Test-Driven Development

5 minutes 5 Questions

Test-Driven Development (TDD) is a major XP practice where developers write tests before producing code. The developer first creates an initially failing automated test case that defines a desired functionality, then produces the smallest amount of code to pass that test, and finally refactors the …

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Question 1

A QA engineer complains that they don't have enough test cases to verify all the functionalities of the code. What do you advise?

Encourage the QA engineer to review the TDD tests and collaborate with developers on test cases Ignore the comment and move on Advise the QA engineer to limit the number of test cases used Tell the QA engineer to rely on automated testing only Request the developers to provide test cases without following TDD Ask the QA engineer to write more tests without considering TDD

Correct Answer: Encourage the QA engineer to review the TDD tests and collaborate with developers on test cases

The QA engineer should collaborate with developers, review the TDD tests, and share insights to have comprehensive test cases to verify functionalities.

Question 2

A developer is struggling to find a balance between writing tests and writing code. Which approach should they adopt?

Avoid writing tests altogether Write all the tests first, then write the code Write all the code first, then write the tests Delegate test writing to another team member Spend more time on one area, depending on the project stage Write a test for a small functionality, then write the code to pass the test, and repeat the process

Correct Answer: Write a test for a small functionality, then write the code to pass the test, and repeat the process

TDD involves writing a test first, then writing code to pass the test, and iteration. This approach ensures small, manageable pieces of code.

Question 3

In a sprint planning meeting, the team is evaluating the level of testing effort needed. How should they approach testing within the scope of TDD?

Conduct testing in a future sprint Let the quality assurance team handle all testing efforts Test only after the entire functionality is developed Allocate separate tasks for testing and development Focus solely on development and ignore testing Incorporate testing effort within development tasks and follow the TDD cycle

Correct Answer: Incorporate testing effort within development tasks and follow the TDD cycle

When using TDD, testing is incorporated into development tasks, with the teams working together to follow the TDD cycle, ensuring comprehensive testing.

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Test-Driven Development

Guide to Test-Driven Development

PMI-ACP - Test-Driven Development Example Questions

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