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

Example 41 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testEmptyIterator.

/**
 * iterator of empty collection has no elements
 */
public void testEmptyIterator() {
    Deque c = new ConcurrentLinkedDeque();
    assertIteratorExhausted(c.iterator());
    assertIteratorExhausted(c.descendingIterator());
}

Example 42 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testAddAll2.

/**
 * addAll of a collection with null elements throws NPE
 */
public void testAddAll2() {
    ConcurrentLinkedDeque q = new ConcurrentLinkedDeque();
    try {
        q.addAll(Arrays.asList(new Integer[SIZE]));
        shouldThrow();
    } catch (NullPointerException success) {
    }
}

Example 43 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 44 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testPushNull.

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

Example 45 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testPeekFirst.

/**
 * peekFirst() returns next element, or null if empty
 */
public void testPeekFirst() {
    ConcurrentLinkedDeque q = populatedDeque(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(i, q.peekFirst());
        assertEquals(i, q.pollFirst());
        assertTrue(q.peekFirst() == null || !q.peekFirst().equals(i));
    }
    assertNull(q.peekFirst());
}