--- jsr166/src/test/tck/TimeUnitTest.java 2003/08/31 19:24:56 1.1 +++ jsr166/src/test/tck/TimeUnitTest.java 2013/09/24 16:48:52 1.23 @@ -1,244 +1,427 @@ /* - * 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.*; - -public class TimeUnitTest extends TestCase { - static public boolean DEBUG = false; - +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.TimeUnit; +import static java.util.concurrent.TimeUnit.*; +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, - TimeUnit.SECONDS)); - assertEquals(t, - TimeUnit.SECONDS.convert(1000 * t, - TimeUnit.MILLISECONDS)); - assertEquals(t, - TimeUnit.SECONDS.convert(1000000 * t, - TimeUnit.MICROSECONDS)); - assertEquals(t, - TimeUnit.SECONDS.convert(1000000000 * t, - TimeUnit.NANOSECONDS)); - assertEquals(1000 * t, - TimeUnit.MILLISECONDS.convert(t, - TimeUnit.SECONDS)); - assertEquals(t, - TimeUnit.MILLISECONDS.convert(t, - TimeUnit.MILLISECONDS)); - assertEquals(t, - TimeUnit.MILLISECONDS.convert(1000 * t, - TimeUnit.MICROSECONDS)); - assertEquals(t, - TimeUnit.MILLISECONDS.convert(1000000 * t, - TimeUnit.NANOSECONDS)); - assertEquals(1000000 * t, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.SECONDS)); - assertEquals(1000 * t, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.MILLISECONDS)); - assertEquals(t, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.MICROSECONDS)); - assertEquals(t, - TimeUnit.MICROSECONDS.convert(1000 * t, - TimeUnit.NANOSECONDS)); - assertEquals(1000000000 * t, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.SECONDS)); - assertEquals(1000000 * t, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.MILLISECONDS)); - assertEquals(1000 * t, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.MICROSECONDS)); - assertEquals(t, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.NANOSECONDS)); + for (long t = 0; t < 88888; ++t) { + assertEquals(t*60*60*24, + SECONDS.convert(t, DAYS)); + assertEquals(t*60*60, + SECONDS.convert(t, HOURS)); + assertEquals(t*60, + SECONDS.convert(t, MINUTES)); + assertEquals(t, + SECONDS.convert(t, SECONDS)); + assertEquals(t, + SECONDS.convert(1000L*t, MILLISECONDS)); + assertEquals(t, + SECONDS.convert(1000000L*t, MICROSECONDS)); + assertEquals(t, + SECONDS.convert(1000000000L*t, NANOSECONDS)); + + assertEquals(1000L*t*60*60*24, + MILLISECONDS.convert(t, DAYS)); + assertEquals(1000L*t*60*60, + MILLISECONDS.convert(t, HOURS)); + assertEquals(1000L*t*60, + MILLISECONDS.convert(t, MINUTES)); + assertEquals(1000L*t, + MILLISECONDS.convert(t, SECONDS)); + assertEquals(t, + MILLISECONDS.convert(t, MILLISECONDS)); + assertEquals(t, + MILLISECONDS.convert(1000L*t, MICROSECONDS)); + assertEquals(t, + MILLISECONDS.convert(1000000L*t, NANOSECONDS)); + + assertEquals(1000000L*t*60*60*24, + MICROSECONDS.convert(t, DAYS)); + assertEquals(1000000L*t*60*60, + MICROSECONDS.convert(t, HOURS)); + assertEquals(1000000L*t*60, + MICROSECONDS.convert(t, MINUTES)); + assertEquals(1000000L*t, + MICROSECONDS.convert(t, SECONDS)); + assertEquals(1000L*t, + MICROSECONDS.convert(t, MILLISECONDS)); + assertEquals(t, + MICROSECONDS.convert(t, MICROSECONDS)); + assertEquals(t, + MICROSECONDS.convert(1000L*t, NANOSECONDS)); + + assertEquals(1000000000L*t*60*60*24, + NANOSECONDS.convert(t, DAYS)); + assertEquals(1000000000L*t*60*60, + NANOSECONDS.convert(t, HOURS)); + assertEquals(1000000000L*t*60, + NANOSECONDS.convert(t, MINUTES)); + assertEquals(1000000000L*t, + NANOSECONDS.convert(t, SECONDS)); + assertEquals(1000000L*t, + NANOSECONDS.convert(t, MILLISECONDS)); + assertEquals(1000L*t, + NANOSECONDS.convert(t, MICROSECONDS)); + assertEquals(t, + NANOSECONDS.convert(t, NANOSECONDS)); } } + /** + * toNanos correctly converts sample values in different units to + * nanoseconds + */ public void testToNanos() { - for (long t = 0; t < 10; ++t) { - assertEquals(1000000000 * t, - TimeUnit.SECONDS.toNanos(t)); - - assertEquals(1000000 * t, - TimeUnit.MILLISECONDS.toNanos(t)); - assertEquals(1000 * t, - TimeUnit.MICROSECONDS.toNanos(t)); - assertEquals(t, - TimeUnit.SECONDS.NANOSECONDS.toNanos(t)); + for (long t = 0; t < 88888; ++t) { + assertEquals(t*1000000000L*60*60*24, + DAYS.toNanos(t)); + assertEquals(t*1000000000L*60*60, + HOURS.toNanos(t)); + assertEquals(t*1000000000L*60, + MINUTES.toNanos(t)); + assertEquals(1000000000L*t, + SECONDS.toNanos(t)); + assertEquals(1000000L*t, + MILLISECONDS.toNanos(t)); + assertEquals(1000L*t, + MICROSECONDS.toNanos(t)); + assertEquals(t, + 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, + DAYS.toMicros(t)); + assertEquals(t*1000000L*60*60, + HOURS.toMicros(t)); + assertEquals(t*1000000L*60, + MINUTES.toMicros(t)); + assertEquals(1000000L*t, + SECONDS.toMicros(t)); + assertEquals(1000L*t, + MILLISECONDS.toMicros(t)); + assertEquals(t, + MICROSECONDS.toMicros(t)); + assertEquals(t, + 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, + DAYS.toMillis(t)); + assertEquals(t*1000L*60*60, + HOURS.toMillis(t)); + assertEquals(t*1000L*60, + MINUTES.toMillis(t)); + assertEquals(1000L*t, + SECONDS.toMillis(t)); + assertEquals(t, + MILLISECONDS.toMillis(t)); + assertEquals(t, + MICROSECONDS.toMillis(t*1000L)); + assertEquals(t, + 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, + DAYS.toSeconds(t)); + assertEquals(t*60*60, + HOURS.toSeconds(t)); + assertEquals(t*60, + MINUTES.toSeconds(t)); + assertEquals(t, + SECONDS.toSeconds(t)); + assertEquals(t, + MILLISECONDS.toSeconds(t*1000L)); + assertEquals(t, + MICROSECONDS.toSeconds(t*1000000L)); + assertEquals(t, + 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, + DAYS.toMinutes(t)); + assertEquals(t*60, + HOURS.toMinutes(t)); + assertEquals(t, + MINUTES.toMinutes(t)); + assertEquals(t, + SECONDS.toMinutes(t*60)); + assertEquals(t, + MILLISECONDS.toMinutes(t*1000L*60)); + assertEquals(t, + MICROSECONDS.toMinutes(t*1000000L*60)); + assertEquals(t, + 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, + DAYS.toHours(t)); + assertEquals(t, + HOURS.toHours(t)); + assertEquals(t, + MINUTES.toHours(t*60)); + assertEquals(t, + SECONDS.toHours(t*60*60)); + assertEquals(t, + MILLISECONDS.toHours(t*1000L*60*60)); + assertEquals(t, + MICROSECONDS.toHours(t*1000000L*60*60)); + assertEquals(t, + 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, + DAYS.toDays(t)); + assertEquals(t, + HOURS.toDays(t*24)); + assertEquals(t, + MINUTES.toDays(t*60*24)); + assertEquals(t, + SECONDS.toDays(t*60*60*24)); + assertEquals(t, + MILLISECONDS.toDays(t*1000L*60*60*24)); + assertEquals(t, + MICROSECONDS.toDays(t*1000000L*60*60*24)); + assertEquals(t, + 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)); + NANOSECONDS.convert(Long.MAX_VALUE / 2, SECONDS)); assertEquals(Long.MIN_VALUE, - TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4, - TimeUnit.SECONDS)); - + NANOSECONDS.convert(-Long.MAX_VALUE / 4, SECONDS)); + assertEquals(Long.MAX_VALUE, + NANOSECONDS.convert(Long.MAX_VALUE / 2, MINUTES)); + assertEquals(Long.MIN_VALUE, + NANOSECONDS.convert(-Long.MAX_VALUE / 4, MINUTES)); + assertEquals(Long.MAX_VALUE, + NANOSECONDS.convert(Long.MAX_VALUE / 2, HOURS)); + assertEquals(Long.MIN_VALUE, + NANOSECONDS.convert(-Long.MAX_VALUE / 4, HOURS)); + assertEquals(Long.MAX_VALUE, + NANOSECONDS.convert(Long.MAX_VALUE / 2, DAYS)); + assertEquals(Long.MIN_VALUE, + NANOSECONDS.convert(-Long.MAX_VALUE / 4, 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, + MILLISECONDS.toNanos(Long.MAX_VALUE / 2)); + assertEquals(Long.MIN_VALUE, + 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", SECONDS.toString()); + } + + /** + * name returns name of unit + */ + public void