Google Professional Cloud Developer Question 268
Select 3Google Cloud PlatformYou are developing a serverless application on Google Cloud using Cloud Functions and want to ensure the application is thoroughly tested before deployment. Which of the following testing strategies should you consider to cover potential issues effectively?
- A
Unit testing to validate the functionality of individual functions in isolation.
- B
Integration testing to verify interactions between multiple Cloud Functions and external services.
- C
Stress testing to analyze the application's behavior under heavy traffic loads.
- D
UI testing to ensure that the frontend user interface works as expected.
- E
End-to-end testing to simulate real-world user workflows across the entire application.
Show answer and explanation
Correct answers: A, B, E
Explanation
Testing serverless applications requires focusing on core functional and integration aspects. Unit testing ensures the correctness of individual Cloud Functions, while integration testing ensures their interactions with other components. End-to-end testing validates the application's overall behavior in real-world scenarios. Stress and UI testing, while useful in specific contexts, are not primary concerns for backend serverless testing during development.
- A. Correct.
Unit testing is essential for verifying that each Cloud Function works correctly in isolation, which is a fundamental part of application testing.
- B. Correct.
Integration testing is crucial for ensuring that Cloud Functions interact correctly with external services (e.g., APIs or databases) and with each other.
- C. Incorrect.
While stress testing is useful for performance evaluation, it is not a primary consideration for functional validation during the development phase of serverless applications.
- D. Incorrect.
UI testing focuses on frontend interfaces, which are not directly related to Cloud Functions testing. While important for frontend development, it is not relevant here.
- E. Correct.
End-to-end testing ensures the entire application, including Cloud Functions, external services, and other components, works together as expected. It is critical for simulating user workflows.