use_testthat sets up testing infrastructure, creating
tests/testthat.R and tests/testthat/, and
adding testthat to the suggested packages. use_test
creates tests/testthat/test-<name>.R and opens it for editing.
use_testthat()use_test(name = NULL, open = TRUE)
Test name. if NULL, and you're using RStudio, will use
the name of the file open in the source editor.
Should the new created file be opened in RStudio?