Пример #1
0
        public void CompactPositionReporting_Encode_Produces_Correct_Results_For_CPR101_Tables()
        {
            // The values for this test are all taken directly from the transition latitude test tables in 1090-WP30-12 Proposed New Appendix CPR101.
            var worksheet = new ExcelWorksheetData(TestContext);

            var numberOfBits     = worksheet.Byte("Bits");
            var oddFormat        = worksheet.Bool("OddFormat");
            var latitude         = worksheet.Double("Latitude");
            var longitude        = worksheet.Double("Longitude");
            var globalCoordinate = new GlobalCoordinate(latitude, longitude);

            var expectedLatitude  = Convert.ToInt32(worksheet.String("ExpectedLatitude"), 16);
            var expectedLongitude = Convert.ToInt32(worksheet.String("ExpectedLongitude"), 16);
            var dataRow           = worksheet.Int("DataRow"); // helps set conditional breakpoints, VSTS doesn't always process rows in ascending order as they appear in the worksheet

            // In testing some of the input latitudes and longitudes couldn't produce the expected results from table 6-1 etc. of 1090-WP30-12 because of small
            // rounding errors in the handling of doubles. Switching to decimals didn't help and it would make the code slower because the FPU doesn't work with
            // decimals. So the "RELatitude" and "RELongitude" columns were added - if they are empty then the code is expected to produce the values in
            // the Expected columns, which corresponds with the test results from 1090-WP30-12, but if they contain values then these are the actual results after
            // the rounding error has had its wicked way. In most cases they are 1 out for latitude but that can move the resolved latitude into a different NL and produce
            // a large difference in longitude. There are very few of these anomalies, they represent errors of a few feet and as this isn't going into an aircraft I can't
            // say I'm too bothered about them. However I do want them to be obvious in the test data, hence the reason for adding new columns rather than just changing
            // the expected results.
            int?reLatitude  = null;
            int?reLongitude = null;

            if (worksheet.String("RELatitude") != null)
            {
                reLatitude  = Convert.ToInt32(worksheet.String("RELatitude"), 16);
                reLongitude = Convert.ToInt32(worksheet.String("RELongitude"), 16);
            }

            var coordinate = _Cpr.Encode(globalCoordinate, oddFormat, numberOfBits);

            Assert.AreEqual(reLatitude ?? expectedLatitude, coordinate.Latitude);
            Assert.AreEqual(reLongitude ?? expectedLongitude, coordinate.Longitude);
            Assert.AreEqual(numberOfBits, coordinate.NumberOfBits);
            Assert.AreEqual(oddFormat, coordinate.OddFormat);
        }
Пример #2
0
        public void CompactPositionReporting_LocalDecode_Produces_Correct_Results_For_CPR101_Tables()
        {
            // The values for this test are all taken directly from the transition latitude test tables in 1090-WP30-12 Proposed New Appendix CPR101
            var worksheet = new ExcelWorksheetData(TestContext);

            var numberOfBits      = worksheet.Byte("Bits");
            var oddFormat         = worksheet.Bool("OddFormat");
            var encodedLatitude   = Convert.ToInt32(worksheet.String("ExpectedLatitude"), 16);
            var encodedLongitude  = Convert.ToInt32(worksheet.String("ExpectedLongitude"), 16);
            var expectedLatitude  = worksheet.Double("Latitude");
            var expectedLongitude = worksheet.Double("Longitude");
            var cprCoordinate     = new CompactPositionReportingCoordinate(encodedLatitude, encodedLongitude, oddFormat, numberOfBits);

            // The reference latitude and longitude is set to roughly 50km of the expected latitude and longitude
            double?referenceLatitude, referenceLongitude;

            GreatCircleMaths.Destination(expectedLatitude, expectedLongitude, 45, 50, out referenceLatitude, out referenceLongitude);
            var referenceCoordinate = new GlobalCoordinate(referenceLatitude.Value, referenceLongitude.Value);

            var dataRow = worksheet.Int("DataRow"); // helps set conditional breakpoints, VSTS doesn't always process rows in ascending order as they appear in the worksheet

            var decodedCoordinate = _Cpr.LocalDecode(cprCoordinate, referenceCoordinate);

