The title more or less, at the moment I am learning rest sharp, but I have not found a decent open API for writing tests, something that isn't too easy nor too difficult.

Preferably with some POST and GET methods, so I can write tests for getting data I posted.

Also if anyone can link me a example of how to develop a API testing framework, how to order namespaces any such :)

Thanks in advance.

The difference between unit, service, end-to-end, and integration tests is blurry and discussable.

Having said that, I am starting to question my understanding of API testing.

I have quite a standard web application that is exposed via RESTful endpoints. The logic under the hood of the usecases for the typical GET/PUT/POST requests is, however, rather complex.

Previously, I used httptest to make sure all my middleware works correctly and found that very convenient.

Ideally, I would like to be sure that all the endpoints work correctly, correct objects get created with valid states, etc.

As far as I know from the standard definitions, integration testing has nothing to do with object state checking and similar functional stuff. On the other hand, running the server locally and thus using a real (although local) database sort of contradicts what unit testing is.

I am a bit confused, what is the preferred way to test your API endpoints? Mocking a database is also a theoretical option, but mocking everything (and my repositories unfortunately got too large to be neatly mocked) would be very tiresome.

How do you test your APIs?