An Automated Test Suite Generating Approach for Stateful Web Services

Web Services are the W3C-endorsed realization of the Service-Oriented Architecture (SOA). How to automatically generate effective test suites is a key problem in Web services testing. At present, the existing testing methods may cause the redundancy of test suite and the decrease of fault detecting ability. So this paper proposes an automated test suite generation approach based on EFSM (Extended Finite State Machine) model and operation interface contract. The operation tree model is firstly constructed according to the standard WSDL (Web Services Description Language) document. By appending semantic annotation to standard WSDL, the EFSM model is then built to generate operation sequences automatically. Finally, the optimal test suite can be obtained according to the operation interface contract. Moreover, the experiment shows that the proposed approach can generate reasonable test suites for stateful Web services effectively, while enhancing the fault detection ability and optimality on the size of existing approach.