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
21831	Cannot run tests without contrib.auth in INSTALLED_APPS	Carl Meyer	nobody	"This is a result of the interaction of d818e0c9b2b88276cc499974f9eee893170bf0a8 (the new checks framework) and #20915 (the dependency that `django.test` has on `django.contrib.auth`).

`django.test` imports a number of login/logout-related methods from contrib.auth, in order to support auth-related features of the test client.

The `check_user_model` check for contrib.auth is registered in `django/contrib/auth/__init__.py` as a side effect of importing anything from within `django.contrib.auth`.

Actually executing the `check_user_model` check when contrib.auth is not installed results in ""LookupError: No installed app with label 'auth'."" on the `cls = apps.get_model(app_name, model_name)` line."	Bug	new	Core (Other)	dev	Release blocker				Accepted	0	0	0	0	0	0