[ARROW-15119] [C++] Some filesystems may allow reading directories

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/30629
• Assignee: Carlos O'Ryan
• Reporter: Carlos O'Ryan
• Created: 15/Dec/21 16:46
• Updated: 11/Jan/23 08:44
• Resolved: 20/Dec/21 12:03

Description

The generic filesystem tests assert that reading a directory should fail. If directories are implemented as described in ARROW-15114 this would be expensive to implement (at least in the near future), as it would require two roundtrips to the service to fetch the object metadata.

I would rather change the generic tests to allow reading directories, and if we find a cheaper way to fix this later we can restore the tests.

Issue Links

• is a child of: ARROW-14924 [C++] Implement generic filesystem tests for GCS
• links to: GitHub Pull Request #11962