diff --git a/tests/admin_views/tests.py b/tests/admin_views/tests.py
index 910d7ff32d..7079b3ef89 100644
--- a/tests/admin_views/tests.py
+++ b/tests/admin_views/tests.py
@@ -73,43 +73,12 @@ class AdminViewBasicTestCase(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        # password = "secret"
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u2 = User.objects.create(
-            id=101, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='adduser',
-            first_name='Add', last_name='User', email='auser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u3 = User.objects.create(
-            id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
-            first_name='Change', last_name='User', email='cuser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u4 = User.objects.create(
-            id=103, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='deleteuser',
-            first_name='Delete', last_name='User', email='duser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u5 = User.objects.create(
-            id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
-            first_name='Joe', last_name='Public', email='joepublic@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u6 = User.objects.create(
-            id=106, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='nostaff',
-            first_name='No', last_name='Staff', email='nostaff@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
         cls.s1 = Section.objects.create(name='Test section')
         cls.a1 = Article.objects.create(
             content='<p>Middle content</p>', date=datetime.datetime(2008, 3, 18, 11, 54, 58), section=cls.s1
@@ -181,7 +150,7 @@ class AdminViewBasicTestCase(TestCase):
         }
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def tearDown(self):
         formats.reset_format_cache()
@@ -1016,43 +985,12 @@ class AdminViewFormUrlTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        # password = "secret"
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u2 = User.objects.create(
-            id=101, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='adduser',
-            first_name='Add', last_name='User', email='auser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u3 = User.objects.create(
-            id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
-            first_name='Change', last_name='User', email='cuser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u4 = User.objects.create(
-            id=103, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='deleteuser',
-            first_name='Delete', last_name='User', email='duser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u5 = User.objects.create(
-            id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
-            first_name='Joe', last_name='Public', email='joepublic@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u6 = User.objects.create(
-            id=106, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='nostaff',
-            first_name='No', last_name='Staff', email='nostaff@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
         cls.s1 = Section.objects.create(name='Test section')
         cls.a1 = Article.objects.create(
             content='<p>Middle content</p>', date=datetime.datetime(2008, 3, 18, 11, 54, 58), section=cls.s1
@@ -1066,7 +1004,7 @@ class AdminViewFormUrlTest(TestCase):
         cls.p1 = PrePopulatedPost.objects.create(title='A Long Title', published=True, slug='a-long-title')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_change_form_URL_has_correct_value(self):
         """
@@ -1101,7 +1039,7 @@ class AdminJavaScriptTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -1109,7 +1047,7 @@ class AdminJavaScriptTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_js_minified_only_if_debug_is_false(self):
         """
@@ -1149,7 +1087,7 @@ class SaveAsTests(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -1158,7 +1096,7 @@ class SaveAsTests(TestCase):
         cls.per1 = Person.objects.create(name='John Mauchly', gender=1, alive=True)
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_save_as_duplication(self):
         """Ensure save as actually creates a new person"""
@@ -1287,12 +1225,12 @@ class CustomModelAdminTest(AdminViewBasicTestCase):
         self.assertContains(response, 'Hello from a custom password change done template')
 
     def test_custom_admin_site_view(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
         response = self.client.get(reverse('admin2:my_view'))
         self.assertEqual(response.content, b"Django is a magical pony!")
 
     def test_pwd_change_custom_template(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
         su = User.objects.get(username='super')
         try:
             response = self.client.get(
@@ -1316,38 +1254,37 @@ class AdminViewPermissionsTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        super(AdminViewPermissionsTest, cls).setUpTestData()
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u2 = User.objects.create(
+        cls.adduser = User.objects.create(
             id=101, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='adduser',
             first_name='Add', last_name='User', email='auser@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u3 = User.objects.create(
+        cls.changeuser = User.objects.create(
             id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
             first_name='Change', last_name='User', email='cuser@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u4 = User.objects.create(
+        cls.deleteuser = User.objects.create(
             id=103, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='deleteuser',
             first_name='Delete', last_name='User', email='duser@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u5 = User.objects.create(
+        cls.joepublicuser = User.objects.create(
             id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
             first_name='Joe', last_name='Public', email='joepublic@example.com',
             is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u6 = User.objects.create(
+        cls.nostaffuser = User.objects.create(
             id=106, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='nostaff',
             first_name='No', last_name='Staff', email='nostaff@example.com',
@@ -1369,14 +1306,14 @@ class AdminViewPermissionsTest(TestCase):
         opts = Article._meta
 
