Welcome to the next stage of mastering Test Driven Development (TDD) in C++, where we will focus on setting up a robust testing environment. As you have learned through the TDD process, the Red-Green-Refactor cycle involves writing a failing test, implementing just enough code to pass it, and refining the implementation. In this lesson, we will set up the necessary tools for testing with Google Test, guiding you on how to create an efficient C++ testing environment that complements the TDD cycle.

Google Test is a widely used framework for writing and running C++ tests. It provides a powerful setup for TDD in C++.

To start using Google Test with C++, you'll need to configure your development environment to include the Google Test library. This involves downloading Google Test and setting it up in your C++ project.

1. Download Google Test: Clone the Google Test repository from GitHub.

2. Add it to Your C++ Project: Integrate Google Test into your project's build system. If you are using CMake, you can add the following lines to your CMakeLists.txt file:

Running tests in is straightforward. You can compile your test files and then execute the created binary.