Modbat: A model-based API tester for event-driven systems

Software testing executes a system under test by giving it a series of inputs and comparing the out- puts to expected values. Model-based testing gen- erates test executions from an abstract model that describes the system behavior. Existing model-based approaches are not well- suited for event-driven or input/output-driven sys- tems. In particular, there is a need to support non- blocking I/O operations, or operations throwing ex- ceptions when communication is disrupted. We present a new tool called \Modbat", which is specialized for testing the application programming interface of systems where these issues are common.