c# - 单元测试自定义ViewEngine

我正在尝试对我编写的自定义 View 引擎进行单元测试。
View 引擎的预期功能是，在执行FindView时，它会更改基本RazorViewEngine的外观。
这是我的单元测试

public void ViewEngineReturnsDependencyView()
{
    //Mock http request
    var mockRequest = new Mock<HttpRequestBase>();
    //Mock server variable
    NameValueCollection variables = new NameValueCollection();
    variables.Add("APPL_PHYSICAL_PATH", TEST_APPLICATION_PATH);
    mockRequest.Setup(r => r.ServerVariables).Returns(variables);

    //Mock http context
    var mockHttpContext = new Mock<HttpContextBase>();

    //Mock route
    mockHttpContext.Setup(c => c.Request).Returns(mockRequest.Object);
    var routeData = new RouteData();
    routeData.Values.Add("controller", "testController");
    routeData.Values.Add("action", "testAction");

    //Mock controller context
    var controllerContext = new testController().ControllerContext;
    controllerContext.HttpContext = mockHttpContext.Object;
    controllerContext.RouteData = routeData;
    var mockControllerContext = new ControllerContext(mockHttpContext.Object,
                        routeData,
                        new Mock<ControllerBase>().Object);

    //Run find view
    viewEngine.FindView(mockControllerContext, "TestView", null, false);
}

令人讨厌的viewEngine.FindView(...);引发异常:

我的问题是，如何创建适当的模拟以对RazorViewEngine.FindView()进行单元测试？

最佳答案

System.Web.WebPages.DisplayModeProvider.GetDisplayMode()方法正在使用HttpContext.Items属性，您还需要模拟该属性。

尝试:

mockHttpContext.Setup(c => c.Items).Returns(new Dictionary<object, object>());

关于c# - 单元测试自定义ViewEngine，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/19556203/