Nothing
test_that("coalesce3 does coalesce", {
x1 <- c(1L, 1L, NA)
x2 <- c(1L, NA, 1L)
x3 <- c(NA, 1L, 1L)
expect_equal(coalesce3i(x1, x2, x3), c(1L, 1L, 1L))
})
test_that("coalesce3 evaluates lazily", {
expect_equal(coalesce3i(c(1L, NA), c(1L, 1L), stop("this won't happen")),
c(1L, 1L))
expect_equal(coalesce3i(0L), 0L)
expect_equal(coalesce3i(c(0L, NA)), c(0L, NA))
})
test_that("coalesce3 correctly gives attributes", {
o <- coalesce3i(c(1L, 1L, NA), c(1L, 1L, NA), integer(3))
expect_false(anyNA3i(o))
x <- coalesce3i(c(1L, 1L, NA), c(1L, 1L, NA))
expect_true(anyNA3i(x))
y <- coalesce3i(c(1L, 1L, NA), c(1L, 1L, NA))
expect_true(anyNA3i(y))
y <- coalesce3i(c(1L, 1L, NA), c(1L, 1L, NA), c(NA, NA, NA_integer_))
expect_true(anyNA3i(y))
})
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