test-behavior-not-implementation
Testing Trophy
Testing philosophy for React and TypeScript projects. Based on Kent C. Dodds' Testing Trophy and TkDodo's testing principles.
Testing Trophy Priorities
From most to least valuable:
- Integration tests — test multiple units working together (highest confidence per effort)
- Unit tests — test individual functions in isolation
- End-to-end tests — test full user flows (highest confidence, highest cost)
- Static analysis — TypeScript, ESLint (cheapest, catches typos and type errors)
"The more your tests resemble the way your software is used, the more confidence they can give you." — Kent C. Dodds
Core Principles
1. Test behavior, not implementation
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