/**
 * SMI-5358: QuarantineService Concurrency / Race Tests
 *
 * Existing coverage (QuarantineService.test.ts) only exercises single, strictly
 * sequential reviews. These tests model OVERLAPPING reviewer/writer operations
 * against the SAME quarantine entry and assert the concurrency invariants that
 * protect against lost updates and illegal state transitions:
 *
 *   1. Two reviewers racing to decide one SUSPICIOUS entry (approve vs reject)
 *      -> exactly one wins, the loser is rejected as ALREADY_REVIEWED, and the
 *         persisted DB state reflects the winner's decision (no lost update).
 *   2. A stale-snapshot ("optimistic version") writer whose read predates another
 *      reviewer's decision -> the stale write is rejected, persisted state is
 *      unchanged from the winner.
 *   3. MALICIOUS double-approval by the SAME reviewer -> the second is rejected,
 *      only one approval row exists, and the entry does NOT illegally transition.
 *   4. MALICIOUS approval by two DISTINCT reviewers reaching the required count
 *      -> the entry transitions to approved EXACTLY once with exactly two
 *         approval rows (no double-count, no double-transition).
 *
 * HONESTY NOTE: better-sqlite3 is fully SYNCHRONOUS, so genuine OS-thread
 * interleaving is not achievable in-process. `Promise.all` / `Promise.allSettled`
 * here schedule each synchronous `service.review()` as a microtask; each call
 * therefore runs to completion atomically rather than truly interleaving. We are
 * NOT faking parallelism. What we test is the REAL concurrency invariant: the
 * read-then-act guard (`reviewStatus !== 'pending'`), the per-reviewer guard
 * (`hasReviewerApproved`), and the approval-count check are what prevent lost
 * updates / illegal transitions when overlapping operations target the same
 * entry. All assertions read the PERSISTED DB state after the race, never a mock
 * return value. Removing any of those guards makes the persisted state
 * inconsistent and fails these tests.
 */
export {};
//# sourceMappingURL=QuarantineService.concurrency.test.d.ts.map