         # User who can add Articles
-        cls.u2.user_permissions.add(get_perm(Article, get_permission_codename('add', opts)))
+        cls.adduser.user_permissions.add(get_perm(Article, get_permission_codename('add', opts)))
         # User who can change Articles
-        cls.u3.user_permissions.add(get_perm(Article, get_permission_codename('change', opts)))
-        cls.u6.user_permissions.add(get_perm(Article, get_permission_codename('change', opts)))
+        cls.changeuser.user_permissions.add(get_perm(Article, get_permission_codename('change', opts)))
+        cls.nostaffuser.user_permissions.add(get_perm(Article, get_permission_codename('change', opts)))
 
         # User who can delete Articles
-        cls.u4.user_permissions.add(get_perm(Article, get_permission_codename('delete', opts)))
-        cls.u4.user_permissions.add(get_perm(Section, get_permission_codename('delete', Section._meta)))
+        cls.deleteuser.user_permissions.add(get_perm(Article, get_permission_codename('delete', opts)))
+        cls.deleteuser.user_permissions.add(get_perm(Section, get_permission_codename('delete', Section._meta)))
 
         # login POST dicts
         cls.index_url = reverse('admin:index')
@@ -1590,20 +1527,17 @@ class AdminViewPermissionsTest(TestCase):
         self.client.login(**self.nostaff_login)
         response = self.client.get(self.index_url, follow=True)
         self.assertContains(response, 'login-form')
-        self.assertContains(response, hint_template.format(self.u6.username), status_code=200)
+        self.assertContains(response, hint_template.format(self.nostaffuser.username), status_code=200)
 
     def test_add_view(self):
         """Test add view restricts access and actually adds items."""
-
-        login_url = '%s?next=%s' % (reverse('admin:login'), reverse('admin:index'))
         add_dict = {'title': 'Døm ikke',
                     'content': '<p>great article</p>',
                     'date_0': '2008-03-18', 'date_1': '10:54:39',
                     'section': self.s1.pk}
 
         # Change User should not have access to add articles
-        self.client.get(self.index_url)
-        self.client.post(login_url, self.changeuser_login)
+        self.client.force_login(self.changeuser)
         # make sure the view removes test cookie
         self.assertEqual(self.client.session.test_cookie_worked(), False)
         response = self.client.get(reverse('admin:admin_views_article_add'))
@@ -1615,8 +1549,7 @@ class AdminViewPermissionsTest(TestCase):
         self.client.get(reverse('admin:logout'))
 
         # Add user may login and POST to add view, then redirect to admin root
-        self.client.get(self.index_url)
-        self.client.post(login_url, self.adduser_login)
+        self.client.force_login(self.adduser)
         addpage = self.client.get(reverse('admin:admin_views_article_add'))
         change_list_link = '&rsaquo; <a href="%s">Articles</a>' % reverse('admin:admin_views_article_changelist')
         self.assertNotContains(addpage, change_list_link,
@@ -1632,7 +1565,7 @@ class AdminViewPermissionsTest(TestCase):
         addition_log = LogEntry.objects.all()[0]
         new_article = Article.objects.last()
         article_ct = ContentType.objects.get_for_model(Article)
-        self.assertEqual(addition_log.user_id, self.u2.pk)
+        self.assertEqual(addition_log.user_id, self.adduser.pk)
         self.assertEqual(addition_log.content_type_id, article_ct.pk)
         self.assertEqual(addition_log.object_id, str(new_article.pk))
         self.assertEqual(addition_log.object_repr, "Døm ikke")
@@ -1640,8 +1573,7 @@ class AdminViewPermissionsTest(TestCase):
         self.assertEqual(addition_log.change_message, "Added.")
 
         # Super can add too, but is redirected to the change list view
-        self.client.get(self.index_url)
-        self.client.post(login_url, self.super_login)
+        self.client.force_login(self.superuser)
         addpage = self.client.get(reverse('admin:admin_views_article_add'))
         self.assertContains(addpage, change_list_link,
             msg_prefix='Unrestricted user is not given link to change list view in breadcrumbs.')
@@ -1652,17 +1584,14 @@ class AdminViewPermissionsTest(TestCase):
 
         # 8509 - if a normal user is already logged in, it is possible
         # to change user into the superuser without error
-        self.client.login(username='joepublic', password='secret')
+        self.client.force_login(self.joepublicuser)
         # Check and make sure that if user expires, data still persists
-        self.client.get(self.index_url)
-        self.client.post(login_url, self.super_login)
+        self.client.force_login(self.superuser)
         # make sure the view removes test cookie
         self.assertEqual(self.client.session.test_cookie_worked(), False)
 
     def test_change_view(self):
         """Change view should restrict access and allow users to edit items."""
-
-        login_url = '%s?next=%s' % (reverse('admin:login'), reverse('admin:index'))
         change_dict = {'title': 'Ikke fordømt',
                        'content': '<p>edited article</p>',
                        'date_0': '2008-03-18', 'date_1': '10:54:39',
@@ -1671,8 +1600,7 @@ class AdminViewPermissionsTest(TestCase):
         article_changelist_url = reverse('admin:admin_views_article_changelist')
 
