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Turn your SLOs into pytest assertions.
32 starsPython
Pytest-fastprom – Turn your SLOs into pytest assertions
by lujeni_·May 31, 2026·1 point·0 comments
AI Analysis
●●SolidSolve My ProblemBig BrainNiche Gem
Asserts SLOs against Prometheus metrics instead of flaky wall-clock timing in CI.
Strengths
- •In-process registry assertions avoid needing external metric server during test runs.
- •Regression detection saves baselines to catch performance drift between commits.
- •Isolated registry per test prevents metric leakage and issues between cases.
Weaknesses
- •Tightly coupled to FastAPI and Prometheus, limiting use for other frameworks.
- •Machine-aware baselines risk false positives when running across different CI runners.
Category
Target Audience
Backend engineers and SREs using FastAPI and Prometheus
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pytest-benchmark · locust
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