12 best Java Unit Testing libraries in 2022

Most popular Mocking framework for unit tests written in Java

Android Unit Testing Framework

PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.

A Java architecture test library, to specify and assert architecture rules in plain Java

EqualsVerifier can be used in Java unit tests to verify whether the contract for the equals and hashCode methods is met.

A collection of small exercises in the form of unit tests, designed to get Java developers up to speed on Groovy

Webtau (short for web test automation) is a testing API, command line tool and a framework to write unit, integration and end-to-end tests. Test across REST-API, Graph QL, Browser, Database, CLI and Business Logic with consistent set of matchers and concepts. REPL mode speeds-up tests development. Rich reporting cuts down investigation time.

🎯 LogCaptor captures log entries for unit testing purposes

A demo of using robolectric to do unit testing

Testing Java JUnit 5 with Mockito

Mockito TestNG support

Spring Unit Testing with JUnit and Mockito