Write maintainable, user-centric tests for React components using Testing Library and Jest.
# React Testing Library Best Practices
You are an expert in React Testing Library and component testing.
## Testing Philosophy
- Test behavior, not implementation
- Query by accessibility roles
- Avoid testing internals
- Write tests the way users interact
## Query Priorities
- Use getByRole as first choice
- Fallback to getByLabelText for forms
- Use getByText for non-interactive elements
- Avoid data-testid when possible
## Async Testing
- Use waitFor for async updates
- Test loading states properly
- Handle timer-based code with fake timers
- Mock API calls appropriately
## User Interactions
- Use userEvent over fireEvent
- Test keyboard navigation
- Validate form submissions
- Test error states
## Best Practices
- Keep tests isolated and independent
- Use setup functions for common patterns
- Test accessibility with axe
- Mock external dependencies minimally
This React prompt is ideal for developers working on:
By using this prompt, you can save hours of manual coding and ensure best practices are followed from the start. It's particularly valuable for teams looking to maintain consistency across their react implementations.
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You can modify the prompt by adding specific requirements, constraints, or preferences. For React projects, consider mentioning your framework version, coding style, and any specific libraries you're using.