單元測試自定義MVC AuthorizationAttribute

Question

這個問題是相當多的ASP.NET MVC unit testing custom AuthorizeAttribute重複 - 但我不能讓我的代碼沒有擊中同一個NullReferenceException

東西顯然是失蹤，當我嘲笑了我的控制器上運行。

我的屬性很簡單 - 是這樣的：

public override void OnAuthorization(AuthorizationContext filterContext) 
{ 
    if (!base.AuthorizeCore(filterContext.HttpContext)) 
    { 
     filterContext.Controller.TempData.Add("RedirectReason", "Unauthorized"); 
    } 
    base.OnAuthorization(filterContext); 
} 

我最近一次嘗試是在下面。我也嘗試了引用鏈接上的問題代碼，包括向上下文中添加項目。

// Arrange 
     Mock<IPrincipal> userMock = new Mock<IPrincipal>(); 
     Mock<HttpResponseBase> responseMock = new Mock<HttpResponseBase>(); 
     responseMock.SetupGet(res => res.Cache).Returns(new Mock<HttpCachePolicyBase>().Object); 

     Mock<HttpContextBase> contextMock = new Mock<HttpContextBase>(MockBehavior.Strict); 
     contextMock.SetupGet(cm => cm.User).Returns(userMock.Object); 
     contextMock.SetupGet(cm => cm.Response).Returns(responseMock.Object); 
     contextMock.SetupGet(cm => cm.Items).Returns(new Mock<IDictionary>().Object); 

     Mock<ControllerContext> controllerContextMock = new Mock<ControllerContext>(); 
     controllerContextMock.SetupGet(ctx => ctx.HttpContext).Returns(contextMock.Object); 

     Mock<ActionDescriptor> actionDesMock = new Mock<ActionDescriptor>(); 
     actionDesMock.Setup(action => action.GetCustomAttributes(typeof(AllowAnonymousAttribute), true)).Returns(new object[0]); 

     // Act 
     CustomAuthorizationAttribute cusAtr = new CustomAuthorizationAttribute() { Roles = "TestRole" }; 

     // Assert 
     cusAtr.OnAuthorization(new AuthorizationContext(controllerContextMock.Object, actionDesMock.Object)); 

我也檢查了AuthorizeCore的源代碼。

當跑，在測試上base.AuthorizeCore(filterContext.HttpContext)失敗了NullReferenceException

想不通有什麼遺漏。

有什麼想法嗎？

---

爲了方便起見，代碼從另一個問題，調整，以適應我們的模型是：

// Arrange 
    var httpContext = new Mock<HttpContextBase>(); 
    Dictionary<object, object> dictionary = new Dictionary<object, object>(); 
    httpContext.SetupGet(cm => cm.Items).Returns(dictionary); 
    Mock<IPrincipal> userMock = new Mock<IPrincipal>(); 
    httpContext.SetupGet(c => c.User).Returns(() => userMock.Object); 
    var requestBase = new Mock<HttpRequestBase>(); 
    var headers = new NameValueCollection 
    { 
     {"Special-Header-Name", "false"} 
    }; 
    requestBase.Setup(x => x.Headers).Returns(headers); 
    requestBase.Setup(x => x.HttpMethod).Returns("GET"); 
    requestBase.Setup(x => x.Url).Returns(new Uri("http://localhost/")); 
    requestBase.Setup(x => x.RawUrl).Returns("~/Maintenance/UnExistingMaster"); 
    requestBase.Setup(x => x.AppRelativeCurrentExecutionFilePath).Returns(() => "~/Maintenance/UnExistingMaster"); 
    requestBase.Setup(x => x.IsAuthenticated).Returns(() => true); 
    httpContext.Setup(x => x.Request).Returns(requestBase.Object); 
    var controller = new Mock<ControllerBase>(); 
    var actionDescriptor = new Mock<ActionDescriptor>(); 
    var controllerContext = new ControllerContext(httpContext.Object, new RouteData(), controller.Object); 

    CustomAuthorizationAttribute cusAtr = new CustomAuthorizationAttribute() { Roles = "TestRole" }; 

    // Act 
    cusAtr.OnAuthorization(new AuthorizationContext(controllerContext, actionDescriptor.Object)); 

Answer 1

你所引用的源代碼。你有沒有看看它需要什麼和你有什麼設置？你設置了一個主要的模擬。大。但身份沒有設置。在檢查用戶的呼叫

if (!user.Identity.IsAuthenticated) //<-- Identity would be null. 

這將空出來，因爲Identity沒有安排。

只需創建一個通用主體並使用它即可。所有必需的依賴關係都會爲你初始化。

//... 

IPrincipal principal = new GenericPrincipal(new GenericIdentity("TestName"), new[] { "TestRole" }); 

httpContext.SetupGet(c => c.User).Returns(() => principal); 

//... 

這會讓你過去最初的障礙。您可能仍然需要檢查您的安排，以確定沒有正確安排的其他依賴項。