public async Task Invoke_ShouldCatchException()
{
//ARRANGE
var useCaseException = new UseCaseException(UseCaseExceptionCode.FailedToAuthenticatedToInstagram);
var defaultHttpContext = new DefaultHttpContext();
const HttpStatusCode httpStatusCode = HttpStatusCode.Unauthorized;
requestDelegateMock.Setup(rd => rd(defaultHttpContext)).Throws(useCaseException);
useCaseExceptionCodeMapperMock.Setup(ucecm => ucecm.MapToStatusCode(useCaseException.StatusCode))
.Returns(httpStatusCode);
//ACT
await _exceptionMiddleware.Invoke(defaultHttpContext);
defaultHttpContext.Response.Body.Seek(0, SeekOrigin.Begin);
using (var reader = new StreamReader(defaultHttpContext.Response.Body, Encoding.UTF8))
{
var responseBody = await reader.ReadToEndAsync();
//ASSERT
Assert.AreEqual(defaultHttpContext.Response.ContentType, useCaseException.ContentType);
Assert.AreEqual(responseBody, useCaseException.Message);
Assert.AreEqual(defaultHttpContext.Response.StatusCode, (int)httpStatusCode);
}
}
private static Task HandleUseCaseExceptionAsync(HttpContext context, UseCaseException useCaseException)
{
context.Response.ContentType = "application/json";
context.Response.StatusCode = (int)HttpStatusCode.BadRequest;
var json = new
{
context.Response.StatusCode,
Message = useCaseException.Message
};
return(context.Response.WriteAsync(System.Text.Json.JsonSerializer.Serialize(json)));
}
protected static void HandleDbUpdateException(DbUpdateException e)
{
var uce = new UseCaseException()
{
UserErrorMessage = "An API database error was detected",
DevErrorMessage = e.Message
};
if (e.InnerException is Npgsql.PostgresException npgSqlEx)
{
uce.DevErrorMessage += Environment.NewLine + npgSqlEx.ConstraintName;
uce.DevErrorMessage += Environment.NewLine + npgSqlEx.Detail;
uce.DevErrorMessage += Environment.NewLine + npgSqlEx.MessageText;
}
throw uce;
}
