Tag

testing

2 posts

Tutorial Apr 10, 2026

Clean Code Python: Performance — Profiling, N+1 Detection, and Load Testing

An N+1 query that takes 50ms with 10 rows takes 5 seconds with 1000. A memory leak that grows 1MB/hour OOMs in 3 days. Here is how to profile, detect, and load test a multi-tenant Python backend before production tells you first.

14 min read

Tutorial Apr 9, 2026

Clean Code Python: Testing Strategies for the Full Stack

Unit tests, integration tests, and API tests — each has a role in a Python backend. Here is a complete testing strategy for a FastAPI + SQLAlchemy project, showing what to test at each layer and how the patterns from this series make testing effortless.

10 min read