String cleanup complete.

Signed-off-by: Cliff Hill <Clifford.hill@gsa.gov>

tests/app/celery/test_process_ses_receipts_tasks.py

@@ -16,7 +16,7 @@ from app.celery.test_key_tasks import (
     ses_soft_bounce_callback,
 )
 from app.dao.notifications_dao import get_notification_by_id
-from app.enums import NotificationStatus
+from app.enums import CallbackType, NotificationStatus
 from app.models import Complaint
 from tests.app.conftest import create_sample_notification
 from tests.app.db import (
@@ -407,7 +407,7 @@ def test_ses_callback_should_send_on_complaint_to_user_callback_api(
     create_service_callback_api(
         service=sample_email_template.service,
         url="https://original_url.com",
-        callback_type="complaint",
+        callback_type=CallbackType.COMPLAINT,
     )
     notification = create_notification(
         template=sample_email_template,

tests/app/celery/test_service_callback_tasks.py

@@ -27,7 +27,10 @@ from tests.app.db import (
 def test_send_delivery_status_to_service_post_https_request_to_service_with_encrypted_data(
     notify_db_session, notification_type
 ):
-    callback_api, template = _set_up_test_data(notification_type, "delivery_status")
+    callback_api, template = _set_up_test_data(
+        notification_type,
+        CallbackType.DELIVERY_STATUS,
+    )
     datestr = datetime(2017, 6, 20)
 
     notification = create_notification(