Testing C code with GoogleTest

A sample project about testing C code with GoogleTest. Used the Quickstart guide for building with CMake as a reference.

Prerequisites

• CMake (for macOS install from Homebrew with brew install cmake)
• C compiler (for macOS included with Xcode)

How-to

1. Make build directory with mkdir build.
2. Build the main and tests with

cmake -S . -B build
cmake --build build

3. Go into the build directory with cd build.
   • Run main with ./main.
   • Run tests with ctest.

C programming 101

• main.c for the main function
• source.h for defining interfaces (name as you wish)
  • Remember to use include guards! :)
• source.c for implementing the functions

Testing

• Write tests into test folder, use .cc file extension
• Modify CMakeLists.txt as needed when changing the source and test file names
• C source files need to be included inside extern "C".
• Assertions list in GoogleTest documentation