[ARROW-15041] [R] Flaky BOM removal test

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.0.0
• Component/s: R
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/30558
• Assignee: Jonathan Keane
• Reporter: Antoine Pitrou
• Created: 09/Dec/21 09:19
• Updated: 11/Jan/23 08:44
• Resolved: 09/Dec/21 15:36

Description

The test introduced in ARROW-14644 appears to be flaky.
See example failed runs:
https://github.com/apache/arrow/runs/4466790381?check_suite_focus=true#step:8:21277
https://github.com/apache/arrow/runs/4463832536?check_suite_focus=true#step:9:22039

── Failure (test-dataset-csv.R:297:3): open_dataset() deals with BOMs (byte-order-marks) correctly ──
`object` (`actual`) not equal to `expected` (`expected`).

actual vs expected
                a b
- actual[1, ]   3 4
+ expected[1, ] 1 2
- actual[2, ]   1 2
+ expected[2, ] 3 4

  `actual$a`: 3 1
`expected$a`: 1 3

  `actual$b`: 4 2
`expected$b`: 2 4

Issue Links

• is caused by: ARROW-14644 [C++] open_dataset doesn't ignore BOM in csv file
• links to: GitHub Pull Request #11917