Nothing
test_that("messagef", {
expect_message(messagef("xxx%ixxx", 123), "xxx123xxx")
})
test_that("catf", {
expect_output(catf("xxx%ixxx", 123), "xxx123xxx")
})
test_that("catf into file", {
fn = tempfile()
catf("xxx%ixxx", 123, file = fn)
s = readLines(fn)
expect_equal(s, "xxx123xxx")
file.remove(fn)
})
test_that("warningf", {
expect_warning(warningf("xxx%ixxx", 123), "xxx123xxx")
f = function() warningf("123")
# "Warning: " not caught by gives_warning
expect_warning(f(), "123")
})
test_that("stopf", {
expect_error(stopf("xxx%ixxx", 123), "xxx123xxx")
f = function() stopf("123")
expect_error(f(), "123")
})
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