在ASP.NET MVC中使用带有SQL Server DB的存储库模式;如何模拟存储库，使其单元可测试而不破坏OOD

I've been learning the ASP.NET MVC framework using the Apress book "Pro ASP.NET MVC Framework" by Steven Sanderson. To that end I have been trying out a few things on a project that I am not that familar with but are things that I thing I should be doing, namely:I've been learning the ASP.NET MVC framework us