Too Long; Didn't Read
Python Social Auth is a great library to integrate 3rd party logins into your web application. Here is a quick way to test without having to mock HTTP calls or hit live external endpoints. The test is based off of Github so you may need to override more methods for other backends. The first one overrides state validation so we can use made up tokens. The second overrides fetching data about the user so we don't need to make external calls. Test redirect to third party site. Simulate successful return and verify account is created and/or logged in.