Minimizing the risk of formation bugs
TDD is a methodology that, in combination with BDD ((Behavior Driven Development) and DDD (Domain Driven Design), allows for continuous testing of the solution being developed and minimizing the risks associated with regressions and architectural changes.
Software development without using the TDD methodology is characterized by the fact that the programmer first writes a larger block of code and then tests it. Very often, an error will appear in the code. Detecting an error can last an hour, a few days or even a few months. By using TDD, most errors will be detected even before the code is introduced into the production environment. The use of the TDD methodology minimizes the extent of errors and saves both time and money.