Cgreen Library - Library tool

 A modern unit test and mocking framework for C and C++. Cgreen features
    - fast build, clean code, highly portable
    - simple auto-discovery of tests
    - fluent, expressive and readable API
    - each test runs in isolation to prevent cross-test dependencies
    - built-in mocking for C, compatible other C++ mocking librarie
 Provides the Unittest test tool