What's the purpose of the JUnit 5 @Nested annotation

Question

In JUnit 5, there is a new annotation: @Nested.

I understand how it work, I understand why we use nested class, I just don\'t understand why we need to have

Answer 1

The @Nested annotation allows you to have an inner class that's essentially a test class, allowing you to group several test classes under the same parent (with the same initialization).