utest.h

Just #include "utest.h" with no external dependencies or complex build steps, making integration trivial as emphasized in the README's 'Usage' section.

Macros like ASSERT_* and EXPECT_* mirror Google's googletest syntax, easing adoption for developers familiar with that framework, as noted in the 'Design' section.

Works on Linux, macOS, and Windows with compilers like gcc, clang, and MSVC, ensuring consistent testing across diverse environments, per the 'Usage' section.

Includes options for test filtering, random execution order, and XML output for CI systems, enhancing workflow integration as detailed in the 'Command Line Options'.