fix: simplify boolean and add another test

Signed-off-by: jmeridth <[email protected]>

evergreen.py

@@ -162,11 +162,9 @@ def main():  # pragma: no cover
 def is_repo_created_date_before(repo_created_at: str, created_after_date: str):
     """Check if the repository was created before the created_after_date"""
     repo_created_at_date = datetime.fromisoformat(repo_created_at).replace(tzinfo=None)
-    if created_after_date and repo_created_at_date < datetime.strptime(
+    return created_after_date and repo_created_at_date < datetime.strptime(
         created_after_date, "%Y-%m-%d"
-    ):
-        return True
-    return False
+    )
 
 
 def is_dependabot_security_updates_enabled(owner, repo, access_token):

test_evergreen.py

@@ -610,6 +610,15 @@ def test_is_repo_created_date_has_no_time_zone(self):
 
         self.assertTrue(result)
 
+    def test_is_created_after_date_is_empty_string(self):
+        """Test the repo.created_at date is after created_after_date."""
+        repo_created_at = "2020-01-01"
+        created_after_date = ""
+
+        result = is_repo_created_date_before(repo_created_at, created_after_date)
+
+        self.assertFalse(result)
+
 
 if __name__ == "__main__":
     unittest.main()