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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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|
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import junit.framework.*; |
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import java.util.concurrent.*; |
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import java.io.*; |
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|
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public class TimeUnitTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(TimeUnitTest.class); |
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} |
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|
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// (loops to 88888 check increments at all time divisions.) |
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|
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/** |
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* convert correctly converts sample values across the units |
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*/ |
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public void testConvert() { |
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for (long t = 0; t < 88888; ++t) { |
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assertEquals(t*60*60*24, |
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TimeUnit.SECONDS.convert(t, |
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TimeUnit.DAYS)); |
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assertEquals(t*60*60, |
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TimeUnit.SECONDS.convert(t, |
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TimeUnit.HOURS)); |
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assertEquals(t*60, |
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TimeUnit.SECONDS.convert(t, |
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TimeUnit.MINUTES)); |
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assertEquals(t, |
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TimeUnit.SECONDS.convert(t, |
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TimeUnit.SECONDS)); |
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assertEquals(t, |
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TimeUnit.SECONDS.convert(1000L*t, |
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TimeUnit.MILLISECONDS)); |
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assertEquals(t, |
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TimeUnit.SECONDS.convert(1000000L*t, |
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TimeUnit.MICROSECONDS)); |
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assertEquals(t, |
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TimeUnit.SECONDS.convert(1000000000L*t, |
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TimeUnit.NANOSECONDS)); |
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|
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|
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assertEquals(1000L*t*60*60*24, |
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TimeUnit.MILLISECONDS.convert(t, |
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TimeUnit.DAYS)); |
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assertEquals(1000L*t*60*60, |
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TimeUnit.MILLISECONDS.convert(t, |
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TimeUnit.HOURS)); |
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assertEquals(1000L*t*60, |
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TimeUnit.MILLISECONDS.convert(t, |
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TimeUnit.MINUTES)); |
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assertEquals(1000L*t, |
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TimeUnit.MILLISECONDS.convert(t, |
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TimeUnit.SECONDS)); |
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assertEquals(t, |
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TimeUnit.MILLISECONDS.convert(t, |
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TimeUnit.MILLISECONDS)); |
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assertEquals(t, |
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TimeUnit.MILLISECONDS.convert(1000L*t, |
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TimeUnit.MICROSECONDS)); |
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assertEquals(t, |
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TimeUnit.MILLISECONDS.convert(1000000L*t, |
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TimeUnit.NANOSECONDS)); |
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|
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assertEquals(1000000L*t*60*60*24, |
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TimeUnit.MICROSECONDS.convert(t, |
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TimeUnit.DAYS)); |
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assertEquals(1000000L*t*60*60, |
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TimeUnit.MICROSECONDS.convert(t, |
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TimeUnit.HOURS)); |
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assertEquals(1000000L*t*60, |
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TimeUnit.MICROSECONDS.convert(t, |
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TimeUnit.MINUTES)); |
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assertEquals(1000000L*t, |
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TimeUnit.MICROSECONDS.convert(t, |
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TimeUnit.SECONDS)); |
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assertEquals(1000L*t, |
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TimeUnit.MICROSECONDS.convert(t, |
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TimeUnit.MILLISECONDS)); |
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assertEquals(t, |
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TimeUnit.MICROSECONDS.convert(t, |
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TimeUnit.MICROSECONDS)); |
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assertEquals(t, |
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TimeUnit.MICROSECONDS.convert(1000L*t, |
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TimeUnit.NANOSECONDS)); |
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|
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assertEquals(1000000000L*t*60*60*24, |
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TimeUnit.NANOSECONDS.convert(t, |
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TimeUnit.DAYS)); |
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assertEquals(1000000000L*t*60*60, |
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TimeUnit.NANOSECONDS.convert(t, |
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TimeUnit.HOURS)); |
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assertEquals(1000000000L*t*60, |
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TimeUnit.NANOSECONDS.convert(t, |
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TimeUnit.MINUTES)); |
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assertEquals(1000000000L*t, |
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TimeUnit.NANOSECONDS.convert(t, |
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TimeUnit.SECONDS)); |
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assertEquals(1000000L*t, |
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TimeUnit.NANOSECONDS.convert(t, |
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TimeUnit.MILLISECONDS)); |
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assertEquals(1000L*t, |
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TimeUnit.NANOSECONDS.convert(t, |
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TimeUnit.MICROSECONDS)); |
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assertEquals(t, |
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TimeUnit.NANOSECONDS.convert(t, |
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TimeUnit.NANOSECONDS)); |
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} |
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} |
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|
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/** |
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* toNanos correctly converts sample values in different units to |
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* nanoseconds |
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*/ |
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public void testToNanos() { |
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for (long t = 0; t < 88888; ++t) { |
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assertEquals(t*1000000000L*60*60*24, |
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TimeUnit.DAYS.toNanos(t)); |
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assertEquals(t*1000000000L*60*60, |
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TimeUnit.HOURS.toNanos(t)); |
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assertEquals(t*1000000000L*60, |
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TimeUnit.MINUTES.toNanos(t)); |
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assertEquals(1000000000L*t, |
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TimeUnit.SECONDS.toNanos(t)); |
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assertEquals(1000000L*t, |
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TimeUnit.MILLISECONDS.toNanos(t)); |
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assertEquals(1000L*t, |
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TimeUnit.MICROSECONDS.toNanos(t)); |
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assertEquals(t, |
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TimeUnit.NANOSECONDS.toNanos(t)); |
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} |
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} |
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|
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/** |
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* toMicros correctly converts sample values in different units to |
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* microseconds |
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*/ |
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public void testToMicros() { |
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for (long t = 0; t < 88888; ++t) { |
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assertEquals(t*1000000L*60*60*24, |
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TimeUnit.DAYS.toMicros(t)); |
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assertEquals(t*1000000L*60*60, |
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TimeUnit.HOURS.toMicros(t)); |
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assertEquals(t*1000000L*60, |
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TimeUnit.MINUTES.toMicros(t)); |
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assertEquals(1000000L*t, |
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TimeUnit.SECONDS.toMicros(t)); |
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assertEquals(1000L*t, |
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TimeUnit.MILLISECONDS.toMicros(t)); |
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assertEquals(t, |
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TimeUnit.MICROSECONDS.toMicros(t)); |
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assertEquals(t, |
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TimeUnit.NANOSECONDS.toMicros(t*1000L)); |
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} |
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} |
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|
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/** |
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* toMillis correctly converts sample values in different units to |
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* milliseconds |
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*/ |
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public void testToMillis() { |
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for (long t = 0; t < 88888; ++t) { |
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assertEquals(t*1000L*60*60*24, |
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TimeUnit.DAYS.toMillis(t)); |
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assertEquals(t*1000L*60*60, |
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TimeUnit.HOURS.toMillis(t)); |
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assertEquals(t*1000L*60, |
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TimeUnit.MINUTES.toMillis(t)); |
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assertEquals(1000L*t, |
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TimeUnit.SECONDS.toMillis(t)); |
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assertEquals(t, |
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TimeUnit.MILLISECONDS.toMillis(t)); |
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assertEquals(t, |
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TimeUnit.MICROSECONDS.toMillis(t*1000L)); |
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assertEquals(t, |
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TimeUnit.NANOSECONDS.toMillis(t*1000000L)); |
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} |
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} |
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|
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/** |
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* toSeconds correctly converts sample values in different units to |
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* seconds |
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*/ |
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public void testToSeconds() { |
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for (long t = 0; t < 88888; ++t) { |
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assertEquals(t*60*60*24, |
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TimeUnit.DAYS.toSeconds(t)); |
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assertEquals(t*60*60, |
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TimeUnit.HOURS.toSeconds(t)); |
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assertEquals(t*60, |
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TimeUnit.MINUTES.toSeconds(t)); |
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assertEquals(t, |
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TimeUnit.SECONDS.toSeconds(t)); |
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assertEquals(t, |
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TimeUnit.MILLISECONDS.toSeconds(t*1000L)); |
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assertEquals(t, |
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TimeUnit.MICROSECONDS.toSeconds(t*1000000L)); |
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assertEquals(t, |
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TimeUnit.NANOSECONDS.toSeconds(t*1000000000L)); |
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} |
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} |
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|
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/** |
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* toMinutes correctly converts sample values in different units to |
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* minutes |
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*/ |
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public void testToMinutes() { |
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for (long t = 0; t < 88888; ++t) { |
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assertEquals(t*60*24, |
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TimeUnit.DAYS.toMinutes(t)); |
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assertEquals(t*60, |
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TimeUnit.HOURS.toMinutes(t)); |
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assertEquals(t, |
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TimeUnit.MINUTES.toMinutes(t)); |
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assertEquals(t, |
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TimeUnit.SECONDS.toMinutes(t*60)); |
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assertEquals(t, |
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TimeUnit.MILLISECONDS.toMinutes(t*1000L*60)); |
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assertEquals(t, |
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TimeUnit.MICROSECONDS.toMinutes(t*1000000L*60)); |
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assertEquals(t, |
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TimeUnit.NANOSECONDS.toMinutes(t*1000000000L*60)); |
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} |
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} |
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|
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/** |
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* toHours correctly converts sample values in different units to |
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* hours |
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*/ |
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public void testToHours() { |
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for (long t = 0; t < 88888; ++t) { |
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assertEquals(t*24, |
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TimeUnit.DAYS.toHours(t)); |
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assertEquals(t, |
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TimeUnit.HOURS.toHours(t)); |
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assertEquals(t, |
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TimeUnit.MINUTES.toHours(t*60)); |
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assertEquals(t, |
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TimeUnit.SECONDS.toHours(t*60*60)); |
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assertEquals(t, |
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TimeUnit.MILLISECONDS.toHours(t*1000L*60*60)); |
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assertEquals(t, |
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TimeUnit.MICROSECONDS.toHours(t*1000000L*60*60)); |
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assertEquals(t, |
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TimeUnit.NANOSECONDS.toHours(t*1000000000L*60*60)); |
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} |
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} |
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|
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/** |
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* toDays correctly converts sample values in different units to |
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* days |
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*/ |
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public void testToDays() { |
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for (long t = 0; t < 88888; ++t) { |
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assertEquals(t, |
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TimeUnit.DAYS.toDays(t)); |
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assertEquals(t, |
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TimeUnit.HOURS.toDays(t*24)); |
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assertEquals(t, |
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TimeUnit.MINUTES.toDays(t*60*24)); |
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assertEquals(t, |
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TimeUnit.SECONDS.toDays(t*60*60*24)); |
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assertEquals(t, |
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TimeUnit.MILLISECONDS.toDays(t*1000L*60*60*24)); |
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assertEquals(t, |
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TimeUnit.MICROSECONDS.toDays(t*1000000L*60*60*24)); |
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assertEquals(t, |
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TimeUnit.NANOSECONDS.toDays(t*1000000000L*60*60*24)); |
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} |
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} |
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|
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|
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/** |
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* convert saturates positive too-large values to Long.MAX_VALUE |
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* and negative to LONG.MIN_VALUE |
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*/ |
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public void testConvertSaturate() { |
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assertEquals(Long.MAX_VALUE, |
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TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2, |
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TimeUnit.SECONDS)); |
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assertEquals(Long.MIN_VALUE, |
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TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4, |
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TimeUnit.SECONDS)); |
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assertEquals(Long.MAX_VALUE, |
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TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2, |
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TimeUnit.MINUTES)); |
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assertEquals(Long.MIN_VALUE, |
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TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4, |
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TimeUnit.MINUTES)); |
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assertEquals(Long.MAX_VALUE, |
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TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2, |
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TimeUnit.HOURS)); |
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assertEquals(Long.MIN_VALUE, |
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TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4, |
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TimeUnit.HOURS)); |
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assertEquals(Long.MAX_VALUE, |
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TimeUnit.NANOSECONDS.convert(Long.MAX_VALUE / 2, |
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TimeUnit.DAYS)); |
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assertEquals(Long.MIN_VALUE, |
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TimeUnit.NANOSECONDS.convert(-Long.MAX_VALUE / 4, |
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TimeUnit.DAYS)); |
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|
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} |
