Phpunit using fixtures?

Question

PHP

How to properly include fixture files in tests? As I understand fixtures, if I understand correctly, let's say - the expected value or the original value for comparison in tests. Everything in the project is connected via autoload composer. How to cut them to the tests correctly? via require? It’s just that at the moment I’m only testing functions without classes and, accordingly, store variable values ​​​​in fixtures. Arrays, Jasons, etc. Or how is it possible through autoload files or something else?))

Answer 1

unit tests don't need fixtures