django-query-contract

A query-capture engine for Django, and a pytest plugin over it.

See the README for the overview, N+1 detection for the detector and how a finding is defined, growth assertions for asserting a count is O(1) rather than O(N), call-site attribution for asking any statement where it came from, plan capture for what PostgreSQL did with a statement and what it got wrong about it, and the API reference for the capture record.