Introduction In this post, I will be showing Junit mockito doNothing example in one of the most widely used and popular JUnit Testing Mocking framework – Mockito. I am going to use PowerMock API to test Java classes. I am going to show you when to use doNothing() method.

In this post, I will be showing one of the most widely used and popular JUnit Testing Mocking framework – Mockito. Mockito is one of the widely used testing API for Java. I am going to show you how to work with doReturn() and when to use it for testing your Java class using Junit.