Practice Using Mockito - 15.7 | 15. Unit Testing and Test-Driven Development (JUnit, Mockito) | Advance Programming In Java
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15.7 - Using Mockito

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What annotation is used to create a mock object in Mockito?

💡 Hint: Think about the purpose of the annotation; it creates something fake for testing.

Question 2

Easy

How do you specify that a mock should return a specific value?

💡 Hint: It involves setting a condition followed by the expected result.

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 does the @Mock annotation do?

  • Creates a real object
  • Creates a mock object
  • Injects dependencies

💡 Hint: Recall the primary role of mocking in testing.

Question 2

True or False: The verify method is used to define the behavior of a mock object.

  • True
  • False

💡 Hint: Consider what verifying implies in the context of testing.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a unit test class that uses Mockito to test a UserService class that relies on a UserRepository mock. The test should verify that the findUser method returns the expected user when called.

💡 Hint: Think about the dependencies and how to inject them appropriately into `UserService`.

Question 2

In a service that calculates discounts, how would you use Mockito to mock the database layer that retrieves product prices? Write a test case demonstrating this.

💡 Hint: Make sure you clarify the roles of the database layer and the service you're testing.

Challenge and get performance evaluation