Mark
47e9818cb1
Wire A25 into the UAT harness as the binding empirical gate for REQ-archive-export-latency / SPEC §10 #6 (5000ms hard ceiling end-to-end from SAVE_ARCHIVE dispatch to zip-on-disk). Architecture: - Page-side assertA25 records t0 (performance.now) + t0Wall (Date.now) + tAck bookends around the chrome.runtime.sendMessage(SAVE_ARCHIVE) call. Returns A25Result extending AssertionRecord with the 3 timing fields + ackSuccess flag. - Host-side driveA25(page, downloadsDir) snapshots zip dir BEFORE page.evaluate dispatch, polls for new-or-overwritten .zip via mtime delta (mirrors A12/A13 overwrite-aware pattern), uses page-supplied t0Wall as the host anchor for the dispatch→file-on-disk latency check (NOT a host-side Date.now captured before page.evaluate, which would include setupFreshRecording + 11s segment-settle wall time and always fail the 5s budget). [Rule 1 - Bug] Initial implementation used host-side Date.now() captured before page.evaluate as the latency anchor — this incorrectly included the 11s segment-settle window in the budget. First run observed A25.3=11188ms (FAIL). Fix: page-side captures Date.now() at the SAVE_ARCHIVE dispatch instant (AFTER setupFreshRecording + segment-settle complete) and returns it as t0Wall in A25Result; the driver uses this as the canonical host anchor. Result on re-run: A25.3=61ms (GREEN, well under 5s SLO). Documented per T-02-04-02 disposition (bracket only the SAVE dispatch, not the broader test orchestration). Files modified: - tests/uat/extension-page-harness.ts (+~115 lines): assertA25 + A25_* constants + A25Result interface - tests/uat/lib/harness-page-driver.ts (+~95 lines): driveA25 + A25_HOST_POLL_TIMEOUT_MS const + A25_LATENCY_CEILING_MS const - tests/uat/harness.test.ts (+~15 lines): import driveA25, wrap with downloadsDir, append to drivers list Verification: - HEADLESS=1 npm run test:uat → 26/26 GREEN - elapsedAck=60ms, host-side delta=61ms (both well under 5000ms SLO) - npx vitest run tests/background/no-test-hooks-in-prod-bundle.test.ts → 13/13 GREEN (Tier-1 FORBIDDEN_HOOK_STRINGS unchanged at 12) - npx tsc --noEmit → clean Plan 02-04 scope: 2/3 tasks landed (A24 + A25); Task 3 adds A26 (meta.json 8-field) + A27 (multi-tab strict) + A28 (archive-layout strict).
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