'Verify that we can \'add\' users to their current cohort.'

def test_only_present(self):

    usernames = [user.username for user in self.cohort1_users]
    response_dict = self.request_add_users_to_cohort(','.join(usernames), self.cohort1, self.course)
    self.verify_added_users_to_cohort(response_dict, self.cohort1, self.course, expected_added=[], expected_changed=[], expected_present=[(user, user.username) for user in self.cohort1_users], expected_preassigned=[], expected_unknown=[], expected_invalid=[])
