JUnit 5 is the latest version of the popular testing framework for Java. It offers a variety of features to help you test your applications. To give you as a beginner the most important 20% of insights that will help you understand and apply 80% of JUnit 5 usage, we will focus on the basic and …

1. What is a Predicate?

A Predicate is a functional interface in Java 8 that checks a condition and returns a boolean DayOfWeek returns: true or false. It has a single abstract method:

As a beginner in the Java library “Faker”, there are many interesting ways you can generate custom fake data. I will explain to you step by step how you can create your own fakes and use Faker’s flexibility.