ASP.NET MVC单元测试自定义AuthorizeAttribute

Question

我正在研究ASP.NET MVC 4项目(.NET框架4),我想知道如何正确地单元测试自定义AuthorizeAttribute(我使用NUnit和Moq).

我超越了2种方法:AuthorizeCore(HttpContextBase httpContext)和HandleUnauthorizedRequest(AuthorizationContext filterContext).正如你所看到的,这些方法分别期望HttpContextBase和AuthorizationContext,但我不知道如何模拟这些.

这是我得到的:

[Test]
public void HandleUnauthorizedRequest_UnexistingMaster_RedirectsToCommonNoMaster()
{
    // Arrange
    var httpContext = new Mock<HttpContextBase>();
    var winIdentity = new Mock<IIdentity>();
    winIdentity.Setup(i => i.IsAuthenticated).Returns(() => true);
    winIdentity.Setup(i => i.Name).Returns(() => "WHEEEE");
    httpContext.SetupGet(c => c.User).Returns(() => new ImdPrincipal(winIdentity.Object)); // This is my implementation of IIdentity
    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);

    // Act
    var masterAttr = new ImdMasterAuthorizeAttribute();
    var filterContext = new AuthorizationContext(controllerContext, actionDescriptor.Object);
    masterAttr.OnAuthorization(filterContext);

    // Assert
    Assert.AreEqual("", filterContext.HttpContext.Response);
}

在线:masterAttr.OnAuthorization(filterContext);a NullReferenceException被抛出.我认为它与我们尚未嘲笑的上下文中的值有关.

任何帮助是极大的赞赏.

提前致谢.

真诚的,Yanik Ceulemans

Answer 1

没有属性的代码,人们只能猜测.但是要开始调查,你可以创建你的模拟MockBehavior.Strict.这样,当没有先前的设置调用mock上的方法或属性时,Moq将抛出异常.该异常将具有方法/属性的名称:

var httpContext = new Mock<HttpContextBase>(MockBehavior.Strict);