Hello folks, I have a function that expects a user's input to which I'd like to write a unit test using pytest:

def agreeToLogin():
    '''Asks if the user wants to login to or not.

    @return: true if yes to login, false if no
    '''
    while True:
        answer = input("Do you wish to login first? (y/n): ")
        if answer == "":
            print("Please input either y for yes, or n for no.")
            continue
        if answer == "n":
            return False
            print("Login will be skipped.")
            break
        if answer == "y":
            return True
            print("Login will not be skipped.")
            break
        else:
            continue

The function does not take any arguments and thus I can't just simply use an assert in the test. Also, the test returns this when called: https://pastebin.com/BSqQeHj0

I tried some relevant, I hope, solutions described here: https://stackoverflow.com/questions/35851323/pytest-how-to-test-a-function-with-input-call and I also played a bit with: https://docs.pytest.org/en/latest/monkeypatch.html both to no success.

How would I write a unit test for a function like this? Do I need to re-write the function itself so it's easier to test?