--- jsr166/src/test/tck/ReentrantLockTest.java 2003/12/29 19:05:40 1.15 +++ jsr166/src/test/tck/ReentrantLockTest.java 2004/01/25 13:25:28 1.19 @@ -176,6 +176,82 @@ public class ReentrantLockTest extends J } /** + * getQueueLength reports number of waiting threads + */ + public void testGetQueueLength_fair() { + final ReentrantLock lock = new ReentrantLock(true); + Thread t1 = new Thread(new InterruptedLockRunnable(lock)); + Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); + try { + assertEquals(0, lock.getQueueLength()); + lock.lock(); + t1.start(); + Thread.sleep(SHORT_DELAY_MS); + assertEquals(1, lock.getQueueLength()); + t2.start(); + Thread.sleep(SHORT_DELAY_MS); + assertEquals(2, lock.getQueueLength()); + t1.interrupt(); + Thread.sleep(SHORT_DELAY_MS); + assertEquals(1, lock.getQueueLength()); + lock.unlock(); + Thread.sleep(SHORT_DELAY_MS); + assertEquals(0, lock.getQueueLength()); + t1.join(); + t2.join(); + } catch(Exception e){ + unexpectedException(); + } + } + + /** + * hasQueuedThread(null) throws NPE + */ + public void testHasQueuedThreadNPE() { + final ReentrantLock sync = new ReentrantLock(); + try { + sync.hasQueuedThread(null); + shouldThrow(); + } catch (NullPointerException success) { + } + } + + /** + * hasQueuedThread reports whether a thread is queued. + */ + public void testHasQueuedThread() { + final ReentrantLock sync = new ReentrantLock(); + Thread t1 = new Thread(new InterruptedLockRunnable(sync)); + Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); + try { + assertFalse(sync.hasQueuedThread(t1)); + assertFalse(sync.hasQueuedThread(t2)); + sync.lock(); + t1.start(); + Thread.sleep(SHORT_DELAY_MS); + assertTrue(sync.hasQueuedThread(t1)); + t2.start(); + Thread.sleep(SHORT_DELAY_MS); + assertTrue(sync.hasQueuedThread(t1)); + assertTrue(sync.hasQueuedThread(t2)); + t1.interrupt(); + Thread.sleep(SHORT_DELAY_MS); + assertFalse(sync.hasQueuedThread(t1)); + assertTrue(sync.hasQueuedThread(t2)); + sync.unlock(); + Thread.sleep(SHORT_DELAY_MS); + assertFalse(sync.hasQueuedThread(t1)); + Thread.sleep(SHORT_DELAY_MS); + assertFalse(sync.hasQueuedThread(t2)); + t1.join(); + t2.join(); + } catch(Exception e){ + unexpectedException(); + } + } + + + /** * getQueuedThreads includes waiting threads */ public void testGetQueuedThreads() { @@ -860,7 +936,7 @@ public class ReentrantLockTest extends J public void run() { try { lock.lock(); - c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); + c.awaitNanos(1000 * 1000 * 1000); // 1 sec lock.unlock(); threadShouldThrow(); } @@ -987,4 +1063,16 @@ public class ReentrantLockTest extends J } } + /** + * toString indicates current lock state + */ + public void testToString() { + ReentrantLock lock = new ReentrantLock(); + String us = lock.toString(); + assertTrue(us.indexOf("Unlocked") >= 0); + lock.lock(); + String ls = lock.toString(); + assertTrue(ls.indexOf("Locked") >= 0); + } + }