@Test
public void empty() {

    System.out.println("testEmpty");
    while (!queue.empty())
        System.out.println(queue.get());
    String msg = "";
    try {
        queue.get();
    } catch (CircularQueueException e) {
        msg = e.getMessage();
        System.out.println(msg);
    }
    assertEquals(msg, "get() from empty CircularQueue");
    showEmptiness();
}