It's been about a year or so now or less for me, but I really enjoyed working with Go's built-in tests. I had not experienced anything else like that before. It

It's been about a year or so now or less for me, but I really enjoyed working with Go's built-in tests. I had not experienced anything else like that before. It was truly incredible to see it as a first-class language CLI feature, but also that it worked alongside your file tree in a designated way. Now, anything less than such functionality is second or third-rate to me. I can give older languages a pass, but anything not having this moving forward is disappointing now.