dragosmg commented on a change in pull request #12240:
URL: https://github.com/apache/arrow/pull/12240#discussion_r840515303
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File path: r/tests/testthat/test-Array.R
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@@ -260,18 +260,30 @@ test_that("array supports POSIXct (ARROW-3340)", {
expect_array_roundtrip(times2, timestamp("us", "US/Eastern"))
})
-test_that("array supports POSIXct without timezone", {
- # Make sure timezone is not set
+test_that("array uses local timezone for POSIXct without timezone", {
withr::with_envvar(c(TZ = ""), {
Review comment:
It is erroring with `Error in assign(".sys.timezone", old, envir =
base_env) : cannot change value of locked binding for '.sys.timezone'`.
I think I am bumping into some cacheing issue.
> As from R 3.5.0, when a time zone location is first found in a session,
its value is cached in object .sys.timezone in the base environment.
AFAICT the caching works (as in it manages to unlock the `.sys.timezone`
object, assign to it and then lock it again). The issue surfaces when
we`return(tz)`.
The ` withr::with_timezone(NA` chunk fails with the same error message when
ran interactively.
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