testing

name	testing
description	Portable guidance for testing. Use when work involves testing.

Core Principle

Test results, not implementation.

• ✅ Test that the output of a function matches expectations
• ✅ Test that a button click leads to the expected UI state
• ❌ Don't test that a specific internal function got called
• ❌ Don't test private state — only observable behavior

Throwaway Test Files

If creating ad-hoc files to test something during development, delete them when done. This does not apply to actual unit/integration tests committed to the repo.