Faux login required for App Store submission reviews?

I am about to upload my 开发者_运维知识库app today and remember reading something about giving reviewers the ability to login using a faux account, otherwise they will reject the app. However, I am not really sure if this is correct, or if it is, how to go about it? Users can login with their account in my app, but how would I provide the reviewers with login information?

There's a field in the iTunes Connect app submission form that allows you to enter sample credentials. All you have to do is create a dummy account on whatever site your app accesses and provide the login information for that.