skip(message)skip_if_not(condition, message = deparse(substitute(condition)))
skip_if_not_installed(pkg)
skip_on_cran()
skip_on_os(os)
skip_on_travis()
skip_on_appveyor()
skip_on_bioc()
TRUE, will
skip the test."windows", "mac", "linux" and "solaris".skip_if_not() works like stopifnot, generating
a message automatically based on the first argument.skip_on_cran() skips tests on CRAN, using the NOT_CRAN
environment variable set by devtools.
skip_on_travis() skips tests on travis by inspecting the
TRAVIS environment variable.
skip_on_appveyor() skips tests on appveyor by inspecting the
APPVEYOR environment variable.
skip_on_bioc() skips tests on Bioconductor by inspecting the
BBS_HOME environment variable.
skip_if_not_installed() skips a tests if a package is not installed
(useful for suggested packages).
if (FALSE) skip("No internet connection")Run the code above in your browser using DataLab