api-integration-test

Production-grade integration tests for internal HTTP and gRPC APIs use real runtime configuration to verify endpoint contracts. They enforce gate-based control, environment safety, and deterministic execution for reproducible runs and clear failure diagnosis.

To prevent accidental production runs, integration tests enforce serial gate-driven workflows with environment validation and production-safety checks. This opt-in execution requires explicitly exporting specific environment variables before tests can run.

The best way to verify service-to-service adapter contracts is using integration tests that validate real responses against defined endpoint contracts. This approach applies real runtime config to ensure the tests accurately represent production behavior.

To run opt-in integration tests for internal APIs in Go, export INTERNAL_API_INTEGRATION=1, set the necessary ENV and API_BASE_URL variables, and execute the command go test -tags=integration ./... to trigger the gate-driven workflow.

Internal API integration tests fail with non-deterministic results when they lack deterministic execution and real runtime configuration. Applying gate-based control and structured failure triage ensures reproducible runs and clear diagnosis of endpoint contract issues.