Testing Modules

I haven’t see any examples of how to make unitary tests for modules.

Any advice?

What do you want to test in a module exactly?

He might have been wondering how to run fixtures and tests for all modules and the main application at once using one command. This is a topic I am on now as well.

Small example and a partial solution for fixtures: Yii2 - Load fixtures from different modules at once - Stack Overflow