public void MakeListTickets_UfSaveChages_Once()
        {
            //arange
            var ticketsDto = new List <TicketDto>
            {
                new TicketDto {
                    Id = 1, FlightId = 1, IsSold = false, PlaseNumber = 1, FlightNumber = "TY26", Price = 200
                },
                new TicketDto {
                    Id = 2, FlightId = 1, IsSold = false, PlaseNumber = 2, FlightNumber = "TY26", Price = 200
                },
                new TicketDto {
                    Id = 3, FlightId = 1, IsSold = true, PlaseNumber = 3, FlightNumber = "QW11", Price = 200
                },
                new TicketDto {
                    Id = 4, FlightId = 1, IsSold = true, PlaseNumber = 4, FlightNumber = "QW11", Price = 200
                }
            };

            TicketsService ts = new TicketsService(unitOfWork, mapper, validator);

            //act
            ts.Make(ticketsDto);

            //assert
            A.CallTo(() => unitOfWork.SaveChages()).MustHaveHappened(Repeated.Exactly.Once);
        }