Untitled

Setting Up MOQ Update Test
agg.Setup(a => a.InsertOnPersist<Thingy>(model)).Callback(() => mockThingies.Add(model));

agg.Setup(a => a.GetObjectStore<Artist>()).Returns(mockThingies.AsQueryable());

public List<Thingy> mockThingies; //this is our repository
 [TestInitialize]
 public void SetupTests()
 {
    mockThingies= new List<Thingy>();
    Thingy someThingy = new Thingy();
    someThingy.Name = "MyName";
    someThingy.ID = 1;
    mockThingies.Add(someThingy);
  }

    [TestMethod]
    public void CanEditExistingThingy()
    {
        Mock<BusinessExceptionBroadcaster> beb = new Mock<BusinessExceptionBroadcaster>();
        Mock<IValidationEngine> valid = new Mock<IValidationEngine>();
        Mock<IAggregate> agg = new Mock<IAggregate>();
        agg.Setup(a => a.GetObjectStore<Thingy>()).Returns(mockThingies.AsQueryable());
        ThingyRepository repo = new ThingyRepository (agg.Object);
        ThingyService service = new ThingyService (repo, beb.Object, valid.Object);
        Thingy newThingy = new Thingy();
        newThingy.ID = 1; //same as old
        newThingy.Name = "newname"; //new name
        Assert.AreNotEqual(newThingy.Name,mockThingies[0].Name);
        Assert.IsTrue(service.Update(newThingy));
        Assert.AreEqual(newThingy.Name, mockThingies[0].Name); //FAILS HERE
    }

public bool Update(Thingy entity)
    {
            Thingy existingThingy= _Thingy.FirstOrDefault(t=>t.ID == entity.ID);
            if (existingThingy != null)
            {
                _Thingy.PersistAll();
                return true;
            }
            else
            {
               //unimportant
            }
        }
        return false;
    }