rok commented on a change in pull request #11105:
URL: https://github.com/apache/arrow/pull/11105#discussion_r710887284
##########
File path: r/tests/testthat/test-dplyr-string-functions.R
##########
@@ -719,6 +719,40 @@ test_that("errors in strptime", {
)
})
+test_that("strftime", {
+ skip_on_os("windows") # https://issues.apache.org/jira/browse/ARROW-13168
+
+ # TODO: consider reevaluating this workaround after ARROW-12980
+ withr::local_timezone("UTC")
+ times <- tibble(x = c(lubridate::ymd_hms("2018-10-07 19:04:05"), NA))
+
+ formats = c("%a", "%A", "%w", "%d", "%b", "%B", "%m", "%y", "%Y", "%H",
+ "%I", "%p", "%M", "%z", "%Z", "%j", "%U", "%W", "%c", "%x",
+ "%X", "%%", "%G", "%V", "%u")
+
+ for (format in formats) {
+ expect_dplyr_equal(
+ input %>%
+ mutate(x = strftime(x, format = format)) %>%
+ collect(),
+ times
+ )
+
+ expect_dplyr_equal(
+ input %>%
+ mutate(x = strftime(x, format = format, usetz = TRUE)) %>%
+ collect(),
+ times
+ )
+
+ x <- Expression$field_ref("x")
+ expect_error(
+ nse_funcs$strftime(x, format = format, tz="Mars/Mariner_Valley"),
+ "tz argument not supported by Arrow"
+ )
+ }
+})
Review comment:
Oh yeah indeed. We can also just do a single string with all the flags :)
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