
44	dl	1.1	TimeUnit.MILLISECONDS));
45	jsr166	1.10	assertEquals(t,
46			TimeUnit.SECONDS.convert(1000000L*t,
47	dl	1.1	TimeUnit.MICROSECONDS));
48	jsr166	1.10	assertEquals(t,
49			TimeUnit.SECONDS.convert(1000000000L*t,
50	dl	1.1	TimeUnit.NANOSECONDS));
51	dl	1.9
52
53	jsr166	1.10	assertEquals(1000Lt606024,
54			TimeUnit.MILLISECONDS.convert(t,
55	dl	1.9	TimeUnit.DAYS));
56	jsr166	1.10	assertEquals(1000Lt60*60,
57			TimeUnit.MILLISECONDS.convert(t,
58	dl	1.9	TimeUnit.HOURS));
59	jsr166	1.10	assertEquals(1000Lt60,
60			TimeUnit.MILLISECONDS.convert(t,
61	dl	1.9	TimeUnit.MINUTES));
62	jsr166	1.10	assertEquals(1000L*t,
63			TimeUnit.MILLISECONDS.convert(t,
64	dl	1.1	TimeUnit.SECONDS));
65	jsr166	1.10	assertEquals(t,
66			TimeUnit.MILLISECONDS.convert(t,
67	dl	1.1	TimeUnit.MILLISECONDS));
68	jsr166	1.10	assertEquals(t,
69			TimeUnit.MILLISECONDS.convert(1000L*t,
70	dl	1.1	TimeUnit.MICROSECONDS));
71	jsr166	1.10	assertEquals(t,
72			TimeUnit.MILLISECONDS.convert(1000000L*t,
73	dl	1.1	TimeUnit.NANOSECONDS));
74	dl	1.9
75	jsr166	1.10	assertEquals(1000000Lt606024,
76			TimeUnit.MICROSECONDS.convert(t,
77	dl	1.9	TimeUnit.DAYS));
78	jsr166	1.10	assertEquals(1000000Lt60*60,
79			TimeUnit.MICROSECONDS.convert(t,
80	dl	1.9	TimeUnit.HOURS));
81	jsr166	1.10	assertEquals(1000000Lt60,
82			TimeUnit.MICROSECONDS.convert(t,
83	dl	1.9	TimeUnit.MINUTES));
84	jsr166	1.10	assertEquals(1000000L*t,
85			TimeUnit.MICROSECONDS.convert(t,
86	dl	1.1	TimeUnit.SECONDS));
87	jsr166	1.10	assertEquals(1000L*t,
88			TimeUnit.MICROSECONDS.convert(t,
89	dl	1.1	TimeUnit.MILLISECONDS));
90	jsr166	1.10	assertEquals(t,
91			TimeUnit.MICROSECONDS.convert(t,
92	dl	1.1	TimeUnit.MICROSECONDS));
93	jsr166	1.10	assertEquals(t,
94			TimeUnit.MICROSECONDS.convert(1000L*t,
95	dl	1.1	TimeUnit.NANOSECONDS));
96	dl	1.9
97	jsr166	1.10	assertEquals(1000000000Lt606024,
98			TimeUnit.NANOSECONDS.convert(t,
99	dl	1.9	TimeUnit.DAYS));
100	jsr166	1.10	assertEquals(1000000000Lt60*60,
101			TimeUnit.NANOSECONDS.convert(t,
102	dl	1.9	TimeUnit.HOURS));
103	jsr166	1.10	assertEquals(1000000000Lt60,
104			TimeUnit.NANOSECONDS.convert(t,
105	dl	1.9	TimeUnit.MINUTES));
106	jsr166	1.10	assertEquals(1000000000L*t,
107			TimeUnit.NANOSECONDS.convert(t,
108	dl	1.1	TimeUnit.SECONDS));
109	jsr166	1.10	assertEquals(1000000L*t,
110			TimeUnit.NANOSECONDS.convert(t,
111	dl	1.1	TimeUnit.MILLISECONDS));
112	jsr166	1.10	assertEquals(1000L*t,
113			TimeUnit.NANOSECONDS.convert(t,
114	dl	1.1	TimeUnit.MICROSECONDS));
115	jsr166	1.10	assertEquals(t,
116			TimeUnit.NANOSECONDS.convert(t,
117	dl	1.1	TimeUnit.NANOSECONDS));
118			}
119			}
120
