--- jsr166/src/test/tck/TimeUnitTest.java 2010/09/16 03:57:13 1.16 +++ jsr166/src/test/tck/TimeUnitTest.java 2016/03/25 04:53:28 1.29 @@ -1,19 +1,29 @@ /* * 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 + * http://creativecommons.org/publicdomain/zero/1.0/ * Other contributors include Andrew Wright, Jeffrey Hayes, * Pat Fisher, Mike Judd. */ +import static java.util.concurrent.TimeUnit.DAYS; +import static java.util.concurrent.TimeUnit.HOURS; +import static java.util.concurrent.TimeUnit.MICROSECONDS; +import static java.util.concurrent.TimeUnit.MILLISECONDS; +import static java.util.concurrent.TimeUnit.MINUTES; +import static java.util.concurrent.TimeUnit.NANOSECONDS; +import static java.util.concurrent.TimeUnit.SECONDS; + +import java.time.temporal.ChronoUnit; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.TimeUnit; -import junit.framework.*; -import java.util.concurrent.*; -import java.io.*; +import junit.framework.Test; +import junit.framework.TestSuite; public class TimeUnitTest extends JSR166TestCase { public static void main(String[] args) { - junit.textui.TestRunner.run(suite()); + main(suite(), args); } public static Test suite() { @@ -28,93 +38,73 @@ public class TimeUnitTest extends JSR166 public void testConvert() { for (long t = 0; t < 88888; ++t) { assertEquals(t*60*60*24, - TimeUnit.SECONDS.convert(t, - TimeUnit.DAYS)); + SECONDS.convert(t, DAYS)); assertEquals(t*60*60, - TimeUnit.SECONDS.convert(t, - TimeUnit.HOURS)); + SECONDS.convert(t, HOURS)); assertEquals(t*60, - TimeUnit.SECONDS.convert(t, - TimeUnit.MINUTES)); + SECONDS.convert(t, MINUTES)); assertEquals(t, - TimeUnit.SECONDS.convert(t, - TimeUnit.SECONDS)); + SECONDS.convert(t, SECONDS)); assertEquals(t, - TimeUnit.SECONDS.convert(1000L*t, - TimeUnit.MILLISECONDS)); + SECONDS.convert(1000L*t, MILLISECONDS)); assertEquals(t, - TimeUnit.SECONDS.convert(1000000L*t, - TimeUnit.MICROSECONDS)); + SECONDS.convert(1000000L*t, MICROSECONDS)); assertEquals(t, - TimeUnit.SECONDS.convert(1000000000L*t, - TimeUnit.NANOSECONDS)); - + SECONDS.convert(1000000000L*t, NANOSECONDS)); assertEquals(1000L*t*60*60*24, - TimeUnit.MILLISECONDS.convert(t, - TimeUnit.DAYS)); + MILLISECONDS.convert(t, DAYS)); assertEquals(1000L*t*60*60, - TimeUnit.MILLISECONDS.convert(t, - TimeUnit.HOURS)); + MILLISECONDS.convert(t, HOURS)); assertEquals(1000L*t*60, - TimeUnit.MILLISECONDS.convert(t, - TimeUnit.MINUTES)); + MILLISECONDS.convert(t, MINUTES)); assertEquals(1000L*t, - TimeUnit.MILLISECONDS.convert(t, - TimeUnit.SECONDS)); + MILLISECONDS.convert(t, SECONDS)); assertEquals(t, - TimeUnit.MILLISECONDS.convert(t, - TimeUnit.MILLISECONDS)); + MILLISECONDS.convert(t, MILLISECONDS)); assertEquals(t, - TimeUnit.MILLISECONDS.convert(1000L*t, - TimeUnit.MICROSECONDS)); + MILLISECONDS.convert(1000L*t, MICROSECONDS)); assertEquals(t, - TimeUnit.MILLISECONDS.convert(1000000L*t, - TimeUnit.NANOSECONDS)); + MILLISECONDS.convert(1000000L*t, NANOSECONDS)); assertEquals(1000000L*t*60*60*24, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.DAYS)); + MICROSECONDS.convert(t, DAYS)); assertEquals(1000000L*t*60*60, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.HOURS)); + MICROSECONDS.convert