Refs #24652 -- Used SimpleTestCase where appropriate.

tests/absolute_url_overrides/tests.py

@@ -1,8 +1,8 @@
 from django.db import models
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 
-class AbsoluteUrlOverrideTests(TestCase):
+class AbsoluteUrlOverrideTests(SimpleTestCase):
 
     def test_get_absolute_url(self):
         """

tests/admin_checks/tests.py

@@ -4,7 +4,7 @@ from django import forms
 from django.contrib import admin
 from django.contrib.contenttypes.admin import GenericStackedInline
 from django.core import checks
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 
 from .models import Album, Book, City, Influence, Song, State, TwoAlbumFKAndAnE
 
@@ -41,7 +41,7 @@ class MyAdmin(admin.ModelAdmin):
     SILENCED_SYSTEM_CHECKS=['fields.W342'],  # ForeignKey(unique=True)
     INSTALLED_APPS=['django.contrib.auth', 'django.contrib.contenttypes', 'admin_checks']
 )
-class SystemChecksTestCase(TestCase):
+class SystemChecksTestCase(SimpleTestCase):
 
     @override_settings(DEBUG=True)
     def test_checks_are_performed(self):

tests/admin_registration/tests.py

@@ -4,7 +4,7 @@ from django.contrib import admin
 from django.contrib.admin.decorators import register
 from django.contrib.admin.sites import site
 from django.core.exceptions import ImproperlyConfigured
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 from .models import Location, Person, Place, Traveler
 
@@ -18,7 +18,7 @@ class CustomSite(admin.AdminSite):
     pass
 
 
-class TestRegistration(TestCase):
+class TestRegistration(SimpleTestCase):
     def setUp(self):
         self.site = admin.AdminSite()
 
@@ -80,7 +80,7 @@ class TestRegistration(TestCase):
         self.assertFalse(self.site.is_registered(Person))
 
 
-class TestRegistrationDecorator(TestCase):
+class TestRegistrationDecorator(SimpleTestCase):
     """
     Tests the register decorator in admin.decorators
 

tests/admin_scripts/tests.py

@@ -25,7 +25,9 @@ from django.core.management import (
 from django.db import ConnectionHandler
 from django.db.migrations.exceptions import MigrationSchemaMissing
 from django.db.migrations.recorder import MigrationRecorder
-from django.test import LiveServerTestCase, TestCase, mock, override_settings
+from django.test import (
+    LiveServerTestCase, SimpleTestCase, mock, override_settings,
+)
 from django.test.runner import DiscoverRunner
 from django.utils._os import npath, upath
 from django.utils.encoding import force_text
@@ -1695,7 +1697,7 @@ class CommandTypes(AdminScriptTestCase):
         self.assertOutput(out, "EXECUTE:LabelCommand label=anotherlabel, options=[('no_color', False), ('pythonpath', None), ('settings', None), ('traceback', False), ('verbosity', 1)]")
 
 
-class Discovery(TestCase):
+class Discovery(SimpleTestCase):
 
     def test_precedence(self):
         """

tests/admin_views/tests.py

@@ -27,7 +27,8 @@ from django.forms.utils import ErrorList
 from django.template.loader import render_to_string
 from django.template.response import TemplateResponse
 from django.test import (
-    TestCase, modify_settings, override_settings, skipUnlessDBFeature,
+    SimpleTestCase, TestCase, modify_settings, override_settings,
+    skipUnlessDBFeature,
 )
 from django.test.utils import override_script_prefix, patch_logger
 from django.utils import formats, six, translation
@@ -6150,7 +6151,7 @@ class InlineAdminViewOnSiteTest(TestCase):
 
 
 @override_settings(ROOT_URLCONF="admin_views.urls")
-class TestEtagWithAdminView(TestCase):
+class TestEtagWithAdminView(SimpleTestCase):
     # See https://code.djangoproject.com/ticket/16003
 
     def test_admin(self):

tests/admin_widgets/tests.py

@@ -5,7 +5,7 @@ import gettext
 import os
 from datetime import datetime, timedelta
 from importlib import import_module
-from unittest import TestCase, skipIf
+from unittest import skipIf
 
 from django import forms
 from django.conf import settings
@@ -17,7 +17,7 @@ from django.core.files.storage import default_storage
 from django.core.files.uploadedfile import SimpleUploadedFile
 from django.core.urlresolvers import reverse
 from django.db.models import CharField, DateField
-from django.test import TestCase as DjangoTestCase, override_settings
+from django.test import SimpleTestCase, TestCase, override_settings
 from django.utils import six, translation
 
 from . import models
@@ -59,7 +59,7 @@ class SeleniumDataMixin(object):
         )
 
 
-class AdminFormfieldForDBFieldTests(TestCase):
+class AdminFormfieldForDBFieldTests(SimpleTestCase):
     """
     Tests for correct behavior of ModelAdmin.formfield_for_dbfield
     """
@@ -194,7 +194,7 @@ class AdminFormfieldForDBFieldTests(TestCase):
 
 @override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
-class AdminFormfieldForDBFieldWithRequestTests(TestDataMixin, DjangoTestCase):
+class AdminFormfieldForDBFieldWithRequestTests(TestDataMixin, TestCase):
 
     def test_filter_choices_by_request_user(self):
         """
@@ -208,7 +208,7 @@ class AdminFormfieldForDBFieldWithRequestTests(TestDataMixin, DjangoTestCase):
 
 @override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
-class AdminForeignKeyWidgetChangeList(TestDataMixin, DjangoTestCase):
+class AdminForeignKeyWidgetChangeList(TestDataMixin, TestCase):
 
     def setUp(self):
         self.client.login(username="super", password="secret")
@@ -220,7 +220,7 @@ class AdminForeignKeyWidgetChangeList(TestDataMixin, DjangoTestCase):
 
 @override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
-class AdminForeignKeyRawIdWidget(TestDataMixin, DjangoTestCase):
+class AdminForeignKeyRawIdWidget(TestDataMixin, TestCase):
 
     def setUp(self):
         self.client.login(username="super", password="secret")
@@ -262,7 +262,7 @@ class AdminForeignKeyRawIdWidget(TestDataMixin, DjangoTestCase):
         self.assertEqual(lookup1, lookup2)
 
 
-class FilteredSelectMultipleWidgetTest(DjangoTestCase):
+class FilteredSelectMultipleWidgetTest(SimpleTestCase):
     def test_render(self):
         # Backslash in verbose_name to ensure it is JavaScript escaped.
         w = widgets.FilteredSelectMultiple('test\\', False)
@@ -284,7 +284,7 @@ class FilteredSelectMultipleWidgetTest(DjangoTestCase):
         )
 
 
-class AdminDateWidgetTest(DjangoTestCase):
+class AdminDateWidgetTest(SimpleTestCase):
     def test_attrs(self):
         """
         Ensure that user-supplied attrs are used.
@@ -303,7 +303,7 @@ class AdminDateWidgetTest(DjangoTestCase):
         )
 
 
-class AdminTimeWidgetTest(DjangoTestCase):
+class AdminTimeWidgetTest(SimpleTestCase):
     def test_attrs(self):
         """
         Ensure that user-supplied attrs are used.
@@ -322,7 +322,7 @@ class AdminTimeWidgetTest(DjangoTestCase):
         )
 
 
-class AdminSplitDateTimeWidgetTest(DjangoTestCase):
+class AdminSplitDateTimeWidgetTest(SimpleTestCase):
     def test_render(self):
         w = widgets.AdminSplitDateTime()
         self.assertHTMLEqual(
@@ -341,7 +341,7 @@ class AdminSplitDateTimeWidgetTest(DjangoTestCase):
             )
 
 
-class AdminURLWidgetTest(DjangoTestCase):
+class AdminURLWidgetTest(SimpleTestCase):
     def test_render(self):
         w = widgets.AdminURLFieldWidget()
         self.assertHTMLEqual(
@@ -382,7 +382,7 @@ class AdminURLWidgetTest(DjangoTestCase):
     PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls',
 )
-class AdminFileWidgetTests(TestDataMixin, DjangoTestCase):
+class AdminFileWidgetTests(TestDataMixin, TestCase):
 
     @classmethod
     def setUpTestData(cls):
@@ -436,7 +436,7 @@ class AdminFileWidgetTests(TestDataMixin, DjangoTestCase):
 
 
 @override_settings(ROOT_URLCONF='admin_widgets.urls')
-class ForeignKeyRawIdWidgetTest(DjangoTestCase):
+class ForeignKeyRawIdWidgetTest(TestCase):
 
     def test_render(self):
         band = models.Band.objects.create(name='Linkin Park')
@@ -519,7 +519,7 @@ class ForeignKeyRawIdWidgetTest(DjangoTestCase):
 
 
 @override_settings(ROOT_URLCONF='admin_widgets.urls')
-class ManyToManyRawIdWidgetTest(DjangoTestCase):
+class ManyToManyRawIdWidgetTest(TestCase):
 
     def test_render(self):
         band = models.Band.objects.create(name='Linkin Park')
@@ -566,7 +566,7 @@ class ManyToManyRawIdWidgetTest(DjangoTestCase):
         )
 
 
-class RelatedFieldWidgetWrapperTests(DjangoTestCase):
+class RelatedFieldWidgetWrapperTests(SimpleTestCase):
     def test_no_can_add_related(self):
         rel = models.Individual._meta.get_field('parent').remote_field
         w = widgets.AdminRadioSelect()

tests/app_loading/tests.py

@@ -3,13 +3,13 @@ from __future__ import unicode_literals
 import os
 
 from django.apps import apps
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.utils import extend_sys_path
 from django.utils import six
 from django.utils._os import upath
 
 
-class EggLoadingTest(TestCase):
+class EggLoadingTest(SimpleTestCase):
 
     def setUp(self):
         self.egg_dir = '%s/eggs' % os.path.dirname(upath(__file__))
@@ -62,7 +62,7 @@ class EggLoadingTest(TestCase):
                     pass
 
 
-class GetModelsTest(TestCase):
+class GetModelsTest(SimpleTestCase):
     def setUp(self):
         from .not_installed import models
         self.not_installed_module = models

tests/apps/tests.py

@@ -10,7 +10,7 @@ from django.apps.registry import Apps
 from django.contrib.admin.models import LogEntry
 from django.core.exceptions import AppRegistryNotReady, ImproperlyConfigured
 from django.db import models
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.test.utils import extend_sys_path
 from django.utils import six
 from django.utils._os import upath
@@ -38,7 +38,7 @@ SOME_INSTALLED_APPS_NAMES = [
 HERE = os.path.dirname(upath(__file__))
 
 
-class AppsTests(TestCase):
+class AppsTests(SimpleTestCase):
 
     def test_singleton_master(self):
         """
@@ -303,7 +303,7 @@ class Stub(object):
         self.__dict__.update(kwargs)
 
 
-class AppConfigTests(TestCase):
+class AppConfigTests(SimpleTestCase):
     """Unit tests for AppConfig class."""
     def test_path_set_explicitly(self):
         """If subclass sets path as class attr, no module attributes needed."""
@@ -366,7 +366,7 @@ class AppConfigTests(TestCase):
 @skipUnless(
     sys.version_info > (3, 3, 0),
     "Namespace packages sans __init__.py were added in Python 3.3")
-class NamespacePackageAppTests(TestCase):
+class NamespacePackageAppTests(SimpleTestCase):
     # We need nsapp to be top-level so our multiple-paths tests can add another
     # location for it (if its inside a normal package with an __init__.py that
     # isn't possible). In order to avoid cluttering the already-full tests/ dir

tests/auth_tests/test_auth_backends.py

@@ -12,7 +12,9 @@ from django.contrib.auth.tests.custom_user import CustomUser, ExtensionUser
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import ImproperlyConfigured, PermissionDenied
 from django.http import HttpRequest
-from django.test import TestCase, modify_settings, override_settings
+from django.test import (
+    SimpleTestCase, TestCase, modify_settings, override_settings,
+)
 
 from .models import CustomPermissionsUser, UUIDUser
 
@@ -394,7 +396,7 @@ class RowlevelBackendTest(TestCase):
 @override_settings(
     AUTHENTICATION_BACKENDS=['auth_tests.test_auth_backends.SimpleRowlevelBackend'],
 )
-class AnonymousUserBackendTest(TestCase):
+class AnonymousUserBackendTest(SimpleTestCase):
     """
     Tests for AnonymousUser delegating to backend.
     """

tests/auth_tests/test_context_processors.py

@@ -5,7 +5,7 @@ from django.contrib.auth.context_processors import PermLookupDict, PermWrapper
 from django.contrib.auth.models import Permission, User
 from django.contrib.contenttypes.models import ContentType
 from django.db.models import Q
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, TestCase, override_settings
 
 from .settings import AUTH_MIDDLEWARE_CLASSES, AUTH_TEMPLATES
 
@@ -22,7 +22,7 @@ class MockUser(object):
         return False
 
 
-class PermWrapperTests(TestCase):
+class PermWrapperTests(SimpleTestCase):
     """
     Test some details of the PermWrapper implementation.
     """

tests/auth_tests/test_forms.py

@@ -14,7 +14,7 @@ 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
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, TestCase, override_settings
 from django.utils import translation
 from django.utils.encoding import force_text
 from django.utils.text import capfirst
@@ -553,7 +553,7 @@ class PasswordResetFormTest(TestDataMixin, TestCase):
         )
 
 
-class ReadOnlyPasswordHashTest(TestCase):
+class ReadOnlyPasswordHashTest(SimpleTestCase):
 
     def test_bug_19349_render_with_none_value(self):
         # Rendering the widget with value set to None

tests/auth_tests/test_management.py

@@ -17,7 +17,9 @@ from django.contrib.contenttypes.models import ContentType
 from django.core import checks, exceptions
 from django.core.management import call_command
 from django.core.management.base import CommandError
-from django.test import TestCase, override_settings, override_system_checks
+from django.test import (
+    SimpleTestCase, TestCase, override_settings, override_system_checks,
+)
 from django.utils import six
 from django.utils.encoding import force_str
 from django.utils.translation import ugettext_lazy as _
@@ -415,7 +417,7 @@ class CreatesuperuserManagementCommandTestCase(TestCase):
         test(self)
 
