Nothing
test_that("Error if names exist but do not match", {
x <- matrix(1:10, nrow = 2, dimnames = list(c("a", "b"), NULL))
y <- stats::setNames(1:2, c("a", "c"))
expect_error(check_names(x, y), "must match")
y <- 1:2
expect_silent(check_names(x, y))
})
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