Python Test Quality Analysis

Measure test coverage and verify test suite effectiveness using coverage analysis and mutation testing.

Objectives

1. Measure code coverage comprehensively
2. Identify untested code paths
3. Verify test suite catches bugs (mutation testing)
4. Enable safe refactoring through high test coverage
5. Track coverage trends over time

Required Tools

Add to [dependency-groups] dev: "pytest", "pytest-cov", "mutmut", "coverage" Optional: "cosmic-ray" (advanced mutation testing)