Δ Diff Review Kit
Verification page

Test Matrix

The test surface validates correctness, backward compatibility, retries, render determinism, access control, and rollout safety before traffic is moved to the proposed path.

Area Test Failure caught Required before rollout
Unit Source hash generation is stable for identical content. Cache miss explosion and duplicate artifacts. Yes
Contract POST /v1/documents requires Idempotency-Key. Client retry creates duplicate versions. Yes
Integration Publish event creates render job exactly once. Queue redelivery causes duplicated side effects. Yes
Integration ACL projection updates without writing a new content version. Access changes pollute content audit history. Yes
Performance Public read p95 stays under 120ms from edge cache. Projected ACL or artifact path adds unacceptable latency. Yes
Chaos Renderer down for 10 minutes while publish API remains available. Synchronous dependency still exists in write path. Yes
Migration Backfilled versions match legacy document body by checksum. Historical content mismatch. Yes
Security Invite-only document cannot be fetched by anonymous read path. ACL projection incorrectly grants public access. Yes

Smoke script

1. Create document with invite-only access
2. Retry same request with same Idempotency-Key
3. Assert same documentId and versionId
4. Poll version state until ready
5. Fetch rendered artifact by public URL
6. Assert anonymous user is blocked
7. Grant domain access
8. Assert projection version increments
9. Fetch with domain-authenticated user
10. Confirm trace contains request → event → job → artifact

Release SLOs

Publish API availability99.95%
Public read p95<120ms
Render success within 60s99.5%
Duplicate side effects0