Smoke & Sanity Testing

Summary

Smoke testing checks that the most critical functions work at all after a new build (a very shallow, broad check); sanity testing verifies a specific fix or feature works after a small change — both are quick, focused checks.

• 1Draft a smoke test checklist covering the 5-6 most critical functions of a hypothetical app.
• 2Learn why a failed smoke test should block further testing until fixed.
• 3Understand the difference between smoke testing's breadth and sanity testing's narrow focus.