nealrichardson commented on a change in pull request #8150:
URL: https://github.com/apache/arrow/pull/8150#discussion_r487119708
##########
File path: r/tests/testthat/test-dataset.R
##########
@@ -890,6 +890,7 @@ test_that("Dataset writing: from data.frame", {
select(string = chr, integer = int) %>%
filter(integer > 6 & integer < 11) %>%
collect() %>%
+ ungroup() %>%
Review comment:
This isn't desirable because for `write_dataset()`, `group_by` is used
to convey which columns to partition the dataset on. So I think there needs to
be an `ungroup()` somewhere around L71 in write-dataset.R
##########
File path: r/tests/testthat/test-metadata.R
##########
@@ -124,5 +125,11 @@ test_that("haven types roundtrip via feather", {
test_that("Date/time type roundtrip", {
rb <- record_batch(example_with_times)
expect_is(rb$schema$posixlt$type, "StructType")
- expect_identical(as.data.frame(rb), example_with_times)
+ expect_equal(as.data.frame(rb), example_with_times)
+})
+
+test_that("metadata keeps attribute of top level data frame", {
+ df <- structure(data.frame(x = 1, y = 2), foo = "bar")
+ tab <- Table$create(df)
+ expect_equal(attr(as.data.frame(tab), "foo"), "bar")
Review comment:
why not `expect_identical(as.data.frame(tab), df)`?
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