Test Quality Python Packages

testguard-cli

Claim-driven mutation testing: inject faults and report what your tests miss. Vitest, Jest, Playwright, pytest & unittest. Part of the Guard family with DocGuard and WebSec Validator.

wringer

Bounded engineering loops for coding agents: independent checks and review, portable evidence, and measured improvements for future work. Bun/TypeScript.

ordeal

Automated chaos testing for Python — fault injection, property assertions, and stateful exploration

evalint

Lint an LLM eval set: reliability, wrong-answer items, near-duplicates, and droppable cases.

gdmutant

Mutation testing for GDScript and Godot: find the bugs your green tests would miss.

falsegreen

Find false-green tests: tests that pass without verifying anything. Deterministic Python/pytest AST scanner (C1-C59 + PL config-audit), zero-dep, CI-ready.

mutagen-cli

Your tests are green. Here's what they don't catch — LLM-generated mutation testing for pytest suites

oracle-gate

The Oracle Gate — a framework for testing AI-built code. Coverage isn't fault-detection, and the gap widens when a model writes both the code and its tests.

unfaked

Your agent said it's done. unfaked checks whether it made that true, or just made the check pass. Zero dependencies, no LLM.