Update test_custom_exceptions.py

Author: OleHo370

python_test/test_custom_exceptions.py

@@ -1,5 +1,6 @@
 from fastapi import FastAPI
 from fastapi.testclient import TestClient
+import pytest
 from gs.backend.exceptions.exception_handlers import setup_exception_handlers
 from gs.backend.exceptions.exceptions import (
     BaseOrbitalError,
@@ -82,4 +83,4 @@ def test_custom_exceptions(endpoint, status_code, response_key, expected_message
     fastapi_test_client = create_exception_handler_client()
     response = fastapi_test_client.get(endpoint)
     assert response.status_code == status_code
-    assert response.json().get(response_key) == expected_message
+    assert response.json().get(response_key) == expected_message