15.7.3 - Injecting Mocks
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Practice Questions
Test your understanding with targeted questions
What is the purpose of mocks in unit testing?
💡 Hint: Think about what you do when you don't want to use real components.
What annotation do you use to inject mocks in a class with Mockito?
💡 Hint: Remember the prefix ‘@’ which is common in annotations.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the @InjectMocks annotation do?
💡 Hint: Think about what the annotation helps with during testing.
True or False:Mocks can also be used for testing private methods.
💡 Hint: Recall the purpose of unit testing.
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Challenge Problems
Push your limits with advanced challenges
Create a unit test using Mockito that injects mocks into a class with multiple dependencies. Include verification for the expected behavior.
💡 Hint: Set up @InjectMocks for `UserService`, use when() for mock behaviors, and verify() to check interactions.
Explain how injecting mocks contributes to the TDD process and write a test case reflecting this process.
💡 Hint: Consider the classic TDD cycle: Red, Green, Refactor.
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