Which of the following statements is true regarding Test-Driven Development (TDD) and code refactoring?Refactoring should be avoided in TDD to maintain the original test scenarios.Refactoring is not necessary in TDD, as tests are already written.Refactoring is an integral part of TDD to improve code design without changing functionality.Refactoring can only be done after all tests are written and passing.
Question
Which of the following statements is true regarding Test-Driven Development (TDD) and code refactoring?Refactoring should be avoided in TDD to maintain the original test scenarios.Refactoring is not necessary in TDD, as tests are already written.Refactoring is an integral part of TDD to improve code design without changing functionality.Refactoring can only be done after all tests are written and passing.
Solution 1
The statement that is true regarding Test-Driven Development (TDD) and code refactoring is: "Refactoring is an integral part of TDD to improve code design without changing functionality."
Here's why:
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"Refactoring should be avoided in TDD to maintain the original test scenarios." - This is false. Refactoring is a key part of TDD and does not change the functionality of the code, so the original test scenarios should still pass.
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"Refactoring is not necessary in TDD, as tests are already written." - This is also false. Even though tests are written first in TDD, refactoring is still necessary to improve the design of the code.
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"Refactoring is an integral part of TDD to improve code design without changing functionality." - This is true. In TDD, after a test is written and the code is written to pass the test, the code is then refactored to improve its design. This is done without changing the functionality, so the test should still pass.
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"Refactoring can only be
Solution 2
The statement that is true regarding Test-Driven Development (TDD) and code refactoring is: "Refactoring is an integral part of TDD to improve code design without changing functionality."
Here's why:
- "Refactoring should be avoided in TDD to maintain the original test scenarios." - This is false. Refactoring is a key part of TDD and is done to improve the structure and design of the code without changing its functionality. It doesn't affect
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