function testUpdateCheckOutStatus()
 {
     $copy_id = 1;
     $patron_id = 1;
     $checkout_status = 0;
     $due_date = "2015-01-01";
     $test_checkout = new Checkout($patron_id, $copy_id, $due_date, $checkout_status);
     $test_checkout->save();
     $test_checkout->updateCheckOutStatus(1);
     $result = $test_checkout->getCheckOutStatus();
     $this->assertEquals(1, $result);
 }