 
-class CustomUserModelValidationTestCase(TestCase):
+class CustomUserModelValidationTestCase(SimpleTestCase):
     @override_settings(AUTH_USER_MODEL='auth.CustomUserNonListRequiredFields')
     @override_system_checks([check_user_model])
     def test_required_fields_is_list(self):

tests/backends/tests.py

@@ -25,8 +25,8 @@ from django.db.models import Avg, StdDev, Sum, Variance
 from django.db.models.sql.constants import CURSOR
 from django.db.utils import ConnectionHandler
 from django.test import (
-    TestCase, TransactionTestCase, mock, override_settings, skipIfDBFeature,
-    skipUnlessDBFeature,
+    SimpleTestCase, TestCase, TransactionTestCase, mock, override_settings,
+    skipIfDBFeature, skipUnlessDBFeature,
 )
 from django.test.utils import str_prefix
 from django.utils import six
@@ -35,7 +35,7 @@ from django.utils.six.moves import range
 from . import models
 
 
-class DummyBackendTest(TestCase):
+class DummyBackendTest(SimpleTestCase):
 
     def test_no_databases(self):
         """
@@ -1096,7 +1096,7 @@ class DBConstraintTestCase(TestCase):
         self.assertEqual(intermediary_model.objects.count(), 2)
 
 
-class BackendUtilTests(TestCase):
+class BackendUtilTests(SimpleTestCase):
 
     def test_format_number(self):
         """

tests/basic/tests.py

@@ -11,7 +11,8 @@ from django.db.models.fields.related import ForeignObjectRel
 from django.db.models.manager import BaseManager
 from django.db.models.query import EmptyQuerySet, QuerySet
 from django.test import (
-    TestCase, TransactionTestCase, skipIfDBFeature, skipUnlessDBFeature,
+    SimpleTestCase, TestCase, TransactionTestCase, skipIfDBFeature,
+    skipUnlessDBFeature,
 )
 from django.utils import six
 from django.utils.translation import ugettext_lazy
@@ -594,7 +595,7 @@ class ConcurrentSaveTests(TransactionTestCase):
         self.assertEqual(Article.objects.get(pk=a.pk).headline, 'foo')
 
 
-class ManagerTest(TestCase):
+class ManagerTest(SimpleTestCase):
     QUERYSET_PROXY_METHODS = [
         'none',
         'count',
@@ -772,7 +773,7 @@ class ModelRefreshTests(TestCase):
             a.refresh_from_db(fields=[])
 
 
-class TestRelatedObjectDeprecation(TestCase):
+class TestRelatedObjectDeprecation(SimpleTestCase):
     def test_field_related_deprecation(self):
         field = SelfRef._meta.get_field('selfref')
         with warnings.catch_warnings(record=True) as warns:

tests/cache/tests.py

@@ -30,7 +30,8 @@ from django.template import engines
 from django.template.context_processors import csrf
 from django.template.response import TemplateResponse
 from django.test import (
-    RequestFactory, TestCase, TransactionTestCase, override_settings,
+    RequestFactory, SimpleTestCase, TestCase, TransactionTestCase,
+    override_settings,
 )
 from django.test.signals import setting_changed
 from django.utils import six, timezone, translation
@@ -69,7 +70,7 @@ class Unpickable(object):
         'BACKEND': 'django.core.cache.backends.dummy.DummyCache',
     }
 })
-class DummyCacheTests(TestCase):
+class DummyCacheTests(SimpleTestCase):
     # The Dummy cache backend doesn't really behave like a test backend,
     # so it has its own test case.
 
@@ -1235,7 +1236,7 @@ class FileBasedCacheTests(BaseCacheTests, TestCase):
         'BACKEND': 'cache.liberal_backend.CacheClass',
     },
 })
-class CustomCacheKeyValidationTests(TestCase):
+class CustomCacheKeyValidationTests(SimpleTestCase):
     """
     Tests for the ability to mixin a custom ``validate_key`` method to
     a custom cache backend that otherwise inherits from a builtin
@@ -1257,7 +1258,7 @@ class CustomCacheKeyValidationTests(TestCase):
         }
     }
 )
-class CacheClosingTests(TestCase):
+class CacheClosingTests(SimpleTestCase):
 
     def test_close(self):
         self.assertFalse(cache.closed)
@@ -1275,7 +1276,7 @@ NEVER_EXPIRING_CACHES_SETTINGS = copy.deepcopy(DEFAULT_MEMORY_CACHES_SETTINGS)
 NEVER_EXPIRING_CACHES_SETTINGS['default']['TIMEOUT'] = None
 
 
-class DefaultNonExpiringCacheKeyTests(TestCase):
+class DefaultNonExpiringCacheKeyTests(SimpleTestCase):
     """Tests that verify that settings having Cache arguments with a TIMEOUT
     set to `None` will create Caches that will set non-expiring keys.
 
@@ -1351,7 +1352,7 @@ class DefaultNonExpiringCacheKeyTests(TestCase):
     },
     USE_I18N=False,
 )
-class CacheUtils(TestCase):
+class CacheUtils(SimpleTestCase):
     """TestCase for django.utils.cache functions."""
 
     def setUp(self):
@@ -1500,7 +1501,7 @@ class PrefixedCacheUtils(CacheUtils):
         },
     },
 )
-class CacheHEADTest(TestCase):
+class CacheHEADTest(SimpleTestCase):
 
     def setUp(self):
         self.path = '/cache/test/'
@@ -1820,7 +1821,7 @@ def csrf_view(request):
         },
     },
 )
-class CacheMiddlewareTest(TestCase):
+class CacheMiddlewareTest(SimpleTestCase):
 
     def setUp(self):
         super(CacheMiddlewareTest, self).setUp()
@@ -2001,7 +2002,7 @@ class CacheMiddlewareTest(TestCase):
     },
     USE_I18N=False,
 )
-class TestWithTemplateResponse(TestCase):
+class TestWithTemplateResponse(SimpleTestCase):
     """
     Tests various headers w/ TemplateResponse.
 
@@ -2097,7 +2098,7 @@ class TestWithTemplateResponse(TestCase):
         self.assertTrue(response.has_header('ETag'))
 
 
-class TestMakeTemplateFragmentKey(TestCase):
+class TestMakeTemplateFragmentKey(SimpleTestCase):
     def test_without_vary_on(self):
         key = make_template_fragment_key('a.fragment')
         self.assertEqual(key, 'template.cache.a.fragment.d41d8cd98f00b204e9800998ecf8427e')
@@ -2118,7 +2119,7 @@ class TestMakeTemplateFragmentKey(TestCase):
             'template.cache.spam.f27688177baec990cdf3fbd9d9c3f469')
 
 
-class CacheHandlerTest(TestCase):
+class CacheHandlerTest(SimpleTestCase):
     def test_same_instance(self):
         """
         Attempting to retrieve the same alias should yield the same instance.

tests/check_framework/test_security.py

@@ -1,10 +1,10 @@
 from django.conf import settings
 from django.core.checks.security import base, csrf, sessions
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.utils import override_settings
 
 
-class CheckSessionCookieSecureTest(TestCase):
+class CheckSessionCookieSecureTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.sessions import check_session_cookie_secure
@@ -55,7 +55,7 @@ class CheckSessionCookieSecureTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckSessionCookieHttpOnlyTest(TestCase):
+class CheckSessionCookieHttpOnlyTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.sessions import check_session_cookie_httponly
@@ -106,7 +106,7 @@ class CheckSessionCookieHttpOnlyTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckCSRFMiddlewareTest(TestCase):
+class CheckCSRFMiddlewareTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.csrf import check_csrf_middleware
@@ -125,7 +125,7 @@ class CheckCSRFMiddlewareTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckCSRFCookieSecureTest(TestCase):
+class CheckCSRFCookieSecureTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.csrf import check_csrf_cookie_secure
@@ -156,7 +156,7 @@ class CheckCSRFCookieSecureTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckCSRFCookieHttpOnlyTest(TestCase):
+class CheckCSRFCookieHttpOnlyTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.csrf import check_csrf_cookie_httponly
@@ -187,7 +187,7 @@ class CheckCSRFCookieHttpOnlyTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckSecurityMiddlewareTest(TestCase):
+class CheckSecurityMiddlewareTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_security_middleware
@@ -206,7 +206,7 @@ class CheckSecurityMiddlewareTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckStrictTransportSecurityTest(TestCase):
+class CheckStrictTransportSecurityTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_sts
@@ -238,7 +238,7 @@ class CheckStrictTransportSecurityTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckStrictTransportSecuritySubdomainsTest(TestCase):
+class CheckStrictTransportSecuritySubdomainsTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_sts_include_subdomains
@@ -282,7 +282,7 @@ class CheckStrictTransportSecuritySubdomainsTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckXFrameOptionsMiddlewareTest(TestCase):
+class CheckXFrameOptionsMiddlewareTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_xframe_options_middleware
@@ -300,7 +300,7 @@ class CheckXFrameOptionsMiddlewareTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckXFrameOptionsDenyTest(TestCase):
+class CheckXFrameOptionsDenyTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_xframe_deny
@@ -333,7 +333,7 @@ class CheckXFrameOptionsDenyTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckContentTypeNosniffTest(TestCase):
+class CheckContentTypeNosniffTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_content_type_nosniff
@@ -365,7 +365,7 @@ class CheckContentTypeNosniffTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckXssFilterTest(TestCase):
+class CheckXssFilterTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_xss_filter
@@ -397,7 +397,7 @@ class CheckXssFilterTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckSSLRedirectTest(TestCase):
+class CheckSSLRedirectTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_ssl_redirect
@@ -429,7 +429,7 @@ class CheckSSLRedirectTest(TestCase):
         self.assertEqual(self.func(None), [])
 
 
-class CheckSecretKeyTest(TestCase):
+class CheckSecretKeyTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_secret_key
@@ -466,7 +466,7 @@ class CheckSecretKeyTest(TestCase):
         self.assertEqual(self.func(None), [base.W009])
 
 
-class CheckDebugTest(TestCase):
+class CheckDebugTest(SimpleTestCase):
     @property
     def func(self):
         from django.core.checks.security.base import check_debug

tests/check_framework/tests.py

@@ -10,7 +10,7 @@ from django.core.checks.registry import CheckRegistry
 from django.core.management import call_command
 from django.core.management.base import CommandError
 from django.db import models
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.utils import override_settings, override_system_checks
 from django.utils.encoding import force_text
 from django.utils.six import StringIO
@@ -23,7 +23,7 @@ class DummyObj(object):
         return "obj"
 
 
-class SystemCheckFrameworkTests(TestCase):
+class SystemCheckFrameworkTests(SimpleTestCase):
 
     def test_register_and_run_checks(self):
 
@@ -69,7 +69,7 @@ class SystemCheckFrameworkTests(TestCase):
         self.assertEqual(sorted(errors), [4, 5])
 
 
-class MessageTests(TestCase):
+class MessageTests(SimpleTestCase):
 
     def test_printing(self):
         e = Error("Message", hint="Hint", obj=DummyObj())
@@ -126,7 +126,7 @@ def deployment_system_check(**kwargs):
 deployment_system_check.tags = ['deploymenttag']
 
 
-class CheckCommandTests(TestCase):
+class CheckCommandTests(SimpleTestCase):
 
     def setUp(self):
         simple_system_check.kwargs = None
@@ -213,7 +213,7 @@ def custom_warning_system_check(app_configs, **kwargs):
     ]
 
 
-class SilencingCheckTests(TestCase):
+class SilencingCheckTests(SimpleTestCase):
 
     def setUp(self):
         self.old_stdout, self.old_stderr = sys.stdout, sys.stderr
@@ -266,7 +266,7 @@ class IsolateModelsMixin(object):
         apps.clear_cache()
 
 
-class CheckFrameworkReservedNamesTests(IsolateModelsMixin, TestCase):
+class CheckFrameworkReservedNamesTests(IsolateModelsMixin, SimpleTestCase):
     @override_settings(
         SILENCED_SYSTEM_CHECKS=['models.E20', 'fields.W342'],  # ForeignKey(unique=True)
         INSTALLED_APPS=['django.contrib.auth', 'django.contrib.contenttypes', 'check_framework']

tests/conditional_processing/tests.py

@@ -3,7 +3,7 @@ from __future__ import unicode_literals
 
 from datetime import datetime
 
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 
 FULL_RESPONSE = 'Test conditional get response'
 LAST_MODIFIED = datetime(2007, 10, 21, 23, 21, 47)
@@ -16,7 +16,7 @@ EXPIRED_ETAG = '7fae4cd4b0f81e7d2914700043aa8ed6'
 
 
 @override_settings(ROOT_URLCONF='conditional_processing.urls')
-class ConditionalGet(TestCase):
+class ConditionalGet(SimpleTestCase):
 
     def assertFullResponse(self, response, check_last_modified=True, check_etag=True):
         self.assertEqual(response.status_code, 200)

tests/context_processors/tests.py

@@ -1,7 +1,7 @@
 """
 Tests for Django's bundled context processors.
 """
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, TestCase, override_settings
 
 
 @override_settings(
@@ -16,7 +16,7 @@ from django.test import TestCase, override_settings
         },
     }],
 )
-class RequestContextProcessorTests(TestCase):
+class RequestContextProcessorTests(SimpleTestCase):
     """
     Tests for the ``django.template.context_processors.request`` processor.
     """

tests/csrf_tests/tests.py

@@ -10,7 +10,7 @@ from django.middleware.csrf import (
 )
 from django.template import RequestContext, Template
 from django.template.context_processors import csrf
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.views.decorators.csrf import (
     csrf_exempt, ensure_csrf_cookie, requires_csrf_token,
 )
@@ -56,7 +56,7 @@ class TestingHttpRequest(HttpRequest):
         return getattr(self, '_is_secure_override', False)
 
 
-class CsrfViewMiddlewareTest(TestCase):
+class CsrfViewMiddlewareTest(SimpleTestCase):
     # The csrf token is potentially from an untrusted source, so could have
     # characters that need dealing with.
     _csrf_id_cookie = b"<1>\xc2\xa1"

tests/field_deconstruction/tests.py

@@ -1,11 +1,11 @@
 from __future__ import unicode_literals
 
 from django.db import models
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.utils import six
 
