No
it tried to create a 200-line file with 20 tests I didn't ask for
thunspa on Hacker News
In the thread “After two years of vibecoding, I'm back to writing by hand”, replying to this comment
Got in the way: Generated 200-line file with 20 unrequested tests despite examples.
I work in Python as well and find Claude quite poor at writing proper tests, might be using it wrong. Just last week, I asked Opus to create a small integration test (with pre-existing examples) and it tried to create a 200-line file with 20 tests I didn't ask for. I am not sure why, but it kept trying to do that, although I made several attempts. …