public void TestItFailsOnInvalid(string first, string second, string third, int timesCalled)
        {
            sectorElements.Add(
                SectorFactory.Make(
                    arrivalAirports: new List <SectorArrivalAirports>
            {
                SectorArrivalAirportsFactory.Make(new List <string> {
                    first, second
                })
            }
                    )
                );
            sectorElements.Add(
                SectorFactory.Make(
                    arrivalAirports: new List <SectorArrivalAirports>
            {
                SectorArrivalAirportsFactory.Make(new List <string> {
                    second, third
                })
            }
                    )
                );

            AssertValidationErrors(timesCalled);
        }
        public void TestItPassesOnAllValid(string first, string second, string third)
        {
            sectorElements.Add(
                SectorFactory.Make(
                    arrivalAirports: new List <SectorArrivalAirports>
            {
                SectorArrivalAirportsFactory.Make(new List <string> {
                    first, second
                })
            }
                    )
                );
            sectorElements.Add(
                SectorFactory.Make(
                    arrivalAirports: new List <SectorArrivalAirports>
            {
                SectorArrivalAirportsFactory.Make(new List <string> {
                    second, third
                })
            }
                    )
                );

            AssertNoValidationErrors();
        }