unit testing – How do I test a user recieving a text?

I am writing functional tests for my application that scrapes some data online then sends the resuls in an SMS text (on a weekly basis). My understanding is that functional tests are meant to test the functionality from the users’ point of view. So, how do I “test” that the user recieves a text? I am using Twilio API. Also, how do I test that the user is recieving the text weekly? Am I thinking about this wrong?