C++ Testing

Introduction to C++ Testing

Testing is a crucial aspect of software development, ensuring that code behaves as expected. In C++, popular testing frameworks include Google Test and Catch2. These frameworks simplify the process of writing and running tests. Additionally, using CMake can streamline the build process, especially when dealing with large projects.

Setting Up Google Test with CMake

To start using Google Test with CMake, you'll need to download the Google Test library and configure CMake to include it. Here is a simple step-by-step guide:

Once Google Test is built, you can integrate it into your project by modifying your CMakeLists.txt file:

In this setup, MyTest is your test executable, and test.cpp contains your test cases. Ensure that the googletest directory is correctly specified in the add_subdirectory command.

Writing Tests with Google Test

Here's a simple example of a test case written using Google Test:

Setting Up Catch2 with CMake

Catch2 is another excellent C++ testing framework. To set it up using CMake, follow these steps:

Modify your project's CMakeLists.txt to use Catch2:

Writing Tests with Catch2

Below is a simple example of a test case using Catch2:

Conclusion

By using frameworks like Google Test and Catch2 with CMake, you can efficiently manage and automate your testing process. Whether you choose Google Test or Catch2 depends on your project's specific needs and your personal preference.