python - unit testing with mock for google apps api - Admin Directory API -

i followed tutorial here , can retrive emails domain application.

now want write unit tests mock application, dont know start.

i have read here unit testing mock , google api admin directory api comes own mock library. dont understand how use correctly.

my application test_email_user.py contains import real application email_user.py what?

i have fake google api directory responses real application, how?

greetings, sam

i'm not familiar google client api own mock library mention mock library:

import mock  class directoryhelper(): ... #real method calls api def get_users(self):     user_list = []     request = self.service.users().list(         customer=self.customer_id,         maxresults=500,         orderby='email',         fields="nextpagetoken,users(id,orgunitpath,primaryemail,name(givenname,familyname),agreedtoterms,suspended)"     )     while request:         logging.debug('retrieving page of users directory...')         report_document = request.execute()         if 'users' in report_document:             user in report_document['users']:                 user_list.append(user)         request = self.service.users().list_next(             request, report_document         )     return user_list  #mock method simulate api call def get_mock_users(self):     return [    {    "id": "12345",    "primaryemail": "mock@domain.com",    "name": {     "givenname": u"mock",     "familyname": u"user"    },    "agreedtoterms": true,    "suspended": false,    "orgunitpath": "/"   } ]  @mock.patch.object(directoryhelper, 'get_users', get_mock_users) def test_sync_apps_users(self):     directory_helper = directoryhelper()     self.assertequals(1, len(directory_helper.get_users()), 'mock contain 1 user')