ci: ensure test failures are caught in coverage script and fix them#10286
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ChrisDryden merged 4 commits intouutils:mainfrom Jan 17, 2026
Merged
ci: ensure test failures are caught in coverage script and fix them#10286ChrisDryden merged 4 commits intouutils:mainfrom
ChrisDryden merged 4 commits intouutils:mainfrom
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The test assumed that the process always has exactly one TTY in its file descriptors. In CI environments or when running tests without a terminal attached, there is no controlling TTY, causing the test to fail with `assert_eq!(result.len(), 1)` when `result.len()` is 0.
- Add `set -o pipefail` to ensure test failures from cargo nextest are detected even when output is piped through grep - Look for llvm-profdata in the nightly toolchain (nightly-gnu) since that's what the script uses for coverage builds - Add helpful error message if llvm-profdata is not found
Add LANG=C environment variable to the FIFO tests alongside LC_ALL=C and LANGUAGE=C. The Fluent localization system checks multiple locale environment variables, and all three are needed to ensure English output in the test assertions.
The previous implementation checked if Errno::last() was UnknownErrno to determine success, but this is incorrect because errno is not cleared on success. A previous syscall could have set errno to a value like ENOENT, causing getsid to incorrectly report an error. The correct pattern is to check if the result is -1, which is what getsid returns on error per POSIX.
CodSpeed Performance ReportMerging this PR will degrade performance by 4.25%Comparing Summary
Performance Changes
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Jan 23, 2026
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instead of #10219