thisisnic commented on a change in pull request #11327:
URL: https://github.com/apache/arrow/pull/11327#discussion_r723013132
##########
File path: r/tests/testthat/test-csv.R
##########
@@ -329,3 +330,32 @@ test_that("Write a CSV file with invalid batch size", {
regexp = "batch_size not greater than 0"
)
})
+
+test_that("time mapping work as expected (ARROW-13624)", {
+ tbl <- tibble::tibble(
+ dt = as.POSIXct(c("2020-07-20 16:20", NA), tz = "UTC"),
+ time = c(hms::as_hms("16:20:00"), NA)
+ )
+ tf <- tempfile()
+ on.exit(unlink(tf))
+ write.csv(tbl, tf, row.names = FALSE)
+
+ df <- read_csv_arrow(tf,
+ col_names = c("dt", "time"),
+ col_types = "Tt",
+ skip = 1
+ )
+
+ expect_error(
+ read_csv_arrow(tf,
+ col_names = c("dt", "time"),
+ col_types = "tT", skip = 1
+ )
+ )
Review comment:
> I think the error message comes from the C++ library
Yep, that's right. I've run locally and pasted below. One of the ways you
can tell it's from the C++ library is that it starts `Error: Invalid:`
```
Error: Invalid: In CSV column #1: CSV conversion error to timestamp[s]:
invalid value '16:20:00'
/home/nic2/arrow/cpp/src/arrow/csv/converter.cc:492 decoder_.Decode(data,
size, quoted, &value)
/home/nic2/arrow/cpp/src/arrow/csv/parser.h:123 status
/home/nic2/arrow/cpp/src/arrow/csv/converter.cc:496
parser.VisitColumn(col_index, visit)
```
> The error message also references the CSV converter and parser using paths
on my machine, so probably not useful to include as we would have to skip the
test on CI.
Technically, this wouldn't necessarily be a problem as we could just supply
something like `regexp = "CSV conversion error to timestamp"` and not test for
the full error. However, as Neal says, it's a C++ error, so we probably don't
want to test for it as the point here is testing the R package.
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