(t, HOURS)); assertEquals(1000000L*t*60, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.MINUTES)); + MICROSECONDS.convert(t, MINUTES)); assertEquals(1000000L*t, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.SECONDS)); + MICROSECONDS.convert(t, SECONDS)); assertEquals(1000L*t, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.MILLISECONDS)); + MICROSECONDS.convert(t, MILLISECONDS)); assertEquals(t, - TimeUnit.MICROSECONDS.convert(t, - TimeUnit.MICROSECONDS)); + MICROSECONDS.convert(t, MICROSECONDS)); assertEquals(t, - TimeUnit.MICROSECONDS.convert(1000L*t, - TimeUnit.NANOSECONDS)); + MICROSECONDS.convert(1000L*t, NANOSECONDS)); assertEquals(1000000000L*t*60*60*24, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.DAYS)); + NANOSECONDS.convert(t, DAYS)); assertEquals(1000000000L*t*60*60, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.HOURS)); + NANOSECONDS.convert(t, HOURS)); assertEquals(1000000000L*t*60, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.MINUTES)); + NANOSECONDS.convert(t, MINUTES)); assertEquals(1000000000L*t, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.SECONDS)); + NANOSECONDS.convert(t, SECONDS)); assertEquals(1000000L*t, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.MILLISECONDS)); + NANOSECONDS.convert(t, MILLISECONDS)); assertEquals(1000L*t, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.MICROSECONDS)); + NANOSECONDS.convert(t, MICROSECONDS)); assertEquals(t, - TimeUnit.NANOSECONDS.convert(t, - TimeUnit.NANOSECONDS)); + NANOSECONDS.convert(t, NANOSECONDS)); + } + + for (TimeUnit x : TimeUnit.values()) { + long[] zs = { + 0, 1, -1, + Integer.MAX_VALUE, Integer.MIN_VALUE, + Long.MAX_VALUE, Long.MIN_VALUE, + }; + for (long z : zs) assertEquals(z, x.convert(z, x)); } } @@ -125,19 +115,19 @@ public class TimeUnitTest extends JSR166 public void testToNanos() { for (long t = 0; t < 88888; ++t) { assertEquals(t*1000000000L*60*60*24, - TimeUnit.DAYS.toNanos(t)); + DAYS.toNanos(t)); assertEquals(t*1000000000L*60*60, - TimeUnit.HOURS.toNanos(t)); + HOURS.toNanos(t)); assertEquals(t*1000000000L*60, - TimeUnit.MINUTES.toNanos(t)); + MINUTES.toNanos(t)); assertEquals(1000000000L*t, - TimeUnit.SECONDS.toNanos(t)); + SECONDS.toNanos(t)); assertEquals(1000000L*t, - TimeUnit.MILLISECONDS.toNanos(t)); + MILLISECONDS.toNanos(t)); assertEquals(1000L*t, - TimeUnit.MICROSECONDS.toNanos(t)); + MICROSECONDS.toNanos(t)); assertEquals(t, - TimeUnit.NANOSECONDS.toNanos(t)); + NANOSECONDS.toNanos(t)); } } @@ -148,19 +138,19 @@ public class TimeUnitTest extends JSR166 public void testToMicros() { for (long t = 0; t < 88888; ++t) { assertEquals(t*1000000L*60*60*24, - TimeUnit.DAYS.toMicros(t)); + DAYS.toMicros(t)); assertEquals(t*1000000L*60*60, - TimeUnit.HOURS.toMicros(t)); + HOURS.toMicros(t)); assertEquals(t*1000000L*60, - TimeUnit.MINUTES.toMicros(t)); + MINUTES.toMicros(t)); assertEquals(1000000L*t, - TimeUnit.SECONDS.toMicros(t)); + SECONDS.toMicros(t)); assertEquals(1000L*t, - TimeUnit.MILLISECONDS.toMicros(t)); + MILLISECONDS.toMicros(t)); assertEquals(t, - TimeUnit.MICROSECONDS.toMicros(t)); + MICROSECONDS.toMicros(t)); assertEquals(t, - TimeUnit.NANOSECONDS.toMicros(t*1000L)); + NANOSECONDS.toMicros(t*1000L)); } } @@ -171,19 +161,19 @@ public class TimeUnitTest extends JSR166 public void testToMillis() { for (long t = 0; t < 88888; ++t) { assertEquals(t*1000L*60*60*24, - TimeUnit.DAYS.toMillis(t)); + DAYS.toMillis(t)); assertEquals(t*1000L*60*60, - TimeUnit.HOURS.toMillis(t)); + HOURS.toMillis(t)); assertEquals(t*1000L*60, - TimeUnit.MINUTES.toMillis(t)); + MINUTES.toMillis(t)); assertEquals(1000L*t, - TimeUnit.SECONDS.toMillis(t)); + SECONDS.toMillis(t)); assertEquals(t, - TimeUnit.MILLISECONDS.toMillis(t)); + MILLISECONDS.toMillis(t)); assertEquals(t, - TimeUnit.MICROSECONDS.toMillis(t*1000L)); + MICROSECONDS.toMillis(t*1000L)); assertEquals(t, - TimeUnit.NANOSECONDS.toMillis(t*1000000L)); + NANOSECONDS.toMillis(t*1000000L)); } } @@ -194,19 +184,19 @@ public class TimeUnitTest extends JSR166 public void testToSeconds() { for (long t = 0; t < 88888; ++t) { assertEquals(t*60*60*24, - TimeUnit.DAYS.toSeconds(t)); + DAYS.toSeconds(t)); assertEquals(t*60*60, - TimeUnit.HOURS.toSeconds(t)); + HOURS.toSeconds(t)); assertEquals(t*60, - TimeUnit.MINUTES.toSeconds(t)); + MINUTES.toSeconds(t)); assertEquals(t, - TimeUnit.SECONDS.toSeconds(t)); + SECONDS.toSeconds(t)); assertEquals(t, - TimeUnit.MILLISECONDS.toSeconds(t*1000L)); + MILLISECONDS.toSeconds(t*1000L)); assertEquals(t, - TimeUnit.MICROSECONDS.toSeconds(t*1000000L)); + MICROSECONDS.toSeconds(t*1000000L)); assertEquals(t, - TimeUnit.NANOSECONDS.toSeconds(t*1000000000L)); + NANOSECONDS.toSeconds(t*1000000000L)); } } @@ -217,19 +207,19 @@ public class TimeUnitTest extends JSR166 public void testToMinutes() { for (long t = 0; t < 88888; ++t) { assertEquals(t*60*24, - TimeUnit.DAYS.toMinutes(t)); + DAYS.toMinutes(t)); assertEquals(t*60, - TimeUnit.HOURS.toMinutes(t)); + HOURS.toMinutes(t)); assertEquals(t, - TimeUnit.MINUTES.toMinutes(t)); + MINUTES.toMinutes(t)); assertEquals(t, - TimeUnit.SECONDS.toMinutes(t*60)); + SECONDS.toMinutes(t*60)); assertEquals(t, - TimeUnit.MILLISECONDS.toMinutes(t*1000L*60)); + MILLISECONDS.toMinutes(t*1000L*60)); assertEquals(t, - TimeUnit.MICROSECONDS.toMinutes(t*1000000L*60)); + MICROSECONDS.toMinutes(t*1000000L*60)); assertEquals(t, - TimeUnit.NANOSECONDS.toMinutes(t*1000000000L*60)); + NANOSECONDS.toMinutes(t*1000000000L*60)); } } @@ -240,19 +230,19 @@ public class TimeUnitTest extends JSR166 public void testToHours() { for (long t = 0; t < 88888; ++t) { assertEquals(t*24, - TimeUnit.DAYS.toHours(t)); + DAYS.toHours(t)); assertEquals(t, - TimeUnit.HOURS.toHours(t)); + HOURS.toHours(t)); assertEquals(t, - TimeUnit.MINUTES.toHours(t*60)); + MINUTES.toHours(t*60)); assertEquals(t, - TimeUnit.SECONDS.toHours(t*60*60)); + SECONDS.toHours(t*60*60)); assertEquals(t, - TimeUnit.MILLISECONDS.toHours(t*1000L*60*60)); + MILLISECONDS.toHours(t*1000L*60*60)); assertEquals(t, - TimeUnit.MICROSECONDS.toHours(t*1000000L*60*60)); + MICROSECONDS.toHours(t*1000000L*60*60)); assertEquals(t, - TimeUnit.NANOSECONDS.toHours(t*1000000000L*60*60)); + NANOSECONDS.toHours(t*1000000000L*60*60)); } } @@ -263,52 +253,64 @@ public class TimeUnitTest extends JSR166 public void testToDays() { for (long t = 0; t < 