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OK. Thank you. I'm always nervous about closing and re-opening a tempfile() but
I suppose it is safe.
Should I interpret your response as saying that creating and mutating files in
"tests/testthat/data" is not possible on CRAN?
Thank you,
- Dave
> On Apr 23, 2019, at 10:16 AM, Iñaki Ucar <iu...@fedoraproject.org> wrote:
>
> On Tue, 23 Apr 2019 at 15:57, David Blodgett via R-package-devel
> <r-package-devel@r-project.org> wrote:
>>
>> I'm working on some CRAN Debian test failures
>> (https://win-builder.r-project.org/incoming_pretest/ncdfgeom_1.0.0_20190423_031452/).
>> The tests all pass on rhub Debian, CRAN windows, local OSX, and Travis
>> Ubuntu. The tests that are failing on CRAN Debian are ones where I check
>> that changes got made to an existing file that is modified in place by my
>> package code.
>>
>> Are there nuances of the CRAN environment that prevent a `tempfile()` file
>> being created then modified at run time? What is a suggested best practice
>> for such a test?
>
> According to the current master branch, the test that fails is not
> using tempfile(), but "nc_file<-'data/test_output.nc'". Just change
> that line with a call to tempfile and the test should pass.
>
> --
> Iñaki Úcar
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