Question

我有以下界面及其存储库类

界面

public interface IIdentityRepository
{
    bool CreateUser(ApplicationUser user, string password);
}

存储库

public class IdentityRepository : IIdentityRepository
{
    ApplicationDbContext dbContext;

    public IdentityRepository()
    {
        dbContext = new ApplicationDbContext(); // if none supplied
    }

    public bool CreateUser(ApplicationUser user, string password)
    {
        var userManager = new UserManager<ApplicationUser>(
            new UserStore<ApplicationUser>(dbContext));
        var idResult = userManager.Create(user, password);

        return idResult.Succeeded;
    }    
}

public class UserManager : UserManager<ApplicationUser>
{
    public UserManager()
        : base(new UserStore<ApplicationUser>(new ApplicationDbContext()))
    {
    }
}

这是我尝试为CreateUser方法编写的测试类在这种方法中，我使用AppplicationUser作为我的模型。

[TestClass]
public class IdentityRepositoryTest
{
    private IdentityRepository _identitityRepo;
    private Mock<IIdentityRepository> _identitityRepository;

    private List<ApplicationUser> _users;


    // initialize the test class
    [TestInitialize]
    public void TestSetup()
    {
        _identitityRepository = new Mock<IIdentityRepository>();
        _users = new List<ApplicationUser>();

        _identitityRepository.Setup(m => m.CreateUser(It.IsAny<ApplicationUser>())).Callback<ApplicationUser>(c => _users.CreateUser(c));

        _identitityRepo = new IdentityRepository();
    }

    #region Users

    // check valid number of user/s(1) existing in current DB
    [TestMethod]
    public void IsValidtNumberofUsersExist()
    {
        // Arrange           
        _users.Add(new ApplicationUser { UserName = "Kez" , Email = "kez@gmail.com" });

        // Act
        var result = _identitityRepo.GetAllUsers();
        Assert.IsNotNull(result);

        // Assert
        var numberOfRecords = result.ToList().Count;
        Assert.AreEqual(1, numberOfRecords);
    }

    #endregion
}

但是在这里我遇到了编译时错误

编辑：

一旦我更改了上面的错误行，如下错误就消失了。

_identitityRepository.Setup(m => m.CreateUser(It.IsAny<ApplicationUser>(),"password")).Callba‌ck<ApplicationUser>(‌c => _users.Add(c));

但是当我运行此测试时，我收到了以下错误

结果消息：初始化方法 ProjectName.UnitTest.Common.IdentityRepositoryTest.TestSetup扔了例外。 System.ArgumentException：System.ArgumentException：无效打回来。使用参数设置方法（ApplicationUser，String）无法使用参数调用回调（ApplicationUser）..

Answer 1

_identitityRepository.Setup(m => m.CreateUser(It.IsAny<ApplicationUser>(),"password"))
    .Callba‌ck<ApplicationUser>(‌c => _users.Add(c));

应该是：

_identitityRepository.Setup(m => m.CreateUser(It.IsAny<ApplicationUser>(),"password"))
    .Callba‌ck<ApplicationUser, string>(‌(c, s) => _users.Add(c));

https://github.com/Moq/moq4/wiki/Quickstart#callbacks

在存储库模式中使用mock编写单元测试

1 个答案: