--- jsr166/src/test/tck/TimeUnitTest.java 2003/09/14 20:42:41 1.3 +++ jsr166/src/test/tck/TimeUnitTest.java 2011/05/28 12:13:08 1.21 @@ -1,134 +1,286 @@ /* - * Written by members of JCP JSR-166 Expert Group and released to the - * public domain. Use, modify, and redistribute this code in any way - * without acknowledgement. Other contributors include Andrew Wright, - * Jeffrey Hayes, Pat Fischer, Mike Judd. + * 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/publicdomain/zero/1.0/ + * 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()); + junit.textui.TestRunner.run(suite()); } - + public static Test suite() { - return new TestSuite(TimeUnitTest.class); + 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 < 10; ++t) { - assertEquals(t, - TimeUnit.SECONDS.convert(t, + 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(1000 * t, + assertEquals(t, + TimeUnit.SECONDS.convert(1000L*t, TimeUnit.MILLISECONDS)); - assertEquals(t, - TimeUnit.SECONDS.convert(1000000 * t, + assertEquals(t, + TimeUnit.SECONDS.convert(1000000L*t, TimeUnit.MICROSECONDS)); - assertEquals(t, - TimeUnit.SECONDS.convert(1000000000 * t, + assertEquals(t, + TimeUnit.SECONDS.convert(1000000000L*t, TimeUnit.NANOSECONDS)); - assertEquals(1000 * t, - TimeUnit.MILLISECONDS.convert(t, + + 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, + assertEquals(t, + TimeUnit.MILLISECONDS.convert(t, TimeUnit.MILLISECONDS)); - assertEquals(t, - TimeUnit.MILLISECONDS.convert(1000 * t, + assertEquals(t, + TimeUnit.MILLISECONDS.convert(1000L*t, TimeUnit.MICROSECONDS)); - assertEquals(t, - TimeUnit.MILLISECONDS.convert(1000000 * t, + assertEquals(t, + TimeUnit.MILLISECONDS.convert(1000000L*t, TimeUnit.NANOSECONDS)); - assertEquals(1000000 * t, - TimeUnit.MICROSECONDS.convert(t, + + 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(1000 * t, - TimeUnit.MICROSECONDS.convert(t, + assertEquals(1000L*t, + TimeUnit.MICROSECONDS.convert(t, TimeUnit.MILLISECONDS)); - assertEquals(t, - TimeUnit.MICROSECONDS.convert(t, + assertEquals(t, + TimeUnit.MICROSECONDS.convert(t, TimeUnit.MICROSECONDS)); - assertEquals(t, - TimeUnit.MICROSECONDS.convert(1000 * t, + assertEquals(t, + TimeUnit.MICROSECONDS.convert(1000L*t, TimeUnit.NANOSECONDS)); - assertEquals(1000000000 * t, - TimeUnit.NANOSECONDS.convert(t, + + 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(1000000 * t, - TimeUnit.NANOSECONDS.convert(t, + assertEquals(1000000L*t, + TimeUnit.NANOSECONDS.convert(t, TimeUnit.MILLISECONDS)); - assertEquals(1000 * t, - TimeUnit.NANOSECONDS.convert(t, + assertEquals(1000L*t, + TimeUnit.NANOSECONDS.convert(t, TimeUnit.MICROSECONDS)); - assertEquals(t, - TimeUnit.NANOSECONDS.convert(t, + 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 < 10; ++t) { - assertEquals(1000000000 * t, + 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(1000000 * t, + assertEquals(1000000L*t, TimeUnit.MILLISECONDS.toNanos(t)); - assertEquals(1000 * t, + assertEquals(1000L*t, TimeUnit.MICROSECONDS.toNanos(t)); - assertEquals(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 < 10; ++t) { - assertEquals(1000000 * t, + 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(1000 * t, + assertEquals(1000L*t, TimeUnit.MILLISECONDS.toMicros(t)); - assertEquals(t, + assertEquals(t, TimeUnit.MICROSECONDS.toMicros(t)); - assertEquals(t, - TimeUnit.NANOSECONDS.toMicros(t * 1000)); + 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 < 10; ++t) { - assertEquals(1000 * t, + 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, + assertEquals(t, TimeUnit.MILLISECONDS.toMillis(t)); - assertEquals(t, - TimeUnit.MICROSECONDS.toMillis(t * 1000)); - assertEquals(t, - TimeUnit.NANOSECONDS.toMillis(t * 1000000)); + 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 < 10; ++t) { - assertEquals(t, + 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)); + } + } - assertEquals(t, - TimeUnit.MILLISECONDS.toSeconds(t * 1000)); - assertEquals(t, - TimeUnit.MICROSECONDS.toSeconds(t * 1000000)); - assertEquals(t, - TimeUnit.NANOSECONDS.toSeconds(t * 1000000000)); + /** + * 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, @@ -136,170 +288,175 @@ public class TimeUnitTest extends JSR166 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)); - + assertEquals(Long.MAX_VALUE, + TimeUnit.MILLISECONDS.toNanos(Long.MAX_VALUE / 2)); + assertEquals(Long.MIN_VALUE, + TimeUnit.MILLISECONDS.toNanos(-Long.MAX_VALUE / 3)); } - + /** + * toString returns name of unit + */ public void testToString() { - String s = TimeUnit.SECONDS.toString(); - assertTrue(s.indexOf("econd") >= 0); + assertEquals("SECONDS", TimeUnit.SECONDS.toString()); } - /** - * Timed wait without holding lock throws - * IllegalMonitorStateException + * name returns name of unit + */ + public void testName() { + assertEquals("SECONDS", TimeUnit.SECONDS.name()); + } + + /** + * Timed wait without holding lock throws + * IllegalMonitorStateException */ public void testTimedWait_IllegalMonitorException() { - //created a new thread with anonymous runnable + Thread t = newStartedThread(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) {} + }}); - Thread t = new Thread(new Runnable() { - public void run() { - Object o = new Object(); - TimeUnit tu = TimeUnit.MILLISECONDS; - try { - tu.timedWait(o,LONG_DELAY_MS); - fail("should throw"); - } - catch (InterruptedException ie) { - fail("should not throw IE here"); - } - catch(IllegalMonitorStateException success) { - } - - } - }); - t.start(); - try { - Thread.sleep(SHORT_DELAY_MS); - t.interrupt(); - t.join(); - } catch(Exception e) { - fail("Unexpected exception"); - } + awaitTermination(t); } - + /** - * timedWait will throw InterruptedException. - * Thread t waits on timedWait while the main thread interrupts it. - * Note: This does not throw IllegalMonitorException since timeWait - * is synchronized on o - */ - public void testTimedWait() { - Thread t = new Thread(new Runnable() { - public void run() { - Object o = new Object(); - - TimeUnit tu = TimeUnit.MILLISECONDS; - try { - synchronized(o) { - tu.timedWait(o,MEDIUM_DELAY_MS); - } - fail("should throw"); - } - catch(InterruptedException success) {} - catch(IllegalMonitorStateException failure) { - fail("should not throw"); - } - } - }); - t.start(); - try { - Thread.sleep(SHORT_DELAY_MS); - t.interrupt(); - t.join(); - } catch(Exception e) { - fail("Unexpected exception"); - } + * timedWait throws InterruptedException when interrupted + */ + public void testTimedWait_Interruptible() { + final CountDownLatch pleaseInterrupt = new CountDownLatch(1); + Thread t = newStartedThread(new CheckedRunnable() { + public void realRun() throws InterruptedException { + Object o = new Object(); + TimeUnit tu = TimeUnit.MILLISECONDS; + + Thread.currentThread().interrupt(); + try { + synchronized (o) { + tu.timedWait(o, LONG_DELAY_MS); + } + shouldThrow(); + } catch (InterruptedException success) {} + assertFalse(Thread.interrupted()); + + pleaseInterrupt.countDown(); + try { + synchronized (o) { + tu.timedWait(o, LONG_DELAY_MS); + } + shouldThrow(); + } catch (InterruptedException