            // We need to accept 180 and -180 as being the same longitude, taking into account rounding errors
            if (expectedLongitude == -180.0 && decodedCoordinate.Longitude > 179.9999999999)
            {
                expectedLongitude = 180.0;
            }
            else if (expectedLongitude == 180.0 && decodedCoordinate.Longitude < -179.9999999999)
            {
                expectedLongitude = -180.0;
            }

            Assert.AreEqual(expectedLatitude, decodedCoordinate.Latitude, 0.0008);           // The CPR tables cover all latitudes, sometimes the rounding introduced by selecting the midpoint of a zone can be quite large
            Assert.AreEqual(expectedLongitude, decodedCoordinate.Longitude, 0.000000000001); // This can have a lower tolerance as the CPR101 tables aren't testing longitude zone boundaries so much
        }
        public void CompactPositionReporting_Encode_Produces_Correct_Results_For_CPR101_Tables()
        {
            // The values for this test are all taken directly from the transition latitude test tables in 1090-WP30-12 Proposed New Appendix CPR101.
            var worksheet = new ExcelWorksheetData(TestContext);

            var numberOfBits = worksheet.Byte("Bits");
            var oddFormat = worksheet.Bool("OddFormat");
            var latitude = worksheet.Double("Latitude");
            var longitude = worksheet.Double("Longitude");
            var globalCoordinate = new GlobalCoordinate(latitude, longitude);

            var expectedLatitude = Convert.ToInt32(worksheet.String("ExpectedLatitude"), 16);
            var expectedLongitude = Convert.ToInt32(worksheet.String("ExpectedLongitude"), 16);
            var dataRow = worksheet.Int("DataRow"); // helps set conditional breakpoints, VSTS doesn't always process rows in ascending order as they appear in the worksheet

            // In testing some of the input latitudes and longitudes couldn't produce the expected results from table 6-1 etc. of 1090-WP30-12 because of small
            // rounding errors in the handling of doubles. Switching to decimals didn't help and it would make the code slower because the FPU doesn't work with
            // decimals. So the "RELatitude" and "RELongitude" columns were added - if they are empty then the code is expected to produce the values in
            // the Expected columns, which corresponds with the test results from 1090-WP30-12, but if they contain values then these are the actual results after
            // the rounding error has had its wicked way. In most cases they are 1 out for latitude but that can move the resolved latitude into a different NL and produce
            // a large difference in longitude. There are very few of these anomalies, they represent errors of a few feet and as this isn't going into an aircraft I can't
            // say I'm too bothered about them. However I do want them to be obvious in the test data, hence the reason for adding new columns rather than just changing
            // the expected results.
            int? reLatitude = null;
            int? reLongitude = null;
            if(worksheet.String("RELatitude") != null) {
                reLatitude = Convert.ToInt32(worksheet.String("RELatitude"), 16);
                reLongitude = Convert.ToInt32(worksheet.String("RELongitude"), 16);
            }

            var coordinate = _Cpr.Encode(globalCoordinate, oddFormat, numberOfBits);
            Assert.AreEqual(reLatitude ?? expectedLatitude, coordinate.Latitude);
            Assert.AreEqual(reLongitude ?? expectedLongitude, coordinate.Longitude);
            Assert.AreEqual(numberOfBits, coordinate.NumberOfBits);
            Assert.AreEqual(oddFormat, coordinate.OddFormat);
        }
        public void AdsbTranslator_Translate_Decodes_Messages_Correctly()
        {
            var worksheet = new ExcelWorksheetData(TestContext);
            var expectedValue = new SpreadsheetFieldValue(worksheet, 17);

            var bits = worksheet.String("ExtendedSquitterMessage");
            var bytes = TestUtilities.ConvertBitStringToBytes(bits);
            var df = worksheet.String("DF");

