thisisnic commented on code in PR #35473:
URL: https://github.com/apache/arrow/pull/35473#discussion_r1192930273
##########
r/tests/testthat/test-dplyr-mutate.R:
##########
@@ -652,3 +672,41 @@ test_that("Can use across() within transmute()", {
example_data
)
})
+
+test_that("across() does not select grouping variables within mutate()", {
+ compare_dplyr_binding(
+ .input %>%
+ group_by(chr) %>%
+ mutate(across(everything(), round)) %>%
+ collect(),
+ example_data %>%
+ select(int, dbl, chr)
Review Comment:
nit: it's more skimmable when the `tbl` parameter to
`compare_dplyr_binding()` is just a table with no modification. Please could
you move the `select()` to the `expr` parameter code instead?
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