library(testthat)
library(rsample)
library(purrr)
dat1 <- data.frame(a = 1:10, b = letters[1:10])
test_that('Loooooo', {
loo1 <- loo_cv(dat1)
expect_equal(nrow(loo1), nrow(dat1))
same_data <-
map_lgl(loo1$splits, function(x)
all.equal(x$data, dat1))
expect_true(all(same_data))
holdouts <-
map_lgl(loo1$splits, function(x)
length(x$out_id) == 1)
expect_true(all(holdouts))
retained <-
map_lgl(loo1$splits, function(x)
length(x$in_id) == (nrow(dat1) - 1))
expect_true(all(retained))
})
test_that('printing', {
expect_output(print(loo_cv(dat1)))
})
test_that('rsplit labels', {
rs <- loo_cv(mtcars)
all_labs <- map_df(rs$splits, labels)
original_id <- rs[, grepl("^id", names(rs))]
expect_equal(all_labs, original_id)
})
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