# context("YYYY")
#
# test_that("RY alone", {
# x <- RY(2011:2014)
# expect_equal(length(x), 4)
# expect_is(x, c("YYYY", "vctrs_rcrd", "vctrs_vctr"))
# expect_equivalent(as.character(x), paste0("RY", 2011:2014))
# })
#
# test_that("RY in tibble", {
#
# test_data <-
# tibble::tibble(
# year = RY(c(2011, 2011, 2012, 2012)),
# foo = 1:4,
# bar = c("A", "A", "B", "B"))
#
# grouped <-
# dplyr::group_by(test_data, year, bar)
#
# expect_s3_class(
# grouped$year,
# c("RY", "YYYY"))
#
# summarised <-
# dplyr::summarise(
# grouped, foo = sum(foo))
#
# expect_s3_class(
# summarised$year,
# c("RY", "YYYY"))
#
# })
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