 
-class FieldDeconstructionTests(TestCase):
+class FieldDeconstructionTests(SimpleTestCase):
     """
     Tests the deconstruct() method on all core fields.
     """

tests/field_subclassing/tests.py

@@ -4,7 +4,7 @@ import inspect
 
 from django.core import exceptions, serializers
 from django.db import connection
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 
 from .fields import CustomTypedField, Small
 from .models import ChoicesModel, DataModel, MyModel, OtherModel
@@ -123,7 +123,7 @@ class CustomField(TestCase):
             o.full_clean()
 
 
-class TestDbType(TestCase):
+class TestDbType(SimpleTestCase):
 
     def test_db_parameters_respects_db_type(self):
         f = CustomTypedField()

tests/file_uploads/tests.py

@@ -13,7 +13,7 @@ import unittest
 from django.core.files import temp as tempfile
 from django.core.files.uploadedfile import SimpleUploadedFile
 from django.http.multipartparser import MultiPartParser, parse_header
-from django.test import TestCase, client, override_settings
+from django.test import SimpleTestCase, TestCase, client, override_settings
 from django.utils.encoding import force_bytes
 from django.utils.http import urlquote
 from django.utils.six import PY2, BytesIO, StringIO
@@ -509,7 +509,7 @@ class FileUploadTests(TestCase):
 
 
 @override_settings(MEDIA_ROOT=MEDIA_ROOT)
-class DirectoryCreationTests(TestCase):
+class DirectoryCreationTests(SimpleTestCase):
     """
     Tests for error handling during directory creation
     via _save_FIELD_file (ticket #6450)

tests/flatpages_tests/test_models.py

@@ -3,11 +3,11 @@
 from __future__ import unicode_literals
 
 from django.contrib.flatpages.models import FlatPage
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.utils import override_script_prefix
 
 
-class FlatpageModelTests(TestCase):
+class FlatpageModelTests(SimpleTestCase):
 
     def test_get_absolute_url_urlencodes(self):
         pf = FlatPage(title="Café!", url='/café/')

tests/forms_tests/tests/test_error_messages.py

@@ -9,7 +9,7 @@ from django.forms import (
     ModelMultipleChoiceField, MultipleChoiceField, RegexField,
     SplitDateTimeField, TimeField, URLField, ValidationError, utils,
 )
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.safestring import mark_safe
 
@@ -23,7 +23,7 @@ class AssertFormErrorsMixin(object):
             self.assertEqual(e.messages, expected)
 
 
-class FormsErrorMessagesTestCase(TestCase, AssertFormErrorsMixin):
+class FormsErrorMessagesTestCase(SimpleTestCase, AssertFormErrorsMixin):
     def test_charfield(self):
         e = {
             'required': 'REQUIRED',

tests/forms_tests/tests/test_forms.py

@@ -20,7 +20,7 @@ from django.forms import (
 from django.forms.utils import ErrorList
 from django.http import QueryDict
 from django.template import Context, Template
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.utils import str_prefix
 from django.utils import six
 from django.utils.datastructures import MultiValueDict
@@ -41,7 +41,7 @@ class PersonNew(Form):
     birthday = DateField()
 
 
-class FormsTestCase(TestCase):
+class FormsTestCase(SimpleTestCase):
     # A Form is a collection of Fields. It knows how to validate a set of data and it
     # knows how to render itself in a couple of default ways (e.g., an HTML table).
     # You can pass it data in __init__(), as a dictionary.

tests/forms_tests/tests/test_formsets.py

@@ -9,7 +9,7 @@ from django.forms import (
 )
 from django.forms.formsets import BaseFormSet, formset_factory
 from django.forms.utils import ErrorList
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.utils.encoding import force_text
 
 
@@ -57,7 +57,7 @@ class SplitDateTimeForm(Form):
 SplitDateTimeFormSet = formset_factory(SplitDateTimeForm)
 
 
-class FormsFormsetTestCase(TestCase):
+class FormsFormsetTestCase(SimpleTestCase):
 
     def make_choiceformset(self, formset_data=None, formset_class=ChoiceFormSet,
             total_forms=None, initial_forms=0, max_num_forms=0, min_num_forms=0, **kwargs):
@@ -1117,7 +1117,7 @@ class Choice(Form):
 ChoiceFormSet = formset_factory(Choice)
 
 
-class FormsetAsFooTests(TestCase):
+class FormsetAsFooTests(SimpleTestCase):
     def test_as_table(self):
         formset = ChoiceFormSet(data, auto_id=False, prefix='choices')
         self.assertHTMLEqual(formset.as_table(), """<input type="hidden" name="choices-TOTAL_FORMS" value="1" /><input type="hidden" name="choices-INITIAL_FORMS" value="0" /><input type="hidden" name="choices-MIN_NUM_FORMS" value="0" /><input type="hidden" name="choices-MAX_NUM_FORMS" value="0" />
@@ -1145,7 +1145,7 @@ class ArticleForm(Form):
 ArticleFormSet = formset_factory(ArticleForm)
 
 
-class TestIsBoundBehavior(TestCase):
+class TestIsBoundBehavior(SimpleTestCase):
     def test_no_data_raises_validation_error(self):
         with self.assertRaises(ValidationError):
             ArticleFormSet({}).is_valid()
@@ -1200,7 +1200,7 @@ class TestIsBoundBehavior(TestCase):
         self.assertHTMLEqual(empty_forms[0].as_p(), empty_forms[1].as_p())
 
 
-class TestEmptyFormSet(TestCase):
+class TestEmptyFormSet(SimpleTestCase):
     def test_empty_formset_is_valid(self):
         """Test that an empty formset still calls clean()"""
         EmptyFsetWontValidateFormset = formset_factory(FavoriteDrinkForm, extra=0, formset=EmptyFsetWontValidate)

tests/forms_tests/tests/test_media.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from django.forms import CharField, Form, Media, MultiWidget, TextInput
 from django.template import Context, Template
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.utils.encoding import force_text
 
 
@@ -9,7 +9,7 @@ from django.utils.encoding import force_text
     STATIC_URL=None,
     MEDIA_URL='http://media.example.com/media/',
 )
-class FormsMediaTestCase(TestCase):
+class FormsMediaTestCase(SimpleTestCase):
     """Tests for the media handling on widgets and forms"""
 
     def test_construction(self):
@@ -466,7 +466,7 @@ class FormsMediaTestCase(TestCase):
     STATIC_URL='http://media.example.com/static/',
     MEDIA_URL='http://media.example.com/media/',
 )
-class StaticFormsMediaTestCase(TestCase):
+class StaticFormsMediaTestCase(SimpleTestCase):
     """Tests for the media handling on widgets and forms"""
 
     def test_construction(self):

tests/forms_tests/tests/test_utils.py

@@ -5,14 +5,14 @@ import copy
 
 from django.core.exceptions import ValidationError
 from django.forms.utils import ErrorDict, ErrorList, flatatt
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.utils import six
 from django.utils.encoding import force_text, python_2_unicode_compatible
 from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy
 
 
-class FormsUtilsTestCase(TestCase):
+class FormsUtilsTestCase(SimpleTestCase):
     # Tests for forms/utils.py module.
 
     def test_flatatt(self):

tests/forms_tests/tests/test_widgets.py

@@ -18,7 +18,7 @@ from django.forms import (
 from django.forms.widgets import (
     ChoiceFieldRenderer, ChoiceInput, RadioFieldRenderer,
 )
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.utils import six, translation
 from django.utils.dates import MONTHS_AP
 from django.utils.encoding import force_text, python_2_unicode_compatible
@@ -27,7 +27,7 @@ from django.utils.safestring import SafeData, mark_safe
 from ..models import Article
 
 
-class FormsWidgetTests(TestCase):
+class FormsWidgetTests(SimpleTestCase):
     # Each Widget class corresponds to an HTML form widget. A Widget knows how to
     # render itself, given a field name and some data. Widgets don't perform
     # validation.
@@ -1173,7 +1173,7 @@ class NullBooleanSelectLazyForm(Form):
 
 
 @override_settings(USE_L10N=True)
-class FormsI18NWidgetsTests(TestCase):
+class FormsI18NWidgetsTests(SimpleTestCase):
     def setUp(self):
         super(FormsI18NWidgetsTests, self).setUp()
         translation.activate('de-at')
@@ -1261,7 +1261,7 @@ class SelectAndTextWidget(MultiWidget):
     choices = property(_get_choices, _set_choices)
 
 
-class WidgetTests(TestCase):
+class WidgetTests(SimpleTestCase):
     def test_12048(self):
         # See ticket #12048.
         w1 = SelectAndTextWidget(choices=[1, 2, 3])
@@ -1303,7 +1303,7 @@ class FakeFieldFile(object):
         return self.url
 
 
-class ClearableFileInputTests(TestCase):
+class ClearableFileInputTests(SimpleTestCase):
     def test_clear_input_renders(self):
         """
         A ClearableFileInput with is_required False and rendered with
@@ -1436,7 +1436,7 @@ class GetDate(Form):
     mydate = DateField(widget=SelectDateWidget)
 
 
-class SelectDateWidgetTests(TestCase):
+class SelectDateWidgetTests(SimpleTestCase):
 
     # The forms library comes with some extra, higher-level Field and Widget
     def test_selectdate(self):

tests/forms_tests/tests/tests.py

@@ -9,7 +9,7 @@ from django.forms import (
     CharField, FileField, Form, ModelChoiceField, ModelForm,
 )
 from django.forms.models import ModelFormMetaclass
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 from django.utils import six
 
 from ..models import (
@@ -222,7 +222,7 @@ class FormsModelTestCase(TestCase):
         self.assertEqual(obj.def_date, datetime.date(1999, 3, 2))
 
 
-class RelatedModelFormTests(TestCase):
+class RelatedModelFormTests(SimpleTestCase):
     def test_invalid_loading_order(self):
         """
         Test for issue 10405

tests/generic_inline_admin/tests.py

@@ -11,7 +11,9 @@ from django.contrib.contenttypes.forms import generic_inlineformset_factory
 from django.core.urlresolvers import reverse
 from django.forms.formsets import DEFAULT_MAX_NUM
 from django.forms.models import ModelForm
-from django.test import RequestFactory, TestCase, override_settings
+from django.test import (
+    RequestFactory, SimpleTestCase, TestCase, override_settings,
+)
 
 from .admin import MediaInline, MediaPermanentInline, site as admin_site
 from .models import Category, Episode, EpisodePermanent, Media
@@ -313,7 +315,7 @@ class GenericInlineAdminWithUniqueTogetherTest(TestDataMixin, TestCase):
 
 
 @override_settings(ROOT_URLCONF="generic_inline_admin.urls")
-class NoInlineDeletionTest(TestCase):
+class NoInlineDeletionTest(SimpleTestCase):
 
     def test_no_deletion(self):
         inline = MediaPermanentInline(EpisodePermanent, admin_site)
@@ -335,7 +337,7 @@ request.user = MockSuperUser()
 
 
 @override_settings(ROOT_URLCONF="generic_inline_admin.urls")
-class GenericInlineModelAdminTest(TestCase):
+class GenericInlineModelAdminTest(SimpleTestCase):
 
     def setUp(self):
         self.site = AdminSite()

tests/generic_relations/tests.py

@@ -5,7 +5,7 @@ from django.contrib.contenttypes.forms import generic_inlineformset_factory
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import FieldError
 from django.db.models import Q
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 from django.utils import six
 
 from .models import (
@@ -618,7 +618,7 @@ class ProxyRelatedModelTest(TestCase):
         self.assertEqual(base, newrel.bases.get())
 
 
-class TestInitWithNoneArgument(TestCase):
+class TestInitWithNoneArgument(SimpleTestCase):
     def test_none_not_allowed(self):
         # TaggedItem requires a content_type, initializing with None should
         # raise a ValueError.

tests/generic_views/test_base.py

@@ -6,7 +6,7 @@ import unittest
 from django.core.exceptions import ImproperlyConfigured
 from django.core.urlresolvers import resolve
 from django.http import HttpResponse
-from django.test import RequestFactory, TestCase, override_settings
+from django.test import RequestFactory, SimpleTestCase, override_settings
 from django.test.utils import require_jinja2
 from django.views.generic import RedirectView, TemplateView, View
 
@@ -241,7 +241,7 @@ class ViewTest(unittest.TestCase):
 
 
 @override_settings(ROOT_URLCONF='generic_views.urls')
-class TemplateViewTest(TestCase):
+class TemplateViewTest(SimpleTestCase):
 
     rf = RequestFactory()
 
@@ -352,7 +352,7 @@ class TemplateViewTest(TestCase):
 
 
 @override_settings(ROOT_URLCONF='generic_views.urls')
-class RedirectViewTest(TestCase):
+class RedirectViewTest(SimpleTestCase):
 
     rf = RequestFactory()
 

tests/generic_views/test_edit.py

@@ -5,7 +5,9 @@ import warnings
 from django import forms
 from django.core.exceptions import ImproperlyConfigured
 from django.core.urlresolvers import reverse
-from django.test import TestCase, ignore_warnings, override_settings
+from django.test import (
+    SimpleTestCase, TestCase, ignore_warnings, override_settings,
+)
 from django.test.client import RequestFactory
 from django.utils.deprecation import RemovedInDjango20Warning
 from django.views.generic.base import View
@@ -16,7 +18,7 @@ from .models import Artist, Author
 from .test_forms import AuthorForm
 
 
-class FormMixinTests(TestCase):
+class FormMixinTests(SimpleTestCase):
     def test_initial_data(self):
         """ Test instance independence of initial data dict (see #16138) """
         initial_1 = FormMixin().get_initial()
@@ -97,7 +99,7 @@ class BasicFormTests(TestCase):
         self.assertRedirects(res, '/list/authors/')
 
