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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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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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import junit.framework.*; |
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* Create a deque of given size containing consecutive |
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* Integers 0 ... n. |
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*/ |
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private LinkedBlockingDeque populatedDeque(int n) { |
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LinkedBlockingDeque q = new LinkedBlockingDeque(n); |
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private LinkedBlockingDeque<Integer> populatedDeque(int n) { |
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LinkedBlockingDeque<Integer> q = |
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new LinkedBlockingDeque<Integer>(n); |
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assertTrue(q.isEmpty()); |
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for (int i = 0; i < n; i++) |
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assertTrue(q.offer(new Integer(i))); |
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} |
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|
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/** |
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* take blocks interruptibly when empty |
686 |
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*/ |
687 |
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public void testTakeFromEmpty() throws InterruptedException { |
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final LinkedBlockingDeque q = new LinkedBlockingDeque(2); |
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Thread t = new ThreadShouldThrow(InterruptedException.class) { |
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public void realRun() throws InterruptedException { |
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q.take(); |
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}}; |
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|
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t.start(); |
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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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} |
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|
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/** |
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* Take removes existing elements until empty, then blocks interruptibly |
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*/ |
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public void testBlockingTake() throws InterruptedException { |
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* returning timeout status |
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*/ |
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public void testInterruptedTimedPoll() throws InterruptedException { |
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Thread t = new Thread(new CheckedRunnable() { |
746 |
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final BlockingQueue<Integer> q = populatedDeque(SIZE); |
747 |
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final CountDownLatch aboutToWait = new CountDownLatch(1); |
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Thread t = newStartedThread(new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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LinkedBlockingDeque q = populatedDeque(SIZE); |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
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long t0 = System.nanoTime(); |
752 |
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assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
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assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
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} |
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long t0 = System.nanoTime(); |
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aboutToWait.countDown(); |
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try { |
758 |
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q.poll(SMALL_DELAY_MS, MILLISECONDS); |
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q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (InterruptedException success) {} |
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} catch (InterruptedException success) { |
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assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
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} |
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}}); |
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t.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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aboutToWait.await(); |
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waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
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awaitTermination(t, MEDIUM_DELAY_MS); |
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checkEmpty(q); |
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} |
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/** |
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* putFirst(null) throws NPE |
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*/ |
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public void testPutFirstNull() throws InterruptedException { |
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public void testPutFirstNull() throws InterruptedException { |
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try { |
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LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE); |
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q.putFirst(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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} |
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/** |
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* all elements successfully putFirst are contained |
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*/ |
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public void testPutFirst() throws InterruptedException { |
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LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE); |
788 |
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for (int i = 0; i < SIZE; ++i) { |
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Integer I = new Integer(i); |
790 |
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q.putFirst(I); |
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assertTrue(q.contains(I)); |
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} |
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assertEquals(0, q.remainingCapacity()); |
786 |
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public void testPutFirst() throws InterruptedException { |
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LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE); |
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for (int i = 0; i < SIZE; ++i) { |
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Integer I = new Integer(i); |
790 |
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q.putFirst(I); |
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assertTrue(q.contains(I)); |
792 |
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} |
793 |
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assertEquals(0, q.remainingCapacity()); |
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} |
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/** |
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/** |
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* putLast(null) throws NPE |
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*/ |
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public void testPutLastNull() throws InterruptedException { |
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public void testPutLastNull() throws InterruptedException { |
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try { |
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LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE); |
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q.putLast(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
994 |
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} |
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/** |
