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
18417	override_settings doesn't work with unittest.TestCase subclasses	Claude Paroz	nobody	"Currently, if you decorate with override_settings a subclass of unittest.!TestCase, all tests in the class are silently skipped. This is happening because of the issubclass(!TransactionTestCase) test here: https://github.com/django/django/blob/master/django/test/utils.py#L188

We cannot simply change the issubclass test, because ut.!TestCase doesn't have any _pre_setup mechanism.

I can see two ways forward:
  * Document that override_settings cannot decorate unittest.!TestClass subclasses, and raise an error when the decorator is applied to anything other than !TransactionTestCase subclasses.
  * Instead of using _pre_setup, use setUpClass to enable the overriden settings.

I'd really like to see the second alternative implemented. However, this means that the override_settings machinery will only run at the start of the !TestClass tests, and no more between each test (unless the specific test itself is decorated by override_settings). This shouldn't disturb the test system more than that."	Bug	closed	Testing framework	1.4	Normal	fixed		asendecka@…	Design decision needed	1	0	0	0	0	0