c# - 如何对 session 值进行单元测试？

Question

下面是 Controller 方法的一段代码(c#):-

public ActionResult SelectProduct(string ProdName, int Block, int ProductAddressId = 0)
{
       if (ProductAddressId == 0 && Block == 1 && System.Web.HttpContext.Current.Session["ReturnProductAddressID"] != null)
       {
           ProductAddressId = (int)System.Web.HttpContext.Current.Session["ReturnProductAddressID"]; 
       }
       //other stuffs………    
}

下面是单元测试方法:-

   [TestMethod]
   public void SelectProduct_Condition1_Test()
   {
       //Arrange
       var controller = new ProductController();

       var prodName = string.Empty;
       var block = 1;
       var productAddressId = 0;

   //section 1
       /*var mockControllerContext = new Mock<ControllerContext>();
       var mockSession = new Mock<HttpSessionStateBase>();
       mockSession.SetupGet(s => s["ReturnProductAddressID"]).Returns("1");
       mockControllerContext.Setup(p => p.HttpContext.Session).Returns(mockSession.Object);*/

  //section 2
       /*int sessionValue = 1;
       var mockControllerContext = new Mock<ControllerContext>();
       var mockSession = new Mock<HttpSessionStateBase>();
       mockSession.SetupSet(s => s["ReturnProductAddressID"] = It.IsAny<int>()).Callback((string name, object val) => sessionValue = (int)val);
       mockSession.SetupGet(s => s["ReturnProductAddressID"]).Returns(() => sessionValue);
       mockControllerContext.Setup(p => p.HttpContext.Session).Returns(mockSession.Object);*/

       //Act         
       var actual = controller.SelectProduct(prodName,block,productAddressId);
 }

I want to ask how can i test or mock the session value up side on my action method(in if condition) ?

我在第 1 节和第 2 节(上面单元测试方法中的注释部分)中尝试了某些事情。但是没有任何效果。

谁能告诉我如何对 session 进行单元测试？

编辑:

没有上面的东西代替下面的东西工作:-

System.Web.HttpContext.Current.Session["ReturnProductAddressID"] = "12";

意味着如果我直接在单元测试方法中设置 session 值。但我想知道它是否是正确的方法？

Answer 1

你可以使用模拟。这是我以前的做法。

下载更新的最小起订量 https://www.nuget.org/packages/moq

Controller 的 Moc session

var mockControllerContext = new Mock<ControllerContext>();
var mockSession = new Mock<HttpSessionStateBase>();
mockSession.SetupGet(s => s["ReturnProductAddressID"]).Returns("123"); //somevalue
mockControllerContext.Setup(p => p.HttpContext.Session).Returns(mockSession.Object);

为 Controller 注册mockControllerContext

var controller = new YourController();
controller.ControllerContext = mockControllerContext.Object;

最后行动

var actual = controller.SelectProduct(YourModel);

所以，您的代码应该是这样的。

    [TestMethod]
    public void SelectProduct_Condition1_Test()
    {
        var prodName = string.Empty;
        var block = 1;
        var productAddressId = 0;

        var mockControllerContext = new Mock<ControllerContext>();
        var mockSession = new Mock<HttpSessionStateBase>();
        mockSession.SetupGet(s => s["ReturnProductAddressID"]).Returns("123"); //somevalue
        mockControllerContext.Setup(p => p.HttpContext.Session).Returns(mockSession.Object);

        var controller = new ProductController();
        controller.ControllerContext = mockControllerContext.Object;

        //Act         
        var actual = controller.SelectProduct(prodName, block, productAddressId);
    }