88888; ++t) { assertEquals(t, - TimeUnit.DAYS.toDays(t)); + DAYS.toDays(t)); assertEquals(t, - TimeUnit.HOURS.toDays(t*24)); + HOURS.toDays(t*24)); assertEquals(t, - TimeUnit.MINUTES.toDays(t*60*24)); + MINUTES.toDays(t*60*24)); assertEquals(t, - TimeUnit.SECONDS.toDays(t*60*60*24)); + SECONDS.toDays(t*60*60*24)); assertEquals(t, - TimeUnit.MILLISECONDS.toDays(t*1000L*60*60*24)); + MILLISECONDS.toDays(t*1000L*60*60*24)); assertEquals(t, - TimeUnit.MICROSECONDS.toDays(t*1000000L*60*60*24)); + MICROSECONDS.toDays(t*1000000L*60*60*24)); assertEquals(t, - TimeUnit.NANOSECONDS.toDays(t*1000000000L*60*60*24)); + 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, - TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2, - TimeUnit.MINUTES)); + NANOSECONDS.convert(Long.MAX_VALUE / 2, MINUTES)); assertEquals(Long.MIN_VALUE, - TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4, - TimeUnit.MINUTES)); + NANOSECONDS.convert(-Long.MAX_VALUE / 4, MINUTES)); assertEquals(Long.MAX_VALUE, - TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2, - TimeUnit.HOURS)); + NANOSECONDS.convert(Long.MAX_VALUE / 2, HOURS)); assertEquals(Long.MIN_VALUE, - TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4, - TimeUnit.HOURS)); + NANOSECONDS.convert(-Long.MAX_VALUE / 4, HOURS)); assertEquals(Long.MAX_VALUE, - TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2, - TimeUnit.DAYS)); + NANOSECONDS.convert(Long.MAX_VALUE / 2, DAYS)); assertEquals(Long.MIN_VALUE, - TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4, - TimeUnit.DAYS)); + NANOSECONDS.convert(-Long.MAX_VALUE / 4, DAYS)); + + for (TimeUnit x : TimeUnit.values()) + for (TimeUnit y : TimeUnit.values()) { + long ratio = x.toNanos(1) / y.toNanos(1); + if (ratio >= 1) { + assertEquals(ratio, y.convert(1, x)); + assertEquals(1, x.convert(ratio, y)); + long max = Long.MAX_VALUE/ratio; + assertEquals(max * ratio, y.convert(max, x)); + assertEquals(-max * ratio, y.convert(-max, x)); + assertEquals(max, x.convert(max * ratio, y)); + assertEquals(-max, x.convert(-max * ratio, y)); + if (max < Long.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, y.convert(max + 1, x)); + assertEquals(Long.MIN_VALUE, y.convert(-max - 1, x)); + assertEquals(Long.MIN_VALUE, y.convert(Long.MIN_VALUE + 1, x)); + } + assertEquals(Long.MAX_VALUE, y.convert(Long.MAX_VALUE, x)); + assertEquals(Long.MIN_VALUE, y.convert(Long.MIN_VALUE, x)); + } + } } /** @@ -317,114 +319,334 @@ public class TimeUnitTest extends JSR166 */ public void testToNanosSaturate() { assertEquals(Long.MAX_VALUE, - TimeUnit.MILLISECONDS.toNanos(Long.MAX_VALUE / 2)); + MILLISECONDS.toNanos(Long.MAX_VALUE / 2)); assertEquals(Long.MIN_VALUE, - TimeUnit.MILLISECONDS.toNanos(-Long.MAX_VALUE / 3)); + MILLISECONDS.toNanos(-Long.MAX_VALUE / 3)); + + for (TimeUnit x : TimeUnit.values()) { + long ratio = x.toNanos(1) / NANOSECONDS.toNanos(1); + if (ratio >= 1) { + long max = Long.MAX_VALUE/ratio; + for (long z : new long[] {0, 1, -1, max, -max}) + assertEquals(z * ratio, x.toNanos(z)); + if (max < Long.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toNanos(max + 1)); + assertEquals(Long.MIN_VALUE, x.toNanos(-max - 1)); + assertEquals(Long.MIN_VALUE, x.toNanos(Long.MIN_VALUE + 1)); + } + assertEquals(Long.MAX_VALUE, x.toNanos(Long.