old_contents: from test_app.models import TestModel
  from test_app.tests.base import TestBase, TestBaseNonAtomic, TestModelMixin, LoginMixin
  
  
  class CreateRevisionTest(TestModelMixin, TestBase):
  
      def testCreateRevision(self):
          response = self.client.post("/test-app/create-revision/")
          obj = TestModel.objects.get(pk=response.content)
          self.assertSingleRevision((obj,))
  
      def testCreateRevisionGet(self):
          self.client.get("/test-app/create-revision/")
          self.assertNoRevision()
  
  
  class CreateRevisionAtomicTest(TestModelMixin, TestBaseNonAtomic):
  
      def testCreateRevisionAtomic(self):
          is_atomic = self.client.post("/test-app/atomic-revision/").content
          self.assertEqual(is_atomic, 'True')
  
      def testCreateRevisionNonAtomic(self):
          is_atomic = self.client.post("/test-app/atomic-revision/").content
          self.assertEqual(is_atomic, 'False')
  
  
  class CreateRevisionUserTest(LoginMixin, TestModelMixin, TestBase):
  
      def testCreateRevisionUser(self):
          response = self.client.post("/test-app/create-revision/")
          obj = TestModel.objects.get(pk=response.content)
          self.assertSingleRevision((obj,), user=self.user)
  
  
  class RevisionMixinTest(TestModelMixin, TestBase):
  
      def testRevisionMixin(self):
          response = self.client.post("/test-app/revision-mixin/")
          obj = TestModel.objects.get(pk=response.content)
          self.assertSingleRevision((obj,))
  
      def testRevisionMixinGet(self):
          self.client.get("/test-app/revision-mixin/")
          self.assertNoRevision()
  
  
  class RevisionMixinTest(TestModelMixin, TestBaseNonAtomic):
  
      def testRevisionMixinAtomic(self):
          is_atomic = self.client.post("/test-app/revision-mixin-atomic/").content
          self.assertEqual(is_atomic, 'True')
  
      def testRevisionMixinNonAtomic(self):
          is_atomic = self.client.post("/test-app/revision-mixin-non-atomic/").content
          self.assertEqual(is_atomic, 'False')
  
  
  class RevisionMixinUserTest(LoginMixin, TestModelMixin, TestBase):
  
      def testCreateRevisionUser(self):
          response = self.client.post("/test-app/revision-mixin/")
          obj = TestModel.objects.get(pk=response.content)
          self.assertSingleRevision((obj,), user=self.user)
  
new_contents: from test_app.models import TestModel
  from test_app.tests.base import TestBase, TestBaseNonAtomic, TestModelMixin, LoginMixin
  
  
  class CreateRevisionTest(TestModelMixin, TestBase):
  
      def testCreateRevision(self):
          response = self.client.post("/test-app/create-revision/")
          obj = TestModel.objects.get(pk=response.content)
          self.assertSingleRevision((obj,))
  
      def testCreateRevisionGet(self):
          self.client.get("/test-app/create-revision/")
          self.assertNoRevision()
  
  
  class CreateRevisionAtomicTest(TestModelMixin, TestBaseNonAtomic):
  
      def testCreateRevisionAtomic(self):
          is_atomic = self.client.post("/test-app/atomic-revision/").content
          self.assertEqual(is_atomic, 'True')
  
      def testCreateRevisionNonAtomic(self):
          is_atomic = self.client.post("/test-app/non-atomic-revision/").content
          self.assertEqual(is_atomic, 'False')
  
  
  class CreateRevisionUserTest(LoginMixin, TestModelMixin, TestBase):
  
      def testCreateRevisionUser(self):
          response = self.client.post("/test-app/create-revision/")
          obj = TestModel.objects.get(pk=response.content)
          self.assertSingleRevision((obj,), user=self.user)
  
  
  class RevisionMixinTest(TestModelMixin, TestBase):
  
      def testRevisionMixin(self):
          response = self.client.post("/test-app/revision-mixin/")
          obj = TestModel.objects.get(pk=response.content)
          self.assertSingleRevision((obj,))
  
      def testRevisionMixinGet(self):
          self.client.get("/test-app/revision-mixin/")
          self.assertNoRevision()
  
  
  class RevisionMixinTest(TestModelMixin, TestBaseNonAtomic):
  
      def testRevisionMixinAtomic(self):
          is_atomic = self.client.post("/test-app/revision-mixin-atomic/").content
          self.assertEqual(is_atomic, 'True')
  
      def testRevisionMixinNonAtomic(self):
          is_atomic = self.client.post("/test-app/revision-mixin-non-atomic/").content
          self.assertEqual(is_atomic, 'False')
  
  
  class RevisionMixinUserTest(LoginMixin, TestModelMixin, TestBase):
  
      def testCreateRevisionUser(self):
          response = self.client.post("/test-app/revision-mixin/")
          obj = TestModel.objects.get(pk=response.content)
          self.assertSingleRevision((obj,), user=self.user)
  
subject: Test fix