test_stdin_pipe_fifo1 flakes with "weird file" on MacOS
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- Rust
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Description
Something on MacOS causes stat(1) to regularly fail to identify pipes, for some reason. I suspect yet another filesystem-race in the test setup, but don't understand yet what's going on.
Just to hammer home that this is a real issue, here are some PRs where I complained about it:
- https://github.com/uutils/coreutils/pull/6020#issuecomment-1973015761
- https://github.com/uutils/coreutils/pull/6142#issuecomment-2027472468
… plus all the times it flaked for other people.
Could someone with a Mac please try various "sleeps" to reproduce the issue, ideally fix it?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the test named test_stdin_pipe_fifo1 and reproduce it on macOS, trying the suggested sleeps around its setup. Investigate why stat(1) intermittently fails to identify the pipe and verify the test no longer flakes. Done means the test reliably recognizes the pipe on macOS.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- macos, rust
- Domain
- cli, operating-systems, testing-qa
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100