Williams has become the latest driver to confirm its drivers for the upcoming F1 test at Mugello.

The team will field reserve driver Valtteri Bottas on the opening day of running at the wheel of the FW34 before race drivers Bruno Senna and Pastor Maldonado take over for a day apiece.

Bottas, who has already taken part in Friday practice at three races so far this season, becomes the latest non-race driver confirmed for the test.

Mugello test line-up:

McLaren:
Oliver Turvey
Gary Paffett

Ferrari:
Fernando Alonso - May 1, 2
Felipe Massa - May 3

Lotus:
Jerome D'Ambrosio - May 1
Kimi Raikkonen - May 2
Romain Grosjean - May 3

Sauber:
Kamui Kobayashi - May 1, 2
Sergio Perez - May 3

Force India:
Jules Bianchi - May 1
Paul di Resta - May 2
Nico Hulkenberg - May 3

Williams:
Valtteri Bottas - May 1
Bruno Senna - May 2
Pastor Maldonado - May 3

Caterham:
Rodolfo Gonzalez - May 1
Vitaly Petrov - May 2
Heikki Kovalainen - May 3

Marussia:
Charles Pic - May 1, 2 (am)
Timo Glock - May 2 (pm), 3

HRT:
Not present