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

Example 1 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testOfferNull.

/**
     * offer(null) throws NPE
     */
public void testOfferNull() {
    ConcurrentLinkedDeque q = new ConcurrentLinkedDeque();
    try {
        q.offer(null);
        shouldThrow();
    } catch (NullPointerException success) {
    }
}

Example 2 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testContains.

/**
     * contains(x) reports true when elements added but not yet removed
     */
public void testContains() {
    ConcurrentLinkedDeque q = populatedDeque(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        assertTrue(q.contains(new Integer(i)));
        q.poll();
        assertFalse(q.contains(new Integer(i)));
    }
}

Example 3 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testIterator.

/**
     * Iterator iterates through all elements
     */
public void testIterator() {
    ConcurrentLinkedDeque q = populatedDeque(SIZE);
    Iterator it = q.iterator();
    int i;
    for (i = 0; it.hasNext(); i++) assertTrue(q.contains(it.next()));
    assertEquals(i, SIZE);
    assertIteratorExhausted(it);
}

Example 4 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testEmpty.

/**
     * isEmpty is true before add, false after
     */
public void testEmpty() {
    ConcurrentLinkedDeque q = new ConcurrentLinkedDeque();
    assertTrue(q.isEmpty());
    q.add(one);
    assertFalse(q.isEmpty());
    q.add(two);
    q.remove();
    q.remove();
    assertTrue(q.isEmpty());
}

Example 5 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testRemove.

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