CTest is a testing framework designed for C++ programming. It provides a simple way to create and run unit tests, helping developers ensure their code works as intended. With features like test case organization and result reporting, CTest makes it easier to identify and fix bugs. CTest is often used in conjunction with CMake, a popular build system. Together, they streamline the development process by automating testing and building tasks. This integration allows developers to maintain high code quality and improve software reliability through consistent testing practices.