The Role Manager feature has not been enabled error during controller unit testing

Question

I'm doing unit testing for my controller's method. In following method, I want to check if the return type is ViewResult

    [HttpGet]
    public ActionResult AddRepresentative(Guid businessUnitId)
    {
        var roles = Roles.GetAllRoles();
        var model = new AddRepresentativeModel
        {
            BusinessUnitId = businessUnitId,
            Roles = roles.Select(r => new SelectListItem
            {
                Value = r,
                Text = r,
            })
        };
        return View(model);
    }

This is what i've done for testing

   [TestMethod]
    public void AddRepresentative_Get_Action_RendersView()
    {
        var result = _controller.AddRepresentative(Guid.Empty);

        Assert.IsInstanceOfType(result,typeof(ViewResult));
    }

Error:

Test method AdminPortal.Tests.Controller_Test.Customer.BusinessUnitControllerTests.AddRepresentative_Get_Action_RendersView threw exception: System.Configuration.Provider.ProviderException: The Role Manager feature has not been enabled.

Question: Is it not good practice to collect list of roles in HttpGet method?

Is there some change that i need to make in my controller or test method in order make the test pass?

Is the error occurring because I'm using RhinoMock?

Answer 1

Is it not good practice to collect list of roles in HttpGet method?

There's nothing wrong with it.

Is there some change that i need to make in my controller or test method in order make the test pass?

Yes, you could add an app.config file to your unit test project and register a role manager in the <system.web> section, the same way you did in your actual application. Otherwise where do you think the Roles.GetAllRoles(); method will get any data from? Alternatively you could wrap this call in a service layer that could be mocked in your unit test.

Is the error occurring because I'm using RhinoMock?

No.