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我正在尝试使用 webgrid 对控制器进行单元测试

var grid = new WebGrid(ajaxUpdateContainerId: "container-grid",ajaxUpdateCallback: "setArrows",  canSort: true);

我总是收到这个错误

System.ArgumentNullException: Value cannot be null.
Parameter name: httpContext

这是我的测试方法

    var mockContext = CreateMockContext();
    UserController target = new UserController();
    target.ControllerContext = new ControllerContext();
    target.ControllerContext.HttpContext = mockContext.Http.Object;
    Nullable<int> page = new Nullable<int>();
    string sort = "CreatedDate";
    string sortdir = "ASC";
    ActionResult actual;
    actual = target.Payments(page, sort, sortdir);
    Assert.IsNotNull(actual);

这是我的 CreateMockContext 方法

public UnitTestBase CreateMockContext()
        {
            this.RoutingRequestContext = new Mock<RequestContext>(MockBehavior.Loose);
            this.ActionExecuting = new Mock<ActionExecutingContext>(MockBehavior.Loose);
            this.Http = new Mock<HttpContextBase>(MockBehavior.Loose);
            this.Server = new Mock<HttpServerUtilityBase>(MockBehavior.Loose);
            this.Response = new Mock<HttpResponseBase>(MockBehavior.Loose);
            this.Request = new Mock<HttpRequestBase>(MockBehavior.Loose);
            this.Session = new Mock<HttpSessionStateBase>(MockBehavior.Loose);
            this.Cookies = new HttpCookieCollection();

            this.RoutingRequestContext.SetupGet(c => c.HttpContext).Returns(this.Http.Object);
            this.ActionExecuting.SetupGet(c => c.HttpContext).Returns(this.Http.Object);
            this.Http.SetupGet(c => c.Request).Returns(this.Request.Object);
            this.Http.SetupGet(c => c.Response).Returns(this.Response.Object);
            this.Http.SetupGet(c => c.Server).Returns(this.Server.Object);
            this.Http.SetupGet(c => c.Session).Returns(this.Session.Object);
            this.Http.SetupGet(p => p.User.Identity.Name).Returns("admin");
            this.Http.SetupGet(p => p.Request.IsAuthenticated).Returns(true);
            this.Request.Setup(c => c.Cookies).Returns(Cookies);
            return this;
        }

我可以很好地测试其他控制器。只有带有 webgrid 的控制器会失败。请帮忙。

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1 回答 1

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您WebGrid在控制器中实例化是否有原因？似乎基于这篇 MSDN 文章，您可以将WebGrid实例化移动到控制器的视图中，并从其逻辑中删除该依赖项。这肯定会使编写单元测试更加容易。

于 2013-04-16T12:49:39.983 回答