25.12. Mocking in Unit Tests

Try these first

1. 1.

   What is mocking?

   Hint

   Think about why we would want to isolate tests.

2. 2.

   Name a framework used for mocking in Java.

   Hint

   It sounds like a friendly Italian name!

3. 3.

   What is the primary purpose of mocking in unit tests?

   • To speed up test execution
   • To isolate the code being tested
   • To verify the database connection

   Hint

   Think about what isolation means in testing.

4. 4.

   True or False: Mockito can only be used to test methods that interact with databases.

   • True
   • False

   Hint

   Consider all external factors your code interacts with.

5. 5.

   Design a unit test for a service that uses an external API to fetch weather data. How would you mock the API interactions using Mockito?

   Hint

   Think about how you would define a stub response for a specific weather query.

6. 6.

   Imagine you have a method that sends notification emails through an external email service. Describe how you would test this method without sending real emails.

   Hint

   Consider what interactions are important to confirm successful email sending.