如何亲热单元测试在MVC创建方法？ [英] How to perfrom Unit Testing on Create method in MVC?

问题描述

如何执行在MVC应用程序中的单元测试？

我创建了控制器位置。
它有一个像LOCATIONNAME，区，市，引脚$性能C $角

现在，我想执行单元测试，检查位置是否保存在数据库或没有。
如何检查它。

我经历吨的视频，每一个地方，他们只是把单元测试
如添加，分割，减数学运算......

我想知道如何执行创建MVC的方法的单元测试

我有code类似下面

  [HttpPost]
    公众的ActionResult创建（位置定位）
    {
        如果（ModelState.IsValid）
        {
            db.Locations.Add（位置）;
            db.SaveChanges（）;
            返回RedirectToAction（「指数」）;
        }
    }
 

解决方案

为了使您的code测试的，你应该控制的抽象依赖。它使用起来非常顺手库图案抽象的数据访问。 <一href=\"http://mytechworld.officeacuity.com/index.php/2011/05/ninject-and-entity-framework-$c$c-first-easy-repository-patterns/\"相对=nofollow>你的资料库注入到控制器：

 公共类LocationController：控制器
{
    私人ILocationRepository _locationRepository;    公共LocationController（ILocationRepository locationRepository）
    {
         _locationRepository = locationRepository;
    }
}
 

现在你可以嘲笑你的资料库。这里是起订量框架的 MvcContrib ：

  //排列
模拟＆LT; ILocationRepository＆GT;库=新的模拟＆LT; ILocationRepository＆GT;（）;
VAR控制器=新LocationController（repository.Object）;
位置位置=新的位置（纽约）;
//法案
VAR的结果= controller.Create（位置）;
//断言
result.AssertActionRedirect（）
      .ToAction＆所述; LocationController＆GT;（C =＆GT; c.Index（））;
repository.Verify（R =＆GT; r.Add（位置））;
repository.Verify（R =＆GT; r.Save（））;
 

和可以实现code，这将通过这个测试：

  [HttpPost]
公众的ActionResult创建（位置定位）
{
    如果（ModelState.IsValid）
    {
        _locationRepository.Add（位置）;
        _locationRepository.Save（）;
        返回RedirectToAction（「指数」）;
    }
}
 

您可以阅读更多的实施库和测试在这里MVC应用：
<一href=\"http://www.asp.net/mvc/tutorials/getting-started-with-ef-using-mvc/implementing-the-repository-and-unit-of-work-patterns-in-an-asp-net-mvc-application\"相对=nofollow>在ASP.NET MVC应用程序执行工作模式的存储库和单位。不错的功能也有<一个href=\"http://www.mindscapehq.com/blog/index.php/2008/05/12/using-the-unit-of-work-per-request-pattern-in-aspnet-mvc/\"相对=nofollow>每个请求工作单位。

How to perform a Unit testing on MVC application ?

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

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

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

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

I have code something like below

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


    }

解决方案

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;
    }
}

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());

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");  
    }
}

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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