            int countTestsPerformed = 0;
            for(var modeSDownlinkFormats = 0;modeSDownlinkFormats < 5;++modeSDownlinkFormats) {
                DownlinkFormat downlinkFormat = DownlinkFormat.ShortAirToAirSurveillance;
                ControlField? controlField = null;
                ApplicationField? applicationField = null;
                switch(modeSDownlinkFormats) {
                    case 0: downlinkFormat = DownlinkFormat.ExtendedSquitter; break;
                    case 1: downlinkFormat = DownlinkFormat.ExtendedSquitterNonTransponder; controlField = ControlField.AdsbDeviceTransmittingIcao24; break;
                    case 2: downlinkFormat = DownlinkFormat.ExtendedSquitterNonTransponder; controlField = ControlField.AdsbDeviceNotTransmittingIcao24; break;
                    case 3: downlinkFormat = DownlinkFormat.ExtendedSquitterNonTransponder; controlField = ControlField.AdsbRebroadcastOfExtendedSquitter; break;
                    case 4: downlinkFormat = DownlinkFormat.MilitaryExtendedSquitter; applicationField = ApplicationField.ADSB; break;
                }
                if(df != "ALL") {
                    if((int)downlinkFormat != worksheet.Int("DF")) continue;
                    if((int?)controlField != worksheet.NInt("CF")) continue;
                    if((int?)applicationField != worksheet.NInt("AF")) continue;
                }
                ++countTestsPerformed;

                TestCleanup();
                TestInitialise();

                _ModeSMessage.DownlinkFormat = downlinkFormat;
                _ModeSMessage.ControlField = controlField;
                _ModeSMessage.ApplicationField = applicationField;
                _ModeSMessage.ExtendedSquitterMessage = bytes.ToArray();

                var message = _Translator.Translate(_ModeSMessage);
                var failMessage = String.Format("Failed for DF:{0} CF:{1} AF:{2}", (int)_ModeSMessage.DownlinkFormat, (int?)_ModeSMessage.ControlField, (int?)_ModeSMessage.ApplicationField);

                var countMessageObjects = 0;
                object subMessage = null;
                if(message.AirbornePosition != null)            { ++countMessageObjects; subMessage = message.AirbornePosition; }
                if(message.SurfacePosition != null)             { ++countMessageObjects; subMessage = message.SurfacePosition; }
                if(message.IdentifierAndCategory != null)       { ++countMessageObjects; subMessage = message.IdentifierAndCategory; }
                if(message.AirborneVelocity != null)            { ++countMessageObjects; subMessage = message.AirborneVelocity; }
                if(message.AircraftStatus != null)              { ++countMessageObjects; subMessage = message.AircraftStatus; }
                if(message.TargetStateAndStatus != null)        { ++countMessageObjects; subMessage = message.TargetStateAndStatus; }
                if(message.AircraftOperationalStatus != null)   { ++countMessageObjects; subMessage = message.AircraftOperationalStatus; }
                Assert.AreEqual(1, countMessageObjects, failMessage);

                // Extract values that can appear on more than one message type
                CompactPositionReportingCoordinate cpr = null;
                bool? posTime = null;
                EmergencyState? emergencyState = null;
                byte? nacP = null;
                bool? nicBaro = null;
                byte? sil = null;
                bool? silSupplement = null;
                bool? isRebroadcast = null;
                if(message.AirbornePosition != null) {
                    cpr = message.AirbornePosition.CompactPosition;
                    posTime = message.AirbornePosition.PositionTimeIsExact;
                } else if(message.SurfacePosition != null) {
                    cpr = message.SurfacePosition.CompactPosition;
                    posTime = message.SurfacePosition.PositionTimeIsExact;
                } else if(message.AircraftStatus != null && message.AircraftStatus.EmergencyStatus != null) {
                    emergencyState = message.AircraftStatus.EmergencyStatus.EmergencyState;
                } else if(message.TargetStateAndStatus != null && message.TargetStateAndStatus.Version1 != null) {
                    nacP = message.TargetStateAndStatus.Version1.NacP;
                    nicBaro = message.TargetStateAndStatus.Version1.NicBaro;
                    sil = message.TargetStateAndStatus.Version1.Sil;
                    emergencyState = message.TargetStateAndStatus.Version1.EmergencyState;
                } else if(message.TargetStateAndStatus != null && message.TargetStateAndStatus.Version2 != null) {
                    nacP = message.TargetStateAndStatus.Version2.NacP;
                    nicBaro = message.TargetStateAndStatus.Version2.NicBaro;
                    sil = message.TargetStateAndStatus.Version2.Sil;
                    silSupplement = message.TargetStateAndStatus.Version2.SilSupplement;
                    isRebroadcast = message.TargetStateAndStatus.Version2.IsRebroadcast;
                } else if(message.AircraftOperationalStatus != null) {
                    nacP = message.AircraftOperationalStatus.NacP;
                    nicBaro = message.AircraftOperationalStatus.NicBaro;
                    sil = message.AircraftOperationalStatus.Sil;
                    silSupplement = message.AircraftOperationalStatus.SilSupplement;
                    isRebroadcast = message.AircraftOperationalStatus.IsRebroadcast;
                }

