tests/testthat/test_06_label.R

In eurostat: Tools for Eurostat Open Data

test_that("Variable names are labeled", {
  skip_on_cran()
  skip_if_offline()
  expect_equal(label_eurostat_vars(id = "nama_10_lp_ulc", x = "geo", lang = "en"), "Geopolitical entity (reporting)")
  expect_equal(label_eurostat_tables("nama_10_lp_ulc"), "Labour productivity and unit labour costs")

  expect_true(any(grepl(
    "_code",
    names(label_eurostat(
      get_eurostat("road_eqr_trams"),
      code = "geo"
    ))
  )))
})

test_that("Label ordering is ordered", {
  skip_on_cran()
  skip_if_offline()
  expect_equal(
    c(
      "European Union - 28 countries (2013-2020)",
      "Finland", "United States"
    ),
    levels(label_eurostat(factor(c("FI", "US", "EU28")),
      dic = "geo", eu_order = TRUE
    ))
  )
})


test_that("Countrycodes are labelled for factors", {
  skip_on_cran()
  skip_if_offline()
  expect_equal(
    levels(label_eurostat(factor(c("FI", "DE", "EU28"), c("FI", "DE", "EU28")),
      dic = "geo",
      countrycode = "country.name"
    )),
    c("Finland", "Germany", "EU28")
  )
  
  # sleep for a while to let the API rest
  Sys.sleep(5)
})

test_that("Countrycodes return NA for countrycode_nomatch = NA", {
  skip_on_cran()
  skip_if_offline()
  expect_equal(
    suppressWarnings(label_eurostat(c("FI", "DE", "EU28"),
      dic = "geo",
      countrycode = "country.name", countrycode_nomatch = NA
    )),
    c("Finland", "Germany", NA)
  )
})

test_that("Countrycodes use eurostat for missing", {
  skip_on_cran()
  skip_if_offline()
  expect_equal(
    suppressWarnings(label_eurostat(c("FI", "DE", "EU28"),
      dic = "geo",
      countrycode = "country.name", countrycode_nomatch = "eurostat"
    )),
    c("Finland", "Germany", "European Union - 28 countries (2013-2020)")
  )
})

test_that("custom_dic works", {
  skip_on_cran()
  skip_if_offline()
  expect_equal(
    label_eurostat(c("FI", "DE"), dic = "geo", custom_dic = c(DE = "Germany")),
    c("Finland", "Germany")
  )
})

test_that("wrong code (for this dataset) produces an error", {
  skip_on_cran()
  skip_if_offline()
  expect_error(
    label_eurostat(
      get_eurostat("road_eqr_trams"), code = "coef"
    )
  )
})