His courses cover a wide range, including Experimental Film, Science Fiction, Genre and Narration, Action Cinema and Auteur Directors. Since 2002, he has taught his Chinese Cinemas course in both Hong Kong and Toronto. Testa has organized several conferences and film festivals with the Asian Institute (Munk Centre, UofT). He has published journal articles and anthologized essays on diverse film topics. He is the author of Back and Forth: Early Cinema and the Avant-Garde and co-editor of Pier Paolo Pasolini in Contemporary Perspective.