Top Mocking Libraries for Java

mockito-core · Mockito mock objects library core API and implementation

WireMock · A web service test double for all occasions

WireMock · A web service test double for all occasions - standalone edition

WireMock · A web service test double for all occasions - standalone edition

WireMock · A web service test double for all occasions

MockServer · A simple server to support mocking responses from any server / service that uses HTTP. The expectations that configure how the MockServer will respond and to incoming requests can be setup using any language that can create JSON. In simple client is provided to make this easy in Java.

moco-core · Moco is an easy setup stub framework, mainly focusing on testing and integration.

PowerMock · PowerMock support module for JUnit 4.x.

PowerMock · Various utilities for accessing internals of a class.

${project.artifactId} · The mocking framework-specific interfaces to PowerMock.

JMockit · JMockit is a Java toolkit for automated developer testing. It contains APIs for the creation of the objects to be tested, for mocking dependencies, and for faking external APIs; JUnit (4 & 5) and TestNG test runners are supported. It also contains an advanced code coverage tool.