context("is_one_na")
test_that("use", {
expect_true(is_one_na(NA))
expect_false(is_one_na(NULL))
expect_false(is_one_na(c(NA, NA)))
expect_false(is_one_na(c(NULL, NULL)))
expect_false(is_one_na("nonsense"))
expect_false(is_one_na(is_one_na))
expect_false(is_one_na(314))
expect_false(is_one_na(c(3, 1, 4)))
expect_false(is_one_na(Inf))
})
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