I think it depends on the situation. Unit test can be done by Claude code. I use it everyday. For E2E testing, browser-based tools are already pretty convenient. AI could definitely help by suggesting UX improvements, but setting up a smooth workflow is still tricky. You’d need to figure out things like where to put the AI’s feedback, when it should kick off testing, and who’s going to sort through all the suggestions it generates. But technically it can be useful and quality is good enough.