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

Example 46 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testPoll.

/**
 * poll() succeeds unless empty
 */
public void testPoll() {
    ConcurrentLinkedDeque q = populatedDeque(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(i, q.poll());
    }
    assertNull(q.poll());
}

Example 47 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testFirstElement.

/**
 * getFirst() returns first element, or throws NSEE if empty
 */
public void testFirstElement() {
    ConcurrentLinkedDeque q = populatedDeque(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(i, q.getFirst());
        assertEquals(i, q.pollFirst());
    }
    try {
        q.getFirst();
        shouldThrow();
    } catch (NoSuchElementException success) {
    }
}

Example 48 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testAddAll1.

/**
 * addAll(null) throws NPE
 */
public void testAddAll1() {
    ConcurrentLinkedDeque q = new ConcurrentLinkedDeque();
    try {
        q.addAll(null);
        shouldThrow();
    } catch (NullPointerException success) {
    }
}

Example 49 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testDescendingIterator.

/**
 * Descending iterator iterates through all elements
 */
public void testDescendingIterator() {
    ConcurrentLinkedDeque q = populatedDeque(SIZE);
    int i = 0;
    Iterator it = q.descendingIterator();
    while (it.hasNext()) {
        assertTrue(q.contains(it.next()));
        ++i;
    }
    assertEquals(i, SIZE);
    assertFalse(it.hasNext());
    try {
        it.next();
        shouldThrow();
    } catch (NoSuchElementException success) {
    }
}

Example 50 with ConcurrentLinkedDeque

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

the class ConcurrentLinkedDequeTest method testAddFirstNull.

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