What is the purpose of using the @TestInstance annotation in JUnit 5?

edit

The purpose of using the @TestInstance annotation in JUnit 5 is to control the lifecycle of test instances. By default, JUnit 5 creates a new test instance for each test method, which can be expensive and time-consuming for complex test cases. With the @TestInstance annotation, you can specify whether JUnit 5 should create a new test instance for each test method or reuse the same instance for all methods in a test class. Reusing the same instance can improve performance by reducing the overhead of creating new instances for each test method. Additionally, it allows you to share state between test methods, which can be useful for integration testing or testing stateful components.