| 1 |
/* |
| 2 |
* Written by Martin Buchholz and Doug Lea with assistance from |
| 3 |
* members of JCP JSR-166 Expert Group and released to the public |
| 4 |
* domain, as explained at |
| 5 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
| 6 |
*/ |
| 7 |
|
| 8 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| 9 |
|
| 10 |
import java.util.concurrent.ArrayBlockingQueue; |
| 11 |
import java.util.concurrent.ThreadPoolExecutor; |
| 12 |
|
| 13 |
import junit.framework.Test; |
| 14 |
import junit.framework.TestSuite; |
| 15 |
|
| 16 |
public class ThreadPoolExecutor9Test extends JSR166TestCase { |
| 17 |
public static void main(String[] args) { |
| 18 |
main(suite(), args); |
| 19 |
} |
| 20 |
public static Test suite() { |
| 21 |
return new TestSuite(ThreadPoolExecutor9Test.class); |
| 22 |
} |
| 23 |
|
| 24 |
/** |
| 25 |
* Configuration changes that allow core pool size greater than |
| 26 |
* max pool size result in IllegalArgumentException. |
| 27 |
*/ |
| 28 |
public void testPoolSizeInvariants() { |
| 29 |
ThreadPoolExecutor p = |
| 30 |
new ThreadPoolExecutor(1, 1, |
| 31 |
LONG_DELAY_MS, MILLISECONDS, |
| 32 |
new ArrayBlockingQueue<Runnable>(10)); |
| 33 |
for (int s = 1; s < 5; s++) { |
| 34 |
p.setMaximumPoolSize(s); |
| 35 |
p.setCorePoolSize(s); |
| 36 |
try { |
| 37 |
p.setMaximumPoolSize(s - 1); |
| 38 |
shouldThrow(); |
| 39 |
} catch (IllegalArgumentException success) {} |
| 40 |
assertEquals(s, p.getCorePoolSize()); |
| 41 |
assertEquals(s, p.getMaximumPoolSize()); |
| 42 |
try { |
| 43 |
p.setCorePoolSize(s + 1); |
| 44 |
shouldThrow(); |
| 45 |
} catch (IllegalArgumentException success) {} |
| 46 |
assertEquals(s, p.getCorePoolSize()); |
| 47 |
assertEquals(s, p.getMaximumPoolSize()); |
| 48 |
} |
| 49 |
joinPool(p); |
| 50 |
} |
| 51 |
|
| 52 |
} |
