[R-pkg-devel] Examples taking too long depend on object that takes a while to generate

[Duncan Murdoch]

On 13/09/2022 11:21 p.m., John Harrold wrote:
> Hello,
> 
> I'm working on submitting a new package. I've created examples for each of
> the functions. Most of these functions depend on an R object that uses
> architecture-specific compiled code. To create that object can take between
> 10-20 seconds. The function that creates it will cache it in the tempdir().
> So the first example that uses that object will take more than the 5
> seconds allowed by CRAN. If I wrap that example in donttest, then the next
> function that uses it will exceed the 5 second limit, and on. I submitted
> the package with all of these examples wrapped in donttest, but that got me
> dinged :). So I'm trying to come up with a solution and I'd appreciate any
> help here.
> 
> Is there some way to build an object before tests are run?

You could build it on your system, and save it in the data directory.

If it really needs to depend on the current architecture, you could 
build it at install time.

Duncan Murdoch