Unit testing asp.net mvc restful routing FormatResult

Question

I'm using restful routing module for asp.net mvc and very happy with it. But I can't get one thing. For example I had a controller action like this:

public ActionResult Index()
{
    if (Request.IsAjaxRequest()) 
        return PartialView();
    return View();
}

And had no problem with writing a spec like this:

[Subject(typeof(LotsController))]
public class When_Index_called
{
    static LotsController controller;

    static ActionResult actionResult;

    Establish context = () => {
        controller = mocker.Create<LotsController>();
        controller.ControllerContext = Contexts.Controller.Default;
    };

    Because of = () => actionResult = controller.Index();

    It should_render_view = () => actionResult.AssertViewRendered().ForViewWithDefaultName();

But with use of rest, I want to have an Index method like this:

public ActionResult Index()
{
    return RespondTo(format => {
        format.Html = () => {
            if (Request.IsAjaxRequest()) 
                return PartialView();
            return View();
        };
        format.Json = () => Json(new { });
    });
}

Sure that previous spec fails, because action result is not of type ViewResult, its of type FormatResult. FormatResult by itself overrides ExecuteResult method that returns void. How can I unit test such case if I want to verify action result types and data inside FormatResult?

Sly · Accepted Answer · 2012-01-24 11:16:00Z

1

In the future version of restful routing such code is possible:

var formatResult = actionResult as FormatResult;
ActionResult result = formatResult.ExposeResult().Html();
result.ShouldBeOfType<ViewResult>();

edited Jan 24, 2012 at 11:16

answered Dec 19, 2011 at 15:14

Sly

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Comments

Jag · Accepted Answer · 2011-12-16 13:46:38Z

0

Could assert use the name of the view returned?

That wouldn't give you the format but would let you test the view returned.

answered Dec 16, 2011 at 13:46

Jag

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1 Comment

Sly Over a year ago

I can't get instance of ViewResult

stevehodgkiss · Accepted Answer · 2011-12-17 06:39:36Z

0

It depends on the request to which ActionResult gets used. This logic takes place when the FormatResult's ExecuteResult method is run. The best way around this would be to refactor the FormatResult class so that you can get the chosen ActionResult without executing it. Pull requests welcome :)

As it stands the only way to test this would be to run the ExecuteResult method and inspect the outcome.

answered Dec 17, 2011 at 6:39

stevehodgkiss

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