tests/testthat/test_format_yml.R

In rio: A Swiss-Army Knife for Data I/O

context("YAML imports/exports")
require("datasets")

test_that("Export to YAML", {
    skip_if_not_installed("yaml")
    expect_true(export(iris, "iris.yml") %in% dir())
})

test_that("Import from YAML", {
    skip_if_not_installed("yaml")
    expect_true(is.data.frame(import("iris.yml")))
    expect_identical(import("iris.yml")[, 1:4], iris[, 1:4])
    expect_identical(import("iris.yml")$Species, as.character(iris$Species))
})

unlink("iris.yml")