模拟 HttpContext (Session)

Question

我已经阅读了很多关于在 mvc 中进行模拟的文章和博客......其中很多很有帮助，但我仍然有一些问题：

• 一个这样的问题是我需要在我的 ActionResult 中使用 Session，但在我的测试中，当访问 Session 时我得到一个 NullReferenceException。

  public ActionResult Index()
  {
    if (Session["Something"] == null)
    {
      Session.Add("Something", <smth>);
    }
    else
    {
      Session["Something"] = <smth>;
    }
    return redirect to action("Index2");
  }
  

• 我的测试如下所示：

  HomeController controller = new HomeController;
  var result = controller.Index() as ViewResult;
  Assert.AreEqual("Index2", result.ViewName);
  

Answer 1

您可以使用MVC-contrib TestHelper等工具

该网站的示例展示了如何测试在会话中存储已发布表单值的操作

[Test]
public void AddSessionStarShouldSaveFormToSession()
{
    TestControllerBuilder builder = new TestControllerBuilder();
    StarsController controller = new StarsController();
    builder.InitializeController(controller);

    //note that this is assigned before the controller action. This simulates the server  filling out the form data from the request
    builder.Form["NewStarName"] = "alpha c";

    //this assumes that AddSessionStar takes the form data and adds it to the session
    controller.AddSessionStar();

    Assert.AreEqual("alpha c", controller.HttpContext.Session["NewStarName"]);
}