This is exactly what we are doing with Mutahunter, AI is exceedingly good at writing edge case tests to test code and will only continue to get better at this. Check out Mutahunter here https://github.com/codeintegrity-ai/mutahunter
CrowdStrike today has shown why it's absolutely crucial to test code before deployment, say no to YOLO deployments with LLM powered software testing https://github.com/codeintegrity-ai/mutahunter