Top 3 Open-Source Alternatives to CPPUnit

EasyMock provides dynamically generated Mock objects at runtime, without having to implement them.

Toxiproxy is a framework for simulating network conditions to prove with tests that the application doesn't have single points of failure.

Download JF Unittest for free. A C++ unittest framework, written out of frustration with the existing unittest frameworks out there. No GUI with colorful progress bars, no dependencies on any other package in the world.