Whenever I read a test method I want to understand it without having to jump around in the test class (or worse, in dependencies). If I want to know more, I should be able to "click" on one of the method calls and find out more.

I'll explain later why I want this, but first I'll show you how to get to this point.

Several years ago, when the PHP-FIG (PHP Framework Interop Group) created its first PSRs (PHP Standard Recommendations) they started some big changes in the PHP ecosystem. The standard for class auto-loading was created to go hand-in-hand with the then new package manager Composer. PSRs for coding standards were defined, which I'm sure helped a lot of teams to leave coding standard discussions behind. The old tabs versus spaces debate was forever settled and the jokes about it now feel quite outdated.

TLDR;

Rector - The Power of Automated Refactoring is now 100% completed

Tomas Votruba and I first met a couple of years ago at one of my favorite conferences; the Dutch PHP Conference in Amsterdam (so actually, we're very close to our anniversary, Tomas!). He presented Rector there and it was really inspiring. A year later I was working on a legacy migration problem: our team wanted to migrate from Doctrine ORM to "ORM-less", with handwritten mapping code, etc. I first tried Laminas Code, a code generation tool, but it lacked many features, and also the precision that I needed. Suddenly I recalled Rector, and decided to give it a try. After some experimenting, everything worked and I learned that this tool really is amazingly powerful!