Mocking or faking DbEntityEntry or creating a new DbEntityEntry

Question

Following on the heels of my other question about mocking DbContext.Set I\'ve got another question about mocking EF Code First.

I now have a method for my update tha

Answer 1

Just like the other case, what you need is to add an additional level of indirection:

interface ISalesContext
{
    IDbSet GetIDbSet();
    void SetModified(object entity)
}

class SalesContext : DbContext, ISalesContext
{
    public IDbSet GetIDbSet()
    {
        return Set();
    }

    public void SetModified(object entity)
    {
        Entry(entity).State = EntityState.Modified;
    }
}

So, instead of calling the implementation, you just call SetModified.