r-cran-testthat 2.0.0-2build1 (arm64 binary) in ubuntu cosmic

 Testthat code. Tools to make testing fun.
 .
 Software testing is important, but, in part because it is frustrating
 and boring, many developers avoid it. 'testthat' is a testing framework for R
 that is easy learn and use, and integrates with your existing 'workflow'.