Addressed

Author: nhsdevws

backend/tests/test_fhir_controller.py

@@ -1630,7 +1630,7 @@ def setUp(self):
         self.date_to_key = "-date.to"
         self.nhs_number_valid_value = "9000000009"
         self.patient_identifier_valid_value = f"{patient_identifier_system}|{self.nhs_number_valid_value}"
-        self.mock_redis_client.hkeys.return_value = MOCK_REDIS_V2D_RESPONSE
+        self.mock_redis_client.hkeys.return_value = self.MOCK_REDIS_V2D_RESPONSE
 
     def tearDown(self):
         return super().tearDown()