asp.net-core-identity 相关问题

我有以下代码。我正在尝试运行创建用户的测试用例。以下是我到目前为止所尝试的。公共类 CreateUserCommandHandlerTest { 私人模拟我有以下代码。我正在尝试运行创建用户的测试用例。以下是我到目前为止所尝试的。 public class CreateUserCommandHandlerTest { private Mock<UserManager<ApplicationUser>> _userManager; private CreateUserCommandHandler _systemUnderTest; public CreateUserCommandHandlerTest() { _userManager = MockUserManager.GetUserManager<ApplicationUser>(); var user = new ApplicationUser() { UserName = "ancon1", Email = "[email protected]", RoleType = RoleTypes.Anonymous }; _userManager .Setup(u => u.CreateAsync(user, "ancon2")).ReturnsAsync(IdentityResult.Success); _systemUnderTest = new CreateUserCommandHandler(_userManager.Object); } [Fact] public async void Handle_GivenValidInput_ReturnsCreatedResponse() { var command = new CreateUserCommand { Username = "ancon1", Email = "[email protected]", Password = "ancon2", RoleType = RoleTypes.Anonymous }; var result = await _systemUnderTest.Handle(command, default(CancellationToken)); Assert.NotNull(result); Assert.IsType<Application.Commands.CreatedResponse>(result); } } 我的用户经理在这里： public static class MockUserManager { public static Mock<UserManager<TUser>> GetUserManager<TUser>() where TUser : class { var store = new Mock<IUserStore<TUser>>(); var passwordHasher = new Mock<IPasswordHasher<TUser>>(); IList<IUserValidator<TUser>> userValidators = new List<IUserValidator<TUser>> { new UserValidator<TUser>() }; IList<IPasswordValidator<TUser>> passwordValidators = new List<IPasswordValidator<TUser>> { new PasswordValidator<TUser>() }; userValidators.Add(new UserValidator<TUser>()); passwordValidators.Add(new PasswordValidator<TUser>()); var userManager = new Mock<UserManager<TUser>>(store.Object, null, passwordHasher.Object, userValidators, passwordValidators, null, null, null, null); return userManager; } } 我的命令处理程序是这样的： public class CreateUserCommandHandler : IRequestHandler<CreateUserCommand, BaseCommandResponse> { private readonly UserManager<ApplicationUser> _userManager; public CreateUserCommandHandler(UserManager<ApplicationUser> userManager) { _userManager = userManager; } public async Task<BaseCommandResponse> Handle(CreateUserCommand createUserCommand, CancellationToken cancellationToken) { var user = new ApplicationUser { UserName = createUserCommand.Username, Email = createUserCommand.Email, RoleType = createUserCommand.RoleType }; var result = await _userManager.CreateAsync(user, createUserCommand.Password); if (result.Succeeded) { return new CreatedResponse(); } ErrorResponse errorResponse = new ErrorResponse(result.Errors.Select(e => e.Description).First()); return errorResponse; } } 当我运行测试时，它失败并显示对象引用未设置为对象的瞬间。我在这里做错了什么？？我知道这已经有几个月了，但我一直回到这个话题。我将扩展我自己关于这个主题的答案，因为仅仅指向 Haok 的 GitHub 示例就像在说：“读一本书”，因为它很大。它没有指出问题以及您需要做什么。您需要隔离一个 Mock 对象，但不仅如此，您还需要“设置”“CreateAsync”方法。所以让我们把它分成三个部分：如果您使用 MOQ 或类似的框架来模拟创建 UserManager，则需要 MOCK。您需要设置您希望从中获取结果的 UserManager 方法。您可能希望从模拟的 Entity Framework Core 2.1 或类似版本中注入一些通用列表，以便您可以实际看到 IDentity 用户列表实际增加或减少。不仅仅是 UserManager 成功了，其他什么都没有所以说我有一个返回模拟 UserManager 的辅助方法。与 Haok 代码略有不同： public static Mock<UserManager<TUser>> MockUserManager<TUser>(List<TUser> ls) where TUser : class { var store = new Mock<IUserStore<TUser>>(); var mgr = new Mock<UserManager<TUser>>(store.Object, null, null, null, null, null, null, null, null); mgr.Object.UserValidators.Add(new UserValidator<TUser>()); mgr.Object.PasswordValidators.Add(new PasswordValidator<TUser>()); mgr.Setup(x => x.DeleteAsync(It.IsAny<TUser>())).ReturnsAsync(IdentityResult.Success); mgr.Setup(x => x.CreateAsync(It.IsAny<TUser>(), It.IsAny<string>())).ReturnsAsync(IdentityResult.Success).Callback<TUser, string>((x, y) => ls.Add(x)); mgr.Setup(x => x.UpdateAsync(It.IsAny<TUser>())).ReturnsAsync(IdentityResult.Success); return mgr; } 关键是我正在注入一个通用的“TUser”，这也是我将要测试的内容，并注入一个列表。