...GoogleTest features an xUnit test framework, a rich set of assertions, user-defined assertions, death tests, among many others. It's been used on a variety of platforms, including Cygwin, Symbian, MinGW and PlatformIO.
STUBborn C is a tool that allows you to create a module test framework for SW modules developed in C. The framework includes: Stubs needed to link the module; A sample Makefile to build, run tests and check code coverage; Test templates using CUnit.