React Testing

Overview

This skill provides comprehensive guidance for testing React applications using Vitest, React Testing Library, and Jest. Apply these patterns when writing unit tests, integration tests, and ensuring code quality.

Core Philosophy

• Test behavior, not implementation: Focus on what users see and do
• Avoid testing internal state: Test public APIs and user interactions
• Write tests that give confidence: Catch real bugs, not false positives
• Keep tests simple: Tests should be easier to understand than the code

Testing Tools

Vitest Configuration