Symptom
nested directory revert flakes on Windows CI with assertion failure (not timeout).
- File:
packages/opencode/test/snapshot/snapshot.test.ts:216
- Seen: Attempt 3 of PR #8 validation run, 344ms duration
Context
Post PR #8 residual flake. 344ms is fast enough that it's not a timeout bound issue — the snapshot diff/track/revert assertion sometimes doesn't reflect the nested directory state on Windows.
Root cause to investigate
Likely a Windows filesystem-semantics issue: mkdir -p level1/level2/level3 + write file + revert may have timing or atomicity differences on NTFS vs POSIX. Possible causes:
Snapshot.diff() reads before all filesystem writes settle (Windows directory updates are not synchronous)- path separator normalization (
\ vs /) in the revert path
- temp dir cleanup race from a prior test in the same file
Worth running this test in isolation on Windows to see if it still flakes alone, vs only under concurrent load from other tests.
Symptom
nested directory revertflakes on Windows CI with assertion failure (not timeout).packages/opencode/test/snapshot/snapshot.test.ts:216Context
Post PR #8 residual flake. 344ms is fast enough that it's not a timeout bound issue — the snapshot diff/track/revert assertion sometimes doesn't reflect the nested directory state on Windows.
Root cause to investigate
Likely a Windows filesystem-semantics issue:
mkdir -p level1/level2/level3+ write file + revert may have timing or atomicity differences on NTFS vs POSIX. Possible causes:Snapshot.diff()reads before all filesystem writes settle (Windows directory updates are not synchronous)\vs/) in the revert pathWorth running this test in isolation on Windows to see if it still flakes alone, vs only under concurrent load from other tests.