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toNanos(Long.MIN_VALUE)); + if (max < Integer.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toNanos(Integer.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toNanos(Integer.MIN_VALUE)); + } + } + } } + /** + * toMicros saturates positive too-large values to Long.MAX_VALUE + * and negative to LONG.MIN_VALUE + */ + public void testToMicrosSaturate() { + for (TimeUnit x : TimeUnit.values()) { + long ratio = x.toNanos(1) / MICROSECONDS.toNanos(1); + if (ratio >= 1) { + long max = Long.MAX_VALUE/ratio; + for (long z : new long[] {0, 1, -1, max, -max}) + assertEquals(z * ratio, x.toMicros(z)); + if (max < Long.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toMicros(max + 1)); + assertEquals(Long.MIN_VALUE, x.toMicros(-max - 1)); + assertEquals(Long.MIN_VALUE, x.toMicros(Long.MIN_VALUE + 1)); + } + assertEquals(Long.MAX_VALUE, x.toMicros(Long.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toMicros(Long.MIN_VALUE)); + if (max < Integer.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toMicros(Integer.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toMicros(Integer.MIN_VALUE)); + } + } + } + } /** - * toString returns string containing common name of unit + * toMillis saturates positive too-large values to Long.MAX_VALUE + * and negative to LONG.MIN_VALUE + */ + public void testToMillisSaturate() { + for (TimeUnit x : TimeUnit.values()) { + long ratio = x.toNanos(1) / MILLISECONDS.toNanos(1); + if (ratio >= 1) { + long max = Long.MAX_VALUE/ratio; + for (long z : new long[] {0, 1, -1, max, -max}) + assertEquals(z * ratio, x.toMillis(z)); + if (max < Long.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toMillis(max + 1)); + assertEquals(Long.MIN_VALUE, x.toMillis(-max - 1)); + assertEquals(Long.MIN_VALUE, x.toMillis(Long.MIN_VALUE + 1)); + } + assertEquals(Long.MAX_VALUE, x.toMillis(Long.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toMillis(Long.MIN_VALUE)); + if (max < Integer.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toMillis(Integer.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toMillis(Integer.MIN_VALUE)); + } + } + } + } + + /** + * toSeconds saturates positive too-large values to Long.MAX_VALUE + * and negative to LONG.MIN_VALUE + */ + public void testToSecondsSaturate() { + for (TimeUnit x : TimeUnit.values()) { + long ratio = x.toNanos(1) / SECONDS.toNanos(1); + if (ratio >= 1) { + long max = Long.MAX_VALUE/ratio; + for (long z : new long[] {0, 1, -1, max, -max}) + assertEquals(z * ratio, x.toSeconds(z)); + if (max < Long.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toSeconds(max + 1)); + assertEquals(Long.MIN_VALUE, x.toSeconds(-max - 1)); + assertEquals(Long.MIN_VALUE, x.toSeconds(Long.MIN_VALUE + 1)); + } + assertEquals(Long.MAX_VALUE, x.toSeconds(Long.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toSeconds(Long.MIN_VALUE)); + if (max < Integer.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toSeconds(Integer.