/** @throws Exception If failed. */
public void testPoll() throws Exception {
ConcurrentLinkedDeque8<Integer> deque = new ConcurrentLinkedDeque8<>();
deque.add(1);
deque.add(2);
deque.add(3);
assert !deque.isEmpty();
checkSize(deque, 3);
// Poll 1.
assertEquals(Integer.valueOf(1), deque.poll());
assert !deque.isEmpty();
checkSize(deque, 2);
// Poll 2.
assertEquals(Integer.valueOf(2), deque.poll());
assert !deque.isEmpty();
checkSize(deque, 1);
// Poll 3.
assertEquals(Integer.valueOf(3), deque.poll());
assert deque.isEmpty();
checkSize(deque, 0);
}
public void testUnlinkWithIterator() {
ConcurrentLinkedDeque8<Integer> q = new ConcurrentLinkedDeque8<>();
q.add(1);
Node<Integer> n2 = q.addx(2);
Node<Integer> n3 = q.addx(3);
Node<Integer> n4 = q.addx(4);
Node<Integer> n5 = q.addx(5);
q.add(6);
Iterator<Integer> it = q.iterator();
assertTrue(it.hasNext());
assertEquals(1, it.next().intValue());
assertTrue(it.hasNext());
assertEquals(2, it.next().intValue());
assertTrue(it.hasNext());
assertEquals(3, it.next().intValue());
q.unlinkx(n2);
q.unlinkx(n3);
q.unlinkx(n4);
q.unlinkx(n5);
assertTrue(it.hasNext());
assertEquals(4, it.next().intValue());
assertTrue(it.hasNext());
assertEquals(6, it.next().intValue());
}
public void testUnlinkLastWithIterator() {
ConcurrentLinkedDeque8<Integer> q = new ConcurrentLinkedDeque8<>();
q.add(1);
q.addx(2);
Node<Integer> n3 = q.addx(3);
Iterator<Integer> it = q.iterator();
assertTrue(it.hasNext());
assertEquals(1, it.next().intValue());
q.unlinkx(n3);
assertTrue(it.hasNext());
assertEquals(2, it.next().intValue());
assertFalse(it.hasNext());
}