Nothing
library(recipes)
library(textrecipes)
test_data <- tibble(text = c(
"I would not eat them here or there.",
"I would not eat them anywhere.",
"I would not eat green eggs and ham.",
"I do not like them, Sam-I-am."
))
rec <- recipe(~., data = test_data)
test_that("output is not a list", {
data <- tibble(a = rep("a", 20))
rec <- recipe(~., data = data) %>%
step_tokenize(a) %>%
step_untokenize(a)
obj <- rec %>%
prep()
expect_true(is.factor(bake(obj, new_data = NULL, a)[, 1, drop = TRUE]))
expect_equal(dim(tidy(rec, 2)), c(1, 3))
expect_equal(dim(tidy(obj, 2)), c(1, 3))
})
test_that("working as intended", {
rec <- rec %>%
step_tokenize(text) %>%
step_untokenize(text)
obj <- rec %>%
prep()
expect_equal(
bake(obj, new_data = NULL) %>% pull(text) %>% as.character(),
c(
"i would not eat them here or there",
"i would not eat them anywhere",
"i would not eat green eggs and ham",
"i do not like them sam i am"
)
)
})
test_that("working as intended", {
rec <- rec %>%
step_tokenize(text) %>%
step_untokenize(text, sep = "-")
obj <- rec %>%
prep()
expect_equal(
bake(obj, new_data = NULL) %>% pull(text) %>% as.character(),
c(
"i-would-not-eat-them-here-or-there",
"i-would-not-eat-them-anywhere",
"i-would-not-eat-green-eggs-and-ham",
"i-do-not-like-them-sam-i-am"
)
)
})
# Infrastructure ---------------------------------------------------------------
test_that("bake method errors when needed non-standard role columns are missing", {
tokenized_test_data <- recipe(~text, data = test_data) %>%
step_tokenize(text) %>%
prep() %>%
bake(new_data = NULL)
rec <- recipe(tokenized_test_data) %>%
update_role(text, new_role = "predictor") %>%
step_untokenize(text) %>%
update_role(text, new_role = "potato") %>%
update_role_requirements(role = "potato", bake = FALSE)
trained <- prep(rec, training = tokenized_test_data, verbose = FALSE)
expect_error(bake(trained, new_data = tokenized_test_data[, -1]),
class = "new_data_missing_column"
)
})
test_that("empty printing", {
rec <- recipe(mpg ~ ., mtcars)
rec <- step_untokenize(rec)
expect_snapshot(rec)
rec <- prep(rec, mtcars)
expect_snapshot(rec)
})
test_that("empty selection prep/bake is a no-op", {
rec1 <- recipe(mpg ~ ., mtcars)
rec2 <- step_untokenize(rec1)
rec1 <- prep(rec1, mtcars)
rec2 <- prep(rec2, mtcars)
baked1 <- bake(rec1, mtcars)
baked2 <- bake(rec2, mtcars)
expect_identical(baked1, baked1)
})
test_that("empty selection tidy method works", {
rec <- recipe(mpg ~ ., mtcars)
rec <- step_untokenize(rec)
expect <- tibble(terms = character(), value = character(), id = character())
expect_identical(tidy(rec, number = 1), expect)
rec <- prep(rec, mtcars)
expect_identical(tidy(rec, number = 1), expect)
})
test_that("printing", {
rec <- rec %>%
step_tokenize(text) %>%
step_untokenize(text)
expect_snapshot(print(rec))
expect_snapshot(prep(rec))
})
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.