Developer(s) Tammo Freese Operating system | Written in Java Type Unit testing tool | |
Stable release 3.4 / 05 September 2015 (05 September 2015) Repository github.com/easymock/easymock | ||
EasyMock is an open source testing framework for Java released under the Apache License. The framework allows the creation of test double objects for the purpose of Test-driven Development (TDD) or Behavior Driven Development (BDD).
Contents
A research performed in 2013 on 10,000 GitHub projects found that EasyMock is the 32th most popular Java library.
Distinguishing features
The EasyMock provides dynamically generated Mock objects (at runtime), without having to implement them. In EasyMock, the definition of Mock Object is differed from using an implemented Mock Object. Mock objects are built at run time and additional implementations cannot be defined for those objects.
Origin
EasyMock was created by Tammo Freese in 2001 (at OFFIS). Originally it allowed only mock interfaces with type safe mocking and additional features were added in later developments.
Usage
EasyMock can be an ideal solution for application with often-changing interfaces.
Example
Simple currency exchange program is provided here. An interface may look like as follows:
Implementation for a concrete class may look like as follows:
Sample implementation for a test class may look like as follows: