Assert that delegate methods do not return nil
Assert that delegate methods do not return nil

Summary: Version: patch

Test Plan: Run unit tests

Reviewers: westin

Reviewed By: westin

Subscribers: jenkins

Differential Revision: https://phabricator.automatic.co/D19760

Automatic/AUTUserNotifications,Automatic/AUTUserNotifications,Automatic/AUTUserNotifications