Testi also continued to work in poliziotteschi genre films in the 1970s as well as a few gialli, and gained infamy for his publicised relationships with actresses Ursula Andress and Charlotte Rampling.

Since 2006 he has been involved in Italian politics, running for Mayor of Verona as a member of Cattolici Liberali Cristiani.

[3] Demofilo Fidani gave Testi his first on-screen role in his film Straniero... fatti il segno della croce!

[3] Curti noted that Fidani had a "notorious habit of embellishing his own career and filmography" and that the story may not be true.

[4] Testi fell out of popularity in film by the 1980s showing up in Gianfranco Baldanello's thriller The Uranium Conspiracy and Silvio Amadio's drama A Gun for a Cop  [it].

[4] From the eighties onward, Testi predominantly worked in television, such as Castellari's mini-series The Return of Sandokan where he replaced Philippe Leroy as Yanez.

[6] Testi was known to be in relationships with several actresses, including Edwige Fenech, Charlotte Rampling, Lynne Frederick,[7] Ursula Andress and Jean Seberg.

[3] His longest relationship was with Spanish actress Lola Navarro, whom he began dating in the late 1970s and had three children with.