Web Development with Node.JS and MongoDB (Video 27)

The video tutorial covers the fundamentals of unit testing and test-driven development (TDD), explaining their importance in software development. It discusses the process of writing unit tests, the cycle of TDD, and the benefits of testing, such as early bug detection and improved code understanding. The tutorial also highlights the importance of refactoring and the challenges associated with testing, emphasizing that testing should be integrated into the coding process. The video concludes by encouraging viewers to adopt automatic testing practices.

What does refactoring mean in the context of software development?

How can unit tests provide documentation on how units work?

What should be kept in mind regarding the reliability of unit tests?