Nothing
context("Set object class")
library("datasets")
mtcars_tibble <- tibble::as_tibble(mtcars)
mtcars_datatable <- data.table::as.data.table(mtcars)
test_that("Set object class", {
expect_true(inherits(set_class(mtcars), "data.frame"))
expect_true(inherits(set_class(mtcars_tibble), "data.frame"))
expect_true(inherits(set_class(mtcars_datatable), "data.frame"))
expect_true(inherits(set_class(mtcars, class = "fakeclass"), "data.frame"))
expect_true(!"fakeclass" %in% class(set_class(mtcars, class = "fakeclass")))
})
test_that("Set object class as tibble", {
expect_true(inherits(set_class(mtcars, class = "tbl_df"), "tbl_df"))
expect_true(inherits(set_class(mtcars, class = "tibble"), "tbl_df"))
expect_true(inherits(set_class(mtcars_tibble, class = "tibble"), "tbl_df"))
})
test_that("Set object class as data.table", {
expect_true(inherits(set_class(mtcars, class = "data.table"), "data.table"))
export(mtcars, "mtcars.csv")
expect_true(inherits(import("mtcars.csv", data.table = TRUE), "data.table"))
expect_true(inherits(import("mtcars.csv", setclass = "data.table"), "data.table"))
expect_true(inherits(import("mtcars.csv", data.table = TRUE, setclass = "data.table"), "data.table"))
expect_warning(import("mtcars.csv", data.table = TRUE, setclass = "data.frame"))
unlink("mtcars.csv")
})
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