test_that("column_orderings() works", {
dt <- tibble(a = rep(0, 3),
b = a + 1,
c = rep(9, 3),
d = c(-1, 9, 9),
e = c(5, 9, 9),
f = c(-1, 10, 10),
g = c(0, 0, NA))
expect_snapshot(column_orderings(dt))
})
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