 
-class ModelFormMixinTests(TestCase):
+class ModelFormMixinTests(SimpleTestCase):
     def test_get_form(self):
         form_class = views.AuthorGetQuerySetFormView().get_form_class()
         self.assertEqual(form_class._meta.model, Author)

tests/gis_tests/maps/tests.py

@@ -4,7 +4,7 @@ from __future__ import unicode_literals
 from unittest import skipUnless
 
 from django.contrib.gis.geos import HAS_GEOS
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.utils import modify_settings, override_settings
 from django.utils.encoding import force_text
 
@@ -15,7 +15,7 @@ GOOGLE_MAPS_API_KEY = 'XXXX'
 @modify_settings(
     INSTALLED_APPS={'append': 'django.contrib.gis'},
 )
-class GoogleMapsTest(TestCase):
+class GoogleMapsTest(SimpleTestCase):
 
     @override_settings(GOOGLE_MAPS_API_KEY=GOOGLE_MAPS_API_KEY)
     def test_google_map_scripts(self):

tests/handlers/tests.py

@@ -6,13 +6,13 @@ from django.core.handlers.wsgi import WSGIHandler, WSGIRequest, get_script_name
 from django.core.signals import request_finished, request_started
 from django.db import close_old_connections, connection
 from django.test import (
-    RequestFactory, TestCase, TransactionTestCase, override_settings,
+    RequestFactory, SimpleTestCase, TransactionTestCase, override_settings,
 )
 from django.utils import six
 from django.utils.encoding import force_str
 
 
-class HandlerTests(TestCase):
+class HandlerTests(SimpleTestCase):
 
     def setUp(self):
         request_started.disconnect(close_old_connections)
@@ -137,7 +137,7 @@ class TransactionsPerRequestTests(TransactionTestCase):
 
 
 @override_settings(ROOT_URLCONF='handlers.urls')
-class SignalsTests(TestCase):
+class SignalsTests(SimpleTestCase):
 
     def setUp(self):
         self.signals = []
@@ -170,7 +170,7 @@ class SignalsTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='handlers.urls')
-class HandlerSuspiciousOpsTest(TestCase):
+class HandlerSuspiciousOpsTest(SimpleTestCase):
 
     def test_suspiciousop_in_view_returns_400(self):
         response = self.client.get('/suspicious/')
@@ -178,7 +178,7 @@ class HandlerSuspiciousOpsTest(TestCase):
 
 
 @override_settings(ROOT_URLCONF='handlers.urls')
-class HandlerNotFoundTest(TestCase):
+class HandlerNotFoundTest(SimpleTestCase):
 
     def test_invalid_urls(self):
         response = self.client.get('~%A9helloworld')
@@ -202,7 +202,7 @@ class HandlerNotFoundTest(TestCase):
         self.assertIsInstance(environ['PATH_INFO'], six.text_type)
 
 
-class ScriptNameTests(TestCase):
+class ScriptNameTests(SimpleTestCase):
     def test_get_script_name(self):
         # Regression test for #23173
         # Test first without PATH_INFO

tests/http_utils/tests.py

@@ -5,7 +5,7 @@ import io
 
 from django.http import HttpRequest, HttpResponse, StreamingHttpResponse
 from django.http.utils import conditional_content_removal
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 
 # based on Python 3.3's gzip.compress
@@ -19,7 +19,7 @@ def gzip_compress(data):
     return buf.getvalue()
 
 
-class HttpUtilTests(TestCase):
+class HttpUtilTests(SimpleTestCase):
 
     def test_conditional_content_removal(self):
         """

tests/httpwrappers/tests.py

@@ -17,7 +17,7 @@ from django.http import (
     HttpResponseRedirect, JsonResponse, QueryDict, SimpleCookie,
     StreamingHttpResponse, parse_cookie,
 )
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.utils import six
 from django.utils._os import upath
 from django.utils.encoding import force_text, smart_str
@@ -425,7 +425,7 @@ class HttpResponseTests(unittest.TestCase):
                               HttpResponsePermanentRedirect, url)
 
 
-class HttpResponseSubclassesTests(TestCase):
+class HttpResponseSubclassesTests(SimpleTestCase):
     def test_redirect(self):
         response = HttpResponseRedirect('/redirected/')
         self.assertEqual(response.status_code, 302)
@@ -460,7 +460,7 @@ class HttpResponseSubclassesTests(TestCase):
         self.assertContains(response, 'Only the GET method is allowed', status_code=405)
 
 
-class JsonResponseTests(TestCase):
+class JsonResponseTests(SimpleTestCase):
     def test_json_response_non_ascii(self):
         data = {'key': 'łóżko'}
         response = JsonResponse(data)
@@ -489,7 +489,7 @@ class JsonResponseTests(TestCase):
         self.assertEqual(json.loads(response.content.decode()), {'foo': 'bar'})
 
 
-class StreamingHttpResponseTests(TestCase):
+class StreamingHttpResponseTests(SimpleTestCase):
     def test_streaming_response(self):
         r = StreamingHttpResponse(iter(['hello', 'world']))
 
@@ -554,7 +554,7 @@ class StreamingHttpResponseTests(TestCase):
         self.assertEqual(r.getvalue(), b'helloworld')
 
 
-class FileCloseTests(TestCase):
+class FileCloseTests(SimpleTestCase):
 
     def setUp(self):
         # Disable the request_finished signal during this test

tests/i18n/patterns/tests.py

@@ -7,7 +7,7 @@ from django.core.urlresolvers import clear_url_caches, reverse, translate_url
 from django.http import HttpResponsePermanentRedirect
 from django.middleware.locale import LocaleMiddleware
 from django.template import Context, Template
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.test.utils import override_script_prefix
 from django.utils import translation
 from django.utils._os import upath
@@ -43,7 +43,7 @@ class PermanentRedirectLocaleMiddleWare(LocaleMiddleware):
         },
     }],
 )
-class URLTestCaseBase(TestCase):
+class URLTestCaseBase(SimpleTestCase):
     """
     TestCase base-class for the URL tests.
     """

tests/i18n/tests.py

@@ -14,7 +14,9 @@ from unittest import skipUnless
 from django import forms
 from django.conf import settings
 from django.template import Context, Template, TemplateSyntaxError
-from django.test import RequestFactory, TestCase, override_settings
+from django.test import (
+    RequestFactory, SimpleTestCase, TestCase, override_settings,
+)
 from django.utils import six, translation
 from django.utils._os import upath
 from django.utils.formats import (
@@ -54,7 +56,7 @@ def patch_formats(lang, **settings):
         reset_format_cache()
 
 
-class TranslationTests(TestCase):
+class TranslationTests(SimpleTestCase):
 
     @translation.override('fr')
     def test_plural(self):
@@ -427,7 +429,7 @@ class TranslationTests(TestCase):
             self.assertEqual(rendered, 'My other name is James.')
 
 
-class TranslationThreadSafetyTests(TestCase):
+class TranslationThreadSafetyTests(SimpleTestCase):
 
     def setUp(self):
         self._old_language = get_language()
@@ -459,7 +461,7 @@ class TranslationThreadSafetyTests(TestCase):
 
 
 @override_settings(USE_L10N=True)
-class FormattingTests(TestCase):
+class FormattingTests(SimpleTestCase):
 
     def setUp(self):
         super(FormattingTests, self).setUp()
@@ -906,7 +908,7 @@ class FormattingTests(TestCase):
             )
 
 
-class MiscTests(TestCase):
+class MiscTests(SimpleTestCase):
 
     def setUp(self):
         super(MiscTests, self).setUp()
@@ -1136,7 +1138,7 @@ class MiscTests(TestCase):
             self.assertNotEqual('pt-br', g(r))
 
 
-class ResolutionOrderI18NTests(TestCase):
+class ResolutionOrderI18NTests(SimpleTestCase):
 
     def setUp(self):
         super(ResolutionOrderI18NTests, self).setUp()
@@ -1205,7 +1207,7 @@ class TestModels(TestCase):
         c.save()
 
 
-class TestLanguageInfo(TestCase):
+class TestLanguageInfo(SimpleTestCase):
     def test_localized_language_info(self):
         li = get_language_info('de')
         self.assertEqual(li['code'], 'de')
@@ -1237,7 +1239,7 @@ class TestLanguageInfo(TestCase):
         self.assertEqual(li['code'], 'zh-hans')
 
 
-class MultipleLocaleActivationTests(TestCase):
+class MultipleLocaleActivationTests(SimpleTestCase):
     """
     Tests for template rendering behavior when multiple locales are activated
     during the lifetime of the same process.
@@ -1409,7 +1411,7 @@ class LocaleMiddlewareTests(TestCase):
     ],
     ROOT_URLCONF='i18n.urls'
 )
-class CountrySpecificLanguageTests(TestCase):
+class CountrySpecificLanguageTests(SimpleTestCase):
 
     def setUp(self):
         super(CountrySpecificLanguageTests, self).setUp()
@@ -1459,7 +1461,7 @@ class CountrySpecificLanguageTests(TestCase):
         self.assertEqual('pt-br', lang)
 
 
-class TranslationFilesMissing(TestCase):
+class TranslationFilesMissing(SimpleTestCase):
 
     def setUp(self):
         super(TranslationFilesMissing, self).setUp()

tests/invalid_models_tests/base.py

@@ -2,10 +2,10 @@
 from __future__ import unicode_literals
 
 from django.apps import apps
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 
-class IsolatedModelsTestCase(TestCase):
+class IsolatedModelsTestCase(SimpleTestCase):
 
     def setUp(self):
         # The unmanaged models need to be removed after the test in order to

tests/invalid_models_tests/test_ordinary_fields.py

@@ -5,6 +5,7 @@ import unittest
 
 from django.core.checks import Error, Warning as DjangoWarning
 from django.db import connection, models
+from django.test import TestCase
 from django.test.utils import override_settings
 from django.utils.timezone import now
 
@@ -64,7 +65,7 @@ class BooleanFieldTests(IsolatedModelsTestCase):
         self.assertEqual(errors, expected)
 
 
-class CharFieldTests(IsolatedModelsTestCase):
+class CharFieldTests(IsolatedModelsTestCase, TestCase):
 
     def test_valid_field(self):
         class Model(models.Model):
@@ -215,7 +216,7 @@ class CharFieldTests(IsolatedModelsTestCase):
         self.assertEqual(errors, expected)
 
 
-class DateFieldTests(IsolatedModelsTestCase):
+class DateFieldTests(IsolatedModelsTestCase, TestCase):
 
     def test_auto_now_and_auto_now_add_raise_error(self):
         class Model(models.Model):
@@ -281,7 +282,7 @@ class DateFieldTests(IsolatedModelsTestCase):
         self.test_fix_default_value()
 
 
-class DateTimeFieldTests(IsolatedModelsTestCase):
+class DateTimeFieldTests(IsolatedModelsTestCase, TestCase):
 
     def test_fix_default_value(self):
         class Model(models.Model):
@@ -548,7 +549,7 @@ class IntegerFieldTests(IsolatedModelsTestCase):
         self.assertEqual(errors, expected)
 
 
-class TimeFieldTests(IsolatedModelsTestCase):
+class TimeFieldTests(IsolatedModelsTestCase, TestCase):
 
     def test_fix_default_value(self):
         class Model(models.Model):

tests/logging_tests/tests.py

@@ -8,7 +8,7 @@ from admin_scripts.tests import AdminScriptTestCase
 
 from django.core import mail
 from django.core.files.temp import NamedTemporaryFile
-from django.test import RequestFactory, TestCase, override_settings
+from django.test import RequestFactory, SimpleTestCase, override_settings
 from django.test.utils import LoggingCaptureMixin, patch_logger
 from django.utils.deprecation import RemovedInNextVersionWarning
 from django.utils.encoding import force_text
@@ -39,7 +39,7 @@ OLD_LOGGING = {
 }
 
 
-class LoggingFiltersTest(TestCase):
+class LoggingFiltersTest(SimpleTestCase):
     def test_require_debug_false_filter(self):
         """
         Test the RequireDebugFalse filter class.
@@ -65,7 +65,7 @@ class LoggingFiltersTest(TestCase):
             self.assertEqual(filter_.filter("record is not used"), False)
 
 
-class DefaultLoggingTest(LoggingCaptureMixin, TestCase):
+class DefaultLoggingTest(LoggingCaptureMixin, SimpleTestCase):
 
     def test_django_logger(self):
         """
@@ -79,7 +79,7 @@ class DefaultLoggingTest(LoggingCaptureMixin, TestCase):
             self.assertEqual(self.logger_output.getvalue(), 'Hey, this is an error.\n')
 
 
-class WarningLoggerTests(TestCase):
+class WarningLoggerTests(SimpleTestCase):
     """
     Tests that warnings output for RemovedInDjangoXXWarning (XX being the next
     Django version) is enabled and captured to the logging system
@@ -137,7 +137,7 @@ class WarningLoggerTests(TestCase):
                 warnings.warn('Foo Deprecated', RemovedInNextVersionWarning)
 
 
-class CallbackFilterTest(TestCase):
+class CallbackFilterTest(SimpleTestCase):
     def test_sense(self):
         f_false = CallbackFilter(lambda r: False)
         f_true = CallbackFilter(lambda r: True)
@@ -158,7 +158,7 @@ class CallbackFilterTest(TestCase):
         self.assertEqual(collector, ["a record"])
 
 
-class AdminEmailHandlerTest(TestCase):
+class AdminEmailHandlerTest(SimpleTestCase):
     logger = logging.getLogger('django')
 
     def get_admin_email_handler(self, logger):
@@ -385,7 +385,7 @@ def dictConfig(config):
 dictConfig.called = False
 
 
-class SetupConfigureLogging(TestCase):
+class SetupConfigureLogging(SimpleTestCase):
     """
     Test that calling django.setup() initializes the logging configuration.
     """
@@ -398,7 +398,7 @@ class SetupConfigureLogging(TestCase):
 
 
 @override_settings(DEBUG=True, ROOT_URLCONF='logging_tests.urls')
-class SecurityLoggerTest(TestCase):
+class SecurityLoggerTest(SimpleTestCase):
 
     def test_suspicious_operation_creates_log_message(self):
         with patch_logger('django.security.SuspiciousOperation', 'error') as calls:

tests/messages_tests/test_api.py

@@ -1,5 +1,5 @@
 from django.contrib import messages
-from django.test import RequestFactory, TestCase
+from django.test import RequestFactory, SimpleTestCase
 
 
 class DummyStorage(object):
@@ -14,7 +14,7 @@ class DummyStorage(object):
         self.store.append(message)
 