         # add user should not be able to view the list of article or change any of them
-        self.client.get(self.index_url)
-        self.client.post(login_url, self.adduser_login)
+        self.client.force_login(self.adduser)
         response = self.client.get(article_changelist_url)
         self.assertEqual(response.status_code, 403)
         response = self.client.get(article_change_url)
@@ -1682,8 +1610,7 @@ class AdminViewPermissionsTest(TestCase):
         self.client.get(reverse('admin:logout'))
 
         # change user can view all items and edit them
-        self.client.get(self.index_url)
-        self.client.post(login_url, self.changeuser_login)
+        self.client.force_login(self.changeuser)
         response = self.client.get(article_changelist_url)
         self.assertEqual(response.status_code, 200)
         response = self.client.get(article_change_url)
@@ -1709,8 +1636,8 @@ class AdminViewPermissionsTest(TestCase):
         r2 = RowLevelChangePermissionModel.objects.create(id=2, name="even id")
         change_url_1 = reverse('admin:admin_views_rowlevelchangepermissionmodel_change', args=(r1.pk,))
         change_url_2 = reverse('admin:admin_views_rowlevelchangepermissionmodel_change', args=(r2.pk,))
-        for login_dict in [self.super_login, self.changeuser_login, self.adduser_login, self.deleteuser_login]:
-            self.client.post(login_url, login_dict)
+        for login_user in [self.superuser, self.adduser, self.changeuser, self.deleteuser]:
+            self.client.force_login(login_user)
             response = self.client.get(change_url_1)
             self.assertEqual(response.status_code, 403)
             response = self.client.post(change_url_1, {'name': 'changed'})
@@ -1723,8 +1650,8 @@ class AdminViewPermissionsTest(TestCase):
             self.assertRedirects(response, self.index_url)
             self.client.get(reverse('admin:logout'))
 
-        for login_dict in [self.joepublic_login, self.no_username_login]:
-            self.client.post(login_url, login_dict)
+        for login_user in [self.joepublicuser, self.nostaffuser]:
+            self.client.force_login(login_user)
             response = self.client.get(change_url_1, follow=True)
             self.assertContains(response, 'login-form')
             response = self.client.post(change_url_1, {'name': 'changed'}, follow=True)
@@ -1739,12 +1666,11 @@ class AdminViewPermissionsTest(TestCase):
 
     def test_delete_view(self):
         """Delete view should restrict access and actually delete items."""
-
         delete_dict = {'post': 'yes'}
         delete_url = reverse('admin:admin_views_article_delete', args=(self.a1.pk,))
 
         # add user should not be able to delete articles
-        self.client.login(**self.adduser_login)
+        self.client.force_login(self.adduser)
         response = self.client.get(delete_url)
         self.assertEqual(response.status_code, 403)
         post = self.client.post(delete_url, delete_dict)
@@ -1753,7 +1679,7 @@ class AdminViewPermissionsTest(TestCase):
         self.client.logout()
 
         # Delete user can delete
-        self.client.login(**self.deleteuser_login)
+        self.client.force_login(self.deleteuser)
         response = self.client.get(reverse('admin:admin_views_section_delete', args=(self.s1.pk,)))
         self.assertContains(response, "<h2>Summary</h2>")
         self.assertContains(response, "<li>Articles: 3</li>")
@@ -1776,27 +1702,22 @@ class AdminViewPermissionsTest(TestCase):
 
     def test_history_view(self):
         """History view should restrict access."""
-
-        login_url = '%s?next=%s' % (reverse('admin:login'), reverse('admin:index'))
-
         # add user should not be able to view the list of article or change any of them
-        self.client.get(self.index_url)
-        self.client.post(login_url, self.adduser_login)
+        self.client.force_login(self.adduser)
         response = self.client.get(reverse('admin:admin_views_article_history', args=(self.a1.pk,)))
         self.assertEqual(response.status_code, 403)
         self.client.get(reverse('admin:logout'))
 
         # change user can view all items and edit them
-        self.client.get(self.index_url)
-        self.client.post(login_url, self.changeuser_login)
+        self.client.force_login(self.changeuser)
         response = self.client.get(reverse('admin:admin_views_article_history', args=(self.a1.pk,)))
         self.assertEqual(response.status_code, 200)
 
