Faking the repository

gistfile1.cs

    public static class RepositoryFakes
    {
         public static IRepository<T> AsRepository<T>(this IList<T> list) where T : Entity
         {
             IQueryable<T> queryable = list.AsQueryable();
             return Mock.Of<IRepository<T>>(x => x.Expression == queryable.Expression
                                                 && x.ElementType == queryable.ElementType
                                                 && x.Provider == queryable.Provider);
         }
    }