Ask HN: Do your tests clear "If the tests pass, you cannot break the code" bar?

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[ARTICLE · art-55951] src=news.ycombinator.com ↗ pub=2026-07-12T05:08Z topic=developer-tools verified=true sentiment=· neutral

Ask HN: Do your tests clear "If the tests pass, you cannot break the code" bar?

A Hacker News user asks whether developers' test suites meet the standard that passing tests guarantees code cannot break, sharing that they have found AI tools to work flawlessly when this bar is met and that they invest more time in testing than any other part of the codebase.

read1 min views1 publishedJul 12, 2026

| |||||||||||| 1 point by | Why or why not? This is how I have found AI to be very powerful. If my tests pass, I know my code won't break. I spend more time on tests than any other part of the code-base. I am curious who else is building in this manner? I use the statement in the title because I feel that is the bar you have to meet to get the AI to work well, but once you meet that bar lately it has been working pretty flawlessly for me. | ||||||||||| |

source & further reading

news.ycombinator.com — original article Bitemporal provenance in agent memory: What did we believe, when, and why Ask HN: Claude Opus Nerfed Again? Ask HN: Has single-task focus become outdated in the AI era?