# QA Results: Re-materialization after Purge

## Test Runs

### Lib Tests
```
cargo test --lib --manifest-path tidal/Cargo.toml
test result: ok. 1299 passed; 0 failed; 0 ignored; 0 measured
```

### Integration Tests — m9_purge_remat (new)
```
cargo test --test m9_purge_remat --manifest-path tidal/Cargo.toml
running 6 tests
test submit_purge_job_returns_job_id ... ok
test purge_job_status_pending_after_submit ... ok
test unknown_job_id_returns_none ... ok
test rematerialization_metrics_snapshot_is_valid ... ok
test job_succeeds_in_persistent_mode ... ok
test multiple_jobs_processed_independently ... ok
test result: ok. 6 passed; 0 failed
```

### Integration Tests — m9_retroactive_purge (regression)
```
cargo test --test m9_retroactive_purge --manifest-path tidal/Cargo.toml
running 8 tests
test basic_purge_retracts_score ... ok
test second_purge_is_idempotent ... ok
test purge_does_not_affect_other_users ... ok
test manifest_persisted_and_listable ... ok
test purge_unknown_cohort_is_noop ... ok
test score_never_goes_negative ... ok
test multiple_items_purged_together ... ok
test non_cohort_member_purge_is_noop ... ok
test result: ok. 8 passed; 0 failed
```

### Clippy
```
cargo clippy --manifest-path tidal/Cargo.toml -- -D warnings
Finished `dev` profile [unoptimized + debuginfo] target(s) — clean, no warnings
```

### Formatting
```
cargo fmt --manifest-path tidal/Cargo.toml --check
exit: 0 — clean
```

## Acceptance Criteria Check

| Criterion | Result |
|-----------|--------|
| 1299 lib tests pass | PASS |
| 6 m9_purge_remat integration tests pass | PASS |
| 8 m9_retroactive_purge regression tests pass | PASS |
| `cargo clippy -- -D warnings` clean | PASS |
| `cargo fmt --check` clean | PASS |
| `submit_purge_job` returns JobId without blocking | PASS (test 1) |
| `purge_job_status` returns Pending after submit | PASS (test 2) |
| Unknown job id returns None | PASS (test 3) |
| Fresh db metrics show zero counts | PASS (test 4) |
| Jobs transition to Succeeded in persistent mode | PASS (test 5, < 10s) |
| Multiple jobs processed independently | PASS (test 6, < 15s) |
| Scores never go negative after purge | PASS (existing test) |
| Second purge is idempotent | PASS (existing test) |

## Status: PASSED