/// <summary>
/// Map an API response to PointLatLng
/// </summary>
/// <param name="apiResponse">The API response</param>
/// <returns></returns>
public PointLatLng Map(IssApiResponse apiResponse)
{
if (apiResponse is null)
{
throw new ArgumentException($"{nameof(apiResponse)} cannot be null");
}
if (apiResponse.iss_position is null ||
string.IsNullOrEmpty(apiResponse.iss_position.latitude) ||
string.IsNullOrEmpty(apiResponse.iss_position.longitude))
{
throw new ArgumentException($"{nameof(apiResponse)} is not well formed");
}
double latitude;
double longitude;
latitude = Convert.ToDouble(apiResponse.iss_position.latitude, CultureInfo.InvariantCulture);
longitude = Convert.ToDouble(apiResponse.iss_position.longitude, CultureInfo.InvariantCulture);
if (latitude > 90 || latitude < -90 || longitude > 180 || longitude < -180)
{
throw new ArgumentException($"Coordinates lat:{latitude} lng:{longitude} are out of bounds");
}
return(new PointLatLng(latitude, longitude));
}
/// <summary>
/// Retrieve the ISS current position from public web API. see http://api.open-notify.org/
/// </summary>
/// <returns>Current position of the ISS</returns>
public async Task <IssApiResponse> GetISSCurrentPosition()
{
try
{
var response = await client.GetAsync(apiURL);
if (!response.IsSuccessStatusCode)
{
throw new Exception($"ISS API respond with a status error code of {response.StatusCode}");
}
string stream = await response.Content.ReadAsStringAsync();
if (string.IsNullOrEmpty(stream))
{
throw new Exception("Content response is Empty");
}
IssApiResponse apiResult = JsonSerializer.Deserialize <IssApiResponse>(stream);
return(apiResult);
}
catch (Exception ex)
{
throw new Exception("Error calling ISS API", ex);
}
}
public void TestNullIssApiResponse()
{
//Arrange
IssApiResponse apiResult = null;
APIMapperService apiMapperservice = new APIMapperService();
//Act
Func <PointLatLng> action = () => apiMapperservice.Map(apiResult);
//Assert
action.Should().Throw <ArgumentException>().WithMessage("*cannot be null");
}
public void CoordinatesShouldBeValid()
{
//Arrange
IAPIMapperService mapperService = new APIMapperService();
IssApiResponse response = new IssApiResponse();
response.iss_position = new IssPosition();
response.iss_position.latitude = "95.0";
response.iss_position.longitude = "160.0";
//Act
Action mapped = () => mapperService.Map(response);
//Assert
mapped.Should().Throw <ArgumentException>();
}
public void TestOutOfBoundsCoordinates(string latitude, string longitude)
{
//Arrange
IssApiResponse apiResult = new IssApiResponse()
{
iss_position = new IssPosition()
{
latitude = latitude, longitude = longitude
}
};
APIMapperService apiMapperservice = new APIMapperService();
//Act
Func <PointLatLng> action1 = () => apiMapperservice.Map(apiResult);
//Assert
action1.Should().Throw <ArgumentException>().WithMessage("Coordinates*are out of bounds");
}
public void TestCoordinatesNotConvertible(string latitude, string longitude)
{
//Arrange
IssApiResponse apiResult = new IssApiResponse()
{
iss_position = new IssPosition()
{
latitude = latitude, longitude = longitude
}
};
APIMapperService apiMapperservice = new APIMapperService();
//Act
Func <PointLatLng> action1 = () => apiMapperservice.Map(apiResult);
//Assert
action1.Should().Throw <FormatException>();
}
public void TestValidCoordinates(string latitude, string longitude, double expectedLatitude, double expectedLongitude)
{
//Arrange
IssApiResponse apiResult = new IssApiResponse()
{
iss_position = new IssPosition()
{
latitude = latitude, longitude = longitude
}
};
APIMapperService apiMapperservice = new APIMapperService();
//Act
PointLatLng result = apiMapperservice.Map(apiResult);
//Assert
result.Lat.Should().Be(expectedLatitude);
result.Lng.Should().Be(expectedLongitude);
}
public void TestConversionIsFine()
{
//Arrange
IAPIMapperService mapperService = new APIMapperService();
IssApiResponse response = new IssApiResponse();
response.iss_position = new IssPosition();
response.iss_position.latitude = "80.0";
response.iss_position.longitude = "160.0";
//Act
PointLatLng mapped = mapperService.Map(response);
//Assert
mapped.Should().NotBeNull();
mapped.Lat.Should().Be(80);
mapped.Lng.Should().Be(160);
}
public void TestNotWellFormedIssApiResponse(bool nullIssPosition, string latitude, string longitude)
{
//Arrange
IssApiResponse apiResult = new IssApiResponse();
if (!nullIssPosition)
{
apiResult.iss_position = new IssPosition()
{
latitude = latitude, longitude = longitude
};
}
APIMapperService apiMapperservice = new APIMapperService();
//Act
Func <PointLatLng> action1 = () => apiMapperservice.Map(apiResult);
//Assert
action1.Should().Throw <ArgumentException>().WithMessage("*is not well formed");
}