使用 Identity 2.0 数据库进行 Moq 模拟

我在基于简单成员资格数据库的 MVC 5、Entity Framework 6 应用程序中使用 Moq 模拟针对 BusAct 控制器成功设置了集成测试。但现在我已经将数据库迁移到Identity 2.0，并将UserProfile替换为ApplicationUser。

IdentityDbContext：（从简单成员资格 DbContext 修改）

  public class MyDb : IdentityDbContext<ApplicationUser> // DbContext  
  {
    public MyDb () : base("MyApplication") { }

    // public virtual DbSet<UserProfile> UserProfiles { get; set; }
    public virtual DbSet<BusAcnt> BusAcnts { get; set; } // marking as virtual allows mocking override
    public virtual DbSet<...>
    ...

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
      base.OnModelCreating(modelBuilder);
      modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
    }
  }

模拟数据库设置：

  public class MockDbSetup
  {
    public static Mock<MyDb> MockMyDb()
    {
      var dataBa = new List<BusAcnt>  {
        new BusAcnt {Id = 0, CmpnyName = "Company 1", NmOfc = 1, Status = "Active"},
        new BusAcnt {Id = 1, CmpnyName = "Company 2", NmOfc = 1, Status = "Active"},
        new BusAcnt {Id = 2, CmpnyName = "Company 3", NmOfc = 1, Status = "Active"},
        new BusAcnt {Id = 3, CmpnyName = "Company 4", NmOfc = 1, Status = "Active"},
        new BusAcnt {Id = 4, CmpnyName = "Company 5", NmOfc = 1, Status = "Active"},
        new BusAcnt {Id = 5, CmpnyName = "Company 6", NmOfc = 1, Status = "Active"}
      }.AsQueryable();
      var mockSetBa = new Mock<DbSet<BusAcnt>>();
      mockSetBa.As<IQueryable<BusAcnt>>().Setup(m => m.Provider).Returns(dataBa.Provider);
      mockSetBa.As<IQueryable<BusAcnt>>().Setup(m => m.Expression).Returns(dataBa.Expression);
      mockSetBa.As<IQueryable<BusAcnt>>().Setup(m => m.ElementType).Returns(dataBa.ElementType);
      mockSetBa.As<IQueryable<BusAcnt>>().Setup(m => m.GetEnumerator()).Returns(dataBa.GetEnumerator());
      var MyDb = new Mock<MyDb>();
      mockMyDb.Setup(c => c.BusAcnts).Returns(mockSetBa.Object);
      return mockMyDb;
    }
  }

集成测试：

[Fact]
public void GetAllBusAcnt()
{
  var mockMyDb = MockDBSetup.MockMyDb();
  var controller = new BusAcntController(mockMyDb.Object);
  var controllerContextMock = new Mock<ControllerContext>();
  controllerContextMock.Setup(
      x => x.HttpContext.User.IsInRole(It.Is<string>(s => s.Equals("admin")))
      ).Returns(true);
  controller.ControllerContext = controllerContextMock.Object;

  var viewResult = controller.Index() as ViewResult;
  var model = viewResult.Model as PagedBusIdxModel;

  Assert.NotNull(model);
  Assert.Equal(6, model.BusAcnts.ToList().Count());
  Assert.Equal("Company 2", model.BusAcnts.ToList()[1].CmpnyName);
}

当我现在运行测试时，我收到以下错误：

System.Data.Entity.ModelConfiguration.ModelValidationExceptionOne or more validation errors were detected during model generation:

Castle.Proxies.IdentityUserRole: : EntityType 'IdentityUserRole' has no key defined. Define the key for this EntityType.
Castle.Proxies.IdentityUserLogin: : EntityType 'IdentityUserLogin' has no key defined. Define the key for this EntityType.
IdentityUserRoles: EntityType: EntitySet 'IdentityUserRoles' is based on type 'IdentityUserRole' that has no keys defined.
IdentityUserLogins: EntityType: EntitySet 'IdentityUserLogins' is based on type 'IdentityUserLogin' that has no keys defined.
   at System.Data.Entity.Core.Metadata.Edm.EdmModel.Validate()
   at System.Data.Entity.DbModelBuilder.Build(DbProviderManifest providerManifest, DbProviderInfo providerInfo)
   at System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection)
   at System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext)
   at System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input)
   at System.Data.Entity.Internal.LazyInternalContext.InitializeContext()
   at System.Data.Entity.Internal.InternalContext.CreateObjectContextForDdlOps()
   at System.Data.Entity.Database.Exists()
   at Microsoft.AspNet.Identity.EntityFramework.IdentityDbContext`1.IsIdentityV1Schema(DbContext db)
   at Microsoft.AspNet.Identity.EntityFramework.IdentityDbContext`1..ctor(String nameOrConnectionString, Boolean throwIfV1Schema)
   at Microsoft.AspNet.Identity.EntityFramework.IdentityDbContext`1..ctor(String nameOrConnectionString)
   at MyApplication.Models.MyDb..ctor() in MyDb.cs: line 9
   at Castle.Proxies.MyDbProxy..ctor(IInterceptor[])

我相信我需要修改 MockDbSetup 但无法找到有关如何执行此操作的任何信息。

我尝试添加

  var dataUsr = new List<ApplicationUser>
  {
    new ApplicationUser { UserName = "Test", PasswordHash = "a123cdefg"} }.AsQueryable();
  var mockSetUsr = new Mock<DbSet<ApplicationUser>>();
  mockSetUsr.As<IQueryable<BusAcnt>>().Setup(m => m.Provider).Returns(dataUsr.Provider);
  mockSetUsr.As<IQueryable<BusAcnt>>().Setup(m => m.Expression).Returns(dataUsr.Expression);
  mockSetUsr.As<IQueryable<BusAcnt>>().Setup(m => m.ElementType).Returns(dataUsr.ElementType);
  mockSetUsr.As<IQueryable<BusAcnt>>().Setup(m => m.GetEnumerator()).Returns(dataUsr.GetEnumerator()); 

但我收到“无法解决”错误GetEnumerator

也没有

  mockMyDb.Setup(c => c.AspNetUsers).Returns(mockSetUsr.Object);  

or

  mockMyDb.Setup(c => c.ApplicationUser).Returns(mockSetUsr.Object);

有效，因为它无法解决AspNetUsers or ApplicationUser.

有谁知道如何做到这一点，有关模拟 Identity 2.0 数据库的文档链接会特别有帮助吗？

感谢杰米和安德烈亚斯的回答测试框架表示实体没有为内置实体定义键。 https://stackoverflow.com/questions/22907581/testing-framework-says-entity-has-no-key-defined-for-built-in-entity

In the MockMyDb()中的方法MockDbSetup add { CallBase = true }; to var MyDb = new Mock<MyDb>();导致

var MyDb = new Mock<MyDb>() { CallBase = true };