类似于我的例子： private List<ApplicationUser> _users = new List<ApplicationUser> { new ApplicationUser("User1", "[email protected]") { Id = 1 }, new ApplicationUser("User2", "[email protected]") { Id = 2 } }; ... private _userManager = MockUserManager<ApplicationUser>(_users).Object; 最后我正在使用类似于我要测试的实现的存储库来测试模式： public async Task<int> CreateUser(ApplicationUser user, string password) => (await _userManager.CreateAsync(user, password)).Succeeded ? user.Id : -1; 我这样测试： [Fact] public async Task CreateAUser() { var newUser = new ApplicationUser("NewUser", "[email protected]"); var password = "P@ssw0rd!"; var result = await CreateUser(newUser, password); Assert.Equal(3, _users.Count); } 我所做的关键是，我不仅“设置”了 CreateAsync，而且提供了一个回调，这样我实际上可以看到我注入的列表增加了。希望这对某人有帮助。 aspnet/Identity 是开源的，所以你能做的就是看看他们自己如何模拟它。他们是这样做的：MockHelpers.cs 测试用户管理器 public static UserManager<TUser> TestUserManager<TUser>(IUserStore<TUser> store = null) where TUser : class { store = store ?? new Mock<IUserStore<TUser>>().Object; var options = new Mock<IOptions<IdentityOptions>>(); var idOptions = new IdentityOptions(); idOptions.Lockout.AllowedForNewUsers = false; options.Setup(o => o.Value).Returns(idOptions); var userValidators = new List<IUserValidator<TUser>>(); var validator = new Mock<IUserValidator<TUser>>(); userValidators.Add(validator.Object); var pwdValidators = new List<PasswordValidator<TUser>>(); pwdValidators.Add(new PasswordValidator<TUser>()); var userManager = new UserManager<TUser>(store, options.Object, new PasswordHasher<TUser>(), userValidators, pwdValidators, new UpperInvariantLookupNormalizer(), new IdentityErrorDescriber(), null, new Mock<ILogger<UserManager<TUser>>>().Object); validator.Setup(v => v.ValidateAsync(userManager, It.IsAny<TUser>())) .Returns(Task.FromResult(IdentityResult.Success)).Verifiable(); return userManager; } 在 .NetCore 2.2 中，您必须做一些稍微不同的事情。将其视为@Nick Chapsas 答案的更新。首先，你必须使用IUserPasswordStore而不是IUserStore。 IUserPasswordStore继承了IUserStore，但是UserManager想要获取IUserPasswordStore。换句话说，有些事情就行不通了。如果您想测试 UserManager 的真实行为（例如 CreateUserAsync），您可以使用 UserValidator 和 PasswordValidator 的真实实现。您可能只是想确保您的方法对 CreateUser 错误做出应有的反应。这是我更新的示例： UserManager<TUser> CreateUserManager() where TUser : class { Mock<IUserPasswordStore<TUser>> userPasswordStore = new Mock<IUserPasswordStore<TUser>>(); userPasswordStore.Setup(s => s.CreateAsync(It.IsAny<TUser>(), It.IsAny<CancellationToken>())) .Returns(Task.FromResult(IdentityResult.Success)); var options = new Mock<IOptions<IdentityOptions>>(); var idOptions = new IdentityOptions(); //this should be keep in sync with settings in ConfigureIdentity in WebApi -> Startup.cs idOptions.Lockout.AllowedForNewUsers = false; idOptions.Password.RequireDigit = true; idOptions.Password.RequireLowercase = true; idOptions.Password.RequireNonAlphanumeric = true; idOptions.Password.RequireUppercase = true; idOptions.Password.RequiredLength = 8; idOptions.Password.RequiredUniqueChars = 1; idOptions.SignIn.RequireConfirmedEmail = false; // Lockout settings. idOptions.Lockout.DefaultLockoutTimeSpan = TimeSpan.FromMinutes(5); idOptions.Lockout.MaxFailedAccessAttempts = 5; idOptions.Lockout.AllowedForNewUsers = true; options.Setup(o => o.Value).Returns(idOptions); var userValidators = new List<IUserValidator<TUser>>(); UserValidator<TUser> validator = new UserValidator<TUser>(); userValidators.Add(validator); var passValidator = new PasswordValidator<TUser>(); var pwdValidators = new List<IPasswordValidator<TUser>>(); pwdValidators.Add(passValidator); var userManager = new UserManager<TUser>(userPasswordStore.Object, options.Object, new PasswordHasher<TUser>(), userValidators, pwdValidators, new UpperInvariantLookupNormalizer(), new IdentityErrorDescriber(), null, new Mock<ILogger<UserManager<TUser>>>().Object); return userManager; } 请注意，如果您想从 UserManager 测试 CreateAsync，则应模拟 UserPasswordStore 有一个方法 (CreateAsync)。密码和锁定设置取自我的项目。它们应该与您的设置保持同步，以便您可以测试真实的东西。当然你不会测试例如PasswordValidator，但你可以测试你的方法，例如： //Part of user service public async Task<IdentityResult> Register(UserDto data) { SystemUser user = ConvertDtoToUser(data); IdentityResult result = userManager.CreateAsync(user, data.Password); //some more code that is dependent on the result }

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