An Application of Software Fault Injection for Assessment of Quality of Test Sets for Business Processes Orchestrating Web-Services

Abstract

The paper presents an experiment of the application of software fault injection to assess quality of test sets for business processes orchestrating web-services. The mutation testing, usually used to this end, suffers from high computational costs of generating and running mutants. In contrast to mutation testing, faults injection can be performed at a run-time. Run-time changes are introduced by a Software Fault Injector for BPEL Processes (SFIBP). SFIBP is implemented as a special service that manipulates invocations of webservices and values of their internal variables. As for time requirements, the experiment proved high superiority of the application of the SFIBP over the mutation testing.