Testing Best Practices: The Ultimate Guide

Really enjoyed how you emphasized behavioral testing over implementation details, especially the reminder not to over-test language features. That clarity around intention is something we don’t see highlighted often enough.

That said, I’ve noticed teams (like OpenForge ) lean into a hybrid approach where some implementation-level tests are still used to document edge cases or complex workflows. I wonder if dismissing those entirely could create blind spots, especially in legacy systems where business logic is often embedded in “simple” code.

How do you strike a balance between keeping tests clean and still covering nuanced technical debt?

Thank you for the article, there is a typo in this code:

// Assert self::assertSame('username', $dto->username; self::assertSame('password', $dto->password;

you miss the closing bracket.