ASP.NET MVC单元测试控制器的HttpContext

问题描述：

我试图写一个单元测试，我的一个控制器，以验证是否有一种观点正确返回，但该控制器具有一个访问HttpContext.Current.Session一个basecontroller。每次我创造我的控制器的一个新的实例是调用basecontroller构造和测试失败的HttpContext.Current.Session空指针异常。这里是code：

I am trying to write a unit test for my one controller to verify if a view was returned properly, but this controller has a basecontroller that accesses the HttpContext.Current.Session. Everytime I create a new instance of my controller is calls the basecontroller constructor and the test fails with a null pointer exception on the HttpContext.Current.Session. Here is the code:

public class BaseController : Controller
{       
    protected BaseController()
    {
       ViewData["UserID"] = HttpContext.Current.Session["UserID"];   
    }
}

public class IndexController : BaseController
{
    public ActionResult Index()
    {
        return View("Index.aspx");
    }
}

    [TestMethod]
    public void Retrieve_IndexTest()
    {
        // Arrange
        const string expectedViewName = "Index";

        IndexController controller = new IndexController();

        // Act
        var result = controller.Index() as ViewResult;

        // Assert
        Assert.IsNotNull(result, "Should have returned a ViewResult");
        Assert.AreEqual(expectedViewName, result.ViewName, "View name should have been {0}", expectedViewName);
    }

如何（使用MOQ）是在基本控制器访问会话所以在后代控制器测试将跑？嘲笑任何想法

Any ideas on how to mock (using Moq) the Session that is accessed in the base controller so the test in the descendant controller will run?

答

如果您使用的是 Typemock ，你可以这样做：

If you are using Typemock, you can do this:

Isolate.WhenCalled(()=>controller.HttpContext.Current.Session["UserID"])
.WillReturn("your id");

测试code将看起来像：

The test code will look like:

[TestMethod]
public void Retrieve_IndexTest()
{
    // Arrange
    const string expectedViewName = "Index";

    IndexController controller = new IndexController();
    Isolate.WhenCalled(()=>controller.HttpContext.Current.Session["UserID"])
    .WillReturn("your id");
    // Act
    var result = controller.Index() as ViewResult;

    // Assert
    Assert.IsNotNull(result, "Should have returned a ViewResult");
    Assert.AreEqual(expectedViewName, result.ViewName, "View name should have been {0}", expectedViewName);
}

ASP.NET MVC单元测试控制器的HttpContext

相关推荐