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|
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/** |
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* toNanos saturates positive too-large values to Long.MAX_VALUE |
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* and negative to LONG.MIN_VALUE |
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*/ |
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public void testToNanosSaturate() { |
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assertEquals(Long.MAX_VALUE, |
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TimeUnit.MILLISECONDS.toNanos(Long.MAX_VALUE / 2)); |
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assertEquals(Long.MIN_VALUE, |
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TimeUnit.MILLISECONDS.toNanos(-Long.MAX_VALUE / 3)); |
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} |
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|
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|
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/** |
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* toString returns string containing common name of unit |
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*/ |
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public void testToString() { |
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String s = TimeUnit.SECONDS.toString(); |
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assertTrue(s.indexOf("ECOND") >= 0); |
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} |
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|
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|
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/** |
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* Timed wait without holding lock throws |
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* IllegalMonitorStateException |
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*/ |
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public void testTimedWait_IllegalMonitorException() { |
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//created a new thread with anonymous runnable |
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|
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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Object o = new Object(); |
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TimeUnit tu = TimeUnit.MILLISECONDS; |
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try { |
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tu.timedWait(o,LONG_DELAY_MS); |
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threadShouldThrow(); |
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} |
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catch (InterruptedException ie) { |
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threadUnexpectedException(); |
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} |
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catch (IllegalMonitorStateException success) { |
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} |
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|
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} |
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}); |
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t.start(); |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
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} catch (Exception e) { |
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unexpectedException(); |
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} |
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} |
368 |
|
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/** |
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* timedWait throws InterruptedException when interrupted |
371 |
*/ |
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public void testTimedWait() { |
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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Object o = new Object(); |
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|
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TimeUnit tu = TimeUnit.MILLISECONDS; |
378 |
try { |
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synchronized(o) { |
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tu.timedWait(o,MEDIUM_DELAY_MS); |
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} |
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threadShouldThrow(); |
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} |
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catch (InterruptedException success) {} |
385 |
catch (IllegalMonitorStateException failure) { |
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threadUnexpectedException(); |
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} |
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} |
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}); |
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t.start(); |
391 |
try { |
392 |
Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
395 |
} catch (Exception e) { |
396 |
unexpectedException(); |
397 |
} |
398 |
} |
399 |
|
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|
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/** |
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* timedJoin throws InterruptedException when interrupted |
403 |
*/ |
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public void testTimedJoin() { |
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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TimeUnit tu = TimeUnit.MILLISECONDS; |
408 |
try { |
409 |
Thread s = new Thread(new Runnable() { |
410 |
public void run() { |
411 |
try { |
412 |
Thread.sleep(MEDIUM_DELAY_MS); |
413 |
} catch (InterruptedException success){} |
414 |
} |
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}); |
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s.start(); |
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tu.timedJoin(s,MEDIUM_DELAY_MS); |
418 |
threadShouldThrow(); |
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} |
420 |
catch (Exception e) {} |
421 |
} |
422 |
}); |
423 |
t.start(); |
424 |
try { |
425 |
Thread.sleep(SHORT_DELAY_MS); |
426 |
t.interrupt(); |
427 |
t.join(); |
428 |
} catch (Exception e) { |
429 |
unexpectedException(); |
430 |
} |
431 |
} |
432 |
|
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/** |
434 |
* timedSleep throws InterruptedException when interrupted |
435 |
*/ |
436 |
public void testTimedSleep() { |
437 |
//created a new thread with anonymous runnable |
438 |
|
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Thread t = new Thread(new Runnable() { |
440 |
public void run() { |
441 |
TimeUnit tu = TimeUnit.MILLISECONDS; |
442 |
try { |
443 |
tu.sleep(MEDIUM_DELAY_MS); |
444 |
threadShouldThrow(); |
445 |
} |
446 |
catch (InterruptedException success) {} |
447 |
} |
448 |
}); |
449 |
t.start(); |
450 |
try { |
451 |
Thread.sleep(SHORT_DELAY_MS); |
452 |
t.interrupt(); |
453 |
t.join(); |
454 |
} catch (Exception e) { |
455 |
unexpectedException(); |
456 |
} |
457 |
} |
458 |
|
459 |
/** |
460 |
* a deserialized serialized unit is equal |
461 |
*/ |
462 |
public void testSerialization() { |
463 |
TimeUnit q = TimeUnit.MILLISECONDS; |
464 |
|
465 |
try { |
466 |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
467 |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
468 |
out.writeObject(q); |
469 |
out.close(); |
470 |
|
471 |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
472 |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
473 |
TimeUnit r = (TimeUnit)in.readObject(); |
474 |
|
475 |
assertEquals(q.toString(), r.toString()); |
476 |
} catch (Exception e){ |
477 |
e.printStackTrace(); |
478 |
unexpectedException(); |
479 |
} |
480 |
} |
481 |
|
482 |
} |