Extending BWDM to Support Various Types and Recursive Definitions in VDM++ Test Case Generation

Abstract

Generating test cases from VDM++ formal specifications, which help to eliminate ambiguities, is both time-consuming and labor-intensive. To solve this problem, our laboratory has developed BWDM, a tool for automatic test case generation from VDM++ specifications. However, the original BWDM only supports integer types and cannot handle test cases for operations and functions with recursive structures. To enhance BWDM's usefulness, this paper introduces extensions to address these limitations. The results confirm that the extended BWDM can reduce test case generation time compared to manual methods.