jonkeane commented on code in PR #46873:
URL: https://github.com/apache/arrow/pull/46873#discussion_r2159742105
##########
r/tests/testthat/test-Array.R:
##########
@@ -1397,3 +1397,9 @@ test_that("Can convert R integer/double to decimal
(ARROW-11631)", {
"Conversion to decimal from non-integer/double"
)
})
+
+test_that("Array handles sub-day precision Date correctly", {
+ d <- as.Date(-0.1)
+ arr <- arrow_array(d)
+ expect_equal(as.vector(arr), as.Date("1969-12-31"))
+})
Review Comment:
Is it important that the sub-day precision is also a negative here? Would
`as.Date(0.1)` exhibit the same issue?
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