Backend Testing
Balance backend test coverage with delivery speed and change confidence.
Recommended approach
- Unit tests for domain logic.
- Integration tests for module + DB interactions.
- Contract/e2e tests for public API behavior.
Alternatives and when to choose them
- Contract-first testing emphasis for integration-heavy APIs.
- Service virtualization where external dependencies are unstable in CI.
Implementation checklist
- Seed test data deterministically.
- Isolate external services with stubs or containers.
- Include migration checks in CI pipelines.
Common pitfalls
- Tests coupled to internal implementation details.
- Flaky integration tests due to shared mutable environment state.