c# - 如何在 Controller 中模拟 Automapper (IMapper)

Question

我正在尝试为我现有的 MVC Web 应用程序编写单元测试。因为我在 automapper (IMapper) 中遇到了一些问题，每当我使用 map 函数时，它都会返回 null 值。

我的 Controller 代码:

public class UserAdministrationController : BaseController
{
    private readonly iUserService _userService;
    private readonly IMapper _mapper;

    public NewsController(iUserService userService, IMapper mapper)
    {
        _userService = userService;
        _mapper = mapper;
    }

    public ActionResult Create(int CompanyID == 0)
    {            
        UserDetail data = _userService(CompanyID);
        var Modeldata = _mapper.Map<UserDetailViewModel, UserDetail>(data);
        return View(Modeldata);
    }
} 

模拟映射代码:

public class MappingDataTest : CommonTestData
{
    public Mock<IMapper> MappingData()
    {
        var mappingService = new Mock<IMapper>();
        UserDetailViewModel interview = getUserDetailViewModel(); // get value of UserDetailViewModel
        UserDetail im = getUserDetail(); // get value of UserDetails

        mappingService.Setup(m => m.Map<UserDetail, UserDetailViewModel>(im)).Returns(interview);
        mappingService.Setup(m => m.Map<UserDetailViewModel, UserDetail>(interview)).Returns(im);

        return mappingService;
    }
}

模拟代码:

[TestClass]
public class UserAdminControllerTest
{
    private MappingDataTest _common;

    [TestInitialize]
    public void TestCommonData()
    {
        _common = new MappingDataTest();
    }

    [TestMethod]
    public void UserCreate()
    {
        //Arrange                                               
        UserAdministrationController controller = new UserAdministrationController(_common.mockUserService().Object, _common.MappingData().Object);
        controller.ControllerContext = _common.GetUserIdentity(controller);

        // Act
        ViewResult newResult = controller.Create() as ViewResult;

        // Assert
        Assert.IsNotNull(newResult);
    }
}

Mapper 不工作，它总是在 Controller 中显示 null 值。请帮助我。提前致谢。

Answer 1

我建议不要模拟 AutoMapper。一个 Controller 单元测试没有太大值(value)，这类似于模拟 JSON 序列化程序。只需使用真实的东西即可。