121	dl	1.4	/**
122	dl	1.5	* toNanos correctly converts sample values in different units to
123			* nanoseconds
124	dl	1.4	*/
125	dl	1.1	public void testToNanos() {
126	dl	1.9	for (long t = 0; t < 88888; ++t) {
127	jsr166	1.10	assertEquals(t1000000000L606024,
128	dl	1.9	TimeUnit.DAYS.toNanos(t));
129	jsr166	1.10	assertEquals(t1000000000L60*60,
130	dl	1.9	TimeUnit.HOURS.toNanos(t));
131	jsr166	1.10	assertEquals(t1000000000L60,
132	dl	1.9	TimeUnit.MINUTES.toNanos(t));
133	jsr166	1.10	assertEquals(1000000000L*t,
134	dl	1.1	TimeUnit.SECONDS.toNanos(t));
135	jsr166	1.10	assertEquals(1000000L*t,
136	dl	1.1	TimeUnit.MILLISECONDS.toNanos(t));
137	jsr166	1.10	assertEquals(1000L*t,
138	dl	1.1	TimeUnit.MICROSECONDS.toNanos(t));
139	jsr166	1.10	assertEquals(t,
140	dl	1.3	TimeUnit.NANOSECONDS.toNanos(t));
141			}
142			}
143
144	dl	1.4	/**
145	dl	1.5	* toMicros correctly converts sample values in different units to
146			* microseconds
147	dl	1.4	*/
148	dl	1.3	public void testToMicros() {
149	dl	1.9	for (long t = 0; t < 88888; ++t) {
150	jsr166	1.10	assertEquals(t1000000L606024,
151	dl	1.9	TimeUnit.DAYS.toMicros(t));
152	jsr166	1.10	assertEquals(t1000000L60*60,
153	dl	1.9	TimeUnit.HOURS.toMicros(t));
154	jsr166	1.10	assertEquals(t1000000L60,
155	dl	1.9	TimeUnit.MINUTES.toMicros(t));
156	jsr166	1.10	assertEquals(1000000L*t,
157	dl	1.3	TimeUnit.SECONDS.toMicros(t));
158	jsr166	1.10	assertEquals(1000L*t,
159	dl	1.3	TimeUnit.MILLISECONDS.toMicros(t));
160	jsr166	1.10	assertEquals(t,
161	dl	1.3	TimeUnit.MICROSECONDS.toMicros(t));
162	jsr166	1.10	assertEquals(t,
163	dl	1.9	TimeUnit.NANOSECONDS.toMicros(t*1000L));
164	dl	1.3	}
165			}
166
167	dl	1.4	/**
168	dl	1.5	* toMillis correctly converts sample values in different units to
169			* milliseconds
170	dl	1.4	*/
171	dl	1.3	public void testToMillis() {
172	dl	1.9	for (long t = 0; t < 88888; ++t) {
173	jsr166	1.10	assertEquals(t1000L606024,
174	dl	1.9	TimeUnit.DAYS.toMillis(t));
175	jsr166	1.10	assertEquals(t1000L60*60,
176	dl	1.9	TimeUnit.HOURS.toMillis(t));
177	jsr166	1.10	assertEquals(t1000L60,
178	dl	1.9	TimeUnit.MINUTES.toMillis(t));
179	jsr166	1.10	assertEquals(1000L*t,
180	dl	1.3	TimeUnit.SECONDS.toMillis(t));
181	jsr166	1.10	assertEquals(t,
182	dl	1.3	TimeUnit.MILLISECONDS.toMillis(t));
183	jsr166	1.10	assertEquals(t,
184	dl	1.9	TimeUnit.MICROSECONDS.toMillis(t*1000L));
185	jsr166	1.10	assertEquals(t,
186	dl	1.9	TimeUnit.NANOSECONDS.toMillis(t*1000000L));
187	dl	1.3	}
188			}
189
190	dl	1.4	/**
191	dl	1.5	* toSeconds correctly converts sample values in different units to
192			* seconds
193	dl	1.4	*/
194	dl	1.3	public void testToSeconds() {
