Ask HN: Do your tests clear the 'If tests pass, code won't break' bar?

In the realm of software engineering, testing is crucial for ensuring code stability. A user shares their experience with AI in testing, emphasizing that if their tests pass, they feel confident that their code won't break. They spend significant time on tests, and they are curious about how others approach testing in their projects. Do you believe that passing tests are a reliable indicator of code stability? How do you integrate testing into your development workflow?