No abstract

Testing is the primary software validation technique used by industry today, but remains ad hoc, error prone, and very expensive. A promising improvement is to automatically generate test cases from formal models of the system under test. We demonstrate how to automatically generate real-time conformance test cases from timed automata specifications. Specifically we demonstrate how to efficiently generate real-time test cases with optimal execution time i.e test cases that are the fastest possible to execute. Our technique allows time optimal test cases to be generated using manually formulated test purposes or generated automatically from various coverage criteria of the model.

Abstract. We present a technique for specifying coverage criteria and a method for generating test suites for systems whose behaviours can be described as extended finite state machines (EFSM). To specify coverage criteria we use observer automata with parameters, which monitor and accept traces that cover a given test criterion of an EFSM. The flexibility of the technique is demonstrated by specifying a number of well-known coverage criteria based on control-and data-flow information using observer automata with parameters. We also develop a method for generating test cases from coverage criteria specified as observers. It is based on transforming a given observer automata into a bitvector analysis problem that can be efficiently implemented as an extension to an existing state-space exploration such as, e.g. SPIN or Uppaal.