filter If not NULL , only tests with file names matching this regular expression will be executed. Matching is performed on the file name after it's stripped of "test-" and ".R" .
but according to hadley this filter option is not used by design:
I could not find documentation on the subject - strangely, R CMD honours the filter.
What is the recommened way to skip a group of files without putting skip everywhere? For example, I have a set of tests that run against a real API server, and a set that uses mocks.