Django unit test fails when using the dummy cache backend.

[Stavros Korokithakis]

When using the dummy cache backend, the test that tests the cache fails (understandably), but it's annoying to have a test fail when this is the indended behaviour. Shouldn't this check for the dummy backend and not run the test (or expect the test to fail) if so?

======================================================================
FAIL: Doctest: django.contrib.sessions.tests
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Library/Python/2.5/site-packages/django/test/_doctest.py", line 2180, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for django.contrib.sessions.tests
  File "/Library/Python/2.5/site-packages/django/contrib/sessions/tests.py", line 0, in tests

----------------------------------------------------------------------
File "/Library/Python/2.5/site-packages/django/contrib/sessions/tests.py", line 140, in django.contrib.sessions.tests
Failed example:
    cache_session.exists(cache_session.session_key)
Expected:
    True
Got:
    False

[Andrew Badr]

Ran into this too. A solution might involve ​http://code.djangoproject.com/ticket/4788.

[b14ck]

Hey guys, I took a crack at fixing this, you can see the patch / pull request here: ​https://github.com/django/django/pull/5

Obviously, my patch is suboptimal, maybe someone could take a look at it and make it more elegant?

I'd love to see this bug get squashed though, it is really annoying when running in development mode.

[Claude Paroz]

Set explicit cache for CacheSessionTests

[Claude Paroz]

Attached patch try to explicitely set the cache to LocMem instead of skipping the test when the dummy backend is setup.

[anonymous]

Same problem for me. It's very annoying.

[Ivan Virabyan]

Can someone apply the patch to trunk?

[Claude Paroz <claude@…>]

In 486e67598f8d8e83890ef3c90399d660d8e9eee6:

Fixed #10853 -- Skipped some sessions tests with dummy cache backend