context("mlr_resamplings")
test_that("mlr_resamplings", {
expect_dictionary(mlr_resamplings, min_items = 1L)
keys = mlr_resamplings$keys()
task = tsk("iris")
for (key in keys) {
r = rsmp(key)
expect_resampling(r) # construction works
expect_false(r$is_instantiated)
if (key == "custom") {
ret = r$instantiate(task, list(1:3), list(5:9))
} else {
ret = r$instantiate(task)
}
expect_r6(ret, "Resampling")
expect_true(r$is_instantiated)
expect_resampling(r)
}
})
test_that("mlr_resamplings: sugar", {
r = rsmp("cv", id = "cv3", folds = 3L)
expect_equal(r$id, "cv3")
expect_equal(r$param_set$values$folds, 3L)
})
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