Add unit tests

[htrgouvea]

The integration of unit testing is not merely a best practice but a crucial step toward ensuring the reliability and resilience of our codebase. By conducting targeted tests on individual components, we fortify our project against bugs, elevate code stability, and lay the foundation for seamless collaboration.

Unit testing offers early bug detection, instills confidence during refactoring, and serves as living documentation for our code. In our context, it translates to enhanced code quality, improved collaboration, and accelerated development.

To kickstart this process, let's identify critical components, select a fitting testing framework, craft comprehensive test cases, and seamlessly integrate tests into our CI/CD pipeline.