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Software Refactoring Techniques: Week 8 Quiz

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Questions and Answers

Why do refactoring steps need to be relatively small?

To speed up the refactoring process
To simplify large chunks of code
To reduce the risk of making accidental changes to functionality (correct)
To minimize the need for regression testing

In the context of refactoring, what is the purpose of extracting a function or method?

To increase code duplication
To prepare for moving code between classes (correct)
To introduce performance optimizations
To enhance the complexity of functions

When referring to the extraction of variables, what should be considered regarding performance?

Considering potential performance issues (correct)
Ignoring performance entirely for readability purposes
Focusing on performance optimization exclusively
Ensuring maximum performance without considering readability

What is the primary reason for turning a complex expression into a reusable variable?

To improve code readability and potentially performance (C) Signup and view all the answers

Which technique helps in breaking up large monolithic functions during refactoring?

Extracting functions or methods (C) Signup and view all the answers

What makes regression testing important in the context of refactoring?

To check for accidental changes in functionality (C) Signup and view all the answers

What is the purpose of moving a method from one class to another?

To improve modularity and maintainability (B) Signup and view all the answers

What is the purpose of the 'k_future_mapping' function in the given code snippet?

To create a dictionary mapping current states to their respective next states with k-future information. (B) Signup and view all the answers

When moving a field to another class, what should be considered?

Placing the field where methods that use it are located (B) Signup and view all the answers

What data structure is used to store future state mappings in the 'k_future_mapping' function after applying the 'Extract Variable' refactoring?

Set (D) Signup and view all the answers

What does combining multiple functions into a class help improve?

Modularity, maintainability, and sustainability (D) Signup and view all the answers

In the 'k_future_mapping' function, what does the 'get_k_future' function do?

Calculates the k-future state for a given state in an FSM. (C) Signup and view all the answers

Why should automated refactoring be used with caution?

To avoid introducing new bugs or issues (D) Signup and view all the answers

After applying the 'Rename Variable' refactoring, what is the major advantage gained in terms of variable naming?

Improved readability and consistency in representing future state information. (A) Signup and view all the answers

What is the significance of using 'frozenset' in storing future state mappings in the 'k_future_mapping' function?

Ensures immutability and uniqueness of future state collections. (B) Signup and view all the answers

Which design principle is violated when methods are not moved to the classes where they belong?

Single Responsibility Principle (C) Signup and view all the answers

How does combining functions into a class impact code organization?

Improves code organization and readability (C) Signup and view all the answers

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