Jan Giacomelli • 4/28/2026

AI-Powered Rewrite from Python to Rust - part 2

This article is part 4 of a series on rewriting a LogParser from Python to Rust using AI. It focuses on setting up contract tests to ensure both implementations pass the same tests, providing confidence that they behave identically. The author explains how to refactor existing Python tests into a contract test pattern, create a Rust wrapper class, and run the same tests against both implementations. The goal is to verify correctness before leveraging Rust's performance benefits. The article includes practical steps and code examples for implementing contract tests in pytest.

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#Python #rust #property-based testing