testName() { + assertEquals("SECONDS", SECONDS.name()); } - // Exception tests - /** - * This test specifically to catch the unreported exception + * Timed wait without holding lock throws + * IllegalMonitorStateException */ - public void testTimedWaitForUnreportedIllegalMonitorException() { - //created a new thread with anonymous runnable + public void testTimedWait_IllegalMonitorException() { + Thread t = newStartedThread(new CheckedRunnable() { + public void realRun() throws InterruptedException { + Object o = new Object(); + TimeUnit tu = MILLISECONDS; + + try { + tu.timedWait(o, LONG_DELAY_MS); + threadShouldThrow(); + } catch (IllegalMonitorStateException success) {} + }}); + + awaitTermination(t); + } - Thread t = new Thread(new Runnable() { - public void run() { - Object o = new Object(); - TimeUnit tu = TimeUnit.MILLISECONDS; - try { - tu.timedWait(o,40000); - fail("should throw"); + /** + * 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 = MILLISECONDS; + + Thread.currentThread().interrupt(); + try { + synchronized (o) { + tu.timedWait(o, LONG_DELAY_MS); } - catch (InterruptedException ie) { - fail("should not throw IE here"); - } - catch(IllegalMonitorStateException success) { + shouldThrow(); + } catch (InterruptedException success) {} + assertFalse(Thread.interrupted()); + + pleaseInterrupt.countDown(); + try { + synchronized (o) { + tu.timedWait(o, LONG_DELAY_MS); } - - } - }); - t.start(); - try { - Thread.sleep(100); - t.interrupt(); - t.join(); - } catch(Exception e) { - fail("Unexpected exception"); - } - } - - /** - * Test to verify that 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,1000); - } - fail("should throw"); - } - catch(InterruptedException success) {} - catch(IllegalMonitorStateException failure) { - fail("should not throw"); - } - } - }); - t.start(); - try { - Thread.sleep(100); - t.interrupt(); - t.join(); - } catch(Exception e) { - fail("Unexpected exception"); - } - } - - - /** - * Test to verify that timedJoin will throw InterruptedException. - * Thread t waits on timedJoin while the main thread interrupts it. - */ - 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(1000); - }catch(InterruptedException success){} - } - }); - s.start(); - tu.timedJoin(s,1000); - fail("should throw"); - } - catch(Exception e) {} - } - }); - t.start(); - try { - Thread.sleep(100); - t.interrupt(); - t.join(); - } catch(Exception e) { - fail("Unexpected exception"); - } - } - - /** - * Test to verify that timedSleep will throw InterruptedException. - * Thread t waits on timedSleep while the main thread interrupts it. - */ - 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(1000); - fail("should throw"); - } - catch(InterruptedException success) {} - } - }); - t.start(); - try { - Thread.sleep(100); - t.interrupt(); - t.join(); - } catch(Exception e) { - fail("Unexpected exception"); - } + shouldThrow(); + } catch (InterruptedException success) {} + assertFalse(Thread.interrupted()); + }}); + + await(pleaseInterrupt); + assertThreadStaysAlive(t); + t.interrupt(); + awaitTermination(t); + } + + /** + * timedJoin throws InterruptedException when interrupted + */ + 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 = 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 throws InterruptedException when interrupted + */ + public void testTimedSleep_Interruptible() { + final CountDownLatch pleaseInterrupt = new CountDownLatch(1); + Thread t = newStartedThread(new CheckedRunnable() { + public void realRun() throws InterruptedException { + TimeUnit tu = 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); + } + + /** + * a deserialized serialized unit is the same instance + */ + public void testSerialization() throws Exception { + TimeUnit x = MILLISECONDS; + assertSame(x, serialClone(x)); + } + }