Specification-based class testing with ClassBench

In this paper, we present an approach that combines specification-based testing and class testing. In particular, we provide a method for generating Finite State Machines (FSMs) from formal, object-oriented specifications, and use the ClassBench testing framework to build a test suite from those formally generated FSMs. We briefly outline our approach and focus on one step in the approach; the transformation of the formally derived FSM into a ClassBench testgraph, which is used by ClassBench to drive the test execution. We illustrate the method with a simple bounded queue class, and discuss the application of the method to a larger example, which is a simplified model of a process scheduling system.