Nothing
context("mutate ntile")
test_that("Error handling", {
library(data.table)
skip_if_not_installed("hutils")
DT <- data.table(x = 1:101)
expect_error(mutate_ntile(DT, n = 1:2),
regexp = "length(n) = 2",
fixed = TRUE)
expect_error(mutate_ntile(DT, n = "1"),
regexp = "type character",
fixed = TRUE)
expect_error(mutate_ntile(DT, n = 2.5),
regexp = "n != as.integer(n)",
fixed = TRUE)
expect_error(mutate_ntile(DT, n = 2),
regexp = "`col` is missing",
fixed = TRUE)
expect_error(mutate_ntile(DT, x, n = 17),
regexp = "no default column suffix is supported",
fixed = TRUE)
expect_error(mutate_ntile(DT, x, n = 10, new.col = "x", overwrite = FALSE),
regexp = "overwrite = TRUE",
fixed = TRUE)
expect_message(mutate_ntile(DT, x, n = 1, new.col = "Single1"),
regexp = "adding a column of 1s",
fixed = TRUE)
expect_error(mutate_ntile(DT, x, n = -1, new.col = "xy", overwrite = FALSE),
regexp = "must be a single positive whole number",
fixed = TRUE)
expect_error(mutate_ntile(as.list(DT), x, n = 2, new.col = "xy", overwrite = FALSE),
regexp = "must be a data.frame",
fixed = TRUE)
DT <- data.table(x = 1:10)
DT[5L, x := NA_integer_]
expect_equal(mutate_ntile(DT, "x", n = 2L, new.col = "x1", check.na = FALSE)[-5],
# Not guaranteed:
data.table(x = DT$x, x1 = hutils::weighted_ntile(DT$x, n = 2))[-5])
expect_error(mutate_ntile(DT, "x", n = 4L, new.col = "x1", check.na = TRUE),
regexp = "check.na = TRUE",
fixed = TRUE)
DT[1L, x := 3L]
expect_error(mutate_ntile(DT, "x", n = 4L, new.col = "x11", check.na = TRUE),
regexp = "check.na = TRUE",
fixed = TRUE)
})
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