test_that('pobierz_wartosci_wskaznikow działa', {
src = polacz()
wynik = pobierz_wartosci_wskaznikow(src) %>%
filter(.data$rok == 2012 & .data$wskaznik == 'paou_sp_war') %>%
select(.data$lu) %>%
collect() %>%
summarize(lu_na = sum(.data$lu >= 0) - n())
expect_equal(wynik$lu_na, 0)
})
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