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如何对使用ther controller.User变量的控制器操作进行单元测试?

unit-testing asp.net-mvc .net

Jedidja · 技术社区 · 16 年前

我有一个控制器操作,如果用户已经登录,它会自动重定向到新页面( User.Identity.IsAuthenticated )。为该场景编写单元测试以确保重定向发生的最佳方法是什么?

2 回复 | 直到 16 年前

mkedobbs 16 年前

我一直在使用以下Moq模拟,以允许在单元测试中设置各种条件。首先,HttpContextBase模拟:

    public static Mock<HttpContextBase> GetHttpContextMock(bool isLoggedIn)
    {
        var context = new Mock<HttpContextBase>();
        var request = new Mock<HttpRequestBase>();
        var response = new Mock<HttpResponseBase>();
        var session = new Mock<HttpSessionStateBase>();
        var server = new Mock<HttpServerUtilityBase>();
        var principal = AuthenticationAndAuthorization.GetPrincipleMock(isLoggedIn);

        context.SetupGet(c => c.Request).Returns(request.Object);
        context.SetupGet(c => c.Response).Returns(response.Object);
        context.SetupGet(c => c.Session).Returns(session.Object);
        context.SetupGet(c => c.Server).Returns(server.Object);
        context.SetupGet(c => c.User).Returns(principal.Object);

        return context;
    }

Mock.Get(controller.Request).Setup(s => s.UrlReferrer).Returns(new Uri("http://blah.com/");

“GetPrincipleMock”方法是设置用户的方法。看起来是这样的:

    public static Mock<IPrincipal> GetPrincipleMock(bool isLoggedIn)
    {
        var mock = new Mock<IPrincipal>();

        mock.SetupGet(i => i.Identity).Returns(GetIdentityMock(isLoggedIn).Object);
        mock.Setup(i => i.IsInRole(It.IsAny<string>())).Returns(false);

        return mock;
    }

    public static Mock<IIdentity> GetIdentityMock(bool isLoggedIn)
    {
        var mock = new Mock<IIdentity>();

        mock.SetupGet(i => i.AuthenticationType).Returns(isLoggedIn ? "Mock Identity" : null);
        mock.SetupGet(i => i.IsAuthenticated).Returns(isLoggedIn);
        mock.SetupGet(i => i.Name).Returns(isLoggedIn ? "testuser" : null);

        return mock;
    }

var controller = new ProductController();
var httpContext = GetHttpContextMock(true); //logged in, set to false to not be logged in

ControllerContext controllerContext = new ControllerContext(httpContext.Object, new RouteData(), controller);
controller.ControllerContext = controllerContext;

这是一个有点冗长的设置,但是一旦你准备好了一切,测试各种条件就变得容易多了。

Mark Seemann 16 年前

var user = new GenericPrincipal(new GenericIdentity(string.Empty), null);
var httpCtxStub = new Mock<HttpContextBase>();
httpCtxStub.SetupGet(ctx => ctx.User).Returns(user);

var controllerCtx = new ControllerContext();
controllerCtx.HttpContext = httpCtxStub.Object;

sut.ControllerContext = controllerCtx;

然后调用您的操作并验证返回结果是否为重定向结果。

此测试利用了一个隐含的知识,即当您使用空名称创建GenericEntity时,它将为IsAuthenticated返回false。您可以考虑通过使用 Mock<IIdentity>