[Rd] R test coverage

[Lluís Revilla]

Hi all,

I recently proposed a change in R that has led to the addition of new code
to the R source code.

The code added, as far as I know, has no tests and it might affect many
packages in CRAN.
I was wondering if adding a test would be helpful or it is already covered
by some other test.
Which brought me to the question: what is the coverage of R checks
(check-devel)?

My searches in the mailing list or other places didn't return anything
close to it.
But I am curious if someone has already done this and how.

Many thanks,

Lluís

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