I have a couple of packages (‘fiery’ and ‘reqres') that uses a mock of a rook
request for their examples. The mock is an R6 object containing a
rawConnection, along with a finalizer that closes this connection when the
object is removed. So far so good. I’ve recently been getting CRAN errors due
to the rawConnection not being closed in examples
> cleanEx()
Error: connections left open:
content (rawConnection)
and the only way to remove this is by removing the objects and calling gc() as
part of the example code. While it is possible to hide all that inside a
\dontshow{} block, it appears to me that it would be better if cleanEx() did a
cleaning of the environment along with a single gc call prior to performing any
checks on the end state. Is this something you would consider?
best
Thomas Lin Pedersen
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