University of Twente, Centre for Telematics and Information Technology (CTIT)
Abstract
Component based testing concerns the integration of components which have already been tested separately. We show that, with certain restrictions, the ioco-test theory for conformance testing is suitable for component based testing, in the sense that the integration of fully conformant components is guaranteed to be correct. As a consequence, there is no need to re-test the integrated system for conformance. This result is also relevant for testing in context, since it implies that every failure of a system embedded in a test context can be reduced to a fault of the system itself