Examples with ArrayDeque java.util.ArrayDeque used on opensource projects

Example 46 with ArrayDeque

use of java.util.ArrayDeque in project mapdb by jankotek.

the class ArrayDequeTest method testRemove.

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

Example 47 with ArrayDeque

use of java.util.ArrayDeque in project mapdb by jankotek.

the class ArrayDequeTest method testAddLast.

/**
     * addLast(x) succeeds
     */
public void testAddLast() {
    ArrayDeque q = new ArrayDeque();
    q.addLast(zero);
    q.addLast(one);
    assertSame(zero, q.peekFirst());
    assertSame(one, q.peekLast());
}

Example 48 with ArrayDeque

use of java.util.ArrayDeque in project mapdb by jankotek.

the class ArrayDequeTest method testOfferNull.

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

Example 49 with ArrayDeque

use of java.util.ArrayDeque in project mapdb by jankotek.

the class ArrayDequeTest method testDescendingIteratorOrdering.

/**
     * Descending iterator ordering is reverse FIFO
     */
public void testDescendingIteratorOrdering() {
    final ArrayDeque q = new ArrayDeque();
    for (int iters = 0; iters < 100; ++iters) {
        q.add(new Integer(3));
        q.add(new Integer(2));
        q.add(new Integer(1));
        int k = 0;
        for (Iterator it = q.descendingIterator(); it.hasNext(); ) {
            assertEquals(++k, it.next());
        }
        assertEquals(3, k);
        q.remove();
        q.remove();
        q.remove();
    }
}

Example 50 with ArrayDeque

use of java.util.ArrayDeque in project mapdb by jankotek.

the class ArrayDequeTest method testOfferFirstNull.

/**
     * offerFirst(null) throws NPE
     */
public void testOfferFirstNull() {
    ArrayDeque q = new ArrayDeque();
    try {
        q.offerFirst(null);
        shouldThrow();
    } catch (NullPointerException success) {
    }
}