--- jsr166/src/test/tck/DelayQueueTest.java 2014/12/31 20:17:39 1.66 +++ jsr166/src/test/tck/DelayQueueTest.java 2017/05/29 22:44:26 1.88 @@ -35,31 +35,32 @@ public class DelayQueueTest extends JSR1 } public static void main(String[] args) { - junit.textui.TestRunner.run(suite()); + main(suite(), args); } public static Test suite() { + class Implementation implements CollectionImplementation { + public Class klazz() { return DelayQueue.class; } + public Collection emptyCollection() { return new DelayQueue(); } + public Object makeElement(int i) { return new PDelay(i); } + public boolean isConcurrent() { return true; } + public boolean permitsNulls() { return false; } + } return newTestSuite(DelayQueueTest.class, - new Generic().testSuite()); + new Generic().testSuite(), + CollectionTest.testSuite(new Implementation())); } - private static final int NOCAP = Integer.MAX_VALUE; - /** - * A delayed implementation for testing. - * Most tests use Pseudodelays, where delays are all elapsed + * A fake Delayed implementation for testing. + * Most tests use PDelays, where delays are all elapsed * (so, no blocking solely for delays) but are still ordered */ static class PDelay implements Delayed { - int pseudodelay; - PDelay(int i) { pseudodelay = i; } - public int compareTo(PDelay other) { - int a = this.pseudodelay; - int b = other.pseudodelay; - return (a < b) ? -1 : (a > b) ? 1 : 0; - } + final int pseudodelay; + PDelay(int pseudodelay) { this.pseudodelay = pseudodelay; } public int compareTo(Delayed y) { - return compareTo((PDelay)y); + return Integer.compare(this.pseudodelay, ((PDelay)y).pseudodelay); } public boolean equals(Object other) { return (other instanceof PDelay) && @@ -79,27 +80,18 @@ public class DelayQueueTest extends JSR1 * Delayed implementation that actually delays */ static class NanoDelay implements Delayed { - long trigger; + final long trigger; NanoDelay(long i) { trigger = System.nanoTime() + i; } - public int compareTo(NanoDelay y) { - long i = trigger; - long j = y.trigger; - if (i < j) return -1; - if (i > j) return 1; - return 0; - } public int compareTo(Delayed y) { - return compareTo((NanoDelay)y); + return Long.compare(trigger, ((NanoDelay)y).trigger); } public boolean equals(Object other) { - return equals((NanoDelay)other); - } - public boolean equals(NanoDelay other) { - return other.trigger == trigger; + return (other instanceof NanoDelay) && + this.trigger == ((NanoDelay)other).trigger; } // suppress [overrides] javac warning @@ -121,18 +113,19 @@ public class DelayQueueTest extends JSR1 /** * Returns a new queue of given size containing consecutive - * PDelays 0 ... n. + * PDelays 0 ... n - 1. */ - private DelayQueue populatedQueue(int n) { - DelayQueue q = new DelayQueue(); + private static DelayQueue populatedQueue(int n) { + DelayQueue q = new DelayQueue<>(); assertTrue(q.isEmpty()); - for (int i = n-1; i >= 0; i -= 2) + for (int i = n - 1; i >= 0; i -= 2) assertTrue(q.offer(new PDelay(i))); for (int i = (n & 1); i < n; i += 2) assertTrue(q.offer(new PDelay(i))); assertFalse(q.isEmpty()); - assertEquals(NOCAP, q.remainingCapacity()); + assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); assertEquals(n, q.size()); + assertEquals(new PDelay(0), q.peek()); return q; } @@ -140,7 +133,7 @@ public class DelayQueueTest extends JSR1 * A new queue has unbounded capacity */ public void testConstructor1() { - assertEquals(NOCAP, new DelayQueue().remainingCapacity()); + assertEquals(Integer.MAX_VALUE, new DelayQueue().remainingCapacity()); } /** @@ -148,7 +141,7 @@ public class DelayQueueTest extends JSR1 */ public void testConstructor3() { try { - DelayQueue q = new DelayQueue(null); + new DelayQueue(null); shouldThrow(); } catch (NullPointerException success) {} } @@ -158,8 +151,7 @@ public class DelayQueueTest extends JSR1 */ public void testConstructor4() { try { - PDelay[] ints = new PDelay[SIZE]; - DelayQueue q = new DelayQueue(Arrays.asList(ints)); + new DelayQueue(Arrays.asList(new PDelay[SIZE])); shouldThrow(); } catch (NullPointerException success) {} } @@ -168,11 +160,11 @@ public class DelayQueueTest extends JSR1 * Initializing from Collection with some null elements throws NPE */ public void testConstructor5() { + PDelay[] a = new PDelay[SIZE]; + for (int i = 0; i < SIZE - 1; ++i) + a[i] = new PDelay(i); try { - PDelay[] ints = new PDelay[SIZE]; - for (int i = 0; i < SIZE-1; ++i) - ints[i] = new PDelay(i); - DelayQueue q = new DelayQueue(Arrays.asList(ints)); + new DelayQueue(Arrays.asList(a)); shouldThrow(); } catch (NullPointerException success) {} } @@ -195,7 +187,7 @@ public class DelayQueueTest extends JSR1 public void testEmpty() { DelayQueue q = new DelayQueue(); assertTrue(q.isEmpty()); - assertEquals(NOCAP, q.remainingCapacity()); + assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); q.add(new PDelay(1)); assertFalse(q.isEmpty()); q.add(new PDelay(2)); @@ -205,20 +197,19 @@ public class DelayQueueTest extends JSR1 } /** - * remainingCapacity does not change when elements added or removed, - * but size does + * remainingCapacity() always returns Integer.MAX_VALUE */ public void testRemainingCapacity() { - DelayQueue q = populatedQueue(SIZE); + BlockingQueue q = populatedQueue(SIZE); for (int i = 0; i < SIZE; ++i) { - assertEquals(NOCAP, q.remainingCapacity()); - assertEquals(SIZE-i, q.size()); - q.remove(); + assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); + assertEquals(SIZE - i, q.size()); + assertTrue(q.remove() instanceof PDelay); } for (int i = 0; i < SIZE; ++i) { - assertEquals(NOCAP, q.remainingCapacity()); + assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); assertEquals(i, q.size()); - q.add(new PDelay(i)); + assertTrue(q.add(new PDelay(i))); } } @@ -243,11 +234,11 @@ public class DelayQueueTest extends JSR1 } /** - * addAll(this) throws IAE + * addAll(this) throws IllegalArgumentException */ public void testAddAllSelf() { + DelayQueue q = populatedQueue(SIZE); try { - DelayQueue q = populatedQueue(SIZE); q.addAll(q); shouldThrow(); } catch (IllegalArgumentException success) {} @@ -258,12 +249,12 @@ public class DelayQueueTest extends JSR1 * possibly adding some elements */ public void testAddAll3() { + DelayQueue q = new DelayQueue(); + PDelay[] a = new PDelay[SIZE]; + for (int i = 0; i < SIZE - 1; ++i) + a[i] = new PDelay(i); try { - DelayQueue q = new DelayQueue(); - PDelay[] ints = new PDelay[SIZE]; - for (int i = 0; i < SIZE-1; ++i) - ints[i] = new PDelay(i); - q.addAll(Arrays.asList(ints)); + q.addAll(Arrays.asList(a)); shouldThrow(); } catch (NullPointerException success) {} } @@ -274,7 +265,7 @@ public class DelayQueueTest extends JSR1 public void testAddAll5() { PDelay[] empty = new PDelay[0]; PDelay[] ints = new PDelay[SIZE]; - for (int i = SIZE-1; i >= 0; --i) + for (int i = SIZE - 1; i >= 0; --i) ints[i] = new PDelay(i); DelayQueue q = new DelayQueue(); assertFalse(q.addAll(Arrays.asList(empty))); @@ -335,7 +326,7 @@ public class DelayQueueTest extends JSR1 public void testTake() throws InterruptedException { DelayQueue q = populatedQueue(SIZE); for (int i = 0; i < SIZE; ++i) { - assertEquals(new