CERTIFIED-DATA-ENGINEER-PROFESSIONAL · Question #95
Which statement describes a key benefit of an end-to-end test?
The correct answer is A. It closely simulates real world usage of your application. End-to-end (E2E) tests simulate complete, real-world user workflows by exercising the entire application stack from input to output, closely mirroring how actual users interact with the system. This is their primary benefit. They do not pinpoint errors at a granular level-that…
Question
Which statement describes a key benefit of an end-to-end test?
Options
- AIt closely simulates real world usage of your application.
- BIt pinpoint errors in the building blocks of your application.
- CIt provides testing coverage for all code paths and branches.
- DIt makes it easier to automate your test suite
How the community answered
(42 responses)- A90% (38)
- B5% (2)
- C2% (1)
- D2% (1)
Explanation
End-to-end (E2E) tests simulate complete, real-world user workflows by exercising the entire application stack from input to output, closely mirroring how actual users interact with the system. This is their primary benefit. They do not pinpoint errors at a granular level-that is the role of unit tests (option B). Full branch and code-path coverage is typically the goal of unit or integration tests with coverage tools (option C). E2E tests are generally more complex and slower to automate, not easier (option D). Their value lies in catching integration failures and regressions that lower-level tests might miss.
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