test_that("find_description_files() works", {
f <- kwb.dwd:::find_description_files
expect_error(f())
expect_output(result <- f(kwb.dwd:::ftp_path_daily_grids("evapo_p/any-file")))
expect_true("DESCRIPTION_gridsgermany_daily_evapo_p_en.pdf" %in% result)
})
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