[Automated-testing] Apply QA tests on a specific layer

[Markus Boos]

Hi automated testing fellows

I'd like to increase the level of testing in our own layer without inherit a specific class in a recipe. Like enforcing QA checks on our own layer.
For example check for compiler warnings in our compiled modules. 

I didn't found a hint to achieve this in the yocto docs nor in the mailing list archive nor on G.

Is this a stupid goal to achieve? If yes, why?
Did anybody ever tried to achieve something similar? If yes, how?

Thank you for your answers.

Kind regards
Markus