Aspects of Code Quality CT-ATT Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   During a code review, a tester notices that a class has a method that does several unrelated things: it validates input, updates a database, and sends an email. The method is difficult to test because each test must set up all three concerns. Which code smell does this most directly represent?

   • AShotgun surgery
   • BLong method
   • CGod object
   • DFeature envy
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2. 22foundation · easy

   What is refactoring?

   • AAdding new features to the code to meet changing requirements
   • BRewriting the code from scratch to fix defects
   • CRestructuring the code to improve its internal structure without changing its external behavior
   • DChanging the code's external behavior to improve its performance
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4. 23application · medium

   A developer is refactoring a class to reduce its complexity. The class has a large number of unit tests that are tightly coupled to the current implementation. What is the most important consideration for the tester during this refactoring?

   • AInsist that the tests remain unchanged to prove that the refactoring is behavior-preserving.
   • BWrite new tests that cover the new implementation before the refactoring begins.
   • CAsk the developer to avoid refactoring any code that has tests.
   • DEnsure that the tests are updated to reflect the new internal structure while preserving the same external behavior.
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5. 24foundation · easy

   Which statement best defines code quality in the context of agile testing?

   • AThe extent to which code is free of bugs and performs efficiently in production
   • BThe degree to which code meets its functional requirements and passes all tests
   • CThe overall measure of how well code satisfies both functional and non-functional requirements, including maintainability and readability
   • DThe number of lines of code and the complexity of the algorithms used
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6. 25application · medium

   A tester and a developer are pair programming to implement a new feature. The tester notices that the developer is writing code that is difficult to test because it directly instantiates a concrete class instead of using an interface. What is the best way for the tester to address this?

   • AWait until the code is committed and then write a test that uses reflection to bypass the concrete class.
   • BReport the issue to the scrum master to be addressed in a future sprint.
   • CAsk the developer to write the test first to prove the code is testable.
   • DSuggest refactoring the code to depend on an interface and inject the concrete class from outside.
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