MinMaxPriorityQueue<Integer> queue = MinMaxPriorityQueue.create();
    assertEquals(11, queue.capacity());
    checkUnbounded(queue);
    checkNatural(queue);
  }

  public void testCreation_comparator() {
    MinMaxPriorityQueue<Integer> queue = MinMaxPriorityQueue.orderedBy(SOME_COMPARATOR).create();
    assertEquals(11, queue.capacity());
    checkUnbounded(queue);