Property-Based Testing with FsCheck by Deriving Properties from Business Rule Models

Abstract

Previous work has demonstrated that property-based testing can successfully be applied to web services. For example, it has been shown that JSON schemas can be used to automatically derive test-case generators for web forms. This paper presents a test-case generation approach for web services that takes business rule models as input for property-based testing. We parse these models to automatically derive generators for sequences of web service requests together with their required form data. Most of the work in this field applies property-based testing in the context of functional programming. Here, we define our properties in an object-oriented style in C# and its tool FsCheck. We apply our method to the business rule models of an industrial web service application in the automotive domain.