Testa made her film debut in "Going in Style" (1979), and has appeared in numerous movie and television roles since, including Sophia in the 2003 sitcom "Whoopi", Zia Maria Luisa in the 2014 film "Big Stone Gap", and Sister Clare in the 2004 film adaptation of "Tony n' Tina's Wedding". She also appeared in such films as "The Business of Strangers" (2001), "Stay" (2005), "Eat Pray Love" (2010), "The Bounty Hunter" (2010) and the TV series "Law & Order, Whoopi's Littleburg, 2 Broke Girls, Smash, White Collar, Cosby, Sex and the City", and "Life on Mars".