Question Regarding Track for Loco Testing

Good morning! I have what may be a silly question. Currently I am working on my first HO layout and this past weekend I bought a new Atlas DCC locomotive. Here is the thing: I want to test my new "ish" locomotive but the layout is not complete. Can I power up and address the loco even thought the track has not been fully connected? It is only half completed essentially having the track "open" on both ends.

Thanks!
John