final Queue queue=new Queue();
List<String> l=new ArrayList<String>();
l.add("one");
l.add("two");
l.add("three");
queue.addAll(l);
System.out.println("queue is " + queue);
assert queue.size() == 3;
assert queue.remove().equals("one");
assert queue.size() == 2;
assert queue.remove().equals("two");