Unit Tests and Integration Tests

A unit test is sort of a modularized and self-contained piece of functionality, whereas an integration test checks how that modularized piece of functionality interacts with the entire system. Unit tests usually live with your code. In fact, they always should. Standard repository constructs for pretty much regardless of which language you're using. There's going to be a concept of your source code or main code or there's tons of different names for it. You can name it whatever you want in Python and there'll be a test folder that exists at the repository root or it could exist elsewhere in the repository.