Dependency Injection: Forbid AI from Hardcoding Instantiation, Improve Testability and Extensibility
When AI writes code, it loves the “fastest way to make it run” approach, for example: db = Database() cache = RedisCache() mailer = EmailService() service = UserService() Create wherever needed. In the short term it’s convenient, but as the project grows larger, you end up with: Database instances created everywhere Cache clients created everywhere Configuration scattered Services instantiating each other Dependencies impossible to replace during testing The most obvious problem with this kind of code is: Objects hardcode their own dependencies. And DI (Dependency Injection) is exactly what solves this problem. ...