Sample app which demonstrates the dependency inversion principle + dependency injection techniques using Autofac as DI Framework.
Shows a tightly-coupled implementation of a Switch and a Lamp. Whenever Switch is used, we need to deliver an instance of Lamp. Switch cannot be tested in isolation.
Switch and Lamp are abstracted by ISwitch and ISwitchable. The application resolves the ISwitch dependency using a dependency injection container. Switch can now be tested in isolation because it no longer depends on an implementation but on the abstraction ISwitchable.
