Learn Java Unit Testing with JUnit 5 in 20 Steps - Step 17 - Tip - Grouping Tests with @Nested

The video tutorial explains how to group tests using nested annotations in JUnit 5. It begins by introducing the concept of grouping tests related to specific features, such as empty and large strings. The tutorial then demonstrates how to create nested classes and use annotations like @BeforeEach to set up test conditions. It also covers running tests and enhancing readability with display names. The video concludes by highlighting the benefits of using nested annotations for better test organization and problem identification.

What is the purpose of using nested annotations in testing?

How can you set a string variable to empty before each test?

What is the significance of the 'before each' annotation?

Describe how to write a test to check if the length of a string is zero.

Explain how nested tests inherit properties from parent tests.

What are the benefits of using display names for tests?

How can you group tests related to large strings?