VED-457: refactor e-tag headers

Author: Akol125

e2e/test_create_immunization.py

@@ -54,6 +54,7 @@ def test_non_unique_identifier(self):
         # Check that duplice CREATE request is rejected after the event is updated then deleted then reinstated
         imms["id"] = imms_id  # Imms fhir resource should include the id for update
         self.default_imms_api.update_immunization(imms_id, imms)
+        res = self.default_imms_api.get_immunization_by_id(imms_id)
         self.assertEqual(res.status_code, 200)
         del imms["id"]  # Imms fhir resource should not include an id for create
         self.assert_operation_outcome(self.default_imms_api.create_immunization(imms, expected_status_code=422), 422)

e2e/utils/immunisation_api.py

@@ -150,11 +150,11 @@ def create_immunization(self, imms, expected_status_code: int = 201):
 
         return response
 
-    def update_immunization(self, imms_id, imms, expected_status_code: int = 200):
+    def update_immunization(self, imms_id, imms, expected_status_code: int = 200, headers=None):
         return self.make_request_with_backoff(
             http_method="PUT",
             url=f"{self.url}/Immunization/{imms_id}",
-            headers=self._update_headers(),
+            headers=self._update_headers(headers),
             expected_status_code=expected_status_code,
             json=imms
         )