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In this article, I am going to demonstrates how to test
the view returned by a controller action.
You can know how to test the view returned by a
controller action, how to test the View Data returned by a controller action,
and how to test whether or not one controller action redirects you to a second
controller action.
Here I am going to create Unit Test project in MVC:
Open Microsoft Visual Studio
à New Project
à ASP.NET MVC3 Web Application.
Select Internet
Application from New ASP.NET MVC3 Project template and select
Visual
Studio Unit Test for the Test Framework.
Delete pre-existence file from a Controller folder that
exists in .Tests extension.
ProductController.cs
The ProductController
contains two action methods named Index() and Details(). Both action methods
return a view. The Details() action accepts a parameter named Id.
using System;
using System.Web.Mvc;
namespace Store.Controllers
{
public class
ProductController :
Controller
{
public ActionResult
Index()
{
throw new
NotImplementedException();
}
public ActionResult
Details(int Id)
{
return View("Details");
}
}
}
After creating a Controller, create a
unit test for the controller:
Right click on the Controller folder
à Add
à New Test.
Select Basic Unit Test from Add New
Test template.
ProductControllerTest.cs
In
ProductControllerTest.cs
we test that whether ProductController
returns the right view or not. We want to make sure that when the
ProductController.Details() action is invoked, the Details view is returned. The
test class in Listing 2 contains a unit test for testing the view returned by
the ProductController.Details() action.
using System.Web.Mvc;
using
Microsoft.VisualStudio.TestTools.UnitTesting;
using Store.Controllers;
namespace StoreTests.Controllers
{
[TestClass]
public class
ProductControllerTest
{
[TestMethod]
public void
TestDetailsView()
{
var controller =
new ProductController();
var result = controller.Details(2)
as ViewResult;
Assert.AreEqual("Details", result.ViewName);
}
}
}
If ProductController returns the
matched View the result will come Passed
else the result will be Aborted. Our
Product controller return the matched View that’s why
Result comes Passed.
The above process indicates how to test the View
returned by the Controller action with the help of Visual Studio Unit Test
project.
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