         # Test redirection when using row-level change permissions. Refs #11513.
         rl1 = RowLevelChangePermissionModel.objects.create(name="odd id")
         rl2 = RowLevelChangePermissionModel.objects.create(name="even id")
-        for login_dict in [self.super_login, self.changeuser_login, self.adduser_login, self.deleteuser_login]:
-            self.client.post(login_url, login_dict)
+        for login_user in [self.superuser, self.adduser, self.changeuser, self.deleteuser]:
+            self.client.force_login(login_user)
             url = reverse('admin:admin_views_rowlevelchangepermissionmodel_history', args=(rl1.pk,))
             response = self.client.get(url)
             self.assertEqual(response.status_code, 403)
@@ -1807,8 +1728,8 @@ class AdminViewPermissionsTest(TestCase):
 
             self.client.get(reverse('admin:logout'))
 
-        for login_dict in [self.joepublic_login, self.no_username_login]:
-            self.client.post(login_url, login_dict)
+        for login_user in [self.joepublicuser, self.nostaffuser]:
+            self.client.force_login(login_user)
             url = reverse('admin:admin_views_rowlevelchangepermissionmodel_history', args=(rl1.pk,))
             response = self.client.get(url, follow=True)
             self.assertContains(response, 'login-form')
@@ -1819,7 +1740,7 @@ class AdminViewPermissionsTest(TestCase):
             self.client.get(reverse('admin:logout'))
 
     def test_history_view_bad_url(self):
-        self.client.post(reverse('admin:login'), self.changeuser_login)
+        self.client.force_login(self.changeuser)
         response = self.client.get(reverse('admin:admin_views_article_history', args=('foo',)))
         self.assertEqual(response.status_code, 404)
 
@@ -1828,7 +1749,7 @@ class AdminViewPermissionsTest(TestCase):
         The foreign key widget should only show the "add related" button if the
         user has permission to add that related item.
         """
-        self.client.login(**self.adduser_login)
+        self.client.force_login(self.adduser)
         # The user can't add sections yet, so they shouldn't see the "add section" link.
         url = reverse('admin:admin_views_article_add')
         add_link_text = 'add_id_section'
@@ -1849,7 +1770,7 @@ class AdminViewPermissionsTest(TestCase):
         def get_change_related(response):
             return response.context['adminform'].form.fields['section'].widget.can_change_related
 
-        self.client.login(**self.adduser_login)
+        self.client.force_login(self.adduser)
         # The user can't change sections yet, so they shouldn't see the "change section" link.
         url = reverse('admin:admin_views_article_add')
         change_link_text = 'change_id_section'
@@ -1872,7 +1793,7 @@ class AdminViewPermissionsTest(TestCase):
         def get_delete_related(response):
             return response.context['adminform'].form.fields['sub_section'].widget.can_delete_related
 
-        self.client.login(**self.adduser_login)
+        self.client.force_login(self.adduser)
         # The user can't delete sections yet, so they shouldn't see the "delete section" link.
         url = reverse('admin:admin_views_article_add')
         delete_link_text = 'delete_id_sub_section'
@@ -1888,7 +1809,7 @@ class AdminViewPermissionsTest(TestCase):
         self.assertContains(response, delete_link_text)
 
     def test_disabled_permissions_when_logged_in(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
         superuser = User.objects.get(username='super')
         superuser.is_active = False
         superuser.save()
@@ -1901,7 +1822,7 @@ class AdminViewPermissionsTest(TestCase):
         self.assertContains(response, 'id="login-form"')
 
     def test_disabled_staff_permissions_when_logged_in(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
         superuser = User.objects.get(username='super')
         superuser.is_staff = False
         superuser.save()
@@ -1922,7 +1843,7 @@ class AdminViewPermissionsTest(TestCase):
         change_user = User.objects.get(username='changeuser')
         permission = get_perm(Article, get_permission_codename('change', opts))
 
-        self.client.login(**self.changeuser_login)
+        self.client.force_login(self.changeuser)
 
         # the user has no module permissions, because this module doesn't exist
         change_user.user_permissions.remove(permission)
@@ -1947,7 +1868,7 @@ class AdminViewPermissionsTest(TestCase):
         self.assertTemplateUsed(response, 'admin/login.html')
 
         # Logged in? Redirect.
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
         response = self.client.get(shortcut_url, follow=False)
         # Can't use self.assertRedirects() because User.get_absolute_url() is silly.
         self.assertEqual(response.status_code, 302)
@@ -1960,25 +1881,25 @@ class AdminViewPermissionsTest(TestCase):
         have any permission for that module (add, change, or delete), so that
         the module is displayed on the admin index page.
         """
-        self.client.login(**self.super_login)
+        self.client.force_login(self.superuser)
         response = self.client.get(self.index_url)
         self.assertContains(response, 'admin_views')
         self.assertContains(response, 'Articles')
         self.client.logout()
 
