100 Days of MLOps· day 55 of 100
DAY 55MLOps

Testing Your Model API

Day 55 of 100 Days of MLOps. A service you can't test is a service you can't trust to keep working. Use pytest and FastAPI's test client to write tests that hit your endpoints and assert the responses — a valid request returns a price, a bad one returns 422, the health check passes. It's how you catch a broken endpoint before it ships, and the foundation for CI. Runs 100% locally on any OS.

Jul 11, 2026 8 min read1.4k words

This lesson is for members

The first 4 days of 100 Days of MLOps are free. Unlock the full curriculum — every day of every series, current and future — with one membership.

Monthly

₹399

per month

Annual

₹2,999

per year

Lifetime

₹6,999

one-time

  • Every series, all days — including future series
  • Verified, project-based, no fluff
  • Progress synced across all your devices