Mockito Tutorial: Learn mocking with 25 Junit Examples - Step 07: @BeforeClass @AfterClass

The video tutorial explains the use of before and after class annotations in testing. It highlights the importance of using static methods for before class annotations and discusses the execution order of tests. The tutorial also covers performance considerations when using these annotations, suggesting their use when certain operations are time-consuming. The session concludes with a summary of the key points discussed.

What is the primary purpose of using before class and after class annotations?

• To perform actions only once for an entire class

• To execute actions before and after every test

• To handle exceptions in tests

• To initialize instance variables

Which of the following is a requirement for a method implementing the before class annotation?

• It must be a static method

• It must return a boolean

• It must throw an exception

• It must be an instance method

Why is it important for a before class method to be static?

• To restrict it to class-level operations

• To enable exception handling

• To ensure it runs multiple times

• To allow access to instance variables

In what scenario would you prefer using before class and after class annotations over before and after annotations?

• When tests are executed in parallel

• When tests require different setups

• When performance optimization is needed

• When tests are independent

What is a potential use case for the before class annotation?

• Initializing instance variables

• Setting up database connections

• Handling exceptions

• Logging test results