asp.net MVC ModelState 在我的单元测试中为空.为什么? [英] asp.net MVC ModelState is null in my Unit Test. Why?

问题描述

ModelState 在我的单元测试中总是返回 null.我希望有人能告诉我原因.

ModelState is always returning null in my unit tests. I was hoping someone could tell me why.

给定以下控制器:

public class TestController : Controller
{
   public ViewResult Index()
    {
        return View();
    }
}

通过此测试，我的 ModelState 测试为 null:

My test gets null for ModelState with this test:

public void ModelState_Is_Not_Null()
{
    TestController controller = new TestController();
    var result = controller.Index();

    // This test is failing:
    Assert.IsNotNull(controller.ViewData.ModelState);
}

如果我更改控制器以返回一个新的 ViewResult() 我不会得到 null:

If I change the controller to return a new ViewResult() I don't get null:

public class TestController : Controller
{
  public ViewResult Index()
  {
    return new ViewResult();
  }
}

但是... IsValid() 返回 true 如果我这样做不应该这样做:

But... IsValid() returns true when it shouldn't if I do it this way:

public class TestController : Controller
{
   public ViewResult Index()
    {
        ModelState.AddModelError("Test", "This is an error");
        return new ViewResult();

        // I don't get null in the test for ModelState anymore, but IsValid()
        // returns true when it shouldn't
    }
}

我想我在这里做的事情根本上是错误的，我不知道是什么.有人能指出我正确的方向吗?

I think I'm doing something fundamentally wrong here and I don't know what. Could anyone point me in the right direction?

推荐答案

感谢您检查，达林.

我安装了 MVC 1 RC 和 MVC 2 RC 2 版本.我卸载了它们，安装了 MVC 1，现在一切都按预期运行.测试没有失败.

I had the MVC 1 RC and MVC 2 RC 2 versions installed. I uninstalled both of them, installed MVC 1 and now everything is behaving as expected. The test doesn't fail.

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