Four days ago:
"Webber, who announced his move to the WEC this past summer and closed out his F1 career with a runner-up in Brazil last month, was given permission to do the test by Red Bull, which still has him under contract until Jan. 1, 2014.
“My first day in this fascinating project was an intense experience for me,” said Webber after his run at the Autodromo Internacional do Algarve in Portugal. “I would like to thank Red Bull Racing for giving me the chance to join the project so early."
The article:
http://motorsportstalk.nbcsports.com...portugal-test/