-        self.client.login(**self.adduser_login)
+        self.client.force_login(self.adduser)
         response = self.client.get(self.index_url)
         self.assertContains(response, 'admin_views')
         self.assertContains(response, 'Articles')
         self.client.logout()
 
-        self.client.login(**self.changeuser_login)
+        self.client.force_login(self.changeuser)
         response = self.client.get(self.index_url)
         self.assertContains(response, 'admin_views')
         self.assertContains(response, 'Articles')
         self.client.logout()
 
-        self.client.login(**self.deleteuser_login)
+        self.client.force_login(self.deleteuser)
         response = self.client.get(self.index_url)
         self.assertContains(response, 'admin_views')
         self.assertContains(response, 'Articles')
@@ -1991,25 +1912,25 @@ class AdminViewPermissionsTest(TestCase):
         """
         index_url = reverse('admin7:index')
 
-        self.client.login(**self.super_login)
+        self.client.force_login(self.superuser)
         response = self.client.get(index_url)
         self.assertNotContains(response, 'admin_views')
         self.assertNotContains(response, 'Articles')
         self.client.logout()
 
-        self.client.login(**self.adduser_login)
+        self.client.force_login(self.adduser)
         response = self.client.get(index_url)
         self.assertNotContains(response, 'admin_views')
         self.assertNotContains(response, 'Articles')
         self.client.logout()
 
-        self.client.login(**self.changeuser_login)
+        self.client.force_login(self.changeuser)
         response = self.client.get(index_url)
         self.assertNotContains(response, 'admin_views')
         self.assertNotContains(response, 'Articles')
         self.client.logout()
 
-        self.client.login(**self.deleteuser_login)
+        self.client.force_login(self.deleteuser)
         response = self.client.get(index_url)
         self.assertNotContains(response, 'admin_views')
         self.assertNotContains(response, 'Articles')
@@ -2044,7 +1965,7 @@ class AdminViewsNoUrlTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u3 = User.objects.create(
+        cls.changeuser = User.objects.create(
             id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
             first_name='Change', last_name='User', email='cuser@example.com',
@@ -2053,19 +1974,11 @@ class AdminViewsNoUrlTest(TestCase):
 
         opts = Report._meta
         # User who can change Reports
-        cls.u3.user_permissions.add(get_perm(Report, get_permission_codename('change', opts)))
-
-        # login POST dict
-        cls.changeuser_login = {
-            REDIRECT_FIELD_NAME: reverse('admin:index'),
-            'username': 'changeuser',
-            'password': 'secret',
-        }
+        cls.changeuser.user_permissions.add(get_perm(Report, get_permission_codename('change', opts)))
 
     def test_no_standard_modeladmin_urls(self):
         """Admin index views don't break when user's ModelAdmin removes standard urls"""
-        self.client.get(reverse('admin:index'))
-        r = self.client.post(reverse('admin:login'), self.changeuser_login)
+        self.client.force_login(self.changeuser)
         r = self.client.get(reverse('admin:index'))
         # we shouldn't get a 500 error caused by a NoReverseMatch
         self.assertEqual(r.status_code, 200)
@@ -2079,42 +1992,18 @@ class AdminViewDeletedObjectsTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u2 = User.objects.create(
-            id=101, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='adduser',
-            first_name='Add', last_name='User', email='auser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u3 = User.objects.create(
-            id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
-            first_name='Change', last_name='User', email='cuser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u4 = User.objects.create(
+        cls.deleteuser = User.objects.create(
             id=103, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='deleteuser',
             first_name='Delete', last_name='User', email='duser@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u5 = User.objects.create(
-            id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
-            first_name='Joe', last_name='Public', email='joepublic@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u6 = User.objects.create(
-            id=106, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='nostaff',
-            first_name='No', last_name='Staff', email='nostaff@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
         cls.s1 = Section.objects.create(name='Test section')
         cls.a1 = Article.objects.create(
             content='<p>Middle content</p>', date=datetime.datetime(2008, 3, 18, 11, 54, 58), section=cls.s1
@@ -2141,7 +2030,7 @@ class AdminViewDeletedObjectsTest(TestCase):
         cls.cy2 = CyclicTwo.objects.create(name='I am recursive too', one_id=1)
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_nesting(self):
         """
@@ -2289,7 +2178,7 @@ class TestGenericRelations(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -2299,7 +2188,7 @@ class TestGenericRelations(TestCase):
         cls.pl3 = Plot.objects.create(name='Corn Conspiracy', team_leader=cls.v1, contact=cls.v1)
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_generic_content_object_in_list_display(self):
         FunkyTag.objects.create(content_object=self.pl3, name='hott')
@@ -2313,42 +2202,12 @@ class AdminViewStringPrimaryKeyTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u2 = User.objects.create(
-            id=101, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='adduser',
-            first_name='Add', last_name='User', email='auser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u3 = User.objects.create(
-            id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
-            first_name='Change', last_name='User', email='cuser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u4 = User.objects.create(
-            id=103, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='deleteuser',
-            first_name='Delete', last_name='User', email='duser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u5 = User.objects.create(
-            id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
-            first_name='Joe', last_name='Public', email='joepublic@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u6 = User.objects.create(
-            id=106, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='nostaff',
-            first_name='No', last_name='Staff', email='nostaff@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
         cls.s1 = Section.objects.create(name='Test section')
         cls.a1 = Article.objects.create(
             content='<p>Middle content</p>', date=datetime.datetime(2008, 3, 18, 11, 54, 58), section=cls.s1
@@ -2369,7 +2228,7 @@ class AdminViewStringPrimaryKeyTest(TestCase):
         LogEntry.objects.log_action(100, content_type_pk, cls.pk, cls.pk, 2, change_message='Changed something')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_get_history_view(self):
         """
@@ -2552,15 +2411,6 @@ class SecureViewTests(TestCase):
     Test behavior of a view protected by the staff_member_required decorator.
     """
 
