如何在MVC中对Create方法执行单元测试? [英] How to perform Unit Testing on Create method in MVC?

问题描述

如何在MVC应用程序上执行单元测试?

How to perform a Unit testing on MVC application?

我已经创建了控制器位置. 它具有LocationName，Area，City，PinCode之类的属性.

I have created the Controller Location. It has properties like LocationName,Area,City,PinCode.

现在，我想执行单元测试以检查Location是否保存在DB中. 如何检查.

Now, I want to perform unit test to check whether Location saves in DB or not. How to check it.

我遍历了无数的视频，每个地方都只是对 诸如加，除，减...的数学运算.

I have go through tons of videos, every where they just put the Unit test of Mathematical operations like adding,Dividing , subtracting....

我想知道如何执行MVC的Create方法的单元测试

I would like to know how to perform the Unit testing of Create method of MVC

我有类似下面的代码

 [HttpPost]
    public ActionResult Create(Location location)
    {
        if (ModelState.IsValid)
        {
            db.Locations.Add(location);
            db.SaveChanges();
            return RedirectToAction("Index");  
        }
    }

推荐答案

为了使您的代码可测试，您应该抽象控制器的依赖项.使用存储库模式来抽象数据访问非常方便. 注入将您的存储库放入控制器:

In order to make your code testable, you should abstract dependencies of controller. It's very handy to use Repository pattern to abstract data access. Inject your repository into controller:

public class LocationController : Controller
{
    private ILocationRepository _locationRepository;

    public LocationController(ILocationRepository locationRepository)
    {
         _locationRepository = locationRepository;
    }
}

现在您可以模拟您的存储库了.这是使用 Moq 框架和

Now you can mock your repository. Here is sample test with Moq framework and MvcContrib:

// Arrange
Mock<ILocationRepository> repository = new Mock<ILocationRepository>();
var controller = new LocationController(repository.Object);
Location location = new Location("New York);
// Act
var result = controller.Create(location);
// Assert
result.AssertActionRedirect()
      .ToAction<LocationController>(c => c.Index());
repository.Verify(r => r.Add(location));
repository.Verify(r => r.Save());

您可以实现将通过此测试的代码:

And you can implement code, which will pass this test:

[HttpPost]
public ActionResult Create(Location location)
{
    if (ModelState.IsValid)
    {
        _locationRepository.Add(location);
        _locationRepository.Save();
        return RedirectToAction("Index");  
    }
}

您可以在此处阅读有关实现存储库和测试MVC应用程序的更多信息:

You can read more on implementing repositories and testing MVC applications here: Implementing the Repository and Unit of Work Patterns in an ASP.NET MVC Application. Nice feature also to have Unit of Work per request.

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