Tests are assumed to be located in either the inst/tests/ or
tests/testthat directory (the latter is recommended).
See test_dir for the naming convention of test
scripts within one of those directories and
test_check for the folder structure conventions.
test(pkg = ".", filter = NULL, ...)uses_testthat(pkg = ".")
package description, can be path or package name. See
as.package for more information
If not NULL, only tests with file names matching this
regular expression will be executed. Matching will take on the file
name after it has been stripped of "test-" and ".R".
additional arguments passed to test_dir
If no testing infrastructure is present
(detected by the uses_testthat function), you'll be asked if you want
devtools to create it for you (in interactive sessions only). See
use_test for more details.