Unit testing functions implementing these SQL extensions

Using your examples I produced a very simply HTTP trigger function that reads all of the values from a target table. The function works perfectly when I execute + run the debug.

However, I cannot seem to get my unit testing to work with the SQL extensions. Everything _seems_ to be OK, but the IEnumerable for my return objects never gets populated.

I've tried both xunit and the standard microsoft unit testing. Both refuse to populate the List<> I pass in, although the function is returning OkObjectResult.

What am I missing here? Should I pass in something other than a List<> to be populated?