Mock Testing mit PythonPyBonn Meetup – März 2013

Timo Stollenwerk

Testing Pyramide

Ein Test ist kein Unit Test wenn

● Datenbankverbindung● Netzwerkverbindung● Dateisystemzugriff● Externer Service

Mocks in Python

● Mock● Mocker● pMock● pyMock● mox● ...

PostMonkey

>>> from postmonkey import PostMonkey

>>> pm = PostMonkey('your_api_key')

>>> pm.ping()

u"Everything's Chimpy!"

Mocker

>>> mocker = Mocker()

>>> postmonkey = mocker.replace("postmonkey")

>>> pm = postmonkey.PostMonkey(ANY)

>>> pm.ping()

>>> mocker.result(u"Everything's Chimpy!")

>>> mocker.replay()

Mocker: PostMonkey

>>> from postmonkey import PostMonkey

>>> pm = PostMonkey('your_api_key')

>>> pm.ping()

u"Everything's Chimpy!"

>>> pm

<mocker.Mock object at 0x9d7624c>

Mock

>>> @patch('postmonkey.PostMonkey')

>>> def test_mailchimp_ping_method(mock_class):

>>> mock_class().ping = MagicMock(

>>> return_value=u"Everything's Chimpy!")

>>> from postmonkey import PostMonkey

>>> pm = PostMonkey('123')

>>> assert pm.ping() == u"Everything's Chimpy!"

>>> test_mailchimp_ping_method()

Mock Testing mit PythonPyBonn Meetup – März 2013

Timo Stollenwerk

github.com/tisto/mock-testing-in-python