 
-class ApiTest(TestCase):
+class ApiTest(SimpleTestCase):
     def setUp(self):
         self.rf = RequestFactory()
         self.request = self.rf.request()

tests/messages_tests/test_cookie.py

@@ -5,7 +5,7 @@ from django.contrib.messages.storage.base import Message
 from django.contrib.messages.storage.cookie import (
     CookieStorage, MessageDecoder, MessageEncoder,
 )
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.utils.safestring import SafeData, mark_safe
 
 from .base import BaseTests
@@ -43,7 +43,7 @@ def stored_cookie_messages_count(storage, response):
 
 
 @override_settings(SESSION_COOKIE_DOMAIN='.example.com', SESSION_COOKIE_SECURE=True, SESSION_COOKIE_HTTPONLY=True)
-class CookieTest(BaseTests, TestCase):
+class CookieTest(BaseTests, SimpleTestCase):
     storage_class = CookieStorage
 
     def stored_messages_count(self, storage, response):

tests/messages_tests/test_fallback.py

@@ -2,14 +2,14 @@ from django.contrib.messages import constants
 from django.contrib.messages.storage.fallback import (
     CookieStorage, FallbackStorage,
 )
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 from .base import BaseTests
 from .test_cookie import set_cookie_data, stored_cookie_messages_count
 from .test_session import set_session_data, stored_session_messages_count
 
 
-class FallbackTest(BaseTests, TestCase):
+class FallbackTest(BaseTests, SimpleTestCase):
     storage_class = FallbackStorage
 
     def get_request(self):

tests/messages_tests/test_mixins.py

@@ -1,11 +1,11 @@
 from django.core.urlresolvers import reverse
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 
 from .urls import ContactFormViewWithMsg
 
 
 @override_settings(ROOT_URLCONF='messages_tests.urls')
-class SuccessMessageMixinTests(TestCase):
+class SuccessMessageMixinTests(SimpleTestCase):
 
     def test_set_messages_success(self):
         author = {'name': 'John Doe',

tests/middleware/test_security.py

@@ -1,9 +1,9 @@
 from django.http import HttpResponse
-from django.test import RequestFactory, TestCase
+from django.test import RequestFactory, SimpleTestCase
 from django.test.utils import override_settings
 
 
-class SecurityMiddlewareTest(TestCase):
+class SecurityMiddlewareTest(SimpleTestCase):
     @property
     def middleware(self):
         from django.middleware.security import SecurityMiddleware

tests/middleware/tests.py

@@ -19,7 +19,7 @@ from django.middleware.common import (
 )
 from django.middleware.gzip import GZipMiddleware
 from django.middleware.http import ConditionalGetMiddleware
-from django.test import RequestFactory, TestCase, override_settings
+from django.test import RequestFactory, SimpleTestCase, override_settings
 from django.test.utils import patch_logger
 from django.utils import six
 from django.utils.encoding import force_str
@@ -28,7 +28,7 @@ from django.utils.six.moves.urllib.parse import quote
 
 
 @override_settings(ROOT_URLCONF='middleware.urls')
-class CommonMiddlewareTest(TestCase):
+class CommonMiddlewareTest(SimpleTestCase):
 
     rf = RequestFactory()
 
@@ -289,7 +289,7 @@ class CommonMiddlewareTest(TestCase):
     IGNORABLE_404_URLS=[re.compile(r'foo')],
     MANAGERS=['PHB@dilbert.com'],
 )
-class BrokenLinkEmailsMiddlewareTest(TestCase):
+class BrokenLinkEmailsMiddlewareTest(SimpleTestCase):
 
     rf = RequestFactory()
 
@@ -353,7 +353,7 @@ class BrokenLinkEmailsMiddlewareTest(TestCase):
 
 
 @override_settings(ROOT_URLCONF='middleware.cond_get_urls')
-class ConditionalGetMiddlewareTest(TestCase):
+class ConditionalGetMiddlewareTest(SimpleTestCase):
 
     def setUp(self):
         self.req = RequestFactory().get('/')
@@ -492,7 +492,7 @@ class ConditionalGetMiddlewareTest(TestCase):
         self.assertEqual(self.resp.status_code, 400)
 
 
-class XFrameOptionsMiddlewareTest(TestCase):
+class XFrameOptionsMiddlewareTest(SimpleTestCase):
     """
     Tests for the X-Frame-Options clickjacking prevention middleware.
     """
@@ -610,7 +610,7 @@ class XFrameOptionsMiddlewareTest(TestCase):
             self.assertEqual(r['X-Frame-Options'], 'DENY')
 
 
-class GZipMiddlewareTest(TestCase):
+class GZipMiddlewareTest(SimpleTestCase):
     """
     Tests the GZip middleware.
     """
@@ -717,7 +717,7 @@ class GZipMiddlewareTest(TestCase):
 
 
 @override_settings(USE_ETAGS=True)
-class ETagGZipMiddlewareTest(TestCase):
+class ETagGZipMiddlewareTest(SimpleTestCase):
     """
     Tests if the ETag middleware behaves correctly with GZip middleware.
     """

tests/middleware_exceptions/tests.py

@@ -6,7 +6,7 @@ from django.core.signals import got_request_exception
 from django.http import HttpResponse
 from django.template import engines
 from django.template.response import TemplateResponse
-from django.test import RequestFactory, TestCase, override_settings
+from django.test import RequestFactory, SimpleTestCase, override_settings
 from django.test.utils import patch_logger
 
 
@@ -116,7 +116,7 @@ class NoResponseMiddleware(TestMiddleware):
 
 
 @override_settings(ROOT_URLCONF='middleware_exceptions.urls')
-class BaseMiddlewareExceptionTest(TestCase):
+class BaseMiddlewareExceptionTest(SimpleTestCase):
 
     def setUp(self):
         self.exceptions = []
@@ -827,7 +827,7 @@ _missing = object()
 
 
 @override_settings(ROOT_URLCONF='middleware_exceptions.urls')
-class RootUrlconfTests(TestCase):
+class RootUrlconfTests(SimpleTestCase):
 
     @override_settings(ROOT_URLCONF=None)
     def test_missing_root_urlconf(self):
@@ -859,7 +859,7 @@ class MyMiddlewareWithExceptionMessage(object):
     DEBUG=True,
     ROOT_URLCONF='middleware_exceptions.urls',
 )
-class MiddlewareNotUsedTests(TestCase):
+class MiddlewareNotUsedTests(SimpleTestCase):
 
     rf = RequestFactory()
 

tests/migrations/test_graph.py

@@ -4,11 +4,11 @@ from django.db.migrations.exceptions import (
     CircularDependencyError, NodeNotFoundError,
 )
 from django.db.migrations.graph import RECURSION_DEPTH_WARNING, MigrationGraph
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.utils.encoding import force_text
 
 
-class GraphTests(TestCase):
+class GraphTests(SimpleTestCase):
     """
     Tests the digraph structure.
     """

tests/migrations/test_optimizer.py

@@ -2,12 +2,12 @@
 
 from django.db import migrations, models
 from django.db.migrations.optimizer import MigrationOptimizer
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 from .models import CustomModelBase, EmptyManager
 
 
-class OptimizerTests(TestCase):
+class OptimizerTests(SimpleTestCase):
     """
     Tests the migration autodetector.
     """

tests/migrations/test_state.py

@@ -7,7 +7,7 @@ from django.db.migrations.operations import (
 from django.db.migrations.state import (
     ModelState, ProjectState, get_related_models_recursive,
 )
-from django.test import SimpleTestCase, TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.utils import six
 
 from .models import (
@@ -16,7 +16,7 @@ from .models import (
 )
 
 
-class StateTests(TestCase):
+class StateTests(SimpleTestCase):
     """
     Tests state construction, rendering and modification by operations.
     """
@@ -750,7 +750,7 @@ class StateTests(TestCase):
         self.assertEqual(list(choices_field.choices), choices)
 
 
-class ModelStateTests(TestCase):
+class ModelStateTests(SimpleTestCase):
     def test_custom_model_base(self):
         state = ModelState.from_model(ModelWithCustomBase)
         self.assertEqual(state.bases, (models.Model,))

tests/migrations/test_writer.py

@@ -17,7 +17,7 @@ from django.db import migrations, models
 from django.db.migrations.writer import (
     MigrationWriter, OperationWriter, SettingsReference,
 )
-from django.test import SimpleTestCase, TestCase, ignore_warnings
+from django.test import SimpleTestCase, ignore_warnings
 from django.utils import datetime_safe, six
 from django.utils._os import upath
 from django.utils.deconstruct import deconstructible
@@ -152,7 +152,7 @@ class OperationWriterTests(SimpleTestCase):
         )
 
 
-class WriterTests(TestCase):
+class WriterTests(SimpleTestCase):
     """
     Tests the migration writer (makes migration files from Migration instances)
     """

tests/model_fields/test_durationfield.py

@@ -4,7 +4,7 @@ import json
 from django import forms
 from django.core import exceptions, serializers
 from django.db import models
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 
 from .models import DurationModel, NullDurationModel
 
@@ -46,7 +46,7 @@ class TestQuerying(TestCase):
         )
 
 
-class TestSerialization(TestCase):
+class TestSerialization(SimpleTestCase):
     test_data = '[{"fields": {"field": "1 01:00:00"}, "model": "model_fields.durationmodel", "pk": null}]'
 
     def test_dumping(self):
@@ -59,7 +59,7 @@ class TestSerialization(TestCase):
         self.assertEqual(instance.field, datetime.timedelta(days=1, hours=1))
 
 
-class TestValidation(TestCase):
+class TestValidation(SimpleTestCase):
 
     def test_invalid_string(self):
         field = models.DurationField()
@@ -73,7 +73,7 @@ class TestValidation(TestCase):
         )
 
 
-class TestFormField(TestCase):
+class TestFormField(SimpleTestCase):
     # Tests for forms.DurationField are in the forms_tests app.
 
     def test_formfield(self):

tests/model_fields/test_field_flags.py

@@ -72,7 +72,7 @@ FLAG_PROPERTIES_FOR_RELATIONS = (
 )
 
 
-class FieldFlagsTests(test.TestCase):
+class FieldFlagsTests(test.SimpleTestCase):
     @classmethod
     def setUpClass(cls):
         super(FieldFlagsTests, cls).setUpClass()

tests/model_fields/test_uuid.py

@@ -3,7 +3,7 @@ import uuid
 
 from django.core import exceptions, serializers
 from django.db import models
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 
 from .models import (
     NullableUUIDModel, PrimaryKeyUUIDModel, RelatedToUUIDModel, UUIDGrandchild,
@@ -47,7 +47,7 @@ class TestSaveLoad(TestCase):
             UUIDModel.objects.create, field='not-a-uuid')
 
 
-class TestMigrations(TestCase):
+class TestMigrations(SimpleTestCase):
 
     def test_deconstruct(self):
         field = models.UUIDField()
@@ -76,7 +76,7 @@ class TestQuerying(TestCase):
         )
 
 
-class TestSerialization(TestCase):
+class TestSerialization(SimpleTestCase):
     test_data = '[{"fields": {"field": "550e8400-e29b-41d4-a716-446655440000"}, "model": "model_fields.uuidmodel", "pk": null}]'
 
     def test_dumping(self):
@@ -89,7 +89,7 @@ class TestSerialization(TestCase):
         self.assertEqual(instance.field, uuid.UUID('550e8400-e29b-41d4-a716-446655440000'))
 
 
-class TestValidation(TestCase):
+class TestValidation(SimpleTestCase):
     def test_invalid_uuid(self):
         field = models.UUIDField()
         with self.assertRaises(exceptions.ValidationError) as cm:

tests/model_fields/tests.py

@@ -223,7 +223,7 @@ class ForeignKeyTests(test.TestCase):
         )
 
 
-class ManyToManyFieldTests(test.TestCase):
+class ManyToManyFieldTests(test.SimpleTestCase):
     def test_abstract_model_pending_operations(self):
         """
         Many-to-many fields declared on abstract models should not add lazy relations to
@@ -425,7 +425,7 @@ class BooleanFieldTests(test.TestCase):
         nb.save()           # no error
 
 
-class ChoicesTests(test.TestCase):
+class ChoicesTests(test.SimpleTestCase):
     def test_choices_and_field_display(self):
         """
         Check that get_choices and get_flatchoices interact with
@@ -466,7 +466,7 @@ class SlugFieldTests(test.TestCase):
         self.assertEqual(bs.s, 'slug' * 50)
 
 
-class ValidationTest(test.TestCase):
+class ValidationTest(test.SimpleTestCase):
     def test_charfield_raises_error_on_empty_string(self):
         f = models.CharField()
         self.assertRaises(ValidationError, f.clean, "", None)
@@ -738,7 +738,7 @@ class GenericIPAddressFieldTests(test.TestCase):
         self.assertEqual(loaded.ip, instance.ip)
 
 
-class PromiseTest(test.TestCase):
+class PromiseTest(test.SimpleTestCase):
     def test_AutoField(self):
         lazy_func = lazy(lambda: 1, int)
         self.assertIsInstance(

tests/model_forms/tests.py

@@ -18,7 +18,7 @@ from django.forms.models import (
     modelform_factory,
 )
 from django.template import Context, Template
-from django.test import TestCase, skipUnlessDBFeature
+from django.test import SimpleTestCase, TestCase, skipUnlessDBFeature
 from django.utils import six
 from django.utils._os import upath
 
@@ -551,7 +551,7 @@ class FieldOverridesByFormMetaForm(forms.ModelForm):
         }
 
 
-class TestFieldOverridesByFormMeta(TestCase):
+class TestFieldOverridesByFormMeta(SimpleTestCase):
     def test_widget_overrides(self):
         form = FieldOverridesByFormMetaForm()
         self.assertHTMLEqual(
@@ -633,7 +633,7 @@ class IncompleteCategoryFormWithExclude(forms.ModelForm):
         model = Category
 
 
-class ValidationTest(TestCase):
+class ValidationTest(SimpleTestCase):
     def test_validates_with_replaced_field_not_specified(self):
         form = IncompleteCategoryFormWithFields(data={'name': 'some name', 'slug': 'some-slug'})
         assert form.is_valid()
@@ -2117,7 +2117,7 @@ class FileAndImageFieldTests(TestCase):
         instance.delete()
 
 
-class ModelOtherFieldTests(TestCase):
+class ModelOtherFieldTests(SimpleTestCase):
     def test_big_integer_field(self):
         bif = BigIntForm({'biggie': '-9223372036854775808'})
         self.assertTrue(bif.is_valid())
@@ -2326,7 +2326,7 @@ class OtherModelFormTests(TestCase):
         self.assertFalse(bound_form.has_changed())
 
 
-class ModelFormCustomErrorTests(TestCase):
+class ModelFormCustomErrorTests(SimpleTestCase):
     def test_custom_error_messages(self):
         data = {'name1': '@#$!!**@#$', 'name2': '@#$!!**@#$'}
         errors = CustomErrorMessageForm(data).errors
@@ -2402,7 +2402,7 @@ class CustomCleanTests(TestCase):
         self.assertEqual(category.name, 'TEST')
 
 
-class ModelFormInheritanceTests(TestCase):
+class ModelFormInheritanceTests(SimpleTestCase):
     def test_form_subclass_inheritance(self):
         class Form(forms.Form):
             age = forms.IntegerField()
@@ -2513,7 +2513,7 @@ class LimitChoicesToTest(TestCase):
         self.assertEqual(f.fields['custom'].queryset, 42)
 
 
-class FormFieldCallbackTests(TestCase):
+class FormFieldCallbackTests(SimpleTestCase):
 
     def test_baseform_with_widgets_in_meta(self):
         """Regression for #13095: Using base forms with widgets defined in Meta should not raise errors."""
@@ -2631,7 +2631,7 @@ class CustomMetaclassForm(six.with_metaclass(CustomMetaclass, forms.ModelForm)):
     pass
 
 
-class CustomMetaclassTestCase(TestCase):
+class CustomMetaclassTestCase(SimpleTestCase):
     def test_modelform_factory_metaclass(self):
         new_cls = modelform_factory(Person, fields="__all__", form=CustomMetaclassForm)
         self.assertEqual(new_cls.base_fields, {})

tests/model_meta/test_legacy.py

@@ -10,7 +10,7 @@ from .models import BasePerson, Person
 from .results import TEST_RESULTS
 
 
-class OptionsBaseTests(test.TestCase):
+class OptionsBaseTests(test.SimpleTestCase):
 
     def _map_related_query_names(self, res):
         return tuple((o.field.related_query_name(), m) for o, m in res)

tests/model_meta/tests.py

@@ -5,7 +5,7 @@ from django.contrib.contenttypes.fields import (
 from django.core.exceptions import FieldDoesNotExist
 from django.db.models.fields import CharField, Field, related
 from django.db.models.options import EMPTY_RELATION_TREE, IMMUTABLE_WARNING
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 from .models import (
     AbstractPerson, BasePerson, Child, CommonAncestor, FirstParent, Person,
@@ -14,7 +14,7 @@ from .models import (
 from .results import TEST_RESULTS
 
 
-class OptionsBaseTests(TestCase):
+class OptionsBaseTests(SimpleTestCase):
 
     def _map_related_query_names(self, res):
         return tuple((o.name, m) for o, m in res)
@@ -205,7 +205,7 @@ class GetFieldByNameTests(OptionsBaseTests):
             opts.apps.models_ready = True
 
 
-class RelationTreeTests(TestCase):
+class RelationTreeTests(SimpleTestCase):
     all_models = (Relation, AbstractPerson, BasePerson, Person, ProxyPerson, Relating)
 
     def setUp(self):
@@ -260,7 +260,7 @@ class RelationTreeTests(TestCase):
         self.assertEqual([field.related_query_name() for field in AbstractPerson._meta._relation_tree], [])
 
 
-class ParentListTests(TestCase):
+class ParentListTests(SimpleTestCase):
     def test_get_parent_list(self):
         self.assertEqual(CommonAncestor._meta.get_parent_list(), [])
         self.assertEqual(FirstParent._meta.get_parent_list(), [CommonAncestor])

tests/model_permalink/tests.py

@@ -1,10 +1,10 @@
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 
 from .models import Guitarist
 
 
 @override_settings(ROOT_URLCONF='model_permalink.urls')
-class PermalinkTests(TestCase):
+class PermalinkTests(SimpleTestCase):
 
     def test_permalink(self):
         g = Guitarist(name='Adrien Moignard', slug='adrienmoignard')

tests/model_validation/tests.py

@@ -1,7 +1,7 @@
 from django.core import management
 from django.core.checks import Error, run_checks
 from django.db.models.signals import post_init
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.utils import override_settings
 from django.utils import six
 
@@ -19,7 +19,7 @@ def on_post_init(**kwargs):
     INSTALLED_APPS=['django.contrib.auth', 'django.contrib.contenttypes'],
     SILENCED_SYSTEM_CHECKS=['fields.W342'],  # ForeignKey(unique=True)
 )
-class ModelValidationTest(TestCase):
+class ModelValidationTest(SimpleTestCase):
     def test_models_validate(self):
         # All our models should validate properly
         # Validation Tests:

tests/modeladmin/tests.py

@@ -12,7 +12,7 @@ from django.contrib.admin.widgets import AdminDateWidget, AdminRadioSelect
 from django.core.checks import Error
 from django.forms.models import BaseModelFormSet
 from django.forms.widgets import Select
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 from django.utils import six
 
 from .models import (
@@ -536,7 +536,7 @@ class ModelAdminTests(TestCase):
             ['extra', 'transport', 'id', 'DELETE', 'main_band'])
 
 
-class CheckTestCase(TestCase):
+class CheckTestCase(SimpleTestCase):
 
     def assertIsInvalid(self, model_admin, model, msg,
             id=None, hint=None, invalid_obj=None):
@@ -1526,7 +1526,7 @@ class ListDisplayEditableTests(CheckTestCase):
         self.assertIsValid(ProductAdmin, ValidationTestModel)
 
 
-class ModelAdminPermissionTests(TestCase):
+class ModelAdminPermissionTests(SimpleTestCase):
 
     class MockUser(object):
         def has_module_perms(self, app_label):

tests/multiple_database/tests.py

@@ -11,7 +11,7 @@ from django.core import management
 from django.db import DEFAULT_DB_ALIAS, connections, router, transaction
 from django.db.models import signals
 from django.db.utils import ConnectionRouter
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, TestCase, override_settings
 from django.utils.encoding import force_text
 from django.utils.six import StringIO
 
@@ -862,7 +862,7 @@ class QueryTestCase(TestCase):
                                   extra_arg=True)
 
 
-class ConnectionRouterTestCase(TestCase):
+class ConnectionRouterTestCase(SimpleTestCase):
     @override_settings(DATABASE_ROUTERS=[
         'multiple_database.tests.TestRouter',
         'multiple_database.tests.WriteRouter'])

tests/no_models/tests.py

@@ -1,8 +1,8 @@
 from django.apps import apps
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 
-class NoModelTests(TestCase):
+class NoModelTests(SimpleTestCase):
 
     def test_no_models(self):
         """Test that it's possible to load an app with no models.py file."""

tests/resolve_url/tests.py

@@ -3,7 +3,7 @@ from __future__ import unicode_literals
 from django.contrib.auth.views import logout
 from django.core.urlresolvers import NoReverseMatch, reverse_lazy
 from django.shortcuts import resolve_url
-from django.test import TestCase, ignore_warnings, override_settings
+from django.test import SimpleTestCase, ignore_warnings, override_settings
 from django.utils import six
 from django.utils.deprecation import RemovedInDjango20Warning
 
@@ -11,7 +11,7 @@ from .models import UnimportantThing
 
 
 @override_settings(ROOT_URLCONF='resolve_url.urls')
-class ResolveUrlTests(TestCase):
+class ResolveUrlTests(SimpleTestCase):
     """
     Tests for the ``resolve_url`` function.
     """

tests/select_related/tests.py

@@ -1,7 +1,7 @@
 from __future__ import unicode_literals
 
 from django.core.exceptions import FieldError
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 
 from .models import (
     Bookmark, Domain, Family, Genus, HybridSpecies, Kingdom, Klass, Order,
@@ -164,7 +164,7 @@ class SelectRelatedTests(TestCase):
             self.assertEqual(obj.parent_2, parent_2)
 
 
-class SelectRelatedValidationTests(TestCase):
+class SelectRelatedValidationTests(SimpleTestCase):
     """
     select_related() should thrown an error on fields that do not exist and
     non-relational fields.

tests/select_related_onetoone/tests.py

@@ -3,7 +3,7 @@ from __future__ import unicode_literals
 import unittest
 
 from django.core.exceptions import FieldError
-from django.test import TestCase
+from django.test import SimpleTestCase, TestCase
 
 from .models import (
     AdvancedUserStat, Child1, Child2, Child3, Child4, Image, Parent1, Parent2,
@@ -213,7 +213,7 @@ class ReverseSelectRelatedTestCase(TestCase):
             self.assertEqual(p.child1.child4.name1, 'n1')
 
 
-class ReverseSelectRelatedValidationTests(TestCase):
+class ReverseSelectRelatedValidationTests(SimpleTestCase):
     """
     Rverse related fields should be listed in the validation message when an
     invalid field is given in select_related().

tests/serializers/tests.py

@@ -11,7 +11,8 @@ from xml.dom import minidom
 from django.core import management, serializers
 from django.db import connection, transaction
 from django.test import (
-    TestCase, TransactionTestCase, override_settings, skipUnlessDBFeature,
+    SimpleTestCase, TestCase, TransactionTestCase, override_settings,
+    skipUnlessDBFeature,
 )
 from django.test.utils import Approximate
 from django.utils import six
@@ -34,7 +35,7 @@ except ImportError:
         "json2": "django.core.serializers.json",
     }
 )
-class SerializerRegistrationTests(TestCase):
+class SerializerRegistrationTests(SimpleTestCase):
     def setUp(self):
         self.old_serializers = serializers._serializers
         serializers._serializers = {}
@@ -664,7 +665,7 @@ class YamlImportModuleMock(object):
         return self._import_module(module_path)
 
 
-class NoYamlSerializerTestCase(TestCase):
+class NoYamlSerializerTestCase(SimpleTestCase):
     """Not having pyyaml installed provides a misleading error
 
     Refs: #12756

tests/serializers_regress/tests.py

@@ -19,7 +19,7 @@ from django.core.serializers.base import DeserializationError
 from django.core.serializers.xml_serializer import DTDForbidden
 from django.db import connection, models
 from django.http import HttpResponse
-from django.test import TestCase, skipUnlessDBFeature
+from django.test import SimpleTestCase, TestCase, skipUnlessDBFeature
 from django.utils import six
 from django.utils.functional import curry
 
@@ -584,7 +584,7 @@ for format in [f for f in serializers.get_serializer_formats()
         setattr(SerializerTests, 'test_' + format + '_serializer_stream', curry(streamTest, format))
 
 
-class XmlDeserializerSecurityTests(TestCase):
+class XmlDeserializerSecurityTests(SimpleTestCase):
 
     def test_no_dtd(self):
         """

tests/servers/test_basehttp.py

@@ -1,6 +1,6 @@
 from django.core.handlers.wsgi import WSGIRequest
 from django.core.servers.basehttp import WSGIRequestHandler
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.client import RequestFactory
 from django.test.utils import captured_stderr
 from django.utils.six import BytesIO
@@ -11,7 +11,7 @@ class Stub(object):
         self.__dict__.update(kwargs)
 
 
-class WSGIRequestHandlerTestCase(TestCase):
+class WSGIRequestHandlerTestCase(SimpleTestCase):
     def test_https(self):
         request = WSGIRequest(RequestFactory().get('/').environ)
         request.makefile = lambda *args, **kwargs: BytesIO()

tests/settings_tests/tests.py

@@ -152,7 +152,7 @@ class ChildDecoratedTestCase(ParentDecoratedTestCase):
         self.assertEqual(settings.TEST, 'override-child')
 
 
-class SettingsTests(TestCase):
+class SettingsTests(SimpleTestCase):
     def setUp(self):
         self.testvalue = None
         signals.setting_changed.connect(self.signal_callback)
@@ -279,7 +279,7 @@ class SettingsTests(TestCase):
         self.assertRaises(AttributeError, getattr, settings, 'TEST2')
 
 
-class TestComplexSettingOverride(TestCase):
+class TestComplexSettingOverride(SimpleTestCase):
     def setUp(self):
         self.old_warn_override_settings = signals.COMPLEX_OVERRIDE_SETTINGS.copy()
         signals.COMPLEX_OVERRIDE_SETTINGS.add('TEST_WARN')
@@ -304,7 +304,7 @@ class TestComplexSettingOverride(TestCase):
                 'Overriding setting TEST_WARN can lead to unexpected behavior.')
 
 
-class TrailingSlashURLTests(TestCase):
+class TrailingSlashURLTests(SimpleTestCase):
     """
     Tests for the MEDIA_URL and STATIC_URL settings.
 
