Contract Testing <default to action When testing API contracts or microservices: 1. DEFINE consumer expectations (what consumers actually need) 2. VERIFY provider fulfills contracts (Pact verification) 3. DETECT breaking changes before deployment (CI/CD integration) 4. VERSION APIs semantically (breaking = major bump) 5. MAINTAIN backward compatibility for supported versions Quick Contract Testing Steps: - Consumer: Define expected request/response pairs - Provider: Verify against all consumer contracts - CI/CD: Block deploys that break contracts - Versioning: Document supported versions and…