Nothing
test_that("length_levels_linter skips allowed usages", {
expect_lint("length(c(levels(x), 'a'))", NULL, length_levels_linter())
})
test_that("length_levels_linter blocks simple disallowed usages", {
expect_lint(
"2:length(levels(x))",
rex::rex("nlevels(x) is better than length(levels(x))."),
length_levels_linter()
)
})
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