JUnit
| JUnit | |
|---|---|
| Developers | Kent Beck, Erich Gamma, David Saff |
| Stable release | 6.0.1
/ October 31, 2025 |
| Written in | Java |
| Operating system | Cross-platform |
| Type | Unit testing tool |
| License | Eclipse Public License 2.0 (relicensed previously) |
| Website | junit |
| Repository | |
JUnit is a test automation framework for the Java programming language. JUnit is often used for unit testing, and is one of the xUnit frameworks.
JUnit is linked as a JAR at compile-time. The latest version of the framework, JUnit 6, resides under package org.junit.jupiter. Previous versions JUnit 4 and JUnit 3 were under packages org.junit and junit.framework, respectively.
A research survey performed in 2013 across 10,000 Java projects hosted on GitHub found that JUnit (in a tie with slf4j-api) was the most commonly included external library. Each library was used by 30.7% of projects.