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test(usage): state the filter index availability contract Windows can reach - #8440
Two filtered usage index availability cases failed on Windows in dev batch 42543407433 (windows 4/11). Both set up a state Windows cannot produce. The product code is correct; the tests now state what Windows can check.
an unwritable home degrades to the streaming read makes the home unwritable with chmod 0o555. On Windows that call does not restrict a directory, so the index was built normally and filterIndex was present. The test is now skipped on win32. The fallback it checks is the catch-all in readUsageFilterCandidates (any index-side error returns null), with no platform branch. The new vanishing-after-refresh case reaches that catch-all on every OS; the contention and foreign-file cases cover the busy and explicit fallbacks.
a projection that vanishes before the read is not recreated deletes the database from the afterPublish hook while the writer connection still has it open. Windows refuses to delete a file SQLite holds open, so the file stayed and existsSync was true. That case now runs on POSIX only, where deleting an open file is possible. A new case, a projection that vanishes after the refresh closed it is not recreated by the read, deletes the file from afterRefresh, after the refresh connection has closed. Every platform can reach that state, and the read still has to answer from the ledger without recreating the file. Both cases share one helper.
Verification
bun test tests/usage/usage-filter-index.test.ts (macOS, isolated HOME): 46 pass, 0 fail.
The shared helper now asserts the hook actually removed an existing projection, so a streaming fallback cannot pass the case without the hook running; the removal retries EBUSY/EPERM briefly for a scanner holding the just-closed file on Windows.
Non-vacuous: with openIndexForRead mutated to open with create: true, the new afterRefresh case fails (existsSync true). Mutation reverted.
bun run typecheck: pass.
NOT RUN: Windows. PRs cannot run the Windows lane; the proof is windows 4/11 in the next dev batch.
Checklist
Scope stays focused and avoids unrelated cleanup.
Docs or release notes were updated when needed. (test-only)
Security-sensitive changes were reviewed for secrets, auth, and unsafe defaults. (test-only)
Summary by CodeRabbit
Tests
Updated platform-specific coverage for unwritable home directories and projection removal, including removal after a refresh.
Added coverage confirming passive reads fall back to streaming when published data is unavailable.
Added coverage ensuring unrelated database files are not mistaken for valid indexed data.
No actionable comments were generated in the recent review.
Walkthrough
The usage index tests now skip selected permission and before-read removal cases on Windows. They use a shared helper for projection removal and add passive-read checks for missing index rows and foreign SQLite files.
Changes: Usage index test coverage
Layer / File(s)
Summary
Adjust platform-specific test cases tests/usage/usage-filter-index.test.ts
The unwritable-home test and the before-read removal case are skipped on Windows. A shared helper retries removal on EBUSY or EPERM, verifies the index was removed, and supports removal after refresh on all platforms.
Test passive-read index availability tests/usage/usage-filter-index.test.ts
Passive-read tests check that missing rows in a published generation lead to a streaming result and that a foreign SQLite file with coincidental metadata is not adopted.
lidge-jun/opencodex#8429: It changes overlapping usage index tests for Windows permission and projection-removal behavior.
lidge-jun/opencodex#8439: It adds overlapping passive-read availability tests, including missing-row fallback and foreign SQLite file handling.
lidge-jun/opencodex#8391: It introduces the usage index behavior exercised by these tests, including fallback when the index is unavailable.
Merge Risk: Minimal · up to a0b87
The platform-specific test adjustments preserve meaningful disappearance coverage. No actionable merge-blocking issue was established.
Pre-merge checks: 5
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The title "test(usage): state the filter index availability contract Windows can reach" matches the main change. The PR updates tests/usage/usage-filter-index.test.ts so that tests Windows cannot repr…
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Explanation
The title "test(usage): state the filter index availability contract Windows can reach" matches the main change. The PR updates tests/usage/usage-filter-index.test.ts so that tests Windows cannot reproduce are skipped or made POSIX-only. It adds a cross-platform afterRefresh removal case and availability tests for fallback behavior. The title names the test scope and the Windows reachability goal, so a reviewer scanning history can identify the primary change. The title is concise, uses a conventional prefix, and has no file list or vague wording.
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Reviewing files that changed from the base of the PR and between e37e332 and a0b87e6.
Files selected for processing: 1
tests/usage/usage-filter-index.test.ts
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Actionable comments posted: 1
Fix comments: Fix CodeRabbit comments on this PR
Prompt to fix all issues
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @tests/usage/usage-filter-index.test.ts:
- Around line 1160-1161: Update the test using `remove` and `afterRefresh` to
record whether the hook removed an existing projection, then assert that record
after the query completes. Keep the assertion outside the hook, where assertion
failures could be caught as index-creation failures, and retain the final check
that the projection file is absent.
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Reviewing files that changed from the base of the PR and between 3580fc9 and e37e332.
Files selected for processing: 1
tests/usage/usage-filter-index.test.ts
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Cause: two filtered usage index availability cases asserted states Windows cannot produce. chmod does not restrict a directory, and SQLite's open file cannot be deleted. Dev batch 42543407433, windows 4/11.
Change: test-only. The chmod case and the open-file deletion case are POSIX-only. A new case deletes the projection after the refresh connection closed, which every platform can reach, and asserts that the hook really removed it.
Independent review: round 1 (hyds DeepSeek) APPROVE-WITH-NITS on e37e332, nits folded. A fresh final reviewer approved a0b87e6 (APPROVE). It reproduced the non-vacuity mutation and instrumented which fallback branch each case reaches. Two optional nits (rethrow a captured removal error; name the retry constants) are not taken.
Exact-head PR CI: gates, test changed, api usage, storage policy, hygiene, enforce-target, label, CodeRabbit all green. Windows and macOS lanes do not run on PRs.
NOT RUN: Windows. The next dev batch (windows 4/11) is the proof.
Maintainer integration into dev under MAINTAINERS.md's dev-only PR bypass (owner account, admin). This is not a self-approval: the independent reviews and exact-head checks are recorded in the comment above. There are no outstanding maintainer change requests.
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choreMaintenance, CI, tests, refactors, or build changes (not a user-facing bug or feature).
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Summary
Two
filtered usage index availabilitycases failed on Windows in dev batch 42543407433 (windows 4/11). Both set up a state Windows cannot produce. The product code is correct; the tests now state what Windows can check.an unwritable home degrades to the streaming readmakes the home unwritable withchmod 0o555. On Windows that call does not restrict a directory, so the index was built normally andfilterIndexwas present. The test is now skipped on win32. The fallback it checks is the catch-all inreadUsageFilterCandidates(any index-side error returnsnull), with no platform branch. The new vanishing-after-refresh case reaches that catch-all on every OS; the contention and foreign-file cases cover the busy and explicit fallbacks.a projection that vanishes before the read is not recreateddeletes the database from theafterPublishhook while the writer connection still has it open. Windows refuses to delete a file SQLite holds open, so the file stayed andexistsSyncwas true. That case now runs on POSIX only, where deleting an open file is possible. A new case,a projection that vanishes after the refresh closed it is not recreated by the read, deletes the file fromafterRefresh, after the refresh connection has closed. Every platform can reach that state, and the read still has to answer from the ledger without recreating the file. Both cases share one helper.Verification
bun test tests/usage/usage-filter-index.test.ts(macOS, isolated HOME): 46 pass, 0 fail.openIndexForReadmutated to open withcreate: true, the newafterRefreshcase fails (existsSynctrue). Mutation reverted.bun run typecheck: pass.windows 4/11in the next dev batch.Checklist
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