[WIP] Add test coverage report with gcovr

[JckXia]

No description provided.

[KevinEady]

I've been playing around with uploading coverage via the CI on my local fork. This PR ran this job, uploading this report and you can see its file explorer.

@JckXia , does this match with what you see locally when running gcovr?

[KevinEady]

Looking at the results in the above report, I'm not sure how accurate it is...? For example, it is reporting that ThreadSafeFunction::New(napi_env, const Function&, ResourceString, size_t, size_t) is not covered, but we have it in a test here.

[KevinEady]

With optimizations off, file explorer

[JckXia]

Hey @KevinEady! Thank you so much for taking a look into this. I ran this command:
gcovr --gcov-filter '.*\b(napi-inl.h)|(napi.h)\b' -r $(cd ../../ && pwd) --html --html-details -o ../../coverage/cxxcov_deets.html from test/build and got a coverage score of 94.2% for napi-inl.h. Though I assume this is with optimizations. Coverage data for napi.h seems to be missing, however.

On a side note, initially ThreadSafeFunction::New(napi_env, const Function&, ResourceString, size_t, size_t) was shown to be uncovered. However, it was shown as "covered" on a subsequent invocation of the command.

[KevinEady]

Hi @JckXia , Which compiler + version are you using?

[JckXia]

I am using g++ 11.3.0 on ubuntu

g++ (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[por1981]

_ No description provided. _

#1318 (comment)