PSR-12 formatting

I have experienced some issues with PSR-formatting (PSR-12) in netbeans  - I think the examples on the PSR-pages can be used in tests:

https://www.php-fig.org/psr/psr-12/

The issue is when you work on a project with different IDE's which supports the standard, and you format your code, it will change some lines back and forth in the commits. I think it is most relevant for open source projects.