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toSeconds(Integer.MIN_VALUE)); + } + } + } + } + + /** + * toMinutes saturates positive too-large values to Long.MAX_VALUE + * and negative to LONG.MIN_VALUE + */ + public void testToMinutesSaturate() { + for (TimeUnit x : TimeUnit.values()) { + long ratio = x.toNanos(1) / MINUTES.toNanos(1); + if (ratio > 1) { + long max = Long.MAX_VALUE/ratio; + for (long z : new long[] {0, 1, -1, max, -max}) + assertEquals(z * ratio, x.toMinutes(z)); + assertEquals(Long.MAX_VALUE, x.toMinutes(max + 1)); + assertEquals(Long.MIN_VALUE, x.toMinutes(-max - 1)); + assertEquals(Long.MAX_VALUE, x.toMinutes(Long.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toMinutes(Long.MIN_VALUE)); + assertEquals(Long.MIN_VALUE, x.toMinutes(Long.MIN_VALUE + 1)); + } + } + } + + /** + * toHours saturates positive too-large values to Long.MAX_VALUE + * and negative to LONG.MIN_VALUE + */ + public void testToHoursSaturate() { + for (TimeUnit x : TimeUnit.values()) { + long ratio = x.toNanos(1) / HOURS.toNanos(1); + if (ratio >= 1) { + long max = Long.MAX_VALUE/ratio; + for (long z : new long[] {0, 1, -1, max, -max}) + assertEquals(z * ratio, x.toHours(z)); + if (max < Long.MAX_VALUE) { + assertEquals(Long.MAX_VALUE, x.toHours(max + 1)); + assertEquals(Long.MIN_VALUE, x.toHours(-max - 1)); + assertEquals(Long.MIN_VALUE, x.toHours(Long.MIN_VALUE + 1)); + } + assertEquals(Long.MAX_VALUE, x.toHours(Long.MAX_VALUE)); + assertEquals(Long.MIN_VALUE, x.toHours(Long.MIN_VALUE)); + } + } + } + + /** + * 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()); + } /** - * Timed wait without holding lock throws - * IllegalMonitorStateException + * Timed wait without holding lock throws + * IllegalMonitorStateException */ - public void testTimedWait_IllegalMonitorException() throws Exception { - Thread t = new Thread(new CheckedRunnable() { + public void testTimedWait_IllegalMonitorException() { + Thread t = newStartedThread(new CheckedRunnable() { public void realRun() throws InterruptedException { Object o = new Object(); - TimeUnit tu = TimeUnit.MILLISECONDS; + TimeUnit tu = MILLISECONDS; + try { - tu.timedWait(o,LONG_DELAY_MS); + tu.timedWait(o, LONG_DELAY_MS); threadShouldThrow(); - } catch (IllegalMonitorStateException success) {}}}); + } catch (IllegalMonitorStateException success) {} + }}); - t.start(); - Thread.sleep(SHORT_DELAY_MS); - t.interrupt(); - t.join(); + awaitTermination(t); } /** * timedWait throws InterruptedException when interrupted */ - public void testTimedWait() throws InterruptedException { - Thread t = new Thread(new CheckedInterruptedRunnable() { + 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; - TimeUnit tu = TimeUnit.MILLISECONDS; - synchronized (o) { - tu.timedWait(o,MEDIUM_DELAY_MS); - } + 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()); }}); - t.start(); - Thread.sleep(SHORT_DELAY_MS); + + await(pleaseInterrupt); + assertThreadStaysAlive(t); t.interrupt(); - t.join(); + awaitTermination(t); } - /** * timedJoin throws InterruptedException when interrupted */ - public void testTimedJoin() throws InterruptedException { - final Thread s = new Thread(new CheckedInterruptedRunnable() { + public void testTimedJoin_Interruptible() { + final CountDownLatch pleaseInterrupt = new CountDownLatch(1); + final Thread s = newStartedThread(new