regressiontests.test_runner.tests.DeprecationDisplayTest.test_runner_deprecation_verbosity_zero() fails with enabled warnings

[Arfrever]

When warnings are enabled (using PYTHONWARNINGS="d" environmental variable), then regressiontests.test_runner.tests.DeprecationDisplayTest.test_runner_deprecation_verbosity_zero() fails.
I use Django 1.5.3.

$ PYTHONPATH="." python3.3 tests/runtests.py --settings=test_sqlite -v0 test_runner.DeprecationDisplayTest.test_runner_deprecation_verbosity_zero
----------------------------------------------------------------------
Ran 1 test in 1.086s

OK
$ PYTHONPATH="." PYTHONWARNINGS="d" python3.3 tests/runtests.py --settings=test_sqlite -v0 test_runner.DeprecationDisplayTest.test_runner_deprecation_verbosity_zero
======================================================================
FAIL: test_runner_deprecation_verbosity_zero (regressiontests.test_runner.tests.DeprecationDisplayTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/Django-1.5.3/tests/regressiontests/test_runner/tests.py", line 368, in test_runner_deprecation_verbosity_zero
    self.assertFalse("DeprecationWarning: warning from test" in err)
AssertionError: True is not False

----------------------------------------------------------------------
Ran 1 test in 1.060s

FAILED (failures=1)

[Baptiste Mispelon]

Hi,

Thanks for the detailed report. I can indeed reproduce the issue.

It looks like the breakage was introduced by commit 572a300e56bc0192a9c82565a1d39b96f18bebee and interestingly, it only seems to be present on the 1.5 branch.

[Claude Paroz <claude@…>]

In b787ef2dbff957c5b5a64be13f01f985d17ff05b:

Fixed #21092 -- Ensured admin_scripts tests are run with warnings off

[Tim Graham <timograham@…>]

In c4f772ed346fa68df503f545d28719c082f6b338:

Fixed test failures on Windows.

refs #21092 and 8d7e048a8b428bebe82be735a84570f9250441e6