An Automated Approach to System Testing Based on Scenarios and Operations Contracts

Scenarios are an important mechanism for requirements specification and can be used to generate test paths at the requirements level. UML 2.0 provides a rich set of models for specifying scenarios, however, little work has focused on using UML 2.0 models for system testing. We propose a novel testing approach that uses UML 2.0 models for automated generation of test paths. This is done by enhancing the information with contracts and then formalizing it into a transition system. Test paths are then generated by path traversal of the transition system. The proposed approach is fully automatable and supported by a prototype tool, thus providing a platform for reducing the gap between high level scenarios and system testing. Keywords Scenarios, Testing, UML, Contracts.