195	dl	1.9	for (long t = 0; t < 88888; ++t) {
196	jsr166	1.10	assertEquals(t6060*24,
197	dl	1.9	TimeUnit.DAYS.toSeconds(t));
198	jsr166	1.10	assertEquals(t6060,
199	dl	1.9	TimeUnit.HOURS.toSeconds(t));
200	jsr166	1.10	assertEquals(t*60,
201	dl	1.9	TimeUnit.MINUTES.toSeconds(t));
202	jsr166	1.10	assertEquals(t,
203	dl	1.3	TimeUnit.SECONDS.toSeconds(t));
204	jsr166	1.10	assertEquals(t,
205	dl	1.9	TimeUnit.MILLISECONDS.toSeconds(t*1000L));
206	jsr166	1.10	assertEquals(t,
207	dl	1.9	TimeUnit.MICROSECONDS.toSeconds(t*1000000L));
208	jsr166	1.10	assertEquals(t,
209	dl	1.9	TimeUnit.NANOSECONDS.toSeconds(t*1000000000L));
210			}
211			}
212	dl	1.3
213	dl	1.9	/**
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	jsr166	1.10	assertEquals(t6024,
220	dl	1.9	TimeUnit.DAYS.toMinutes(t));
221	jsr166	1.10	assertEquals(t*60,
222	dl	1.9	TimeUnit.HOURS.toMinutes(t));
223	jsr166	1.10	assertEquals(t,
224	dl	1.9	TimeUnit.MINUTES.toMinutes(t));
225	jsr166	1.10	assertEquals(t,
226	dl	1.9	TimeUnit.SECONDS.toMinutes(t*60));
227	jsr166	1.10	assertEquals(t,
228	dl	1.9	TimeUnit.MILLISECONDS.toMinutes(t1000L60));
229	jsr166	1.10	assertEquals(t,
230	dl	1.9	TimeUnit.MICROSECONDS.toMinutes(t1000000L60));
231	jsr166	1.10	assertEquals(t,
232	dl	1.9	TimeUnit.NANOSECONDS.toMinutes(t1000000000L60));
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	jsr166	1.10	assertEquals(t*24,
243	dl	1.9	TimeUnit.DAYS.toHours(t));
244	jsr166	1.10	assertEquals(t,
245	dl	1.9	TimeUnit.HOURS.toHours(t));
246	jsr166	1.10	assertEquals(t,
247	dl	1.9	TimeUnit.MINUTES.toHours(t*60));
248	jsr166	1.10	assertEquals(t,
249	dl	1.9	TimeUnit.SECONDS.toHours(t6060));
250	jsr166	1.10	assertEquals(t,
251	dl	1.9	TimeUnit.MILLISECONDS.toHours(t1000L60*60));
252	jsr166	1.10	assertEquals(t,
253	dl	1.9	TimeUnit.MICROSECONDS.toHours(t1000000L60*60));
254	jsr166	1.10	assertEquals(t,
255	dl	1.9	TimeUnit.NANOSECONDS.toHours(t1000000000L60*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	jsr166	1.10	assertEquals(t,
266	dl	1.9	TimeUnit.DAYS.toDays(t));
267	jsr166	1.10	assertEquals(t,
268	dl	1.9	TimeUnit.HOURS.toDays(t*24));
269	jsr166	1.10	assertEquals(t,
270	dl	1.9	TimeUnit.MINUTES.toDays(t6024));
271	jsr166	1.10	assertEquals(t,
272	dl	1.9	TimeUnit.SECONDS.toDays(t6060*24));
273	jsr166	1.10	assertEquals(t,
274	dl	1.9	TimeUnit.MILLISECONDS.toDays(t1000L606024));
275	jsr166	1.10	assertEquals(t,
276	dl	1.9	TimeUnit.MICROSECONDS.toDays(t1000000L606024));
277	jsr166	1.10	assertEquals(t,
278	dl	1.9	TimeUnit.NANOSECONDS.toDays(t1000000000L606024));
279	dl	1.1	}
280			}
281
282
283	dl	1.4	/**
