DevOps Cloud Academy

Aug 31, 2021 · Fundamentals

Google and Microsoft Automated Test Case Classification: S/M/L and L0–L3 Levels

The article examines how Google and Microsoft have evolved their automated testing strategies, defining test sizes (small, medium, large) and Microsoft’s L0‑L3 test level taxonomy, and explains the benefits and cultural shifts that led to widespread adoption of unit‑focused testing in modern DevOps practices.