Google Test is described as 'Google's framework for writing C++ tests on a variety of platforms (Linux, Mac OS X, Windows, Cygwin, Windows CE, and Symbian). Based on the xUnit architecture. Supports automatic test discovery, a rich set of assertions, user-defined assertions, death tests, fatal and' and is a Unit Testing tool in the development category. There are five alternatives to Google Test for Windows, Linux, Mac and BSD. The best Google Test alternative is Tessy. It's not free, so if you're looking for a free alternative, you could try CPPUnit or Unity Test. Other great apps like Google Test are UquoniTest and Criterion.