The new constructs in aspect-oriented programming can cause hazards to quality assurance. To detect aspect defects, this book presents a state-based approach to systematic modeling and testing of aspects. We extend finite state machines with notations for specifying incremental modification aspects, integration aspects, and combination aspects. We compose aspect models with their base class models through an explicit weaving mechanism. We adapt the round-trip path testing of object-oriented programs to the generation of test sequences from woven-state models. An incremental testing process is...