Personally, I'd have put the live data test in here. I'm guessing your mentality for including this method in the manager is that it makes more sense that the manager control all of that database update logic, so I'd have gone one step further and made these test cases the authoritative test for those calls as well.

Regardless, I'm glad you included this note in here. My gut reaction in seeing this is that you have a database-centric method that doesn't test the database queries are valid, so at least I know to look somewhere else.