如何模拟HttpContext.User

我正在开发一个Asp.net MVC 5项目，我正在尝试设置一个模拟以在控制器中返回自定义主体。 我有搜索并尝试了不同的方法，但没有一个有效。

我有一个BaseController，我的所有控制器都inheritance自。 BaseController有一个User属性，它在getter中返回HttpContext.User。 HttpContext.user在项目中调用时返回一个值，但在从unit testing项目调用时返回null。

BaseController

public class BaseController : Controller { protected virtual new CustomPrincipal User { get { return HttpContext.User as CustomPrincipal; } ***<== Line with issue*** } } 

自定义校长

 public class CustomPrincipal : IPrincipal, ICustomPrincipal { public IIdentity Identity { get; private set; } public string UserId { get; set; } public string FirstName { get; set; } public string LastName { get; set; } public bool IsStoreUser { get; set; } public CustomPrincipal(string username) { this.Identity = new GenericIdentity(username); } } 

调节器

 public class DocumentsController : BaseController { public ViewResult ViewDocuments() { var userType = User.IsStoreUser ? UserType.StoreUser : UserType.Corporate; ***<== User is null when calling from a unit test.*** } } 

测试用例

 [Test] public void ViewDocuments_WhenCalled_ShouldReturnViewModel() { // Arrange var principal = new CustomPrincipal("2038786"); principal.UserId = "2038786"; principal.FirstName = "Test"; principal.LastName = "User"; principal.IsStoreUser = true; var _mockController = new Mock(new UnitOfWork(_context)) { CallBase = true }; _mockController.Setup(u => u.User).Returns(principal); *** u.User"*** // Act var result = _controller.ViewDocuments(); } 

我正在使用nUnit和Moq来创建模拟对象，但我不确定我做错了什么。 我需要在DocumentControl中模拟User.IsStore的返回，以在我在测试中创建的自定义主体对象中返回IsStore的值。

 private class MockHttpContext : HttpContextBase { private readonly IPrincipal user; public MockHttpContext(IPrincipal principal) { this.user = principal; } public override IPrincipal User { get { return user; } set { base.User = value; } } } 

 [Test] public void ViewDocuments_WhenCalled_ShouldReturnViewModel() { // Arrange var principal = new CustomPrincipal("2038786"); principal.UserId = "2038786"; principal.FirstName = "Test"; principal.LastName = "User"; principal.IsStoreUser = true; var mockUoW = new Mock(); //...setup UoW dependency if needed var controller = new DocumentsController(mockUoW.Object); controller.ControllerContext = new ControllerContext { Controller = controller, HttpContext = new MockHttpContext(principal) }; // Act var result = controller.ViewDocuments(); //Assert //...assertions }