GH-35425: [R] Tests failures on R < 4.0 due to data.frame conversion (#35432)

thisisnic · web-flow · commit 11780b96d5ac · 2023-05-11T09:16:56.000+02:00
* Closes: #35425 Authored-by: Nic Crane <thisisnic@gmail.com> Signed-off-by: Nic Crane <thisisnic@gmail.com>
diff --git a/r/tests/testthat/test-dataset-csv.R b/r/tests/testthat/test-dataset-csv.R
@@ -91,7 +91,7 @@ test_that("CSV scan options", {
   sb$FragmentScanOptions(options)
 
   tab <- sb$Finish()$ToTable()
-  expect_equal_data_frame(tab, data.frame(chr = c("foo", NA)))
+  expect_equal_data_frame(tab, data.frame(chr = c("foo", NA), stringsAsFactors = FALSE))
 
   # Set default convert options in CsvFileFormat
   csv_format <- CsvFileFormat$create(
