We are very excited to announce that testthat 2.0.0 is now available on CRAN! Testthat makes it easy to turn your existing informal tests into formal automated tests that you can rerun quickly and easily. testthat is the most popular unit testing package for R, and is used by over 2,600 CRAN packages and by many more Github packages. Learn more about unit testing at http://r-pkgs.had.co.nz/tests.html.
This is a companion discussion topic for the original entry at https://www.tidyverse.org/blog/2017/12/testthat-2-0-0/