@@ -386,7 +386,7 @@ class TrailingSlashURLTests(TestCase):
                          self.settings_module.STATIC_URL)
 
 
-class SecureProxySslHeaderTest(TestCase):
+class SecureProxySslHeaderTest(SimpleTestCase):
     settings_module = settings
 
     def setUp(self):
@@ -418,7 +418,7 @@ class SecureProxySslHeaderTest(TestCase):
         self.assertEqual(req.is_secure(), True)
 
 
-class IsOverriddenTest(TestCase):
+class IsOverriddenTest(SimpleTestCase):
     def test_configure(self):
         s = LazySettings()
         s.configure(SECRET_KEY='foo')

tests/shortcuts/tests.py

@@ -1,4 +1,4 @@
-from django.test import TestCase, ignore_warnings, override_settings
+from django.test import SimpleTestCase, ignore_warnings, override_settings
 from django.test.utils import require_jinja2
 from django.utils.deprecation import RemovedInDjango20Warning
 
@@ -6,7 +6,7 @@ from django.utils.deprecation import RemovedInDjango20Warning
 @override_settings(
     ROOT_URLCONF='shortcuts.urls',
 )
-class ShortcutTests(TestCase):
+class ShortcutTests(SimpleTestCase):
 
     def test_render_to_response(self):
         response = self.client.get('/render_to_response/')

tests/signed_cookies_tests/tests.py

@@ -2,11 +2,11 @@ from __future__ import unicode_literals
 
 from django.core import signing
 from django.http import HttpRequest, HttpResponse
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.test.utils import freeze_time
 
 
-class SignedCookieTest(TestCase):
+class SignedCookieTest(SimpleTestCase):
 
     def test_can_set_and_read_signed_cookies(self):
         response = HttpResponse()

tests/signing/tests.py

@@ -3,13 +3,13 @@ from __future__ import unicode_literals
 import datetime
 
 from django.core import signing
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.test.utils import freeze_time
 from django.utils import six
 from django.utils.encoding import force_str
 
 
-class TestSigner(TestCase):
+class TestSigner(SimpleTestCase):
 
     def test_signature(self):
         "signature() method should generate a signature"
@@ -113,7 +113,7 @@ class TestSigner(TestCase):
         self.assertEqual('foo:6NB0fssLW5RQvZ3Y-MTerq2rX7w', s.sign('foo'))
 
 
-class TestTimestampSigner(TestCase):
+class TestTimestampSigner(SimpleTestCase):
 
     def test_timestamp_signer(self):
         value = 'hello'

tests/staticfiles_tests/tests.py

@@ -18,7 +18,7 @@ from django.core.cache.backends.base import BaseCache
 from django.core.exceptions import ImproperlyConfigured
 from django.core.management import call_command
 from django.template import Context, Template
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.utils import six
 from django.utils._os import symlinks_supported, upath
 from django.utils.encoding import force_text
@@ -85,7 +85,7 @@ class BaseStaticFilesTestCase(object):
 
 
 @override_settings(**TEST_SETTINGS)
-class StaticFilesTestCase(BaseStaticFilesTestCase, TestCase):
+class StaticFilesTestCase(BaseStaticFilesTestCase, SimpleTestCase):
     pass
 
 
@@ -596,7 +596,7 @@ class TestHashedFiles(object):
     DEBUG=False,
 ))
 class TestCollectionCachedStorage(TestHashedFiles, BaseCollectionTestCase,
-        BaseStaticFilesTestCase, TestCase):
+        BaseStaticFilesTestCase, SimpleTestCase):
     """
     Tests for the Cache busting storage
     """
@@ -633,7 +633,7 @@ class TestCollectionCachedStorage(TestHashedFiles, BaseCollectionTestCase,
     DEBUG=False,
 ))
 class TestCollectionManifestStorage(TestHashedFiles, BaseCollectionTestCase,
-        BaseStaticFilesTestCase, TestCase):
+        BaseStaticFilesTestCase, SimpleTestCase):
     """
     Tests for the Cache busting storage
     """
@@ -701,7 +701,7 @@ class TestCollectionManifestStorage(TestHashedFiles, BaseCollectionTestCase,
     DEBUG=False,
 ))
 class TestCollectionSimpleCachedStorage(BaseCollectionTestCase,
-        BaseStaticFilesTestCase, TestCase):
+        BaseStaticFilesTestCase, SimpleTestCase):
     """
     Tests for the Cache busting storage
     """
@@ -863,7 +863,7 @@ class TestDefaultStorageFinder(StaticFilesTestCase, FinderTestCase):
     STATICFILES_FINDERS=['django.contrib.staticfiles.finders.FileSystemFinder'],
     STATICFILES_DIRS=[os.path.join(TEST_ROOT, 'project', 'documents')],
 )
-class TestMiscFinder(TestCase):
+class TestMiscFinder(SimpleTestCase):
     """
     A few misc finder tests.
     """

tests/test_client/tests.py

@@ -27,7 +27,9 @@ import datetime
 from django.contrib.auth.models import User
 from django.core import mail
 from django.http import HttpResponse
-from django.test import Client, RequestFactory, TestCase, override_settings
+from django.test import (
+    Client, RequestFactory, SimpleTestCase, TestCase, override_settings,
+)
 
 from .views import get_view, post_view, trace_view
 
@@ -542,7 +544,7 @@ class ClientTest(TestCase):
     MIDDLEWARE_CLASSES=['django.middleware.csrf.CsrfViewMiddleware'],
     ROOT_URLCONF='test_client.urls',
 )
-class CSRFEnabledClientTests(TestCase):
+class CSRFEnabledClientTests(SimpleTestCase):
 
     def test_csrf_enabled_client(self):
         "A client can be instantiated with CSRF checks enabled"
@@ -561,7 +563,7 @@ class CustomTestClient(Client):
     i_am_customized = "Yes"
 
 
-class CustomTestClientTest(TestCase):
+class CustomTestClientTest(SimpleTestCase):
     client_class = CustomTestClient
 
     def test_custom_test_client(self):
@@ -573,7 +575,7 @@ _generic_view = lambda request: HttpResponse(status=200)
 
 
 @override_settings(ROOT_URLCONF='test_client.urls')
-class RequestFactoryTest(TestCase):
+class RequestFactoryTest(SimpleTestCase):
     """Tests for the request factory."""
 
     # A mapping between names of HTTP/1.1 methods and their test views.

tests/test_client_regress/tests.py

@@ -14,7 +14,9 @@ from django.core.urlresolvers import NoReverseMatch, reverse
 from django.http import HttpResponse
 from django.template import Context, TemplateSyntaxError, engines
 from django.template.response import SimpleTemplateResponse
-from django.test import Client, TestCase, ignore_warnings, override_settings
+from django.test import (
+    Client, SimpleTestCase, TestCase, ignore_warnings, override_settings,
+)
 from django.test.client import RedirectCycleError, RequestFactory, encode_file
 from django.test.utils import ContextList, str_prefix
 from django.utils._os import upath
@@ -52,7 +54,7 @@ class TestDataMixin(object):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class AssertContainsTests(TestCase):
+class AssertContainsTests(SimpleTestCase):
 
     def test_contains(self):
         "Responses can be inspected for content, including counting repeated substrings"
@@ -322,7 +324,7 @@ class AssertTemplateUsedTests(TestDataMixin, TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class AssertRedirectsTests(TestCase):
+class AssertRedirectsTests(SimpleTestCase):
 
     def test_redirect_page(self):
         "An assertion is raised if the original page couldn't be retrieved as expected"
@@ -529,7 +531,7 @@ class AssertRedirectsTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class AssertFormErrorTests(TestCase):
+class AssertFormErrorTests(SimpleTestCase):
 
     def test_unknown_form(self):
         "An assertion is raised if the form name is unknown"
@@ -646,7 +648,7 @@ class AssertFormErrorTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class AssertFormsetErrorTests(TestCase):
+class AssertFormsetErrorTests(SimpleTestCase):
     msg_prefixes = [("", {}), ("abc: ", {"msg_prefix": "abc"})]
 
     def setUp(self):
@@ -879,7 +881,7 @@ class SessionEngineTests(TestDataMixin, TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls',)
-class URLEscapingTests(TestCase):
+class URLEscapingTests(SimpleTestCase):
 
     def test_simple_argument_get(self):
         "Get a view that has a simple string argument"
@@ -933,7 +935,7 @@ class ExceptionTests(TestDataMixin, TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class TemplateExceptionTests(TestCase):
+class TemplateExceptionTests(SimpleTestCase):
 
     @override_settings(TEMPLATES=[{
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
@@ -953,7 +955,7 @@ class TemplateExceptionTests(TestCase):
 # it was changed, and another one (without self.urls) to check it was reverted on
 # teardown. This pair of tests relies upon the alphabetical ordering of test execution.
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class UrlconfSubstitutionTests(TestCase):
+class UrlconfSubstitutionTests(SimpleTestCase):
 
     def test_urlconf_was_changed(self):
         "TestCase can enforce a custom URLconf on a per-test basis"
@@ -963,7 +965,7 @@ class UrlconfSubstitutionTests(TestCase):
 
 # This test needs to run *after* UrlconfSubstitutionTests; the zz prefix in the
 # name is to ensure alphabetical ordering.
-class zzUrlconfSubstitutionTests(TestCase):
+class zzUrlconfSubstitutionTests(SimpleTestCase):
 
     def test_urlconf_was_reverted(self):
         """URLconf is reverted to original value after modification in a TestCase
@@ -1184,7 +1186,7 @@ class SessionTests(TestDataMixin, TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class RequestMethodTests(TestCase):
+class RequestMethodTests(SimpleTestCase):
 
     def test_get(self):
         "Request a view via request method GET"
@@ -1232,7 +1234,7 @@ class RequestMethodTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class RequestMethodStringDataTests(TestCase):
+class RequestMethodStringDataTests(SimpleTestCase):
 
     def test_post(self):
         "Request a view with string data via request method POST"
@@ -1270,7 +1272,7 @@ class RequestMethodStringDataTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls',)
-class QueryStringTests(TestCase):
+class QueryStringTests(SimpleTestCase):
 
     def test_get_like_requests(self):
         # See: https://code.djangoproject.com/ticket/10571.
@@ -1316,7 +1318,7 @@ class QueryStringTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class UnicodePayloadTests(TestCase):
+class UnicodePayloadTests(SimpleTestCase):
 
     def test_simple_unicode_payload(self):
         "A simple ASCII-only unicode JSON document can be POSTed"
@@ -1359,7 +1361,7 @@ class DummyFile(object):
         return b'TEST_FILE_CONTENT'
 
 
-class UploadedFileEncodingTest(TestCase):
+class UploadedFileEncodingTest(SimpleTestCase):
     def test_file_encoding(self):
         encoded_file = encode_file('TEST_BOUNDARY', 'TEST_KEY', DummyFile('test_name.bin'))
         self.assertEqual(b'--TEST_BOUNDARY', encoded_file[0])
@@ -1381,7 +1383,7 @@ class UploadedFileEncodingTest(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls',)
-class RequestHeadersTest(TestCase):
+class RequestHeadersTest(SimpleTestCase):
     def test_client_headers(self):
         "A test client can receive custom headers"
         response = self.client.get("/check_headers/", HTTP_X_ARG_CHECK='Testing 123')
@@ -1397,7 +1399,7 @@ class RequestHeadersTest(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class ReadLimitedStreamTest(TestCase):
+class ReadLimitedStreamTest(SimpleTestCase):
     """
     Tests that ensure that HttpRequest.body, HttpRequest.read() and
     HttpRequest.read(BUFFER) have proper LimitedStream behavior.
@@ -1440,7 +1442,7 @@ class ReadLimitedStreamTest(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class RequestFactoryStateTest(TestCase):
+class RequestFactoryStateTest(SimpleTestCase):
     """Regression tests for #15929."""
     # These tests are checking that certain middleware don't change certain
     # global state. Alternatively, from the point of view of a test, they are
@@ -1467,7 +1469,7 @@ class RequestFactoryStateTest(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_client_regress.urls')
-class RequestFactoryEnvironmentTests(TestCase):
+class RequestFactoryEnvironmentTests(SimpleTestCase):
     """
     Regression tests for #8551 and #17067: ensure that environment variables
     are set correctly in RequestFactory.

tests/test_utils/tests.py

@@ -24,7 +24,7 @@ from .models import Car, Person, PossessedCar
 from .views import empty_response
 
 
-class SkippingTestCase(TestCase):
+class SkippingTestCase(SimpleTestCase):
     def _assert_skipping(self, func, expected_exc):
         # We cannot simply use assertRaises because a SkipTest exception will go unnoticed
         try:
@@ -92,7 +92,7 @@ class SkippingTestCase(TestCase):
         self._assert_skipping(test_func5, ValueError)
 
 
-class SkippingClassTestCase(TestCase):
+class SkippingClassTestCase(SimpleTestCase):
     def test_skip_class_unless_db_feature(self):
         @skipUnlessDBFeature("__class__")
         class NotSkippedTests(unittest.TestCase):
@@ -306,7 +306,7 @@ class AssertNumQueriesContextManagerTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='test_utils.urls')
-class AssertTemplateUsedContextManagerTests(TestCase):
+class AssertTemplateUsedContextManagerTests(SimpleTestCase):
 
     def test_usage(self):
         with self.assertTemplateUsed('template_used/base.html'):
@@ -403,7 +403,7 @@ class AssertTemplateUsedContextManagerTests(TestCase):
             self.assertTemplateNotUsed(response, 'template.html')
 
 
-class HTMLEqualTests(TestCase):
+class HTMLEqualTests(SimpleTestCase):
     def test_html_parser(self):
         element = parse_html('<div><p>Hello</p></div>')
         self.assertEqual(len(element.children), 1)
@@ -645,7 +645,7 @@ class HTMLEqualTests(TestCase):
         self.assertContains(response, '<p class="help">Some help text for the title (with unicode ŠĐĆŽćžšđ)</p>', html=True)
 
 
-class JSONEqualTests(TestCase):
+class JSONEqualTests(SimpleTestCase):
     def test_simple_equal(self):
         json1 = '{"attr1": "foo", "attr2":"baz"}'
         json2 = '{"attr1": "foo", "attr2":"baz"}'
@@ -690,7 +690,7 @@ class JSONEqualTests(TestCase):
             self.assertJSONNotEqual(valid_json, invalid_json)
 
 
-class XMLEqualTests(TestCase):
+class XMLEqualTests(SimpleTestCase):
     def test_simple_equal(self):
         xml1 = "<elem attr1='a' attr2='b' />"
         xml2 = "<elem attr1='a' attr2='b' />"
@@ -784,7 +784,7 @@ class SecondUrls:
     urlpatterns = [url(r'second/$', empty_response, name='second')]
 
 
-class OverrideSettingsTests(TestCase):
+class OverrideSettingsTests(SimpleTestCase):
 