                // Extract the full list of properties to check
                var checkProperties = message.GetType().GetProperties().AsQueryable();
                checkProperties = checkProperties.Concat(subMessage.GetType().GetProperties());
                if(message.AircraftStatus != null) {
                    switch(message.AircraftStatus.AircraftStatusType) {
                        case AircraftStatusType.EmergencyStatus:
                            checkProperties = checkProperties.Concat(message.AircraftStatus.EmergencyStatus.GetType().GetProperties());
                            break;
                        case AircraftStatusType.TcasResolutionAdvisoryBroadcast:
                            checkProperties = checkProperties.Concat(message.AircraftStatus.TcasResolutionAdvisory.GetType().GetProperties());
                            break;
                    }
                }
                if(message.TargetStateAndStatus != null) {
                    switch(message.TargetStateAndStatus.TargetStateAndStatusType) {
                        case TargetStateAndStatusType.Version1: checkProperties = checkProperties.Concat(message.TargetStateAndStatus.Version1.GetType().GetProperties()); break;
                        case TargetStateAndStatusType.Version2: checkProperties = checkProperties.Concat(message.TargetStateAndStatus.Version2.GetType().GetProperties()); break;
                    }
                }

                Assert.IsNotNull(message, failMessage);
                foreach(var messageProperty in checkProperties) {
                    switch(messageProperty.Name) {
                        case "AdsbVersion":                         Assert.AreEqual(expectedValue.GetNByte("V"), message.AircraftOperationalStatus.AdsbVersion, failMessage); break;
                        case "AirborneCapability":                  Assert.AreEqual(expectedValue.GetNInt("AC", true), (int?)message.AircraftOperationalStatus.AirborneCapability, failMessage); break;
                        case "AirbornePosition":                    break;
                        case "AirborneVelocity":                    break;
                        case "AircraftOperationalStatus":           break;
                        case "AircraftOperationalStatusType":       Assert.AreEqual(expectedValue.GetEnum<AircraftOperationalStatusType>("AST"), message.AircraftOperationalStatus.AircraftOperationalStatusType, failMessage); break;
                        case "AircraftStatus":                      break;
                        case "AircraftStatusType":                  Assert.AreEqual(expectedValue.GetEnum<AircraftStatusType>("AST"), message.AircraftStatus.AircraftStatusType, failMessage); break;
                        case "Airspeed":                            Assert.AreEqual(expectedValue.GetNDouble("AS"), message.AirborneVelocity.Airspeed, failMessage); break;
                        case "AirspeedExceeded":                    Assert.AreEqual(expectedValue.GetNBool("AS:M"), message.AirborneVelocity.AirspeedExceeded, failMessage); break;
                        case "AirspeedIsTrueAirspeed":              Assert.AreEqual(expectedValue.GetNBool("AST"), message.AirborneVelocity.AirspeedIsTrueAirspeed, failMessage); break;
                        case "AltitudesAreMeanSeaLevel":            Assert.AreEqual(expectedValue.GetNBool("VMSL"), message.TargetStateAndStatus.Version1.AltitudesAreMeanSeaLevel, failMessage); break;
                        case "BarometricAltitude":                  Assert.AreEqual(expectedValue.GetNInt("BA"), message.AirbornePosition.BarometricAltitude, failMessage); break;
                        case "BarometricPressureSetting":           Assert.AreEqual(expectedValue.GetNFloat("QNH"), message.TargetStateAndStatus.Version2.BarometricPressureSetting, failMessage); break;
                        case "ChangeOfIntent":                      Assert.AreEqual(expectedValue.GetNBool("IC"), message.AirborneVelocity.ChangeOfIntent, failMessage); break;
                        case "CompactPosition":                     Assert.AreEqual(expectedValue.GetString("CPR"), cpr == null ? null : cpr.ToString(), failMessage); break;
                        case "EmergencyState":                      Assert.AreEqual(expectedValue.GetEnum<EmergencyState>("ES"), emergencyState, failMessage); break;
                        case "EmergencyStatus":                     if(message.AircraftStatus.AircraftStatusType != AircraftStatusType.EmergencyStatus) Assert.IsNull(message.AircraftStatus.EmergencyStatus); break;
                        case "EmitterCategory":                     Assert.AreEqual(GetExpectedEmitterCategory(expectedValue), message.IdentifierAndCategory.EmitterCategory, failMessage); break;
