static void RentCarTest(DateTime rentDate, DateTime returnDate, int carId, int customerId, int Id)
{
RentalManager rentalManager = new RentalManager(new EfRentalDal());
Rental rental = new Rental();
rental.RentDate = rentDate;
rental.ReturnDate = returnDate;
rental.CarId = carId;
rental.CustomerId = customerId;
rental.Id = Id;
rentalManager.CarRentable(carId);
}