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Testing

:::info Source Sourced from services/media-service/TESTING_STRATEGY.md in the documentation repo. :::

1. Coverage Targets​

Domain 95% / 98% / 80% mutation. Integration 80%.

2. Unit Tests​

  • MediaAsset state machine.
  • SHA-256 dedup.
  • Caption format parsing (VTT, SRT).
  • Variant profile resolver.
  • AI provenance invariants.

3. Integration (Testcontainers)​

  • Postgres + MinIO + ClamAV + mock ai-gateway.
  • Flow: upload URL → S3 upload → scan → transcode → ready.
  • Quarantine path with malicious fixture.
  • Caption generation E2E.

4. Contract Tests​

  • Pact with authoring, content, search.
  • OpenAPI diff in CI.

5. E2E​

  • Author uploads video → ready → author inserts block → publish.
  • AI-generated image → inserted → published bundle includes it.

6. Load​

  • 500 concurrent uploads (1 GB/s throughput).
  • Transcode queue: 100 concurrent video jobs.
  • Stream: 10k concurrent HLS viewers.

7. Security Tests​

  • EICAR AV test → quarantined.
  • Path traversal in filename → sanitized.
  • Cross-tenant asset access → 403.
  • Signed URL after TTL → 403.
  • Malicious content classifier tests (CSAM simulation fixtures → quarantine path).

8. AI Tests​

  • Image gen determinism (same prompt + seed → same output).
  • STT accuracy eval on multi-accent corpus.
  • Caption review workflow.

9. Offline Tests​

  • Bundle-embedded media decrypts + plays offline.
  • Caption tracks available offline.

10. CI Gates​

Unit + integration + security fixtures + OpenAPI + Pact + iso + mutation ≥ 80%.