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

Example 36 with ArrayDeque

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

the class ArrayDequeTest method testRemoveFirst.

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

Example 37 with ArrayDeque

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

the class ArrayDequeTest method testEmptyIterator.

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

Example 38 with ArrayDeque

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

the class ArrayDequeTest method testClear.

/**
     * clear removes all elements
     */
public void testClear() {
    ArrayDeque q = populatedDeque(SIZE);
    q.clear();
    assertTrue(q.isEmpty());
    assertEquals(0, q.size());
    assertTrue(q.add(new Integer(1)));
    assertFalse(q.isEmpty());
    q.clear();
    assertTrue(q.isEmpty());
}

Example 39 with ArrayDeque

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

the class ArrayDequeTest method testPollLast.

/**
     * pollLast() succeeds unless empty
     */
public void testPollLast() {
    ArrayDeque q = populatedDeque(SIZE);
    for (int i = SIZE - 1; i >= 0; --i) {
        assertEquals(i, q.pollLast());
    }
    assertNull(q.pollLast());
}

Example 40 with ArrayDeque

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

the class ArrayDequeTest method testAddLastNull.

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