5 Minute DevOps Effective Testing
Article Summary
Walmart's DevOps team has a bold claim: if you're not testing during development, you're risking the business. Here's why your testing strategy might be fundamentally broken.
Bryan Finster from Walmart Global Tech breaks down what effective testing actually means in a continuous delivery world. This isn't about tools or automation teams. It's about developers owning quality from unit tests to production.
Key Takeaways
- CD pipelines exist for one purpose: prove code is worthy of delivery, fast
- Unit tests are table stakes; functional tests verify actual business logic flows
- Contract tests and service virtualization beat flaky integration tests every time
- End to end tests should only cover happy path user journeys, not everything
- Tests must work even when dependencies fail during 3am production fires
Critical Insight
High performing teams depend on developer written tests across multiple layers, not external test teams or fancy tools that promise to automate quality.
