Test coverage, ignore specific files like app.module.ts or not?

[open marten]

Hey there, how do you usually approach testing some files that might not make sense be tested, for example, do you write unit tests for your module files?

[graceful palm]

Generally I ignore module files. I treat them as configuration. If I really need to test my factories, I extract them out to another file so I can import them directly

[open marten]

do you ignore in jest or add a basic spec file to test if the module file is being instantiated correctly?

[graceful palm]

I never instantiate my modules, that's something the framework handles, so I ignore it at the coverage collection level

[open marten]

@graceful palm do you have an example of a jest config file to share?

currently we do create .spec files for the modules just to not have those hitting the overall coverage, could also just ignore with the istanbul comment per file