我试图为我的一个控制器写一个单元测试，以验证视图是否正确返回，但此控制器有一个访问HttpContext.Current.Session的basecontroller。每次我创建一个新的我的控制器的实例是调用basecontroller构造函数和测试失败与一个空指针异常HttpContext.Current.Session。这里是代码：
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);
}
任何想法如何模拟(使用Moq)在基本控制器中访问的会话，以便后代控制器中的测试将运行？
解决方法
如果你使用
Typemock，你可以这样做：
Isolate.WhenCalled(()=>controller.HttpContext.Current.Session["UserID"])
.WillReturn("your id");
测试代码将如下所示：
[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,expectedViewName);
}
