Is UnitOfWork and GenericRepository Pattern redundant In EF 4.1 code first?

Question

Wondering if I need to use the Genericrepository pattern and UnitOfWork to mock the repository.I am using MOQ.Is it now redundant since I have noticed that EF 4.1 has IDBSet

Answer 1

public class MockDbSet : IDbSet where T : class,  new()
    {
        private List _entities;

        public MockDbSet(List entities)
        {
            _entities = entities;
        }

        public virtual T Add(T entity)
        {
            _entities.Add(entity);
            return entity;
        }

        public virtual T Attach(T entity)
        {
            _entities.Add(entity);
            return entity;
        }

        public TDerivedEntity Create() where TDerivedEntity : class, T
        {
            return new T() as TDerivedEntity;
        }

        public virtual T Create()
        {
            return new T();
        }

        public virtual T Find(params object[] keyValues)
        {
            throw new NotImplementedException();
        }

        public System.Collections.ObjectModel.ObservableCollection Local
        {
            get
            {
                return new ObservableCollection(_entities);
            }
        }

        public virtual T Remove(T entity)
        {
            _entities.Remove(entity);
            return entity;
        }

        public IEnumerator GetEnumerator()
        {
            return _entities.GetEnumerator();
        }

        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
        {
            return _entities.GetEnumerator();
        }

        public Type ElementType
        {
            get { return _entities.AsQueryable().ElementType; }
        }

        public System.Linq.Expressions.Expression Expression
        {
            get { return _entities.AsQueryable().Expression; }
        }

        public IQueryProvider Provider
        {
            get { return _entities.AsQueryable().Provider; }
        }
    }