     # #21518 -- If neither override_settings nor a setting_changed receiver
     # clears the URL cache between tests, then one of test_first or

tests/timezones/tests.py

@@ -18,8 +18,8 @@ from django.template import (
     Context, RequestContext, Template, TemplateSyntaxError, context_processors,
 )
 from django.test import (
-    TestCase, TransactionTestCase, override_settings, skipIfDBFeature,
-    skipUnlessDBFeature,
+    SimpleTestCase, TestCase, TransactionTestCase, override_settings,
+    skipIfDBFeature, skipUnlessDBFeature,
 )
 from django.test.utils import requires_tz_support
 from django.utils import six, timezone
@@ -656,7 +656,7 @@ class UnsupportedTimeZoneDatabaseTests(TestCase):
 
 
 @override_settings(TIME_ZONE='Africa/Nairobi')
-class SerializationTests(TestCase):
+class SerializationTests(SimpleTestCase):
 
     # Backend-specific notes:
     # - JSON supports only milliseconds, microseconds will be truncated.

tests/urlpatterns_reverse/tests.py

@@ -183,7 +183,7 @@ test_data = (
 
 
 @override_settings(ROOT_URLCONF='urlpatterns_reverse.no_urls')
-class NoURLPatternsTests(TestCase):
+class NoURLPatternsTests(SimpleTestCase):
 
     def test_no_urls_exception(self):
         """
@@ -201,7 +201,7 @@ class NoURLPatternsTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='urlpatterns_reverse.urls')
-class URLPatternReverse(TestCase):
+class URLPatternReverse(SimpleTestCase):
 
     @ignore_warnings(category=RemovedInDjango20Warning)
     def test_urlpattern_reverse(self):
@@ -399,7 +399,7 @@ LOGIN_URL = reverse_lazy('login')""")
 
 
 @override_settings(ROOT_URLCONF='urlpatterns_reverse.urls')
-class ReverseShortcutTests(TestCase):
+class ReverseShortcutTests(SimpleTestCase):
 
     def test_redirect_to_object(self):
         # We don't really need a model; just something with a get_absolute_url
@@ -458,7 +458,7 @@ class ReverseShortcutTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='urlpatterns_reverse.namespace_urls')
-class NamespaceTests(TestCase):
+class NamespaceTests(SimpleTestCase):
 
     def test_ambiguous_object(self):
         "Names deployed via dynamic URL objects that require namespaces can't be resolved"
@@ -576,7 +576,7 @@ class NamespaceTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF=urlconf_outer.__name__)
-class RequestURLconfTests(TestCase):
+class RequestURLconfTests(SimpleTestCase):
     def test_urlconf(self):
         response = self.client.get('/test/me/')
         self.assertEqual(response.status_code, 200)
@@ -670,7 +670,7 @@ class RequestURLconfTests(TestCase):
             b''.join(self.client.get('/second_test/'))
 
 
-class ErrorHandlerResolutionTests(TestCase):
+class ErrorHandlerResolutionTests(SimpleTestCase):
     """Tests for handler400, handler404 and handler500"""
 
     def setUp(self):
@@ -693,7 +693,7 @@ class ErrorHandlerResolutionTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='urlpatterns_reverse.urls_without_full_import')
-class DefaultErrorHandlerTests(TestCase):
+class DefaultErrorHandlerTests(SimpleTestCase):
 
     def test_default_handler(self):
         "If the urls.py doesn't specify handlers, the defaults are used"
@@ -710,7 +710,7 @@ class DefaultErrorHandlerTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF=None)
-class NoRootUrlConfTests(TestCase):
+class NoRootUrlConfTests(SimpleTestCase):
     """Tests for handler404 and handler500 if urlconf is None"""
 
     def test_no_handler_exception(self):
@@ -718,7 +718,7 @@ class NoRootUrlConfTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='urlpatterns_reverse.namespace_urls')
-class ResolverMatchTests(TestCase):
+class ResolverMatchTests(SimpleTestCase):
 
     def test_urlpattern_resolve(self):
         for path, url_name, app_name, namespace, view_name, func, args, kwargs in resolve_test_data:
@@ -755,7 +755,7 @@ class ResolverMatchTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='urlpatterns_reverse.erroneous_urls')
-class ErroneousViewTests(TestCase):
+class ErroneousViewTests(SimpleTestCase):
 
     def test_erroneous_resolve(self):
         self.assertRaises(ImportError, self.client.get, '/erroneous_inner/')
@@ -777,7 +777,7 @@ class ErroneousViewTests(TestCase):
         self.assertRaises(ImproperlyConfigured, reverse, 'whatever blah blah')
 
 
-class ViewLoadingTests(TestCase):
+class ViewLoadingTests(SimpleTestCase):
     def test_view_loading(self):
         self.assertEqual(get_callable('urlpatterns_reverse.views.empty_view'), empty_view)
 
@@ -803,7 +803,7 @@ class IncludeTests(SimpleTestCase):
 
 
 @override_settings(ROOT_URLCONF='urlpatterns_reverse.urls')
-class LookaheadTests(TestCase):
+class LookaheadTests(SimpleTestCase):
     def test_valid_resolve(self):
         test_urls = [
             '/lookahead-/a-city/',

tests/utils_tests/test_autoreload.py

@@ -4,7 +4,7 @@ from importlib import import_module
 
 from django import conf
 from django.contrib import admin
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.test.utils import extend_sys_path
 from django.utils._os import npath, upath
 from django.utils.autoreload import gen_filenames
@@ -12,7 +12,7 @@ from django.utils.autoreload import gen_filenames
 LOCALE_PATH = os.path.join(os.path.dirname(__file__), 'locale')
 
 
-class TestFilenameGenerator(TestCase):
+class TestFilenameGenerator(SimpleTestCase):
     def setUp(self):
         # Empty cached variables
         from django.utils import autoreload

tests/utils_tests/test_dateformat.py

@@ -2,7 +2,7 @@ from __future__ import unicode_literals
 
 from datetime import date, datetime
 
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 from django.test.utils import TZ_SUPPORT, requires_tz_support
 from django.utils import dateformat, translation
 from django.utils.dateformat import format
@@ -12,7 +12,7 @@ from django.utils.timezone import (
 
 
 @override_settings(TIME_ZONE='Europe/Copenhagen')
-class DateFormatTests(TestCase):
+class DateFormatTests(SimpleTestCase):
 
     def setUp(self):
         self._orig_lang = translation.get_language()

tests/utils_tests/test_decorators.py

@@ -1,7 +1,7 @@
 from django.http import HttpResponse
 from django.template import engines
 from django.template.response import TemplateResponse
-from django.test import RequestFactory, TestCase
+from django.test import RequestFactory, SimpleTestCase
 from django.utils.decorators import decorator_from_middleware
 
 
@@ -28,7 +28,7 @@ class FullMiddleware(object):
     def process_request(self, request):
         request.process_request_reached = True
 
-    def process_view(sef, request, view_func, view_args, view_kwargs):
+    def process_view(self, request, view_func, view_args, view_kwargs):
         request.process_view_reached = True
 
     def process_template_response(self, request, response):
@@ -44,7 +44,7 @@ class FullMiddleware(object):
 full_dec = decorator_from_middleware(FullMiddleware)
 
 
-class DecoratorFromMiddlewareTests(TestCase):
+class DecoratorFromMiddlewareTests(SimpleTestCase):
     """
     Tests for view decorators created using
     ``django.utils.decorators.decorator_from_middleware``.

tests/utils_tests/test_jslex.py

@@ -3,11 +3,11 @@
 # originally from https://bitbucket.org/ned/jslex
 from __future__ import unicode_literals
 
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.utils.jslex import JsLexer, prepare_js_for_gettext
 
 
-class JsTokensTest(TestCase):
+class JsTokensTest(SimpleTestCase):
     LEX_CASES = [
         # ids
         ("a ABC $ _ a123", ["id a", "id ABC", "id $", "id _", "id a123"]),
@@ -207,7 +207,7 @@ GETTEXT_CASES = (
 )
 
 
-class JsToCForGettextTest(TestCase):
+class JsToCForGettextTest(SimpleTestCase):
     pass
 
 

tests/utils_tests/test_safestring.py

@@ -1,7 +1,7 @@
 from __future__ import unicode_literals
 
 from django.template import Context, Template
-from django.test import TestCase
+from django.test import SimpleTestCase
 from django.utils import html, six, text
 from django.utils.encoding import force_bytes, force_text
 from django.utils.functional import lazy
@@ -20,7 +20,7 @@ class customescape(six.text_type):
         return self.replace('<', '<<').replace('>', '>>')
 
 
-class SafeStringTest(TestCase):
+class SafeStringTest(SimpleTestCase):
     def assertRenderEqual(self, tpl, expected, **context):
         context = Context(context)
         tpl = Template(tpl)

tests/view_tests/tests/test_csrf.py

@@ -1,9 +1,9 @@
-from django.test import Client, TestCase, override_settings
+from django.test import Client, SimpleTestCase, override_settings
 from django.utils.translation import override
 
 
 @override_settings(ROOT_URLCONF="view_tests.urls")
-class CsrfViewTests(TestCase):
+class CsrfViewTests(SimpleTestCase):
 
     def setUp(self):
         super(CsrfViewTests, self).setUp()

tests/view_tests/tests/test_debug.py

@@ -15,7 +15,7 @@ from django.core import mail
 from django.core.files.uploadedfile import SimpleUploadedFile
 from django.core.urlresolvers import reverse
 from django.template import TemplateDoesNotExist
-from django.test import RequestFactory, TestCase, override_settings
+from django.test import RequestFactory, SimpleTestCase, override_settings
 from django.test.utils import LoggingCaptureMixin
 from django.utils import six
 from django.utils.encoding import force_bytes, force_text
@@ -33,7 +33,7 @@ if six.PY3:
     from .py3_test_debug import Py3ExceptionReporterTests  # NOQA
 
 
-class CallableSettingWrapperTests(TestCase):
+class CallableSettingWrapperTests(SimpleTestCase):
     """ Unittests for CallableSettingWrapper
     """
     def test_repr(self):
@@ -49,7 +49,7 @@ class CallableSettingWrapperTests(TestCase):
 
 
 @override_settings(DEBUG=True, ROOT_URLCONF="view_tests.urls")
-class DebugViewTests(LoggingCaptureMixin, TestCase):
+class DebugViewTests(LoggingCaptureMixin, SimpleTestCase):
 
     def test_files(self):
         response = self.client.get('/raises/')
@@ -202,7 +202,7 @@ class DebugViewTests(LoggingCaptureMixin, TestCase):
         'BACKEND': 'django.template.backends.dummy.TemplateStrings',
     }],
 )
-class NonDjangoTemplatesDebugViewTests(TestCase):
+class NonDjangoTemplatesDebugViewTests(SimpleTestCase):
 
     def test_400(self):
         # Ensure that when DEBUG=True, technical_500_template() is called.
@@ -224,7 +224,7 @@ class NonDjangoTemplatesDebugViewTests(TestCase):
         self.assertContains(response, '<div class="context" id="', status_code=500)
 
 
-class ExceptionReporterTests(TestCase):
+class ExceptionReporterTests(SimpleTestCase):
     rf = RequestFactory()
 
     def test_request_and_exception(self):
@@ -417,7 +417,7 @@ class ExceptionReporterTests(TestCase):
         )
 
 
-class PlainTextReportTests(TestCase):
+class PlainTextReportTests(SimpleTestCase):
     rf = RequestFactory()
 
     def test_request_and_exception(self):
@@ -644,7 +644,7 @@ class ExceptionReportTestMixin(object):
 
 
 @override_settings(ROOT_URLCONF='view_tests.urls')
-class ExceptionReporterFilterTests(ExceptionReportTestMixin, LoggingCaptureMixin, TestCase):
+class ExceptionReporterFilterTests(ExceptionReportTestMixin, LoggingCaptureMixin, SimpleTestCase):
     """
     Ensure that sensitive information can be filtered out of error reports.
     Refs #14614.
@@ -835,7 +835,7 @@ class ExceptionReporterFilterTests(ExceptionReportTestMixin, LoggingCaptureMixin
                 self.assertNotContains(response, 'should not be displayed', status_code=500)
 
 
-class AjaxResponseExceptionReporterFilter(ExceptionReportTestMixin, LoggingCaptureMixin, TestCase):
+class AjaxResponseExceptionReporterFilter(ExceptionReportTestMixin, LoggingCaptureMixin, SimpleTestCase):
     """
     Ensure that sensitive information can be filtered out of error reports.
 

tests/view_tests/tests/test_i18n.py

@@ -10,7 +10,8 @@ from os import path
 from django.conf import settings
 from django.core.urlresolvers import reverse
 from django.test import (
-    LiveServerTestCase, TestCase, modify_settings, override_settings,
+    LiveServerTestCase, SimpleTestCase, TestCase, modify_settings,
+    override_settings,
 )
 from django.utils import six
 from django.utils._os import upath
@@ -106,7 +107,7 @@ class I18NTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='view_tests.urls')
-class JsI18NTests(TestCase):
+class JsI18NTests(SimpleTestCase):
     """
     Tests django views in django/views/i18n.py that need to change
     settings.LANGUAGE_CODE.
@@ -184,7 +185,7 @@ class JsI18NTests(TestCase):
 
 
 @override_settings(ROOT_URLCONF='view_tests.urls')
-class JsI18NTestsMultiPackage(TestCase):
+class JsI18NTestsMultiPackage(SimpleTestCase):
     """
     Tests for django views in django/views/i18n.py that need to change
     settings.LANGUAGE_CODE and merge JS translation from several packages.

tests/view_tests/tests/test_json.py

@@ -3,11 +3,11 @@ from __future__ import unicode_literals
 
 import json
 
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 
 
 @override_settings(ROOT_URLCONF='view_tests.generic_urls')
-class JsonResponseTests(TestCase):
+class JsonResponseTests(SimpleTestCase):
 
     def test_json_response(self):
         response = self.client.get('/json/response/')

tests/view_tests/tests/test_specials.py

@@ -1,11 +1,11 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.test import TestCase, override_settings
+from django.test import SimpleTestCase, override_settings
 
 
 @override_settings(ROOT_URLCONF='view_tests.generic_urls')
-class URLHandling(TestCase):
+class URLHandling(SimpleTestCase):
     """
     Tests for URL handling in views and responses.
     """