Testing React Native Apps

This section adds three kinds of automated test to BookNest: Jest 62,362 unit tests, React Native Testing Library 3,421 component tests, and end-to-end flows on the emulator with Maestro and Detox 12,028 , all run against the Expo SDK 57 6,418 app (React Native 0.86.3 36,878 , React 19.2.3 7,897 ).

Subsections

• Testing Strategy
• Jest Preset
• Component Tests
• React Native Testing Library
• Querying by Role and Text
• Testing Hooks and Async Code
• Mocking Native Modules
• Maestro
• Writing a Maestro Flow
• End-to-End Testing with Detox
• Maestro Versus Detox
• Testing BookNest