Return pendulum instance from last_submission_timestamp

atst/models/request.py

@@ -2,6 +2,7 @@ from sqlalchemy import Column, func, ForeignKey
 from sqlalchemy.types import DateTime
 from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.orm import relationship
+import pendulum
 
 from atst.models import Base
 from atst.models.types import Id
@@ -51,10 +52,11 @@ class Request(Base):
         return False
 
     @property
-    def last_submission_date(self):
+    def last_submission_timestamp(self):
         def _is_submission(status_event):
             return status_event.new_status == RequestStatus.SUBMITTED
 
         last_submission = first_or_none(_is_submission, reversed(self.status_events))
         if last_submission:
-            return last_submission.time_created
+            return pendulum.instance(last_submission.time_created)
+        return None

tests/domain/test_requests.py

@@ -70,13 +70,13 @@ def test_should_allow_submission(new_request):
     assert not Requests.should_allow_submission(new_request)
 
 
-def test_request_knows_its_last_submission_date(new_request):
+def test_request_knows_its_last_submission_timestamp(new_request):
     submitted_request = Requests.submit(new_request)
-    assert submitted_request.last_submission_date
+    assert submitted_request.last_submission_timestamp
 
 
-def test_request_knows_if_it_has_no_last_submission_date(new_request):
-    assert new_request.last_submission_date is None
+def test_request_knows_if_it_has_no_last_submission_timestamp(new_request):
+    assert new_request.last_submission_timestamp is None
 
 
 def test_exists(session):