Isolated auth_tests from contenttypes_tests; refs #11505.

    UserChangeForm, UserCreationForm,

)

from django.contrib.auth.models import User

from django.contrib.sites.models import Site

from django.core import mail

from django.core.mail import EmailMultiAlternatives

from django.forms.fields import CharField, Field

    fixtures = ['authtestdata.json']

    @classmethod

    def setUpClass(cls):

        super(PasswordResetFormTest, cls).setUpClass()

        # This cleanup is necessary because contrib.sites cache

        # makes tests interfere with each other, see #11505

        Site.objects.clear_cache()

    def create_dummy_user(self):

        """

        Create a user and return a tuple (user_object, username, email).