Question

我正在尝试使用NUnit和Moq编写单元测试。我在我的项目中使用LINQ to SQL。

首先，我创建了一个与本博客中的包装类相似的包装类

http://andrewtokeley.net/archive/2008/07/06/mocking-linq-to-sql-datacontext.aspx

这是我的代码

[Test]
public void MakeModelsListTest()
{
    var objTbl1 = new List<tblSomeTable> 
        {                 
            new tblSomeTable { Make = "Nissan", Model = "Rogue"},
            new tblSomeTable { Make = "Hyundai", Model= "Elantra GT"},
            new tblSomeTable { Make = "Ram", Model="Ram Pickup 3500"},
            new tblSomeTable { Make = "Ford", Model="Freestar"},
            new tblSomeTable { Make = "Chrysler", Model="Aspen Hybrid"},
            new tblSomeTable { Make = "Buick", Model="Verano"}            
        }.AsQueryable();

    var objDataContext = new Mock<DataContextWrapper<CarvanaDataContext>>();
    var dbContext = objDataContext.As<IDataContextWrapper>();

    dbContext.Setup(i => i.Table<tblSomeTable>()).Returns(objTbl1);            

    MpcController objMpc = new MpcController();
    AutoTraderMakeModels makeModels = objMpc.MakeModels( objDataContext.Object);

    Assert.That(makeModels, Is.InstanceOf(typeof(AutoTraderMakeModels)));
    Assert.That(makeModels.results.Count(), Is.GreaterThan(0));
    Assert.That(makeModels.results[0].models.Count(), Is.GreaterThan(0));
}

在这一行

AutoTraderMakeModels makeModels = objMpc.MakeModels( objDataContext.Object);

我收到此错误

“System.Collections.Generic.KeyNotFoundException”类型的异常   发生在mscorlib.dll中但未在用户代码中处理

附加信息：给定的密钥不在   字典。

我不确定我做错了什么。我是Moq的新手。请提出建议！

如何创建datacontext包装类的moq

0 个答案: