React Web Skill

Test-First Development (MANDATORY)

CRITICAL: Tests MUST be written BEFORE implementation code. This is non-negotiable for frontend components.

The TFD Workflow

1. Write test file first → Defines expected behavior
2. Run test (it fails) → Confirms test is valid
3. Write minimal code → Just enough to pass
4. Run test (it passes) → Validates implementation
5. Refactor if needed → Tests catch regressions