 Cornet was selected by the Edmonton Oilers in the fifth round (133rd overall) of the 2008 NHL Entry Draft.As a youth, Cornet played in the 2003 Quebec International Pee-Wee Hockey Tournament with the Val'd-Or Foreurs minor ice hockey team.Prior to turning professional, Cornet played major junior hockey in the Quebec Major Junior Hockey League with Rimouski Oceanic and the Rouyn-Noranda Huskies.