Efficient Regression Testing with Diagnostic Simulation

This document is a technical report that outlines the necessity and methodology of regression testing in the context of software-defined vehicles. It describes how the increasing complexity of electronic and electrical networking in these vehicles necessitates constant updates to diagnostic software. The report details the challenges faced due to the vast number of vehicle variants and software configurations, which complicates the testing process. It emphasizes the importance of achieving maximum test coverage to ensure software quality and reliability. The document presents a solution involving diagnostic simulation, which allows for the simulation of electronic control units and vehicle communication. This approach enables comprehensive testing without the need for all physical vehicle variants, thereby reducing costs and improving efficiency. The report concludes by highlighting the benefits of integrating diagnostic simulation into regression testing, including enhanced software quality and reduced troubleshooting efforts, ultimately facilitating faster rollouts of new software.