Code Quality Rank: L4
Programming language: Java
License: MIT License
Tags: Testing    
Latest version: v3.6.44

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Most popular mocking framework for Java

CI Coverage Status MIT License

Release Notes Maven Central Javadoc

Current version is 4.x

Still on Mockito 1.x? See what's new in Mockito 2! Mockito 3 does not introduce any breaking API changes, but now requires Java 8 over Java 6 for Mockito 2. Mockito 4 removes deprecated API.

Mockito for enterprise

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Mockito publishes every change as a -SNAPSHOT version to a public Sonatype repository. Roughly once a month, we publish a new minor or patch version to Maven Central. For release automation we use Shipkit library (http://shipkit.org), Gradle Nexus Publish Plugin. Fully automated releases are awesome, and you should do that for your libraries, too! See the latest release notes and latest documentation. Docs in javadoc.io are available 24h after release. Read also about semantic versioning in Mockito.

Older 1.x and 2.x releases are available in Central Repository and javadoc.io (documentation).

More information

All you want to know about Mockito is hosted at The Mockito Site which is Open Source and likes pull requests, too.

Want to contribute? Take a look at the Contributing Guide.

Enjoy Mockito!

Need help?

How to develop Mockito?

To build locally:

 ./gradlew build

To develop in IntelliJ IDEA you can use built-in Gradle import wizard in IDEA. Alternatively generate the importable IDEA metadata files using:

 ./gradlew idea

Then, open the generated *.ipr file in IDEA.

How to release new version?

  1. Every change on the main development branch is released as -SNAPSHOT version to Sonatype snapshot repo at https://s01.oss.sonatype.org/content/repositories/snapshots/org/mockito/mockito-core.
  2. In order to release a non-snapshot version to Maven Central push an annotated tag, for example:
git tag -a -m "Release 3.4.5" v3.4.5
git push origin v3.4.5
  1. At the moment, you may not create releases from GitHub Web UI. Doing so will make the CI build fail because the CI creates the changelog and posts to GitHub releases. We'll support this in the future.

*Note that all licence references and agreements mentioned in the Mockito README section above are relevant to that project's source code only.