284	jsr166	1.10	* convert saturates positive too-large values to Long.MAX_VALUE
285	dl	1.5	* and negative to LONG.MIN_VALUE
286	dl	1.4	*/
287	dl	1.1	public void testConvertSaturate() {
288			assertEquals(Long.MAX_VALUE,
289			TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2,
290			TimeUnit.SECONDS));
291			assertEquals(Long.MIN_VALUE,
292			TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4,
293			TimeUnit.SECONDS));
294	dl	1.9	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	dl	1.1	}
314
315	dl	1.4	/**
316	jsr166	1.10	* toNanos saturates positive too-large values to Long.MAX_VALUE
317	dl	1.5	* and negative to LONG.MIN_VALUE
318	dl	1.4	*/
319	dl	1.1	public void testToNanosSaturate() {
320	jsr166	1.13	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	dl	1.1	}
325
326
327	dl	1.4	/**
328	dl	1.7	* toString returns string containing common name of unit
329	dl	1.4	*/
330	dl	1.1	public void testToString() {
331			String s = TimeUnit.SECONDS.toString();
332	dl	1.8	assertTrue(s.indexOf("ECOND") >= 0);
333	dl	1.1	}
334
335	jsr166	1.10
336	dl	1.1	/**
337	dl	1.3	* Timed wait without holding lock throws
338			* IllegalMonitorStateException
339	dl	1.1	*/
340	jsr166	1.13	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	dl	1.1
350			t.start();
351	jsr166	1.13	Thread.sleep(SHORT_DELAY_MS);
352			t.interrupt();
353			t.join();
354	dl	1.1	}
355	jsr166	1.10
356	dl	1.1	/**
357	dl	1.5	* timedWait throws InterruptedException when interrupted
358	dl	1.4	*/
359	jsr166	1.13	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	dl	1.1	t.start();
370	jsr166	1.13	Thread.sleep(SHORT_DELAY_MS);
371			t.interrupt();
372			t.join();
373	dl	1.1	}
374	jsr166	1.10
375
376	dl	1.1	/**
377	dl	1.5	* timedJoin throws InterruptedException when interrupted
378	dl	1.4	*/
379	jsr166	1.13	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	dl	1.1	t.start();
391	jsr166	1.13	Thread.sleep(SHORT_DELAY_MS);
392			t.interrupt();
393			t.join();
394			s.interrupt();
395			s.join();
396	dl	1.1	}
397	jsr166	1.10
398	dl	1.1	/**
399	dl	1.5	* timedSleep throws InterruptedException when interrupted
400	dl	1.4	*/
401	jsr166	1.13	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	dl	1.1
408			t.start();
409	jsr166	1.13	Thread.sleep(SHORT_DELAY_MS);
410			t.interrupt();
411			t.join();
412	dl	1.1	}
413	dl	1.2
414	dl	1.4	/**
415	jsr166	1.13	* a deserialized serialized unit is the same instance
416	dl	1.4	*/
417	jsr166	1.13	public void testSerialization() throws Exception {
418	dl	1.2	TimeUnit q = TimeUnit.MILLISECONDS;
419
420	jsr166	1.13	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	dl	1.2	}
430
431	dl	1.1	}