public IActionResult PutCheckOut(int id, [FromBody] CheckInCheckOut checkInCheckOut)
        {
            var checkoutDoBanco = _context.CheckInCheckOuts.SingleOrDefault(e => e.Id == checkInCheckOut.Id);

            checkInCheckOut.CheckOut();
            checkoutDoBanco.DateTimeExit = checkInCheckOut.DateTimeExit;

            _context.SaveChanges();

            return(NoContent());
        }
        public void CheckOut()
        {
            int id                 = 1;
            int idAlien            = 1;
            int idBallad           = 1;
            int?idObjectNotAllowed = null;

            var checkInCheckOut = new CheckInCheckOut(id, idAlien, idBallad, idObjectNotAllowed);

            checkInCheckOut.CheckOut();

            Assert.True(checkInCheckOut.DateTimeExit != null);
        }