In software development, test-driven development is a software development model that provides that the drafting of automatic tests takes place before that of the software to be tested, and that the development of the application software is exclusively oriented towards the goal of passing the automatic tests previously set up. How to do test-driven development using Java and spring boot technology with various tools explained in this book. In computer science, software development, test-driven development (in short TDD is a software development model, which provides that the drafting of the automatic testing occurs before the software that must be tested, and that the development of a software application is exclusively oriented to the goal of passing the automated tests you have previously prepared.