CheckedInterruptedRunnable() { public void realRun() throws InterruptedException { - Thread.sleep(MEDIUM_DELAY_MS); + Thread.sleep(LONG_DELAY_MS); }}); - final Thread t = new Thread(new CheckedInterruptedRunnable() { + final Thread t = newStartedThread(new CheckedRunnable() { public void realRun() throws InterruptedException { - TimeUnit tu = TimeUnit.MILLISECONDS; - tu.timedJoin(s, MEDIUM_DELAY_MS); - }});; - s.start(); - t.start(); - Thread.sleep(SHORT_DELAY_MS); + 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(); - t.join(); + awaitTermination(t); s.interrupt(); - s.join(); + awaitTermination(s); } /** - * timedSleep throws InterruptedException when interrupted + * timedSleep throws InterruptedException when interrupted */ - public void testTimedSleep() throws InterruptedException { - Thread t = new Thread(new CheckedInterruptedRunnable() { + public void testTimedSleep_Interruptible() { + final CountDownLatch pleaseInterrupt = new CountDownLatch(1); + Thread t = newStartedThread(new CheckedRunnable() { public void realRun() throws InterruptedException { - TimeUnit tu = TimeUnit.MILLISECONDS; - tu.sleep(MEDIUM_DELAY_MS); + 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()); }}); - t.start(); - Thread.sleep(SHORT_DELAY_MS); + await(pleaseInterrupt); + assertThreadStaysAlive(t); t.interrupt(); - t.join(); + awaitTermination(t); } /** * a deserialized serialized unit is the same instance */ public void testSerialization() throws Exception { - TimeUnit q = TimeUnit.MILLISECONDS; + for (TimeUnit x : TimeUnit.values()) + assertSame(x, serialClone(x)); + } - 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); + /** + * tests for toChronoUnit. + */ + public void testToChronoUnit() throws Exception { + assertSame(ChronoUnit.NANOS, NANOSECONDS.toChronoUnit()); + assertSame(ChronoUnit.MICROS, MICROSECONDS.toChronoUnit()); + assertSame(ChronoUnit.MILLIS, MILLISECONDS.toChronoUnit()); + assertSame(ChronoUnit.SECONDS, SECONDS.toChronoUnit()); + assertSame(ChronoUnit.MINUTES, MINUTES.toChronoUnit()); + assertSame(ChronoUnit.HOURS, HOURS.toChronoUnit()); + assertSame(ChronoUnit.DAYS, DAYS.toChronoUnit()); + + // Every TimeUnit has a defined ChronoUnit equivalent + for (TimeUnit x : TimeUnit.values()) + assertSame(x, TimeUnit.of(x.toChronoUnit())); + } + + /** + * tests for TimeUnit.of(ChronoUnit). + */ + public void testTimeUnitOf() throws Exception { + assertSame(NANOSECONDS, TimeUnit.of(ChronoUnit.NANOS)); + assertSame(MICROSECONDS, TimeUnit.of(ChronoUnit.MICROS)); + assertSame(MILLISECONDS, TimeUnit.of(ChronoUnit.MILLIS)); + assertSame(SECONDS, TimeUnit.of(ChronoUnit.SECONDS)); + assertSame(MINUTES, TimeUnit.of(ChronoUnit.MINUTES)); + assertSame(HOURS, TimeUnit.of(ChronoUnit.HOURS)); + assertSame(DAYS, TimeUnit.of(ChronoUnit.DAYS)); + + assertThrows(NullPointerException.class, + () -> TimeUnit.of((ChronoUnit)null)); + + // ChronoUnits either round trip to their TimeUnit + // equivalents, or throw IllegalArgumentException. + for (ChronoUnit cu : ChronoUnit.values()) { + final TimeUnit tu; + try { + tu = TimeUnit.of(cu); + } catch (IllegalArgumentException acceptable) { + continue; + } + assertSame(cu, tu.toChronoUnit()); + } } }