def test_permissions(self, user, access):
image = ImageFactory()
if isinstance(user, str):
group_name = (
settings.RETINA_ADMINS_GROUP_NAME
if "admin" in user
else settings.RETINA_GRADERS_GROUP_NAME
)
if "no_access" not in user:
image.permit_viewing_by_retina_users()
user = UserFactory()
grader_group, group_created = Group.objects.get_or_create(
name=group_name
)
grader_group.user_set.add(user)
elif user == AnonymousUser:
user = AnonymousUser()
else:
user = user(is_staff=True)
request = Request(user=user)
permission = ImagePermission()
assert permission.has_object_permission(request, {}, image) == access
