Model-based functional conformance testing of Web services operating on persistent data

Abstract

We propose a model based approach to functional conformance test generation for web services which operate in the presence of persistent data. Typically, web services are described in a standard notation called Web Services Description Language (WSDL). Unfortunately, WSDL standard does not allow behavioral specification (such as pre- and postconditions)of web services in the presence of persistent data. New standards which remedy this situation are being proposed (such as WSDL-S). In this paper, we propose the use of existing test generation techniques based on Extended Finite State Machine (EFSM) specification to address the generation of functional conformance testes for web services which operate on persistent data. The novel contribution of this paper is an algorithm which translates a WSDL-S behavioral specification of operations of a web service into an equivalent EFSM representation which can be exploited to generate an effective set of test cases. Copyright 2006 ACM.