-    @classmethod
-    def setUpTestData(cls):
-        cls.u1 = User.objects.create(
-            id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
-            first_name='Super', last_name='User', email='super@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-
     def test_secure_view_shows_login_if_not_logged_in(self):
         """
         Ensure that we see the admin login form.
@@ -2588,7 +2438,7 @@ class AdminViewUnicodeTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -2611,7 +2461,7 @@ class AdminViewUnicodeTest(TestCase):
         cls.chap9 = ChapterXtra2.objects.create(chap=cls.chap3, xtra='<Xtra(2) Kjærlighet>')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_unicode_edit(self):
         """
@@ -2664,42 +2514,12 @@ class AdminViewListEditable(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u2 = User.objects.create(
-            id=101, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='adduser',
-            first_name='Add', last_name='User', email='auser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u3 = User.objects.create(
-            id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
-            first_name='Change', last_name='User', email='cuser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u4 = User.objects.create(
-            id=103, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='deleteuser',
-            first_name='Delete', last_name='User', email='duser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u5 = User.objects.create(
-            id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
-            first_name='Joe', last_name='Public', email='joepublic@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u6 = User.objects.create(
-            id=106, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='nostaff',
-            first_name='No', last_name='Staff', email='nostaff@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
         cls.s1 = Section.objects.create(name='Test section')
         cls.a1 = Article.objects.create(
             content='<p>Middle content</p>', date=datetime.datetime(2008, 3, 18, 11, 54, 58), section=cls.s1
@@ -2716,7 +2536,7 @@ class AdminViewListEditable(TestCase):
         cls.per3 = Person.objects.create(name='Guido van Rossum', gender=1, alive=True)
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_inheritance(self):
         Podcast.objects.create(name="This Week in Django",
@@ -3127,42 +2947,18 @@ class AdminSearchTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u2 = User.objects.create(
-            id=101, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='adduser',
-            first_name='Add', last_name='User', email='auser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u3 = User.objects.create(
-            id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
-            first_name='Change', last_name='User', email='cuser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u4 = User.objects.create(
-            id=103, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='deleteuser',
-            first_name='Delete', last_name='User', email='duser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u5 = User.objects.create(
+        cls.joepublicuser = User.objects.create(
             id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
             first_name='Joe', last_name='Public', email='joepublic@example.com',
             is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u6 = User.objects.create(
-            id=106, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='nostaff',
-            first_name='No', last_name='Staff', email='nostaff@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
         cls.s1 = Section.objects.create(name='Test section')
         cls.a1 = Article.objects.create(
             content='<p>Middle content</p>', date=datetime.datetime(2008, 3, 18, 11, 54, 58), section=cls.s1
@@ -3190,7 +2986,7 @@ class AdminSearchTest(TestCase):
         cls.tt4 = TitleTranslation.objects.create(title=cls.t4, text='Bas')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_search_on_sibling_models(self):
         "Check that a search that mentions sibling models"
@@ -3275,7 +3071,7 @@ class AdminInheritedInlinesTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -3283,11 +3079,10 @@ class AdminInheritedInlinesTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_inline(self):
         "Ensure that inline models which inherit from a common parent are correctly handled by admin."
-
         foo_user = "foo username"
         bar_user = "bar username"
 
