Question

我有一个Base Repository，所有Entities存储库都继承了它。

在我的睾丸中，我创建了一个Fake DbContext和Fake DbSet来测试我的存储库，但是当我在FakeDbContext中实现一些方法时，我无法实现 IDbContext.Entry 方法：

public class FakeDbContext : IDbContext
{
    private IDbSet<Usuario> _usuario;
    private IDbSet<Atividade> _atividade;
    private IDbSet<Autor> _autor;
    private IDbSet<CategoriaModulo> _categoriaModulo;
    private IDbSet<CategoriaMateria> _categoriaMateria;
    private IDbSet<Site> _site;
    private IDbSet<Modulo> _modulo;
    private IDbSet<Perfil> _perfil;
    private IDbSet<CategoriaGaleriaImagem> _categoriaGaleriaImagem;

    public IDbSet<Usuario> Usuario { get { return _usuario ?? (_usuario = new FakeDbSet<Usuario>()); } set { } }
    public IDbSet<Atividade> Atividade { get { return _atividade ?? (_atividade = new FakeDbSet<Atividade>()); } set { } }
    public IDbSet<Autor> Autor { get { return _autor ?? (_autor = new FakeDbSet<Autor>()); } set { } }
    public IDbSet<CategoriaModulo> CategoriaModulo { get { return _categoriaModulo ?? (_categoriaModulo = new FakeDbSet<CategoriaModulo>()); } set { } }
    public IDbSet<CategoriaMateria> CategoriaMateria { get { return _categoriaMateria ?? (_categoriaMateria = new FakeDbSet<CategoriaMateria>()); } set { } }
    public IDbSet<Site> Site { get { return _site ?? (_site = new FakeDbSet<Site>()); } set { } }
    public IDbSet<Modulo> Modulo { get { return _modulo ?? (_modulo = new FakeDbSet<Modulo>()); } set { } }
    public IDbSet<Perfil> Perfil { get { return _perfil ?? (_perfil = new FakeDbSet<Perfil>()); } set { } }
    public IDbSet<CategoriaGaleriaImagem> CategoriaGaleriaImagem { get { return _categoriaGaleriaImagem ?? (_categoriaGaleriaImagem = new FakeDbSet<CategoriaGaleriaImagem>()); } set { } }

    public void SaveChanges()
    {
        //do nothing
    }

    public IDbSet<TEntity> Set<TEntity>() where TEntity : class
    {
        foreach (PropertyInfo property in typeof(FakeDbContext).GetProperties())
        {
            if (property.PropertyType == typeof(IDbSet<TEntity>))
                return property.GetValue(this, null) as IDbSet<TEntity>;
        }
        throw new Exception("Type collection not found");
    }

    public System.Data.Entity.Infrastructure.DbEntityEntry Entry<TEntity>(TEntity entity) where TEntity : class
    {
    }
}

我无法实施的最后一种方法，你们可以帮助我吗？

我正在使用此Entry方法更新基础存储库中的实体：

public abstract class BaseRepository<TEntity> : IBaseRepository<TEntity> where TEntity : class
    {
        #region Fields

        protected TEntity EntityType;
        protected IDbSet<TEntity> DbSet;

        #endregion

        #region Properties

        public IDbContext DbContext
        {
            get
            {
                return DbContextFactory.Instance.GetOrCreateContext();
            }
        }

        #endregion

        #region Constructors

        protected BaseRepository()
        {
            this.EntityType = DependencyResolverFactory.Instance.Get<TEntity>();
            this.DbSet = DbContext.Set<TEntity>();
        }

        #endregion

        #region Methods

        public virtual void Add(TEntity entity)
        {
            this.DbSet.Add(entity);
        }

        public virtual void Remove(TEntity entity)
        {
            this.DbSet.Remove(entity);
        }

        public virtual void RemoveById(object id)
        {
            TEntity entity = this.GetById(id);
            this.DbSet.Remove(entity);
        }

        public virtual void Edit(TEntity entity)
        {
            this.DbContext.Entry(entity).State = EntityState.Modified;
        }

        public virtual TEntity GetById(object id)
        {
            return (TEntity)this.DbSet.Find(id);
        }

        public virtual IList<TEntity> GetAll()
        {
            return ((IEnumerable<TEntity>)this.DbSet).ToList();
        }

        #endregion
    }

Answer 1

在继续之前阅读this以及所有相关问题。单元测试返回EF相关类或使用linq-to-entities的任何内容都是危险的。

放弃对您的存储库进行单元测试，而是通过自行伪造存储库来对您的应用程序逻辑进行单元测试。如果要测试存储库，请创建与真实数据库通信的集成测试。

假实体框架4.1的DbContext来测试我的存储库

1 个答案: