Firebase test lab, passwords authentication

I've been banging my head around this for a while now, but can't figure out if it is possible to test passwordless auth in firebase test lab for iOS.

Main issue is that there is a need to be logged in with your email account in order to receive the email and copy sign in link and subsequently click on it.

Is this at all possible to test? Does firebase provide some sort of testing helper that allows to acquire such sign in link easier?