Running tests

To run all tests in all Python environments configured in tox.ini, just setup tox and run it inside the toplevel project directory:


To run a single test inside a specific Python environment, do e.g.:

tox -e py39 tests/

Testing cornice services

Testing is nice and useful. Some folks even said it helped saving kittens. And childs. Here is how you can test your Cornice’s applications.

Let’s suppose you have this service definition:

from pyramid.config import Configurator

from cornice import Service

service = Service(name="service", path="/service")

def has_payed(request, **kwargs):
    if not 'paid' in request.GET:
        request.errors.add('body', 'paid', 'You must pay!')

def get1(request):
    return {"test": "succeeded"}

def includeme(config):

def main(global_config, **settings):
    config = Configurator(settings={})
    return config.make_wsgi_app()

We have done three things here:

  • setup a service, using the Service class and define our services with it
  • register the app and cornice to pyramid in the includeme function
  • define a main function to be used in tests

To test this service, we will use webtest, and the TestApp class:

from webtest import TestApp
import unittest

from yourapp import main

class TestYourApp(unittest.TestCase):

    def test_case(self):
        app = TestApp(main({}))
        app.get('/service', status=400)