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Test mvc controller method for correct view in ASP.NET MVC

How to test ASP.NET controller method for correct view?

First reference necessary .dlls that help us to use classes to test the View. Our ASP.NET MVC Project is already referenced so we can use the Controller namespace so that we will be able to use its controller for the test.

Now add the reference of the System.Web.Mvc.dll that help us to use VIewResult class.

Now modify the default Test method to following

[TestMethod]
  public void TestMethod1()
  {
      //Arrange
      var controller = new PersonalDetailsController();

      // Act
      var result = controller.Create() as ViewResult;

      // Assert
      Assert.AreEqual("Create", result.ViewName);
  }

Notice the above Arrage / Act and the Assert. Unit test is written in three steps

• Arrange – Arrange the necessary infra to act. Ie instantiate necessary controller so that its method can be called for the testing.
• Act – call the method that needs a test.
• Assert – Now check whether the expected value is equal to the value returned from the method by calling Assert class methods

// GET: PersonalDetails/Create
public ActionResult Create()
{
    //return View(); // will fail the test case
    return View("Create");
}