Quiz for Unit vs Integration Testing

Q1: What is the main focus of unit testing?

A. A. Testing individual components or functions in isolation B. B. Testing the interaction between multiple components C. C. Testing the whole application end-to-end D. D. Testing UI layout only

Q2: What does integration testing verify?

A. A. How different components work together B. B. Single component behavior C. C. UI styling D. D. Database performance

Q3: Which of the following is NOT typically covered by unit tests?

A. A. Component rendering output B. B. Function logic correctness C. C. API server response D. D. State updates

Q4: Integration tests in React often use which tools?

A. A. React Testing Library and Jest B. B. CSS preprocessors C. C. Webpack D. D. ESLint

Q5: Which test type is faster to run?

A. A. Unit tests B. B. Integration tests C. C. End-to-end tests D. D. Manual tests

Q6: Which test type is more comprehensive but slower?

A. A. Integration tests B. B. Unit tests C. C. Syntax tests D. D. Style tests

Q7: Which testing type should cover UI component rendering?

A. A. Unit testing B. B. Load testing C. C. Security testing D. D. Performance testing

Q8: Which testing type should cover navigation between pages?

A. A. Integration testing B. B. Unit testing C. C. Lint testing D. D. Static testing

Q9: What is a common characteristic of integration tests?

A. A. They involve multiple components B. B. They test CSS only C. C. They run in isolation D. D. They are manual only

Q10: Which test type is typically written first during development?

A. A. Unit tests B. B. Integration tests C. C. End-to-end tests D. D. Load tests

Q11: Integration tests often require which of the following?

A. A. Mocked or real APIs B. B. Just snapshots C. C. No dependencies D. D. Only static HTML

Q12: Which of the following best describes unit testing?

A. A. Isolated, fast, focused B. B. Slow and comprehensive C. C. Only UI testing D. D. Only backend testing

Q13: What is the role of mocks in unit testing?

A. A. To simulate dependencies and isolate tests B. B. To slow down tests C. C. To replace the UI D. D. To test deployment

Q14: Integration tests help catch issues in what?

A. A. Component communication and data flow B. B. Typing errors C. C. Code formatting D. D. Server configuration

Q15: Unit tests usually focus on:

A. A. Function outputs and component rendering B. B. End-user acceptance C. C. Network latency D. D. Database schema

Q16: Which testing strategy is better suited for UI behavior?

A. A. Integration testing B. B. Unit testing C. C. Syntax testing D. D. Accessibility testing

Q17: Unit tests can sometimes be brittle due to:

A. A. Over-testing implementation details B. B. Testing user flows C. C. Testing accessibility D. D. Testing responsiveness

Q18: Integration tests can help identify:

A. A. Problems caused by component interaction B. B. Incorrect variable names C. C. Syntax errors D. D. Deployment issues

Q19: Which testing type generally requires a test environment setup?

A. A. Integration testing B. B. Unit testing C. C. Linting D. D. Static analysis

Q20: What is a disadvantage of integration tests compared to unit tests?

A. A. They are slower and more complex to maintain B. B. They test less functionality C. C. They are easier to write D. D. They require no environment