TDD C# class library creation practice

Design and implement a vending machine class library. Make it as clean, maintainable and production ready as possible.

• Vending machine has a catalogue of items
• Items can have different prices
• Vending machines can have different catalogue
• Vending machine can be refilled with new items
• Vending machine has an interface for buying items with money
• Some items are food
• Some items are drinks
• Some items are weapons
• Vending machine has debug logging
• As a developer it may be possible to inject different type of logger implementation to the vending machine class

• Tests with NUnit

• Must be .Net or .Net Core