Update unit tests to support authentication.

sage_validation/file_validator/tests.py

-"""All the tests for the file_validator app."""

test/conftest.py

@@ -2,6 +2,7 @@
 from unittest.mock import MagicMock
 
 import pytest
+from django.contrib.auth.models import User
 from django.core.files.uploadedfile import SimpleUploadedFile
 from faker import Faker
 from rest_framework.test import APIClient
@@ -144,4 +145,8 @@ def mock_meo_database(mocker: MagicMock)-> None:
 @pytest.fixture
 def api_client() -> APIClient:
     """Fixture to return Django API test client."""
-    return APIClient()
+    fake = Faker()
+    user = User.objects.create_user(username=fake.user_name(), password=fake.password())
+    client = APIClient()
+    client.force_authenticate(user=user)
+    return client

test/test_file_validator/test_file_validator_endpoints.py

@@ -8,6 +8,15 @@ from rest_framework.test import APIClient
 UPLOAD_FILE_URL = reverse("upload-file")
 
 
+@pytest.mark.django_db
+def test_csv_upload_unauthenticated(sample_input_file: SimpleUploadedFile) -> None:
+    """Test that a valid CSV upload succeeds."""
+    api_client = APIClient()
+    response = api_client.post(UPLOAD_FILE_URL, {"file": sample_input_file}, format="multipart")
+
+    assert response.status_code == 403
+    assert response.json()["detail"] == "Authentication credentials were not provided."
+
 @pytest.mark.django_db
 def test_csv_upload_valid(
         api_client: APIClient, sample_input_file: SimpleUploadedFile, mock_meo_database: MagicMock