Testing of aspect-oriented programs: difficulties and lessons learned based on theoretical and practical experience. - Fabiano Cutigi Ferrari; Bruno Barbieri Pontes Cafeo; Thiago G. Levin; Jésus T. S. Lacerda; Otávio Augusto Lazzarini Lemos; José Carlos Maldonado; Paulo César Masiero (J. Braz. Comput. Soc., 2015)