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* all elements successfully putLast are contained |
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*/ |
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public void testPutLast() throws InterruptedException { |
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LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE); |
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for (int i = 0; i < SIZE; ++i) { |
1002 |
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Integer I = new Integer(i); |
1003 |
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q.putLast(I); |
1004 |
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assertTrue(q.contains(I)); |
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} |
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assertEquals(0, q.remainingCapacity()); |
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public void testPutLast() throws InterruptedException { |
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LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE); |
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for (int i = 0; i < SIZE; ++i) { |
1002 |
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Integer I = new Integer(i); |
1003 |
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q.putLast(I); |
1004 |
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assertTrue(q.contains(I)); |
1005 |
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} |
1006 |
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assertEquals(0, q.remainingCapacity()); |
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} |
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/** |
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public void testRemoveElement() { |
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LinkedBlockingDeque q = populatedDeque(SIZE); |
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for (int i = 1; i < SIZE; i+=2) { |
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assertTrue(q.remove(new Integer(i))); |
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assertTrue(q.contains(i)); |
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assertTrue(q.remove(i)); |
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assertFalse(q.contains(i)); |
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assertTrue(q.contains(i-1)); |
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} |
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for (int i = 0; i < SIZE; i+=2) { |
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assertTrue(q.remove(new Integer(i))); |
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assertFalse(q.remove(new Integer(i+1))); |
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assertTrue(q.contains(i)); |
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assertTrue(q.remove(i)); |
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assertFalse(q.contains(i)); |
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assertFalse(q.remove(i+1)); |
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assertFalse(q.contains(i+1)); |
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} |
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assertTrue(q.isEmpty()); |
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} |
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} |
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/** |
1312 |
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* toArray contains all elements |
1312 |
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* toArray contains all elements in FIFO order |
1313 |
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*/ |
1314 |
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public void testToArray() throws InterruptedException{ |
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LinkedBlockingDeque q = populatedDeque(SIZE); |
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Object[] o = q.toArray(); |
1317 |
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for (int i = 0; i < o.length; i++) |
1318 |
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assertEquals(o[i], q.take()); |
1318 |
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assertSame(o[i], q.poll()); |
1319 |
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} |
1320 |
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1321 |
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/** |
1322 |
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* toArray(a) contains all elements |
1322 |
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* toArray(a) contains all elements in FIFO order |
1323 |
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*/ |
1324 |
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public void testToArray2() throws InterruptedException { |
1325 |
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LinkedBlockingDeque q = populatedDeque(SIZE); |
1324 |
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public void testToArray2() { |
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LinkedBlockingDeque<Integer> q = populatedDeque(SIZE); |
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Integer[] ints = new Integer[SIZE]; |
1327 |
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ints = (Integer[])q.toArray(ints); |
1327 |
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Integer[] array = q.toArray(ints); |
1328 |
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assertSame(ints, array); |
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for (int i = 0; i < ints.length; i++) |
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assertEquals(ints[i], q.take()); |
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assertSame(ints[i], q.remove()); |
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} |
1332 |
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/** |
1334 |
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* toArray(null) throws NPE |
1334 |
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* toArray(null) throws NullPointerException |
1335 |
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*/ |
1336 |
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public void testToArray_BadArg() { |
1336 |
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public void testToArray_NullArg() { |
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LinkedBlockingDeque q = populatedDeque(SIZE); |
1338 |
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try { |
1339 |
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Object o[] = q.toArray(null); |
1339 |
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q.toArray(null); |
1340 |
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shouldThrow(); |
1341 |
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} catch (NullPointerException success) {} |
1342 |
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} |
1343 |
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|
1344 |
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/** |
1345 |
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* toArray with incompatible array type throws CCE |
1345 |
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* toArray(incompatible array type) throws ArrayStoreException |
1346 |
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*/ |
1347 |
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public void testToArray1_BadArg() { |
1348 |
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LinkedBlockingDeque q = populatedDeque(SIZE); |
1349 |
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try { |
1350 |
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Object o[] = q.toArray(new String[10]); |
1350 |
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q.toArray(new String[10]); |
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shouldThrow(); |
1352 |
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} catch (ArrayStoreException success) {} |
1353 |
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} |
1654 |
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assertTrue(q.offer(new Integer(j))); |
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ArrayList l = new ArrayList(); |
1656 |
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q.drainTo(l, i); |
1657 |
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int k = (i < SIZE)? i : SIZE; |
1657 |
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int k = (i < SIZE) ? i : SIZE; |
1658 |
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assertEquals(l.size(), k); |
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assertEquals(q.size(), SIZE-k); |
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for (int j = 0; j < k; ++j) |