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It seems that we need to use
ErlNifBinary
when setting binary type options. It saves one copy in thestd::string
and also fixes a bug I found when doing some mock tests.I also added these mock tests in this PR, and they will only run when env var
CI
exists or is explicitly included (although I'm not sure if we would want these mock tests in this repo). If we don't need these mock tests in the repo I'll remove the corresponding commit. :)