Updated User manager when testing custom AUTH_USER_MODEL

from django.contrib.auth.tests.views import *

# The password for the fixture data users is 'password'

from django.dispatch import receiver

from django.test.signals import setting_changed

@receiver(setting_changed)

def user_model_swapped(**kwargs):

    if kwargs['setting'] == 'AUTH_USER_MODEL':

        from django.db.models.manager import ensure_default_manager

        from django.contrib.auth.models import User

        # Reset User manager

        setattr(User, 'objects', User._default_manager)

        ensure_default_manager(User)

    def test_swappable_user(self):

        "The current user model can be swapped out for another"

        self.assertEqual(get_user_model(), CustomUser)

        with self.assertRaises(AttributeError):

            User.objects.all()

    @override_settings(AUTH_USER_MODEL='badsetting')

    def test_swappable_user_bad_setting(self):