A simple plugin for Pytest containing a fixture that can start and stop the Flask server to run related tests. You just have to define the routes.

Install it by the command:

pip install flask_fixture

Define some routes in your conftest.py file:

from flask_fixture import endpoint

@endpoint('/')
def root():
    return 'some text'

And use a URL of a server in your tests as a fixture local_server_url:

import requests

def test_server(local_server_url):
    assert requests.get(local_server_url).text == 'some text'

The example uses the Requests library.