Testing payload passed within the request - testing

[mdczaplicki]

I'm creating TestClient that accepts a dummy Application that only implements methods, URLs, status codes & response.

And then in a test I'm using that TestClient instance to make requests (through an actual application). How can I verify if I'm passing correct payload to POST request? I've went through TestClient, Application &TestServer, but didn't find anything useful.

Should I just mocker.spy the ClientSession?

[Dreamsorcerer]

Have you got some sample code? I'm not overly clear on what you mean.