There and Back Again: Round-Trip Testing in PHP Most of the work in a unit test is not calling the function. It is knowing what the function is supposed to return. You call it, you get a value, and now you type the expected value by hand and pray you did the arithmetic in your […]
02
Jul
Jul
Types and Tests: Not Rivals, Just Working Different Shifts A common source of confusion in PHP development is the relationship between static analysis and unit testing. Are they redundant? Does adding types mean fewer tests? Does a comprehensive test suite make a type checker unnecessary? No to all three. They cover different grounds. The interesting […]
28
May
May
Testing regex with reverse generation I had a regex once that passed 37 hand-written tests. First fuzz run found a crash in 200ms. That’s what this post is about: testing regex with reverse generation using pointybeard/reverse-regex to generate strings guaranteed to match a regex, so you can test your validation code against inputs you didn’t […]