TDD 用语

OOP
  封装
  继承
  多态

SOLID
  SRP 单一职责  Single Responsibility Principle
  OCP 开放封闭  Open/Close Principle
  LSP 里氏替换  Liskov Substitution Principle
  ISP 接口分离  Interface Segregation Principle
  DIP 依赖倒置  Dependency Inversion Principle