Constraint-Based Heuristic On-line Test Generation from Non-deterministic I/O EFSMs
This work addresses the challenge of efficient test generation for non-deterministic systems, which is incremental as it builds on existing model-based testing methods.
The paper tackles the problem of on-line conformance testing for non-deterministic systems using I/O EFSM models, proposing a constraint-based heuristic approach (xRPT) that leverages off-line static reachability analysis to make decisions during testing, resulting in performance comparisons with existing strategies on examples of varying complexity.
We are investigating on-line model-based test generation from non-deterministic output-observable Input/Output Extended Finite State Machine (I/O EFSM) models of Systems Under Test (SUTs). We propose a novel constraint-based heuristic approach (Heuristic Reactive Planning Tester (xRPT)) for on-line conformance testing non-deterministic SUTs. An indicative feature of xRPT is the capability of making reasonable decisions for achieving the test goals in the on-line testing process by using the results of off-line bounded static reachability analysis based on the SUT model and test goal specification. We present xRPT in detail and make performance comparison with other existing search strategies and approaches on examples with varying complexity.