                        case "FormattedThreatIcao24":               break;
                        case "GeometricAltitude":                   Assert.AreEqual(expectedValue.GetNInt("GA"), message.AirbornePosition.GeometricAltitude, failMessage); break;
                        case "GeometricAltitudeDelta":              Assert.AreEqual(expectedValue.GetNShort("DBA"), message.AirborneVelocity.GeometricAltitudeDelta, failMessage); break;
                        case "GeometricAltitudeDeltaExceeded":      Assert.AreEqual(expectedValue.GetNBool("DBA:M"), message.AirborneVelocity.GeometricAltitudeDeltaExceeded, failMessage); break;
                        case "GroundSpeed":                         Assert.AreEqual(expectedValue.GetNDouble("GSPD"), message.SurfacePosition.GroundSpeed, failMessage); break;
                        case "GroundSpeedExceeded":                 Assert.AreEqual(expectedValue.GetNBool("GSPD:M"), message.SurfacePosition.GroundSpeedExceeded, failMessage); break;
                        case "GroundTrack":                         Assert.AreEqual(expectedValue.GetNDouble("GTRK"), message.SurfacePosition.GroundTrack, failMessage); break;
                        case "Gva":                                 Assert.AreEqual(expectedValue.GetNByte("GVA"), message.AircraftOperationalStatus.Gva, failMessage); break;
                        case "Heading":                             Assert.AreEqual(expectedValue.GetNDouble("HDG"), message.AirborneVelocity.Heading, failMessage); break;
                        case "HorizontalDataSource":                Assert.AreEqual(expectedValue.GetEnum<HorizontalDataSource>("HDS"), message.TargetStateAndStatus.Version1.HorizontalDataSource, failMessage); break;
                        case "HorizontalModeIndicator":             Assert.AreEqual(expectedValue.GetEnum<HorizontalModeIndicator>("HMI"), message.TargetStateAndStatus.Version1.HorizontalModeIndicator, failMessage); break;
                        case "HorizontalReferenceIsMagneticNorth":  Assert.AreEqual(expectedValue.GetNBool("HRD"), message.AircraftOperationalStatus.HorizontalReferenceIsMagneticNorth, failMessage); break;
                        case "HorizontalVelocityError":             Assert.AreEqual(expectedValue.GetNFloat("NAC"), message.AirborneVelocity.HorizontalVelocityError, failMessage); break;
                        case "Identification":                      Assert.AreEqual(expectedValue.GetString("ID"), message.IdentifierAndCategory.Identification, failMessage); break;
                        case "IdentifierAndCategory":               break;
                        case "IsAltitudeHoldActive":                Assert.AreEqual(expectedValue.GetNBool("ALTH"), message.TargetStateAndStatus.Version2.IsAltitudeHoldActive, failMessage); break;
                        case "IsApproachModeActive":                Assert.AreEqual(expectedValue.GetNBool("APP"), message.TargetStateAndStatus.Version2.IsApproachModeActive, failMessage); break;
                        case "IsAutopilotEngaged":                  Assert.AreEqual(expectedValue.GetNBool("APE"), message.TargetStateAndStatus.Version2.IsAutopilotEngaged, failMessage); break;
                        case "IsLnavEngaged":                       Assert.AreEqual(expectedValue.GetNBool("LNAV"), message.TargetStateAndStatus.Version2.IsLnavEngaged, failMessage); break;
                        case "IsRebroadcast":                       Assert.AreEqual(expectedValue.GetNBool("ADSR"), isRebroadcast, failMessage); break;
                        case "IsReversing":                         Assert.AreEqual(expectedValue.GetNBool("REV"), message.SurfacePosition.IsReversing, failMessage); break;
                        case "IsTcasOperational":                   Assert.AreEqual(expectedValue.GetNBool("TCOP"), message.TargetStateAndStatus.Version2.IsTcasOperational, failMessage); break;
                        case "IsVnavEngaged":                       Assert.AreEqual(expectedValue.GetNBool("VNAV"), message.TargetStateAndStatus.Version2.IsVnavEngaged, failMessage); break;
                        case "LateralAxisGpsOffset":                Assert.AreEqual(expectedValue.GetNShort("GLAT"), message.AircraftOperationalStatus.LateralAxisGpsOffset, failMessage); break;
                        case "LongitudinalAxisGpsOffset":           Assert.AreEqual(expectedValue.GetNByte("GLNG"), message.AircraftOperationalStatus.LongitudinalAxisGpsOffset, failMessage); break;
                        case "MaximumLength":                       Assert.AreEqual(expectedValue.GetNFloat("MLN"), message.AircraftOperationalStatus.MaximumLength, failMessage); break;
