I hope you find these video lessons helpful. There are many more video lessons that I have recorded and packaged into a single video course. Please check out my video course below if you want to learn how to do Unit Testing and Integration Testing of Java applications.
JUnit - Complete Introduction to Testing Java Code
What is JUnit Test method in Java?
Add JUnit support To Java Maven Project
Add JUnit To Java Gradle Project
JUnit 5 Lazy Assertion Message
JUnit Test Method Structure. Arrange, Act and Assert.