PDelay(i), ((PDelay)q.take())); + assertEquals(new PDelay(i), q.take()); } } @@ -347,9 +338,8 @@ public class DelayQueueTest extends JSR1 final CountDownLatch pleaseInterrupt = new CountDownLatch(1); Thread t = newStartedThread(new CheckedRunnable() { public void realRun() throws InterruptedException { - for (int i = 0; i < SIZE; ++i) { + for (int i = 0; i < SIZE; i++) assertEquals(new PDelay(i), ((PDelay)q.take())); - } Thread.currentThread().interrupt(); try { @@ -367,7 +357,7 @@ public class DelayQueueTest extends JSR1 }}); await(pleaseInterrupt); - assertThreadStaysAlive(t); + assertThreadBlocks(t, Thread.State.WAITING); t.interrupt(); awaitTermination(t); } @@ -378,7 +368,7 @@ public class DelayQueueTest extends JSR1 public void testPoll() { DelayQueue q = populatedQueue(SIZE); for (int i = 0; i < SIZE; ++i) { - assertEquals(new PDelay(i), ((PDelay)q.poll())); + assertEquals(new PDelay(i), q.poll()); } assertNull(q.poll()); } @@ -389,7 +379,7 @@ public class DelayQueueTest extends JSR1 public void testTimedPoll0() throws InterruptedException { DelayQueue q = populatedQueue(SIZE); for (int i = 0; i < SIZE; ++i) { - assertEquals(new PDelay(i), ((PDelay)q.poll(0, MILLISECONDS))); + assertEquals(new PDelay(i), q.poll(0, MILLISECONDS)); } assertNull(q.poll(0, MILLISECONDS)); } @@ -401,7 +391,7 @@ public class DelayQueueTest extends JSR1 DelayQueue q = populatedQueue(SIZE); for (int i = 0; i < SIZE; ++i) { long startTime = System.nanoTime(); - assertEquals(new PDelay(i), ((PDelay)q.poll(LONG_DELAY_MS, MILLISECONDS))); + assertEquals(new PDelay(i), q.poll(LONG_DELAY_MS, MILLISECONDS)); assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); } long startTime = System.nanoTime(); @@ -416,12 +406,13 @@ public class DelayQueueTest extends JSR1 */ public void testInterruptedTimedPoll() throws InterruptedException { final CountDownLatch pleaseInterrupt = new CountDownLatch(1); + final DelayQueue q = populatedQueue(SIZE); Thread t = newStartedThread(new CheckedRunnable() { public void realRun() throws InterruptedException { - DelayQueue q = populatedQueue(SIZE); - for (int i = 0; i < SIZE; ++i) { - assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS))); - } + long startTime = System.nanoTime(); + for (int i = 0; i < SIZE; i++) + assertEquals(new PDelay(i), + ((PDelay)q.poll(LONG_DELAY_MS, MILLISECONDS))); Thread.currentThread().interrupt(); try { @@ -436,12 +427,15 @@ public class DelayQueueTest extends JSR1 shouldThrow(); } catch (InterruptedException success) {} assertFalse(Thread.interrupted()); + + assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); }}); await(pleaseInterrupt); - assertThreadStaysAlive(t); + assertThreadBlocks(t, Thread.State.TIMED_WAITING); t.interrupt(); awaitTermination(t); + checkEmpty(q); } /** @@ -450,8 +444,8 @@ public class DelayQueueTest extends JSR1 public void testPeek() { DelayQueue q = populatedQueue(SIZE); for (int i = 0; i < SIZE; ++i) { - assertEquals(new PDelay(i), ((PDelay)q.peek())); - assertEquals(new PDelay(i), ((PDelay)q.poll())); + assertEquals(new PDelay(i), q.peek()); + assertEquals(new PDelay(i), q.poll()); if (q.isEmpty()) assertNull(q.peek()); else @@ -466,7 +460,7 @@ public class DelayQueueTest extends JSR1 public void testElement() { DelayQueue q = populatedQueue(SIZE); for (int i = 0; i < SIZE; ++i) { - assertEquals(new PDelay(i), ((PDelay)q.element())); + assertEquals(new PDelay(i), q.element()); q.poll(); } try { @@ -481,7 +475,7 @@ public class DelayQueueTest extends JSR1 public void testRemove() { DelayQueue q = populatedQueue(SIZE); for (int i = 0; i < SIZE; ++i) { - assertEquals(new PDelay(i), ((PDelay)q.remove())); + assertEquals(new PDelay(i), q.remove()); } try { q.remove(); @@ -509,7 +503,7 @@ public class DelayQueueTest extends JSR1 q.clear(); assertTrue(q.isEmpty()); assertEquals(0, q.size()); - assertEquals(NOCAP, q.remainingCapacity()); + assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); PDelay x = new PDelay(1); q.add(x); assertFalse(q.isEmpty()); @@ -546,7 +540,7 @@ public class DelayQueueTest extends JSR1 assertTrue(changed); assertTrue(q.containsAll(p)); - assertEquals(SIZE-i, q.size()); + assertEquals(SIZE - i, q.size()); p.remove(); } } @@ -559,7 +553,7 @@ public class DelayQueueTest extends JSR1 DelayQueue q = populatedQueue(SIZE); DelayQueue p = populatedQueue(i); assertTrue(q.removeAll(p)); - assertEquals(SIZE-i, q.size()); + assertEquals(SIZE - i, q.size()); for (int j = 0; j < i; ++j) { PDelay x = (PDelay)(p.remove()); assertFalse(q.contains(x)); @@ -614,6 +608,14 @@ public class DelayQueueTest extends JSR1 ++i; } assertEquals(i, SIZE); + assertIteratorExhausted(it); + } + + /** + * iterator of empty collection has no elements + */ + public void testEmptyIterator() { + assertIteratorExhausted(new DelayQueue().iterator()); } /** @@ -649,29 +651,29 @@ public class DelayQueueTest extends JSR1 public void testPollInExecutor() { final DelayQueue q = new DelayQueue(); final CheckedBarrier threadsStarted = new CheckedBarrier(2); - ExecutorService executor = Executors.newFixedThreadPool(2); - executor.execute(new CheckedRunnable() { - public void realRun() throws InterruptedException { - assertNull(q.poll()); - threadsStarted.await(); - assertNotNull(q.poll(LONG_DELAY_MS, MILLISECONDS)); - checkEmpty(q); - }}); - - executor.execute(new CheckedRunnable() { - public void realRun() throws InterruptedException { - threadsStarted.await(); - q.put(new PDelay(1)); - }}); - - joinPool(executor); + final ExecutorService executor = Executors.newFixedThreadPool(2); + try (PoolCleaner cleaner = cleaner(executor)) { + executor.execute(new CheckedRunnable() { + public void realRun() throws InterruptedException { + assertNull(q.poll()); + threadsStarted.await(); + assertNotNull(q.poll(LONG_DELAY_MS, MILLISECONDS)); + checkEmpty(q); + }}); + + executor.execute(new CheckedRunnable() { + public void realRun() throws InterruptedException { + threadsStarted.await(); + q.put(new PDelay(1)); + }}); + } } /** * Delayed actions do not occur until their delay elapses */ public void testDelay() throws InterruptedException { - DelayQueue q = new DelayQueue(); + DelayQueue q = new DelayQueue<>(); for (int i = 0; i < SIZE; ++i) q.add(new NanoDelay(1000000L * (SIZE - i))); @@ -711,7 +713,9 @@ public class DelayQueueTest extends JSR1 public void testTimedPollDelayed() throws InterruptedException { DelayQueue q = new DelayQueue(); q.add(new NanoDelay(LONG_DELAY_MS * 1000000L)); + long startTime = System.nanoTime(); assertNull(q.poll(timeoutMillis(), MILLISECONDS)); + assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); } /** @@ -749,7 +753,7 @@ public class DelayQueueTest extends JSR1 final DelayQueue q = populatedQueue(SIZE); Thread t = new Thread(new CheckedRunnable() { public void realRun() { - q.put(new PDelay(SIZE+1)); + q.put(new PDelay(SIZE + 1)); }}); t.start(); @@ -769,7 +773,7 @@ public class DelayQueueTest extends JSR1 ArrayList l = new ArrayList(); q.drainTo(l, i); int k = (i < SIZE) ? i : SIZE; - assertEquals(SIZE-k, q.size()); + assertEquals(SIZE - k, q.size()); assertEquals(k, l.size()); } }