As before I suggest you consider glancing at the CRAN results, always at
https://cran.r-project.org/web/checks/check_results_${packagename}.html
ie
https://cran.r-project.org/web/checks/check_results_ps.html
That shows twelve different tests on twelve different configurations all giving OK.
Dirk
--
https://dirk.eddelbuettel.com | @eddelbuettel | edd@debian.org