quality
JUnit is a unit testing framework to write and run repeatable automated tests on Java. It provides a robust environment to write, organize, and execute automated tests, ensuring code reliability and repeatability. Its user-friendly annotations and assert methods facilitate the development and running of test cases, making it a foundational tool for Java developers focusing on quality assurance and test-driven development.
Last Release on Feb 13, 2021
Relocated → org.junit.jupiter »
junit-jupiter-api
3. AssertJ Core22,027 usages
org.assertj » assertj-coreApache
Rich and fluent assertions for testing in Java
Last Release on Sep 22, 2025
ScalaTest is a flexible and popular testing tool in the Scala ecosystem. It can be used to test Scala, Scala.js, Scala Native, Dotty (Scala 3), and Java code.
Last Release on Jun 23, 2024
JSR305 Annotations for Findbugs
Last Release on Mar 31, 2017
Relocated → com.github.spotbugs »
spotbugs-annotations
Starter for testing Spring Boot applications with libraries including JUnit Jupiter, Hamcrest and Mockito
Last Release on Oct 23, 2025