What is the purpose of a staging environment and what tests should run there?

Medium Topic: CI/CD May 24, 2026

Staging is a production-mirror environment used to catch bugs that only appear with real data, full infrastructure, and realistic load — things unit tests can’t surface. Tests to run in staging:

Integration tests: Real database connections, real API calls to third parties.
E2E tests: Cypress, Playwright, or Selenium to simulate real user journeys.
Smoke tests: Quick sanity checks that critical paths work after deployment.
Performance tests: Load tests with k6 or Locust to catch regressions.

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