                        case "MaximumWidth":                        Assert.AreEqual(expectedValue.GetNFloat("MWD"), message.AircraftOperationalStatus.MaximumWidth, failMessage); break;
                        case "MessageFormat":                       Assert.AreEqual(worksheet.ParseEnum<MessageFormat>("MessageFormat"), message.MessageFormat, failMessage); break;
                        case "ModeSMessage":                        Assert.AreSame(_ModeSMessage, message.ModeSMessage, failMessage); break;
                        case "MultipleThreatEncounter":             Assert.AreEqual(expectedValue.GetNBool("MTE"), message.AircraftStatus.TcasResolutionAdvisory.MultipleThreatEncounter, failMessage); break;
                        case "MultipleThreatResolutionAdvisory":    Assert.AreEqual(expectedValue.GetNShort("ARA-M", true), (short?)message.AircraftStatus.TcasResolutionAdvisory.MultipleThreatResolutionAdvisory, failMessage); break;
                        case "NacP":                                Assert.AreEqual(expectedValue.GetNByte("NACP"), nacP, failMessage); break;
                        case "NicA":                                Assert.AreEqual(expectedValue.GetNByte("NICA"), message.AircraftOperationalStatus.NicA, failMessage); break;
                        case "NicB":                                Assert.AreEqual(expectedValue.GetNByte("NICB"), message.AirbornePosition.NicB, failMessage); break;
                        case "NicC":                                Assert.AreEqual(expectedValue.GetNByte("NICC"), message.AircraftOperationalStatus.NicC, failMessage); break;
                        case "NicBaro":                             Assert.AreEqual(expectedValue.GetNBool("NICBA"), nicBaro, failMessage); break;
                        case "OperationalMode":                     Assert.AreEqual(expectedValue.GetNInt("OM", true), (int?)message.AircraftOperationalStatus.OperationalMode, failMessage); break;
                        case "PositionTimeIsExact":                 Assert.AreEqual(expectedValue.GetNBool("TI"), posTime, failMessage); break;
                        case "ResolutionAdvisoryComplement":        Assert.AreEqual(expectedValue.GetNByte("RAC", true), (byte?)message.AircraftStatus.TcasResolutionAdvisory.ResolutionAdvisoryComplement, failMessage); break;
                        case "ResolutionAdvisoryTerminated":        Assert.AreEqual(expectedValue.GetNBool("RAT"), message.AircraftStatus.TcasResolutionAdvisory.ResolutionAdvisoryTerminated, failMessage); break;
                        case "SelectedAltitude":                    Assert.AreEqual(expectedValue.GetNInt("ALT"), message.TargetStateAndStatus.Version2.SelectedAltitude, failMessage); break;
                        case "SelectedAltitudeIsFms":               Assert.AreEqual(expectedValue.GetNBool("ALTF"), message.TargetStateAndStatus.Version2.SelectedAltitudeIsFms, failMessage); break;
                        case "SelectedHeading":                     Assert.AreEqual(expectedValue.GetNDouble("HDG"), message.TargetStateAndStatus.Version2.SelectedHeading, failMessage); break;
                        case "Sil":                                 Assert.AreEqual(expectedValue.GetNByte("SIL"), sil, failMessage); break;
                        case "SilSupplement":                       Assert.AreEqual(expectedValue.GetNBool("SILP"), silSupplement, failMessage); break;
                        case "SingleThreatResolutionAdvisory":      Assert.AreEqual(expectedValue.GetNShort("ARA-S", true), (short?)message.AircraftStatus.TcasResolutionAdvisory.SingleThreatResolutionAdvisory, failMessage); break;
                        case "Squawk":                              Assert.AreEqual(expectedValue.GetNShort("SQK"), message.AircraftStatus.EmergencyStatus.Squawk, failMessage); break;
                        case "SurfacePositionAngleIsTrack":         Assert.AreEqual(expectedValue.GetNBool("SPT"), message.AircraftOperationalStatus.SurfacePositionAngleIsTrack, failMessage); break;
                        case "SurfaceCapability":                   Assert.AreEqual(expectedValue.GetNInt("SC", true), (int?)message.AircraftOperationalStatus.SurfaceCapability, failMessage); break;
                        case "SurfacePosition":                     break;
                        case "SurveillanceStatus":                  Assert.AreEqual(expectedValue.GetEnum<SurveillanceStatus>("SS"), message.AirbornePosition.SurveillanceStatus, failMessage); break;
                        case "SystemDesignAssurance":               Assert.AreEqual(expectedValue.GetEnum<SystemDesignAssurance>("SDA"), message.AircraftOperationalStatus.SystemDesignAssurance, failMessage); break;
