Top 10 Java Mocking Projects

Mockito

8 13,632 8.6 Java

Most popular Mocking framework for unit tests written in Java

Project mention: Wednesday Links - Edition 2023-01-18 | dev.to | 2023-01-18

Mockito 5 Released (1 min)🎉 https://github.com/mockito/mockito/releases/tag/v5.0.0
WireMock

1 5,327 7.8 Java

A tool for mocking HTTP services

Project mention: How to Boost Code Coverage with Functional Testing | reddit.com/r/Kotlin | 2022-11-01

Yes I agree, mocking is a bit of an overloaded term, and the libraries we used for stubbing like gRPC Mock and WireMock also have `mock` in their name, even though they are real servers with stubbing
InfluxDB

www.influxdata.com
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PowerMock

1 3,953 2.3 Java

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

Project mention: mooc.fi InaccessibleObjectException on Part 4 | reddit.com/r/learnjava | 2022-02-19

A little hunting suggests that it is the old version of powermock, used by the MOOC tests that is tripping up in JDK 16+ now that there are restrictions on accesses for internal methods.
Mockneat

6 506 1.3 Java

MockNeat - the modern faker lib.

Project mention: Favorite hidden gem library? | reddit.com/r/java | 2022-10-21
JMockit

0 439 0.0 Java

Advanced Java library for integration testing, mocking, faking, and code coverage
castlemock

0 260 6.5 Java

Castle Mock is a web application that provides the functionality to mock out RESTful APIs and SOAP web services.
Hoverfly Java

0 148 5.3 Java

Java binding for Hoverfly
Sonar

www.sonarsource.com
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grpcmock

1 96 10.0 Java

A gRPC Java testing tool to easily mock endpoints of gRPC services for IT or Unit testing

Project mention: How to Boost Code Coverage with Functional Testing | reddit.com/r/Kotlin | 2022-11-01

Yes I agree, mocking is a bit of an overloaded term, and the libraries we used for stubbing like gRPC Mock and WireMock also have `mock` in their name, even though they are real servers with stubbing
Retromock

0 58 2.5 Java

Java library for mocking responses in a Retrofit service.
mock-box

1 34 8.3 Java

Mock-Box is a lightweight and powerful mock library that supports testing.

Project mention: MockBox - lightweight mock library that supports testing | reddit.com/r/coolgithubprojects | 2022-08-18

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-01-18.