Lesson 1 of 10Beginner
Why CI/CD for Testing
Continuous Integration in one line
CI runs your tests automatically on every push/PR, so problems surface in minutes — not during release week. CD (Continuous Delivery/Deployment) extends that to automatically shipping the build once tests pass.
What good CI gives QA
- Fast feedback — a red build blocks a broken merge.
- Consistency — tests run in a clean, identical environment every time.
- A safety net — refactors and dependency bumps are verified automatically.
The golden rule
If a test isn't in CI, it doesn't protect you.
Local-only tests get skipped under deadline pressure. Automation only pays off when it runs on every change, unattended.
Key takeaways
- CI runs tests on every change; CD ships when they pass.
- The value is fast, consistent, unattended feedback.
- A test that isn't wired into CI provides little real protection.