Assert.AreEqual失敗。預計：<(null)>。 Actual：<System.Web.Mvc.ViewResult>

Question

我正在開發asp.net mvc3上的單元測試。當我運行一個defaultly創建測試的測試方法：

[TestMethod()] 
     public void IndexTest() 
     { 
      ConferenceController target = new ConferenceController(); // TODO: Initialize to an appropriate value 
      ActionResult expected = Index; // TODO: Initialize to an appropriate value 
      ActionResult actual; 
      actual = target.Index(); 
      Assert.AreEqual(expected, actual); 
      Assert.Inconclusive("Verify the correctness of this test method."); 
     } 

此錯誤發生[TestMethod()]：

Assert.AreEqual失敗。預計：<（null）>。實際：。

如何傳遞斷言？

Answer 1

ActionResult expected = Index; // TODO: Initialize to an appropriate value 

由於註釋表示您應該將Index變量初始化爲適當的值。例如：

[TestMethod] 
public void Index() 
{ 
    // Arrange 
    HomeController controller = new HomeController(); 

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

    // Assert 
    Assert.AreEqual("Welcome to ASP.NET MVC!", result.ViewBag.Message); 
}