Examples with ArrayBlockingQueue java.util.concurrent.ArrayBlockingQueue used on opensource projects

Example 21 with ArrayBlockingQueue

use of java.util.concurrent.ArrayBlockingQueue in project mapdb by jankotek.

the class ArrayBlockingQueueTest method testRemove.

/**
     * remove removes next element, or throws NSEE if empty
     */
public void testRemove() {
    ArrayBlockingQueue q = populatedQueue(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(i, q.remove());
    }
    try {
        q.remove();
        shouldThrow();
    } catch (NoSuchElementException success) {
    }
}

Example 22 with ArrayBlockingQueue

use of java.util.concurrent.ArrayBlockingQueue in project mapdb by jankotek.

the class ArrayBlockingQueueTest method testTimedPoll.

/**
     * timed poll with nonzero timeout succeeds when non-empty, else times out
     */
public void testTimedPoll() throws InterruptedException {
    ArrayBlockingQueue q = populatedQueue(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        long startTime = System.nanoTime();
        assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
        assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
    }
    long startTime = System.nanoTime();
    assertNull(q.poll(timeoutMillis(), MILLISECONDS));
    assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
    checkEmpty(q);
}

Example 23 with ArrayBlockingQueue

use of java.util.concurrent.ArrayBlockingQueue in project mapdb by jankotek.

the class ArrayBlockingQueueTest method testRemoveAll.

/**
     * removeAll(c) removes only those elements of c and reports true if changed
     */
public void testRemoveAll() {
    for (int i = 1; i < SIZE; ++i) {
        ArrayBlockingQueue q = populatedQueue(SIZE);
        ArrayBlockingQueue p = populatedQueue(i);
        assertTrue(q.removeAll(p));
        assertEquals(SIZE - i, q.size());
        for (int j = 0; j < i; ++j) {
            Integer x = (Integer) (p.remove());
            assertFalse(q.contains(x));
        }
    }
}

Example 24 with ArrayBlockingQueue

use of java.util.concurrent.ArrayBlockingQueue in project mapdb by jankotek.

the class ArrayBlockingQueueTest method testAddAll3.

/**
     * addAll of a collection with any null elements throws NPE after
     * possibly adding some elements
     */
public void testAddAll3() {
    ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
    Integer[] ints = new Integer[SIZE];
    for (int i = 0; i < SIZE - 1; ++i) ints[i] = new Integer(i);
    try {
        q.addAll(Arrays.asList(ints));
        shouldThrow();
    } catch (NullPointerException success) {
    }
}

Example 25 with ArrayBlockingQueue

use of java.util.concurrent.ArrayBlockingQueue in project mapdb by jankotek.

the class ArrayBlockingQueueTest method testAddAll5.

/**
     * Queue contains all elements, in traversal order, of successful addAll
     */
public void testAddAll5() {
    Integer[] empty = new Integer[0];
    Integer[] ints = new Integer[SIZE];
    for (int i = 0; i < SIZE; ++i) ints[i] = new Integer(i);
    ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
    assertFalse(q.addAll(Arrays.asList(empty)));
    assertTrue(q.addAll(Arrays.asList(ints)));
    for (int i = 0; i < SIZE; ++i) assertEquals(ints[i], q.poll());
}