cmocka is an elegant unit testing framework for C with support for mock
objects. It only requires the standard C library, works on a range of computing
platforms (including embedded) and with different compilers.

Features:
* Support for mock objects
* Only requires the C library
* Several supported output formats (Subunit, TAP, jUnit XML)
* Fully documented API
* Test fixtures
* Exception handling for signals (SIGSEGV, SIGILL, ...)
* No fork() used
* Very well tested
* Testing of memory leaks, buffer overflows and underflows.

Also, CMocka tries to avoid the use of some of the newer features of C
compilers.