Mutation Testing - Test Quality Verification

I'll help you verify the quality of your test suite through mutation testing. This technique introduces small changes (mutations) to your code and verifies that your tests catch them.

What is Mutation Testing? Mutation testing evaluates test effectiveness by:

• Creating mutants (modified versions of your code)
• Running tests against each mutant
• Calculating mutation score (% of mutants killed by tests)
• Identifying weak tests that don't catch bugs

Quick Start: Mutation testing verifies test quality by introducing code changes and checking if tests catch them. This skill optimizes token usage through incremental testing and sample-based analysis.

Phase 1: Detect Project and Tools

First, let me analyze your project setup: