#36083: LiveServerTestCase fails in parallel test runner if
django.contrib.auth.backends has not yet been imported
-------------------------------------+-------------------------------------
Reporter: Adam Zapletal | Owner: Jacob
| Walls
Type: Bug | Status: assigned
Component: Testing framework | Version: dev
Severity: Release blocker | Resolution:
Keywords: TransactionTestCase | Triage Stage: Accepted
setupclass available_apps |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by Jacob Walls):
Unfortunately there is a new test failure with option 2, so it's probably
less safe than doing nothing:
{{{
======================================================================
ERROR: test_media_files (servers.tests.LiveServerViews.test_media_files)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/user/django/tests/servers/tests.py", line 310, in
test_media_files
with self.urlopen("/media/example_media_file.txt") as f:
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/user/django/tests/servers/tests.py", line 44, in urlopen
return urlopen(self.live_server_url + url)
File
"/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/urllib/request.py",
line 189, in urlopen
return opener.open(url, data, timeout)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
File
"/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/urllib/request.py",
line 495, in open
response = meth(req, response)
File
"/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/urllib/request.py",
line 604, in http_response
response = self.parent.error(
'http', request, response, code, msg, hdrs)
File
"/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/urllib/request.py",
line 533, in error
return self._call_chain(*args)
~~~~~~~~~~~~~~~~^^^^^^^
File
"/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/urllib/request.py",
line 466, in _call_chain
result = func(*args)
File
"/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/urllib/request.py",
line 613, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 404: Not Found
----------------------------------------------------------------------
Ran 30 tests in 5.779s
}}}
----
For reference here is the test I was intending to add:
{{{
class LiveServerAvailableAppsTests(LiveServerTestCase):
available_apps = []
@classmethod
def setUpClass(cls):
# Simulate the system checks having not run their side effect of
# importing these modules via check_middleware().
auth_backends = sys.modules.pop("django.contrib.auth.backends",
None)
cls.addClassCleanup(sys.modules.__setitem__,
"django.contrib.auth.backends", auth_backends)
auth_middleware =
sys.modules.pop("django.contrib.auth.middleware", None)
cls.addClassCleanup(sys.modules.__setitem__,
"django.contrib.auth.middleware", auth_middleware)
super().setUpClass()
def test_server_starts_when_system_checks_have_not_run(self):
# Mostly to exercise setUpClass() but also to verify test setup.
self.assertEqual(self.available_apps, [])
}}}
----
Option 3 (Adam's original patch) may be the most practical thing at this
point (and doesn't need to be a blocker, since it's just changing our
existing test.)
Thoughts?
--
Ticket URL: <https://code.djangoproject.com/ticket/36083#comment:15>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion visit
https://groups.google.com/d/msgid/django-updates/010701946a703c0f-2c652810-8bc5-4c9a-a511-cdb6ba96c579-000000%40eu-central-1.amazonses.com.