                        case "TargetAltitude":                      Assert.AreEqual(expectedValue.GetNInt("ALT"), message.TargetStateAndStatus.Version1.TargetAltitude, failMessage); break;
                        case "TargetAltitudeCapability":            Assert.AreEqual(expectedValue.GetEnum<TargetAltitudeCapability>("TAC"), message.TargetStateAndStatus.Version1.TargetAltitudeCapability, failMessage); break;
                        case "TargetHeading":                       Assert.AreEqual(expectedValue.GetNShort("HDG"), message.TargetStateAndStatus.Version1.TargetHeading, failMessage); break;
                        case "TargetHeadingIsTrack":                Assert.AreEqual(expectedValue.GetNBool("HDG-T"), message.TargetStateAndStatus.Version1.TargetHeadingIsTrack, failMessage); break;
                        case "TargetStateAndStatus":                break;
                        case "TargetStateAndStatusType":            Assert.AreEqual(expectedValue.GetEnum<TargetStateAndStatusType>("TST"), message.TargetStateAndStatus.TargetStateAndStatusType, failMessage); break;
                        case "TcasCapabilityMode":                  Assert.AreEqual(expectedValue.GetEnum<TcasCapabilityMode>("TCC"), message.TargetStateAndStatus.Version1.TcasCapabilityMode, failMessage); break;
                        case "TcasResolutionAdvisory":              if(message.AircraftStatus.AircraftStatusType != AircraftStatusType.TcasResolutionAdvisoryBroadcast) Assert.IsNull(message.AircraftStatus.TcasResolutionAdvisory); break;
                        case "ThreatAltitude":                      Assert.AreEqual(expectedValue.GetNInt("TID-A"), message.AircraftStatus.TcasResolutionAdvisory.ThreatAltitude, failMessage); break;
                        case "ThreatBearing":                       Assert.AreEqual(expectedValue.GetNShort("TID-B"), message.AircraftStatus.TcasResolutionAdvisory.ThreatBearing, failMessage); break;
                        case "ThreatIcao24":                        Assert.AreEqual(expectedValue.GetNInt("TID", true), message.AircraftStatus.TcasResolutionAdvisory.ThreatIcao24, failMessage); break;
                        case "ThreatRange":                         Assert.AreEqual(expectedValue.GetNFloat("TID-R"), message.AircraftStatus.TcasResolutionAdvisory.ThreatRange, failMessage); break;
                        case "ThreatRangeExceeded":                 Assert.AreEqual(expectedValue.GetNBool("TID-R:M"), message.AircraftStatus.TcasResolutionAdvisory.ThreatRangeExceeded, failMessage); break;
                        case "Type":                                Assert.AreEqual(worksheet.Byte("Type"), message.Type, failMessage); break;
                        case "VectorVelocity":                      Assert.AreEqual(expectedValue.GetString("VV"), message.AirborneVelocity.VectorVelocity == null ? null : message.AirborneVelocity.VectorVelocity.ToString(), failMessage); break;
                        case "VelocityType":                        Assert.AreEqual(expectedValue.GetEnum<VelocityType>("VT"), message.AirborneVelocity.VelocityType, failMessage); break;
                        case "Version1":                            if(message.TargetStateAndStatus.TargetStateAndStatusType != TargetStateAndStatusType.Version1) Assert.IsNull(message.TargetStateAndStatus.Version1); break;
                        case "Version2":                            if(message.TargetStateAndStatus.TargetStateAndStatusType != TargetStateAndStatusType.Version2) Assert.IsNull(message.TargetStateAndStatus.Version2); break;
                        case "VerticalDataSource":                  Assert.AreEqual(expectedValue.GetEnum<VerticalDataSource>("VDS"), message.TargetStateAndStatus.Version1.VerticalDataSource, failMessage); break;
                        case "VerticalModeIndicator":               Assert.AreEqual(expectedValue.GetEnum<VerticalModeIndicator>("VMI"), message.TargetStateAndStatus.Version1.VerticalModeIndicator, failMessage); break;
                        case "VerticalRate":                        Assert.AreEqual(expectedValue.GetNInt("VSI"), message.AirborneVelocity.VerticalRate, failMessage); break;
                        case "VerticalRateExceeded":                Assert.AreEqual(expectedValue.GetNBool("VSI:M"), message.AirborneVelocity.VerticalRateExceeded, failMessage); break;
                        case "VerticalRateIsBarometric":            Assert.AreEqual(expectedValue.GetNBool("SBV"), message.AirborneVelocity.VerticalRateIsBarometric, failMessage); break;
                        default:                                    Assert.Fail("Code needs to be added to check the {0} property", messageProperty.Name); break;
                    }
                }
            }

