Interesting feature. One key thing I found when testing is that for you to reproduce the set of steps the user went through, there are a data attribute(s) that need to remain the same. For example, after login, a request for your account information will contain an account_id number that should be the same for all other account requests. If you can't guarantee this, then I don't see how you could use this in any sort of integration tests.

Isn't it simpler to use the Open API spec then generate from there?