success) {} + assertFalse(Thread.interrupted()); + }}); + + await(pleaseInterrupt); + assertThreadStaysAlive(t); + t.interrupt(); + awaitTermination(t); } - - + /** - * timedJoin will throw InterruptedException. - * Thread t waits on timedJoin while the main thread interrupts it. + * timedJoin throws InterruptedException when interrupted */ - public void testTimedJoin() { - Thread t = new Thread(new Runnable() { - public void run() { - TimeUnit tu = TimeUnit.MILLISECONDS; - try { - Thread s = new Thread(new Runnable() { - public void run() { - try{ - Thread.sleep(MEDIUM_DELAY_MS); - }catch(InterruptedException success){} - } - }); - s.start(); - tu.timedJoin(s,MEDIUM_DELAY_MS); - fail("should throw"); - } - catch(Exception e) {} - } - }); - t.start(); - try { - Thread.sleep(SHORT_DELAY_MS); - t.interrupt(); - t.join(); - } catch(Exception e) { - fail("Unexpected exception"); - } + public void testTimedJoin_Interruptible() { + final CountDownLatch pleaseInterrupt = new CountDownLatch(1); + final Thread s = newStartedThread(new CheckedInterruptedRunnable() { + public void realRun() throws InterruptedException { + Thread.sleep(LONG_DELAY_MS); + }}); + final Thread t = newStartedThread(new CheckedRunnable() { + public void realRun() throws InterruptedException { + TimeUnit tu = TimeUnit.MILLISECONDS; + Thread.currentThread().interrupt(); + try { + tu.timedJoin(s, LONG_DELAY_MS); + shouldThrow(); + } catch (InterruptedException success) {} + assertFalse(Thread.interrupted()); + + pleaseInterrupt.countDown(); + try { + tu.timedJoin(s, LONG_DELAY_MS); + shouldThrow(); + } catch (InterruptedException success) {} + assertFalse(Thread.interrupted()); + }}); + + await(pleaseInterrupt); + assertThreadStaysAlive(t); + t.interrupt(); + awaitTermination(t); + s.interrupt(); + awaitTermination(s); } - + /** - * timedSleep will throw InterruptedException. - * Thread t waits on timedSleep while the main thread interrupts it. + * timedSleep throws InterruptedException when interrupted */ - public void testTimedSleep() { - //created a new thread with anonymous runnable - - Thread t = new Thread(new Runnable() { - public void run() { - TimeUnit tu = TimeUnit.MILLISECONDS; - try { - tu.sleep(MEDIUM_DELAY_MS); - fail("should throw"); - } - catch(InterruptedException success) {} - } - }); - t.start(); - try { - Thread.sleep(SHORT_DELAY_MS); - t.interrupt(); - t.join(); - } catch(Exception e) { - fail("Unexpected exception"); - } + public void testTimedSleep_Interruptible() { + final CountDownLatch pleaseInterrupt = new CountDownLatch(1); + Thread t = newStartedThread(new CheckedRunnable() { + public void realRun() throws InterruptedException { + TimeUnit tu = TimeUnit.MILLISECONDS; + Thread.currentThread().interrupt(); + try { + tu.sleep(LONG_DELAY_MS); + shouldThrow(); + } catch (InterruptedException success) {} + assertFalse(Thread.interrupted()); + + pleaseInterrupt.countDown(); + try { + tu.sleep(LONG_DELAY_MS); + shouldThrow(); + } catch (InterruptedException success) {} + assertFalse(Thread.interrupted()); + }}); + + await(pleaseInterrupt); + assertThreadStaysAlive(t); + t.interrupt(); + awaitTermination(t); } - public void testSerialization() { + /** + * a deserialized serialized unit is the same instance + */ + public void testSerialization() throws Exception { TimeUnit q = TimeUnit.MILLISECONDS; - - try { - 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(); - - assertEquals(q.toString(), r.toString()); - } catch(Exception e){ - e.printStackTrace(); - fail("unexpected exception"); - } + assertSame(q, serialClone(q)); } }