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LtWorf · 2026-06-20 · via LWN.net comments

Time saving cannot go one way only

Posted Jun 20, 2026 9:42 UTC (Sat) by LtWorf (subscriber, #124958)
In reply to: Time saving cannot go one way only by pbonzini
Parent article: The Software Freedom Conservancy's LLM-backed generative AI recommendations

We should really stop thinking that writing tests is easy. It's not.

Having many tests that all test the same thing is completely pointless. We need good tests, not many tests.

I have personally seen AI written test that was assigning a variable to 1, never re-assigning it and then testing in several places that the variable was still 1. And no, it was not a test to check if the CPU and RAM are working.

Write good tests instead of committing thousands of lines of useless asserts.