我的测试很简单,我只是想添加一个新的高尔夫球手

[TestClass]
public class GolferUnitTest //: GolferTestBase
{
    public MockGolfEntities _repository;

    [TestMethod]
    public void ShouldAddNewGolferToRepository()
    {
        _repository = new MockGolfEntities();

        _repository.Golfers = new InMemoryDbSet<Golfer>(CreateFakeGolfers());

        int count = _repository.Golfers.Count();
        _repository.Golfers.Add(_newGolfer);

        Assert.IsTrue(_repository.Golfers.Count() == count + 1);
    }

    private Golfer _newGolfer = new Golfer()
    {
        Index = 8,Guid = System.Guid.NewGuid(),FirstName = "Jonas",LastName = "PeRSSon"
    };
    public static IEnumerable<Golfer> CreateFakeGolfers()
    {
        yield return new Golfer()
        {
            Index = 1,FirstName = "Bill",LastName = "Clinton",Guid = System.Guid.NewGuid()
        };
        yield return new Golfer()
        {
            Index = 2,FirstName = "Lee",LastName = "Westwood",Guid = System.Guid.NewGuid()
        };
        yield return new Golfer()
        {
            Index = 3,FirstName = "Justin",LastName = "Rose",Guid = System.Guid.NewGuid()
        };
    }

我已经使用实体框架和代码优先建立了一个数据模型.我为IDbSet嘲笑一个派生类,以便测试我的上下文(对于在线的人来说,我完全不记得)

public class InMemoryDbSet<T> : IDbSet<T> where T : class
{
    readonly HashSet<T> _set;
    readonly IQueryable<T> _queryableSet;

    public InMemoryDbSet() : this(Enumerable.Empty<T>()) { }

    public InMemoryDbSet(IEnumerable<T> entities)
    {
        _set = new HashSet<T>();

        foreach (var entity in entities)
        {
            _set.Add(entity);
        }

        _queryableSet = _set.AsQueryable();
    }

    public T Add(T entity)
    {
        _set.Add(entity);
        return entity;

    }

    public int Count(T entity)
    {
        return _set.Count();
    }

    // bunch of other methods that I don't want to burden you with
}

当我调试并逐步通过代码时,我可以看到我实例化了_repository并填充了三个假的高尔夫球手,但是当我退出添加功能时,_respoistory.Golfers再次为空.当我添加一个新的高尔夫球手,_set.Add(实体)运行,并且添加了高尔夫球手,但是再次_respoistory.Golfers是空的.我在这里缺少什么？

更新

我很抱歉成为一个白痴,但是我没有在我的MockGolfEntities上下文中实现该集.我没有的原因是我以前尝试,但无法弄清楚如何,继续,忘记了.那么,如何设置一个IDbSet？这是我试过的,但它给我一个Stack Overflow错误.我觉得像一个白痴,但是我无法弄清楚如何写入set函数.

public class MockGolfEntities : DbContext,IContext
{
    public MockGolfEntities() {}

    public IDbSet<Golfer> Golfers { 
        get {
            return new InMemoryDbSet<Golfer>();
        }
        set {
            this.Golfers = this.Set<Golfer>();
        }
    }
}