id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
20636	AttributeError: 'Settings' object has no attribute '_original_allowed_hosts'	Aymeric Augustin	nobody	"When running the tests for http://github.com/aaugustin/django-sesame against stable/1.5.x, I'm hitting this exception after they complete:
{{{
Traceback (most recent call last):
  File ""/Users/myk/Documents/dev/django/django/core/management/base.py"", line 222, in run_from_argv
    self.execute(*args, **options.__dict__)
  File ""/Users/myk/Documents/dev/django/django/core/management/commands/test.py"", line 72, in execute
    super(Command, self).execute(*args, **options)
  File ""/Users/myk/Documents/dev/django/django/core/management/base.py"", line 255, in execute
    output = self.handle(*args, **options)
  File ""/Users/myk/Documents/dev/django/django/core/management/commands/test.py"", line 89, in handle
    failures = test_runner.run_tests(test_labels)
  File ""/Users/myk/Documents/dev/django/django/test/simple.py"", line 370, in run_tests
    self.teardown_test_environment()
  File ""/Users/myk/Documents/dev/django/django/test/simple.py"", line 341, in teardown_test_environment
    teardown_test_environment()
  File ""/Users/myk/Documents/dev/django/django/test/utils.py"", line 104, in teardown_test_environment
    settings.ALLOWED_HOSTS = settings._original_allowed_hosts
  File ""/Users/myk/Documents/dev/django/django/conf/__init__.py"", line 54, in __getattr__
    return getattr(self._wrapped, name)
AttributeError: 'Settings' object has no attribute '_original_allowed_hosts'
}}}

I'm positive the tests used to work, and this application is only a few dozen lines of code and doesn't do anything really weird with settings.

It uses `@override_settings`, but I've tried to reproduce a similar pattern in Django's test suite and I didn't hit the bug:
{{{
from django.test.utils import override_settings

@override_settings(MIDDLEWARE_CLASSES=('a',))
class Decorated(TestCase):
    def test_basic_math(self):
        self.assertEqual(2 + 2, 4)

@override_settings(MIDDLEWARE_CLASSES=('b',))
class DoubleDecorated(TestCase):
    pass
}}}

I'm not sure why this happens, but since something that used to work now fails with a cryptic error, we should probably do something about it."	Bug	closed	Testing framework	dev	Release blocker	fixed		Simon Charette	Unreviewed	0	0	0	0	0	0