The Visual Studio already includes the support for implementing unit tests for the code we write. The resemblance with the JUnit framework is amazing. If you are already familiar with the JUnit framework you will find microsoft implementation smooth and easy to use. I hope the following video clip will assist you doing the first steps.

Stable Values in Java (JEP 502): Deferred Immutability with JVM Trust
Explore Stable Values – a new Java 25 upcoming feature (JEP 502) enabling lazy initialization with immutable performance and JVM-level optimizations.