@@ -3368,7 +3163,7 @@ class AdminActionsTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -3378,7 +3173,7 @@ class AdminActionsTest(TestCase):
         cls.s2 = Subscriber.objects.create(name='Max Mustermann', email='max@example.org')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_model_admin_custom_action(self):
         "Tests a custom action defined in a ModelAdmin method"
@@ -3679,7 +3474,7 @@ class TestCustomChangeList(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -3712,7 +3507,7 @@ class TestInlineNotEditable(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -3737,7 +3532,7 @@ class AdminCustomQuerysetTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -3745,7 +3540,7 @@ class AdminCustomQuerysetTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
         self.pks = [EmptyModel.objects.create().id for i in range(3)]
         self.super_login = {
             REDIRECT_FIELD_NAME: reverse('admin:index'),
@@ -4006,7 +3801,7 @@ class AdminInlineFileUploadTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -4014,7 +3809,7 @@ class AdminInlineFileUploadTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
         # Set up test Picture and Gallery.
         # These must be set up here instead of in fixtures in order to allow Picture
@@ -4058,7 +3853,7 @@ class AdminInlineTests(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -4384,7 +4179,7 @@ class NeverCacheTests(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -4393,7 +4188,7 @@ class NeverCacheTests(TestCase):
         cls.s1 = Section.objects.create(name='Test section')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_admin_index(self):
         "Check the never-cache status of the main index"
@@ -4464,7 +4259,7 @@ class PrePopulatedTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -4473,7 +4268,7 @@ class PrePopulatedTest(TestCase):
         cls.p1 = PrePopulatedPost.objects.create(title='A Long Title', published=True, slug='a-long-title')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_prepopulated_on(self):
         response = self.client.get(reverse('admin:admin_views_prepopulatedpost_add'))
@@ -4506,7 +4301,7 @@ class SeleniumAdminViewsFirefoxTests(AdminSeleniumWebDriverTestCase):
     webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'
 
     def setUp(self):
-        self.u1 = User.objects.create(
+        self.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -4777,7 +4572,7 @@ class ReadonlyTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -4785,7 +4580,7 @@ class ReadonlyTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     @ignore_warnings(category=RemovedInDjango20Warning)  # for allow_tags deprecation
     def test_readonly_get(self):
@@ -4917,7 +4712,7 @@ class LimitChoicesToInAdminTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -4925,7 +4720,7 @@ class LimitChoicesToInAdminTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_limit_choices_to_as_callable(self):
         """Test for ticket 2445 changes to admin."""
@@ -4949,7 +4744,7 @@ class RawIdFieldsTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -4957,7 +4752,7 @@ class RawIdFieldsTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_limit_choices_to(self):
         """Regression test for 14880"""
@@ -5047,42 +4842,24 @@ class UserAdminTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u2 = User.objects.create(
+        cls.adduser = User.objects.create(
             id=101, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='adduser',
             first_name='Add', last_name='User', email='auser@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u3 = User.objects.create(
+        cls.changeuser = User.objects.create(
             id=102, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='changeuser',
             first_name='Change', last_name='User', email='cuser@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u4 = User.objects.create(
-            id=103, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='deleteuser',
-            first_name='Delete', last_name='User', email='duser@example.com',
-            is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u5 = User.objects.create(
-            id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
-            first_name='Joe', last_name='Public', email='joepublic@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
-        cls.u6 = User.objects.create(
-            id=106, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
-            last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='nostaff',
-            first_name='No', last_name='Staff', email='nostaff@example.com',
-            is_staff=False, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
-        )
         cls.s1 = Section.objects.create(name='Test section')
         cls.a1 = Article.objects.create(
             content='<p>Middle content</p>', date=datetime.datetime(2008, 3, 18, 11, 54, 58), section=cls.s1
@@ -5100,7 +4877,7 @@ class UserAdminTest(TestCase):
         cls.per3 = Person.objects.create(name='Guido van Rossum', gender=1, alive=True)
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_save_button(self):
         user_count = User.objects.count()
@@ -5236,7 +5013,7 @@ class GroupAdminTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -5244,7 +5021,7 @@ class GroupAdminTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_save_button(self):
         group_count = Group.objects.count()
@@ -5273,7 +5050,7 @@ class CSSTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -5292,7 +5069,7 @@ class CSSTest(TestCase):
         cls.p1 = PrePopulatedPost.objects.create(title='A Long Title', published=True, slug='a-long-title')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     @ignore_warnings(category=RemovedInDjango20Warning)  # for allow_tags deprecation
     def test_field_prefix_css_classes(self):
@@ -5411,7 +5188,7 @@ class AdminDocsTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -5419,7 +5196,7 @@ class AdminDocsTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_tags(self):
         response = self.client.get(reverse('django-admindocs-tags'))
@@ -5474,7 +5251,7 @@ class ValidXHTMLTests(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -5482,7 +5259,7 @@ class ValidXHTMLTests(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_lang_name_present(self):
         response = self.client.get(reverse('admin:app_list', args=('admin_views',)))
@@ -5497,7 +5274,7 @@ class DateHierarchyTests(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -5505,7 +5282,7 @@ class DateHierarchyTests(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def tearDown(self):
         formats.reset_format_cache()
@@ -5631,7 +5408,7 @@ class AdminCustomSaveRelatedTests(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -5639,7 +5416,7 @@ class AdminCustomSaveRelatedTests(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_should_be_able_to_edit_related_objects_on_add_view(self):
         post = {
@@ -5704,7 +5481,7 @@ class AdminViewLogoutTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -5712,7 +5489,7 @@ class AdminViewLogoutTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_client_logout_url_can_be_used_to_login(self):
         response = self.client.get(reverse('admin:logout'))
@@ -5738,7 +5515,7 @@ class AdminUserMessageTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -5746,7 +5523,7 @@ class AdminUserMessageTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def send_message(self, level):
         """
@@ -5802,13 +5579,13 @@ class AdminKeepChangeListFiltersTests(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
             is_staff=True, is_active=True, date_joined=datetime.datetime(2007, 5, 30, 13, 20, 10)
         )
-        cls.u5 = User.objects.create(
+        cls.joepublicuser = User.objects.create(
             id=104, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=False, username='joepublic',
             first_name='Joe', last_name='Public', email='joepublic@example.com',
@@ -5816,7 +5593,7 @@ class AdminKeepChangeListFiltersTests(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def assertURLEqual(self, url1, url2):
         """
@@ -5842,7 +5619,7 @@ class AdminKeepChangeListFiltersTests(TestCase):
 
