diff --git a/python/tests/scripts/test_update_storage.py b/python/tests/scripts/test_update_storage.py
index 4a3388cf73..f93b01345b 100644
--- a/python/tests/scripts/test_update_storage.py
+++ b/python/tests/scripts/test_update_storage.py
@@ -93,13 +93,20 @@ def test_upgrade_script_s3(moto_s3_endpoint_and_credentials):
     assert s3_storage.credential_key == ""
 
 
-@pytest.mark.skipif(sys.platform == "win32", reason="Test fixture issue with creds")
-def test_upgrade_script_s3_rbac_ok(moto_s3_endpoint_and_credentials, monkeypatch):
-    """Just _RBAC_ as creds is a placeholder. Leave config with that alone."""
+def get_s3_aws_auth_uri_bucket_and_setup_server(moto_s3_endpoint_and_credentials, monkeypatch):
     endpoint, port, bucket, aws_access_key, aws_secret_key = moto_s3_endpoint_and_credentials
-    uri = endpoint.replace("http://", "s3://").rsplit(":", 1)[0] + ":" + bucket + "?aws_auth=true" + "&port=" + port
     monkeypatch.setenv("AWS_ACCESS_KEY_ID", aws_access_key)
     monkeypatch.setenv("AWS_SECRET_ACCESS_KEY", aws_secret_key)
+    return (
+        endpoint.replace("http://", "s3://").rsplit(":", 1)[0] + ":" + bucket + "?aws_auth=true" + "&port=" + port,
+        bucket,
+    )
+
+
+@pytest.mark.skipif(sys.platform == "win32", reason="Test fixture issue with creds")
+def test_upgrade_script_s3_rbac_ok(moto_s3_endpoint_and_credentials, monkeypatch):
+    """Just _RBAC_ as creds is a placeholder. Leave config with that alone."""
+    uri, bucket = get_s3_aws_auth_uri_bucket_and_setup_server(moto_s3_endpoint_and_credentials, monkeypatch)
 
     ac = Arctic(uri)
     create_library_config(ac, LIB_NAME)
@@ -112,9 +119,14 @@ def test_upgrade_script_s3_rbac_ok(moto_s3_endpoint_and_credentials, monkeypatch
     assert s3_storage.credential_name == USE_AWS_CRED_PROVIDERS_TOKEN
     assert s3_storage.credential_key == USE_AWS_CRED_PROVIDERS_TOKEN
 
+
+@pytest.mark.skipif(sys.platform == "win32", reason="Test fixture issue with creds")
+def test_aws_auth_with_storage_overrider(moto_s3_endpoint_and_credentials, monkeypatch):
+    uri, _ = get_s3_aws_auth_uri_bucket_and_setup_server(moto_s3_endpoint_and_credentials, monkeypatch)
     expected = pd.DataFrame({"col1": [1, 2, 3], "col2": [4, 5, 6]})
     sym = "test"
     ac = Arctic(uri)
+    ac.create_library(LIB_NAME)
     ac[LIB_NAME].write(sym, expected)
 
     ac = Arctic(uri)  # Force load lib config from storage, to check "storage-overridened" config