assertTrue(q.size() ==  0);
if (q.size() == 0) throw new IllegalArgumentException("q.size() returns 0 for 3");
	public void testQueue() {		assertEquals(q.q_take(), "One");		assertEquals(q.q_take(), "Two");		q.q_add("Three");		assertEquals(q.q_take(), "Three");		assertTrue(q.size() ==  0);		System.out.println("DONE");	}