У меня есть класс с несколькими методами, для которых я пишу модульные тесты. Для минимального воспроизводимого примера я прикрепляю 3 метода из этого класса:
Класс, методы которого я тестирую:
class WebViewLincSession(object):
def renew_session_id(self, request):
session = request.getSession()
new_session_key = self.get_token()
while new_session_key in session.guard.sessions: # just in case the key is already used
new_session_key = self.get_token()
session.guard.sessions.pop(session.uid) # remove the current session
session.uid = new_session_key # update the key
session.guard.sessions[new_session_key] = session # add session back with the new key
request.addCookie(session.guard.cookieKey, new_session_key, path='/', secure=True, httpOnly=True) # send updated cookie value
def set_nonce(self, request):
'''
create a nonce value and send it as cookie
'''
if self._nonce_key is None:
if self._NONCE_FOR_TEST:
self._nonce_key = 'ecnon_for_test'
else:
self._nonce_key = 'ecnon_' + self.get_token()
new_nonce_value = self.get_token()
while new_nonce_value in self._nonce: # just in case the value is already used
new_nonce_value = self.get_token()
now = time()
stay_alive = now + self._STAY_ALIVE
# reset timeout value for all existing nonces
for key in self._nonce.keys():
if self._nonce[key] > stay_alive:
self._nonce[key] = stay_alive
self._nonce[new_nonce_value] = now + self._NONCE_TIMEOUT
request.addCookie(self._nonce_key, new_nonce_value, path='/', secure=True, httpOnly=True) # send updated cookie value
return new_nonce_value
def get_valid_nonce(self):
now = time()
return [nonce for nonce in self._nonce.keys() if self._nonce[nonce] > now]
Мой тестовый класс выглядит следующим образом:
from __future__ import (division, absolute_import, with_statement)
from time import sleep
from mock import patch, MagicMock, mock, Mock
from requests.sessions import Session
from twisted.trial.unittest import TestCase
from viewlinc.webserver.web_viewlinc_session import WebViewLincSession
class MockGuard(object):
'''Mock guard object for testing'''
def __init__(self, *ags, **kwargs):
''' class constructor
'''
super(MockGuard, self).__init__(*ags, **kwargs)
self.cookieKey = 'test_cookie_key'
self.sessions = {'_test_session_': {}}
class MockSession(object):
'''Mock session object for testing'''
def __init__(self, *ags, **kwargs):
''' class constructor
'''
super(MockSession, self).__init__(*ags, **kwargs)
self.guard = MockGuard()
self.uid = '_test_session_'
class MockRequest(object):
'''Mock Request object for testing'''
def __init__(self, *ags, **kwargs):
''' class constructor
'''
super(MockRequest, self).__init__(*ags, **kwargs)
self.session = MockSession()
self.cookies = {}
def getSession(self):
''' returns session object
'''
return self.session
def addCookie(self, key, value, path='/', secure=True, httpOnly=True, expires=None):
''' add/replace cookie
'''
self.cookies[key] = {
'value': value,
'path': path,
'secure': secure,
'httpOnly': httpOnly,
'expires': expires
}
def getCookie(self, key):
''' retrieve a cookie
'''
cookie = self.cookies.get(key, {'value': None})
return cookie['value']
class WebViewLincSessionTests(TestCase):
'''Test WebViewLincSession methods'''
def __init__(self, *ags, **kwargs):
''' class constructor
'''
super(WebViewLincSessionTests, self).__init__(*ags, **kwargs)
self.request = MockRequest()
self.web_session = WebViewLincSession()
def test_02_renew_session_id(self):
'''Test renew_session_id
'''
self.web_session.renew_session_id(self.request)
session = self.request.session
return self.assertTrue(session.uid != '_test_session_' and session.uid in session.guard.sessions, 'renew_session_id failed')
def test_03_set_nonce(self):
'''Test set_nonce
'''
self.web_session.set_nonce(self.request)
return self.assertTrue(len(self.request.cookies) > 0, 'set_nonce failed.')
def test_04_get_valid_nonce(self):
'''Test get_valid_nonce
'''
# use a clean session
web_session = WebViewLincSession()
web_session.set_nonce(self.request)
web_session.set_nonce(self.request)
valid_nonce = web_session.get_valid_nonce()
self.assertTrue(len(valid_nonce) == 2, 'Expecting 2 valid nonces.')
sleep(16)
valid_nonce = web_session.get_valid_nonce()
return self.assertTrue(len(valid_nonce) == 1, 'Expecting 1 valid nonce.')
Что я хочу:
Я хотел бы использовать mock/patch в своем тестовом классе, где это возможно. Это, вероятно, означает, что MockGuard, MockSession и MockRequest будут заменены экземплярами mock. Я хотел бы посмотреть, как это можно улучшить, чтобы использовать mock/patch из пакета unittest в python.
