Test suite for node lib api

[Puellaquae]

I want to know if I want to implement some polyfill for node lib api, such as fs, whether here has some test suite for node lib api which can test my implemention?

[bnoordhuis]

The test/ directory in this repo?

[Puellaquae]

I have seen this directory, but most of it is about testing the internal implement of nodejs, not its lib api.

[bnoordhuis]

Some do but most test the expected behavior of the public API. A quick litmus test is whether it uses internalBinding() or anything from lib/internal.

Of the approximately 210 test/parallel/test-fs-* tests, only 10% test internal details.

[Puellaquae]

I see it. Thank you.