Question

I have two implementation of context providers and I know there will be more to follow.
I would like to create interface to work for those entities in generic.

public class TDataProvider
    {
        public TEntities GetDataContext()
        {
            return new TTEntities();
        }
    }

public class TDataProvider
    {
        public TEntities GetDataContext()
        {
            return new TTEntities();
        }
    }

I want to use the interface that is mplemeneted in each case such as
But how do I implement followin inteface over the entity model generated by ADO.NET Entity Data Model?

public class IGetDataContext
    {
        T GetDataContext();
    }

Answer 1

Instead of creating interface on context I have created data access classes responsible for actions and created unit test against that.

Its the best I could think of.