How do you mock the session object collection using Moq

by

I started with Scott Hanselman’s MVCMockHelper, added a small class and made the modifications shown below to allow the controller to use Session normally and the unit test to verify the values that were set by the controller.

/// <summary>
/// A Class to allow simulation of SessionObject
/// </summary>
public class MockHttpSession : HttpSessionStateBase
{
    Dictionary<string, object> m_SessionStorage = new Dictionary<string, object>();

    public override object this[string name]
    {
        get { return m_SessionStorage[name]; }
        set { m_SessionStorage[name] = value; }
    }
}

//In the MVCMockHelpers I modified the FakeHttpContext() method as shown below
public static HttpContextBase FakeHttpContext()
{
    var context = new Mock<HttpContextBase>();
    var request = new Mock<HttpRequestBase>();
    var response = new Mock<HttpResponseBase>();
    var session = new MockHttpSession();
    var server = new Mock<HttpServerUtilityBase>();

    context.Setup(ctx => ctx.Request).Returns(request.Object);
    context.Setup(ctx => ctx.Response).Returns(response.Object);
    context.Setup(ctx => ctx.Session).Returns(session);
    context.Setup(ctx => ctx.Server).Returns(server.Object);

    return context.Object;
}

//Now in the unit test i can do
AccountController acct = new AccountController();
acct.SetFakeControllerContext();
acct.SetBusinessObject(mockBO.Object);

RedirectResult results = (RedirectResult)acct.LogOn(userName, password, rememberMe, returnUrl);
Assert.AreEqual(returnUrl, results.Url);
Assert.AreEqual(userName, acct.Session["txtUserName"]);
Assert.IsNotNull(acct.Session["SessionGUID"]);

It’s not perfect but it works enough for testing.

More Related Contents:

  1. How to mock the Request on Controller in ASP.Net MVC?
  2. Mocking Asp.net-mvc Controller Context
  3. Fake DbContext of Entity Framework 4.1 to Test
  4. ASP.NET MVC: Unit testing controllers that use UrlHelper
  5. ASP.NET MVC3 and Entity Framework Code first architecture
  6. Mocking HttpContextBase with Moq
  7. ASP.NET MVC unit test controller with HttpContext
  8. Why does the property I want to mock need to be virtual?
  9. How to mock Controller.User using moq
  10. Unity Inject dependencies into MVC filter class with parameters
  11. URLs with slash in parameter?
  12. The anti-forgery token could not be decrypted
  13. How do I find the absolute url of an action in ASP.NET MVC?
  14. How can I return camelCase JSON serialized by JSON.NET from ASP.NET MVC controller methods?
  15. Caching in asp.net-mvc
  16. ASP.NET MVC 3 Razor – Adding class to EditorFor
  17. self hosting asp.net mvc
  18. MVC versus WebForms [closed]
  19. Access Control in ASP.NET MVC depending on input parameters / service layer?
  20. MVC Custom Validation for List on Client Side
  21. MVC Model require true
  22. C# – Asserting two objects are equal in unit tests
  23. DateTime (date and hour) validation with Data Annotation
  24. OwinStartup not firing
  25. Does Razor syntax provide a compelling advantage in UI markup?
  26. ASP.NET MVC 3: Required steps for unobtrusive client-side validation of dynamic/AJAX content
  27. ASP.NET MVC posted file model binding when parameter is Model
  28. MVC3 Validation – Require One From Group
  29. How can dynamic breadcrumbs be achieved with ASP.net MVC?
  30. ASP.Net MVC DisplayFormat

Leave a Comment