FlurlHttpException helper creator

I found it hard to create an instance FlurHttpException for my unit tests. Took me a while to create a helper function for it. It would be nice to have some built-in way in the library to create this. Or maybe there is a better way of doing this that I missed.

 public static class UnitTestHelper
    {
        public static FlurlHttpException CreateFlurlHttpException(string httpContent = null, HttpStatusCode statusCode = HttpStatusCode.BadRequest)
        {
            var response = new HttpResponseMessage
            {
                StatusCode = statusCode,
                Content = new StringContent(httpContent ?? string.Empty)
            };
            return new FlurlHttpException
            (new Fixture().Build<FlurlCall>()
                .OmitAutoProperties()
                .With(a => a.Request, new FlurlRequest {Url = "http://dummy"})
                .With(a => a.HttpRequestMessage, new HttpRequestMessage())
                .With(a => a.HttpResponseMessage, response)
                .With(a => a.Response, new FlurlResponse(response))
                .Create());
        }
    }

I created a demo project for sample usage. I’m using AutoFixture by the way for creating this helper.

https://github.com/francischie/FlurlHttpClientExceptionDemo/blob/main/FlurlHttpClientExceptionDemo.Tests/Services/SampleServiceTests.cs

[tmenier]

I did sort of a minimal fix for this - allowing you to do this without any issues:

new FlurlHttpException(null);

A FlurlHttpException would never be created without a non-null FlurlCall within the library, so I didn’t really want to “encourage” this by providing an empty constructor, but hopefully this is a good compromise.

[phatt-millips]

I ran into this issue also. I was trying to do new FlurlHttpException(new FlurlCall()); in a Moq setup and got the same exception