mockito

Most popular Mocking framework for unit tests written in Java

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Java
Mockito

Most popular mocking framework for Java

CI
Coverage Status
MIT License

Release Notes
Maven Central
Javadoc

Current version is 5.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 5 switches the default mockmaker to mockito-inline, and now requires Java 11.
Only one major version is supported at a time, and changes are not backported to older versions.

Mockito for enterprise

Available as part of the Tidelift Subscription.

The maintainers of org.mockito:mockito-core and thousands of other packages are working with Tidelift to deliver
commercial support and maintenance for the open source dependencies you use to build your applications. Save time,
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Learn more.

Development

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.