     def test_assert_url_equal(self):
         # Test equality.
-        change_user_url = reverse('admin:auth_user_change', args=(self.u5.pk,))
+        change_user_url = reverse('admin:auth_user_change', args=(self.joepublicuser.pk,))
         self.assertURLEqual(
             'http://testserver{}?_changelist_filters=is_staff__exact%3D0%26is_superuser__exact%3D0'.format(
                 change_user_url
@@ -5898,7 +5675,7 @@ class AdminKeepChangeListFiltersTests(TestCase):
         })
 
     def get_sample_user_id(self):
-        return self.u5.pk
+        return self.joepublicuser.pk
 
     def get_changelist_url(self):
         return '%s?%s' % (
@@ -5947,7 +5724,7 @@ class AdminKeepChangeListFiltersTests(TestCase):
 
         # Check the `change_view` link has the correct querystring.
         detail_link = re.search(
-            '<a href="(.*?)">{}</a>'.format(self.u5.username),
+            '<a href="(.*?)">{}</a>'.format(self.joepublicuser.username),
             force_text(response.content)
         )
         self.assertURLEqual(detail_link.group(1), self.get_change_url())
@@ -6106,7 +5883,7 @@ class TestLabelVisibility(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -6114,7 +5891,7 @@ class TestLabelVisibility(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_all_fields_visible(self):
         response = self.client.get(reverse('admin:admin_views_emptymodelvisible_add'))
@@ -6153,7 +5930,7 @@ class AdminViewOnSiteTests(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -6177,7 +5954,7 @@ class AdminViewOnSiteTests(TestCase):
         cls.w3 = Worker.objects.create(work_at=cls.r1, name='John', surname='Doe')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_add_view_form_and_formsets_run_validation(self):
         """
@@ -6290,7 +6067,7 @@ class InlineAdminViewOnSiteTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -6314,7 +6091,7 @@ class InlineAdminViewOnSiteTest(TestCase):
         cls.w3 = Worker.objects.create(work_at=cls.r1, name='John', surname='Doe')
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_false(self):
         "Ensure that the 'View on site' button is not displayed if view_on_site is False"
@@ -6365,7 +6142,7 @@ class GetFormsetsWithInlinesArgumentTest(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.u1 = User.objects.create(
+        cls.superuser = User.objects.create(
             id=100, password='sha1$995a3$6011485ea3834267d719b4c801409b8b1ddd0158',
             last_login=datetime.datetime(2007, 5, 30, 13, 20, 10), is_superuser=True, username='super',
             first_name='Super', last_name='User', email='super@example.com',
@@ -6373,7 +6150,7 @@ class GetFormsetsWithInlinesArgumentTest(TestCase):
         )
 
     def setUp(self):
-        self.client.login(username='super', password='secret')
+        self.client.force_login(self.superuser)
 
     def test_explicitly_provided_pk(self):
         post_data = {'name': '1'}