Leyla Karzand’s Reviews > Architecture Patterns with Python: Enabling Test-Driven Development, Domain-Driven Design, and Event-Driven Microservices > Status Update

"Hee hee hee, no foreign keys, just strings, YOLO!"

Rule of thumb: if you can’t describe ?hat your function does ?ithout using ?ords like “then” or “and,” you might be violating the SRP [Single Responsibility Principle].

"You may have come across the use of the word collaborators to describe objects that work together to achieve a goal. The unit of work and the repository are a great example of collaborators in the object-modeling sense. In responsibility-driven design, clusters of objects that collaborate in their roles are called object neighborhoods, which is, in our professional opinion, totally adorable."

"We view TDD as a design practice first and a testing practice second. The tests act as a record of our design choices and serve to explain the system to us when we return to the code after a long absence."