In my previous post I talked about definitions of TDD as specified in different sources. Here in this post I'll walk-through applied Domain Driven Design & Test Driven Design on Entity Framework.
I assume that you already know Entity Framework and how to create your entity data modes using Visual Studio.Net 2008 with SP1.
Domain Driven Design & Entity Framework:
To simplify things, I am using Northwind database. Basically I'll expose 3 tables in this database, Categories, Products & Suppliers. Those will be my domain objects as Category,Product and Supplier classes.
Each Category object might contain one or more items of Product. Same thing for Supplier object as it might provide one or more items of Product. That means Product object must have a Supplier and a Category. I defined those criteria for my Domain Objects.