Add a test for the Django admin file upload

Author: LinaSSavova

styleguide_example/files/tests/flows/test_standard_upload.py

@@ -105,3 +105,103 @@ class StandardUploadAdminTests(TestCase):
     1. Create a new file via the Django admin, assert error, nothing gets created.
     2. Update an existing fila via the Django admin, assert error, nothing gets created.
     """
+    def setUp(self):
+        self.client = APIClient()
+
+        self.admin_upload_file_url = reverse("admin:files_file_add")
+        self.admin_files_list_url = reverse("admin:files_file_changelist")
+        self.admin_update_file_url = lambda file: reverse(
+            "admin:files_file_change",
+            kwargs={"object_id": str(file.id)}
+        )
+
+    @override_settings(FILE_MAX_SIZE=10)
+    def test_standard_admin_upload_and_update(self):
+        file_max_size = settings.FILE_MAX_SIZE
+
+        self.assertEqual(0, File.objects.count())
+
+        # Create a superuser
+        credentials = {
+            "email": "[email protected]",
+            "password": "123456",
+            "is_admin": True,
+            "is_superuser": True
+        }
+        user = BaseUser.objects.create(**credentials)
+
+        self.assertEqual(1, BaseUser.objects.count())
+
+        file_1 = SimpleUploadedFile(
+            name="first_file.txt", content=b"Test!", content_type="text/plain"
+        )
+
+        data_file_1 = {
+            "file": file_1,
+            "uploaded_by": user.id
+        }
+
+        # Log in with the superuser account
+        self.client.force_login(user)
+
+        with self.subTest("1. Create a new file via the Django admin, assert everything gets created"):
+            response = self.client.post(self.admin_upload_file_url, data_file_1)
+            successfully_uploaded_file = File.objects.last()
+
+            self.assertEqual(302, response.status_code)
+            self.assertEqual(self.admin_files_list_url, response.url)
+            self.assertEqual(1, File.objects.count())
+            self.assertEqual(file_1.name, successfully_uploaded_file.original_file_name)
+
+        file_2 = SimpleUploadedFile(
+            name="second_file.txt", content=(file_max_size - 1) * "a".encode(), content_type="text/plain"
+        )
+
+        data_file_2 = {
+            "file": file_2,
+            "uploaded_by": user.id
+        }
+
+        with self.subTest("2. Update an existing file via the Django admin, assert everything gets updated"):
+            response = self.client.post(self.admin_update_file_url(successfully_uploaded_file), data_file_2)
+
+            self.assertEqual(302, response.status_code)
+            self.assertRedirects(response, self.admin_files_list_url)
+            self.assertEqual(1, File.objects.count())
+            self.assertEqual(file_2.name, File.objects.last().original_file_name)
+
+        file_3 = SimpleUploadedFile(
+            name="oversized_file.txt", content=(file_max_size + 10) * "b".encode(), content_type="text/plain"
+        )
+
+        data_oversized_file = {
+            "file": file_3,
+            "uploaded_by": user.id
+        }
+
+        with self.subTest("3. Create a new oversized file via the Django admin, assert error, nothing gets created"):
+            response = self.client.post(self.admin_upload_file_url, data_oversized_file)
+            response_2 = self.client.get(response.url)
+
+            self.assertContains(response_2, "File is too large")
+            self.assertEqual(1, File.objects.count())
+            self.assertEqual(file_2.name, File.objects.last().original_file_name)
+
+        file_4 = SimpleUploadedFile(
+            name="new_oversized_file.txt", content=(file_max_size + 20) * "c".encode(), content_type="text/plain"
+        )
+
+        data_new_oversized_file = {
+            "file": file_4,
+            "uploaded_by": user.id
+        }
+
+        with self.subTest(
+            "4. Update an existing file with an oversized one via the Django admin, assert error, nothing gets created"
+        ):
+            response = self.client.post(self.admin_update_file_url(File.objects.last()), data_new_oversized_file)
+            response_2 = self.client.get(response.url)
+
+            self.assertContains(response_2, "File is too large")
+            self.assertEqual(1, File.objects.count())
+            self.assertEqual(file_2.name, File.objects.last().original_file_name)