This is a console app that prints list of horses by price in ascending order

New adapters can be plugged in when a new file type comes in.

In real work, this would be invoking different services either in a loop or based on certain settings. They just have to be plugged in and instantiated automaticallu.

For the sake of this test, I've assumed that I can differentiate the files by their filetypes and used a strategy to choose the implementation of the respective Adapter.

Services and renderers can be extended to add new services by just implementing the IService and IRenderer interfaces.

There is no need to modify existing work flow.

To run unit tests, just open the application in visual studio and run them using TestAdapter or a xUnit runner of your choice

For the sake of this interview, I've made it easier to run by pressing ctrl + F5. The application uses the default files provided