Practice Stubs: Simulating Dependencies with Controlled Responses - 2.2.4.4 | Software Engineering - Unit Testing Techniques | Software Engineering Micro Specialization
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2.2.4.4 - Stubs: Simulating Dependencies with Controlled Responses

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a stub in the context of unit testing?

πŸ’‘ Hint: Think about the purpose of isolating tests.

Question 2

Easy

Why is isolation important in unit testing?

πŸ’‘ Hint: Consider the reliability of model testing.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary purpose of a stub in unit testing?

  • A. To replace complex dependencies with simple implementations
  • B. To permanently delete the dependency
  • C. To log all calls made to the dependency
  • D. To provide live responses from actual databases

πŸ’‘ Hint: Focus on the role of stubs in simplifying dependencies.

Question 2

True or False: Using stubs can significantly slow down test execution.

  • True
  • False

πŸ’‘ Hint: Think about the definition of stubs.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a unit test case for a service that calculates discounts based on customer type and simulate the necessary dependencies using stubs.

πŸ’‘ Hint: Focus on how the stub can exert varying responses to different customer types.

Question 2

Discuss how using stubs might impact the testing of a complex feature that integrates multiple external services.

πŸ’‘ Hint: Think about the trade-offs between isolated tests and real-world scenarios.

Challenge and get performance evaluation