def METHOD_NAME(self):
    """test view"""
    # login testuser
    self.client.login(
        username='testuser_system_exporter_spreadsheet_csv_config',
        password='ocTJgNdjZMafypl2FR43',
    )
    # create post data
    data_dict = {
        'spread_csv_system_id': 'on',
    }
    # get response
    response = self.client.post(
        '/config/system/exporter/spreadsheet/csv/', data_dict
    )
    # get messages
    messages = list(get_messages(response.wsgi_request))
    # compare
    self.assertEqual(
        str(messages[-1]), 'System exporter spreadsheet CSV config changed'
    )