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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the main purpose of using a spy in unit testing?
π‘ Hint: Think about what spies can do that regular mocks cannot.
Question 2
Easy
Describe a scenario where using a spy is more beneficial than using a mock.
π‘ Hint: Consider notifications, external API calls, or similar situations.
Practice 1 more question and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does a spy do in unit testing?
π‘ Hint: Think about the roles of different test doubles in unit testing.
Question 2
True or False: A spy cannot verify that a method was called with the correct number of arguments.
π‘ Hint: Consider what spies are meant to track.
Solve and get performance evaluation
Push your limits with challenges.
Question 1
Given a complex class with several methods, create a unit test using spies to verify method calls without altering any real behavior.
π‘ Hint: Consider focusing on one method and checking its invocation parameters.
Question 2
Analyze how you could refactor a test where multiple spies are used, potentially complicating the readability and maintenance.
π‘ Hint: Think about if all spies are necessary or if some behaviors can be validated using fewer spies.
Challenge and get performance evaluation