Django 测试中禁用了 Airbrake 通知?

Airbrake notifications disabled in Django tests?

我配置了一个名为 lucy_web 的 Django 应用,使用 pybrake 将错误记录到 Airbrake。在 lucy_web 层次结构 lucy_web.lib.session_recommendations 的模块中,我定义了一个测试函数:

import logging

logger = logging.getLogger(__name__)

def log_something():
    logger.error("Logging something...")

如果我从 Django shell 调用这个函数,就像这样:

(venv) Kurts-MacBook-Pro-2:lucy-web kurtpeek$ python manage.py shell
Python 3.6.4 (v3.6.4:d48ecebad5, Dec 18 2017, 21:07:28) 
Type 'copyright', 'credits' or 'license' for more information
IPython 6.3.1 -- An enhanced Interactive Python. Type '?' for help.

In [1]: from lucy_web.lib.session_recommendation import *

In [2]: log_something()

我看到一封错误邮件:

但是,如果我定义了一个测试,并尝试从那里调用它,我没有看到任何新的错误实例出现:

from django.test import TestCase
from django.core import mail


class SessionRecommendationTestCase(TestCase):
    def test_airbrake_notification_if_session_type_does_not_exist(self):
        from lucy_web.lib.session_recommendation import log_something
        log_something()
        import ipdb; ipdb.set_trace()

运行 这并没有导致任何新的错误实例出现在 Airbrake 仪表板中。此外,mail.outbox 为空:

(venv) Kurts-MacBook-Pro-2:lucy-web kurtpeek$ python manage.py test lucy_web.tests.test_session_recommendation.SessionRecommendationTestCase.test_airbrake_notification_if_session_type_does_not_exist
Creating test database for alias 'default'...
System check identified no issues (0 silenced).
--Return--
None
> /Users/kurtpeek/Documents/Dev/lucy2/lucy-web/lucy_web/tests/test_session_recommendation.py(377)test_airbrake_notification_if_session_type_does_not_exist()
    375         from lucy_web.lib.session_recommendation import log_something
    376         log_something()
--> 377         import ipdb; ipdb.set_trace()

ipdb> mail.outbox
[]

据我所知 https://docs.djangoproject.com/en/2.0/topics/testing/tools/#email-services,在一次测试中,Django 将 Django 发送的所有电子邮件重定向到虚拟发件箱 mail.outbox。不过,我不希望 Airbrake 出现这种情况,因为电子邮件可能是由他们的后端发送的——如果是这样的话,我不希望 mail.outbox 为空。

为什么我没有收到任何 Airbrake 测试通知?它是否更通用,比如在测试期间所有日志记录都是 disabled/captured?

我通过在 pybrake.Notifiersend_notice 方法中设置跟踪来验证它不会在单元测试中被调用,而当我调用函数 'manually' 来自 Django shell.

为了仍然获得测试覆盖率,我解决了这个问题,只是断言 logger.error 被调用:

from django.test import TestCase
from unittest.mock import patch

class SessionRecommendationTestCase(TestCase):
    @patch('lucy_web.lib.session_recommendation.logger.error')
    def test_create_session_from_non_existent_session_type_title_triggers_error_logging(self, mock_error):
        title = "Being Awesome"    # Title of a non-existent session type
        _create_sessions([title])
        mock_error.assert_called_with(
            f"Tried to create a session of type '{title}', but no such session type was found in the database.")

这是我要测试的实际功能:

def _create_sessions(title_list, starting_number=1, **kwargs):
    '''Auxiliary function to create sessions from a list of SessionType titles'''
    session_number = starting_number
    for title in title_list:
        session_type = SessionType.objects.filter(title=title).first()
        if session_type:
            Session.objects.create(
                session_type=session_type,
                session_number=session_number,
                **kwargs)
            session_number += 1
        else:
            logger.error(
                f"Tried to create a session of type "
                f"'{title}', but no such session type was found in the database.")

此测试通过:

(venv) Kurts-MacBook-Pro-2:lucy-web kurtpeek$ python manage.py test lucy_web.tests.test_session_recommendation.SessionRecommendationTestCase.test_create_session_from_non_existent_session_type_title_triggers_error_logging
Creating test database for alias 'default'...
System check identified no issues (0 silenced).
.
----------------------------------------------------------------------
Ran 1 test in 0.004s

OK
Destroying test database for alias 'default'...