EBLT — Blueprints testing library using fuzz testing

Low-code and no-code paradigms are accessible, but lack mature testing methods. This gap needs to be addressed as such applications provide a way for stakeholders to interact with or define the requirements of applications in video games, digital twins, and simulations. Blueprints are an example of this paradigm, enabling a visual definition of functionality or requirements. We proposed an open-source tool that uses fuzz testing and applied it to Unreal Engine blueprints. Tests triggered by stakeholder changes are automatically generated, offering support for tuning parameters and optimizing testing time.