public void GetAllVacantSpaces(int jumboV, int jumboO, int jetV, int jetO, int propV, int propO, int expected)
{
var parkingService = new ParkingService(CreateParking(jumboV, jumboO, jetV, jetO, propV, propO));
var result = parkingService.GetAllVacantParkingSpaces();
Assert.Equal(expected, result.Count);
}