ThrowTheSwitch/Unity

Unity Test is a lightweight unit testing framework built specifically for C, with a strong focus on embedded toolchains. It is designed to test code targeting microcontrollers of all sizes. The core framework consists of a single C file and a pair of headers, making it trivial to integrate into existing build setups without complex dependencies. Unity works with any compiler and can be used with build systems such as Make, CMake, and others. It is part of the ThrowTheSwitch ecosystem, which also includes the Ceedling build tool for managing test projects. Unity provides a comprehensive set of assertion macros for basic validity checks, numerical equality (integer and float, in various sizes and formats including hexadecimal), and memory comparisons, all outputting clear error messages upon failure.