            Assert.AreNotEqual(0, countTestsPerformed, "DF{0}/CF{1}/AF{2} is not valid, no tests were performed", worksheet.String("DF"), worksheet.String("CF"), worksheet.String("AF"));
        }
        public void CompactPositionReporting_LocalDecode_Produces_Correct_Results_For_CPR101_Tables()
        {
            // The values for this test are all taken directly from the transition latitude test tables in 1090-WP30-12 Proposed New Appendix CPR101
            var worksheet = new ExcelWorksheetData(TestContext);

            var numberOfBits = worksheet.Byte("Bits");
            var oddFormat = worksheet.Bool("OddFormat");
            var encodedLatitude = Convert.ToInt32(worksheet.String("ExpectedLatitude"), 16);
            var encodedLongitude = Convert.ToInt32(worksheet.String("ExpectedLongitude"), 16);
            var expectedLatitude = worksheet.Double("Latitude");
            var expectedLongitude = worksheet.Double("Longitude");
            var cprCoordinate = new CompactPositionReportingCoordinate(encodedLatitude, encodedLongitude, oddFormat, numberOfBits);

            // The reference latitude and longitude is set to roughly 50km of the expected latitude and longitude
            double? referenceLatitude, referenceLongitude;
            GreatCircleMaths.Destination(expectedLatitude, expectedLongitude, 45, 50, out referenceLatitude, out referenceLongitude);
            var referenceCoordinate = new GlobalCoordinate(referenceLatitude.Value, referenceLongitude.Value);

            var dataRow = worksheet.Int("DataRow"); // helps set conditional breakpoints, VSTS doesn't always process rows in ascending order as they appear in the worksheet

            var decodedCoordinate = _Cpr.LocalDecode(cprCoordinate, referenceCoordinate);

            // We need to accept 180 and -180 as being the same longitude, taking into account rounding errors
            if(expectedLongitude == -180.0 && decodedCoordinate.Longitude > 179.9999999999) expectedLongitude = 180.0;
            else if(expectedLongitude == 180.0 && decodedCoordinate.Longitude < -179.9999999999) expectedLongitude = -180.0;

            Assert.AreEqual(expectedLatitude, decodedCoordinate.Latitude, 0.0008);    // The CPR tables cover all latitudes, sometimes the rounding introduced by selecting the midpoint of a zone can be quite large
            Assert.AreEqual(expectedLongitude, decodedCoordinate.Longitude, 0.000000000001);  // This can have a lower tolerance as the CPR101 tables aren't testing longitude zone boundaries so much
        }