Mocking RouteTable.Routes.GetVirtualPath in MVC

Question

Hi,

I have a paging controller with a method which calls

RouteTable.Routes.GetVirtualPath(this.viewContext.RequestContext, valueDictionary)

I am trying to test this method using Rhino mocks and I'm unsure how to mock GetVirtualPath to return a route other than null. I am mocking the RequestContext but I am unsure which methods/properties need to be stubbed.

By stubbing the mockRequestContext appropriately should GetVirtualPath return a non null path, and if so what needs to be stubbed for this to work?

Any advice much appreciated.

Answer 1

Not sure if I understand you question, but it looks like something like this:

IRouteTable routeTableMock = RhinoMocks.CreateMock<IRouteTable>();

// assuming that IRouteTable.Routes is of type IRoutes.
IRoutes routes = RhinoMocks.CreateMock<IRoutes>();

// return the routes with the mock
routeTableMock.Stub(x => x.Routes).Return(routes);

// setup the mock for GetVirtualPath
routes.Stub(
  x => x.GetVirtualPath(
    Arg<RequestContext>.Is.Anything, 
    Arg<IDictionary>.Is.Anything)
  .Return(/* whatever */);

if this is not what you are looking for, you have to tell more about your classes and what yo want to test.

Answer 2

If you don't need the complete virtual path, but just the URL it generates, you can instead use:

new UrlHelper(ControllerContext.RequestContext).RouteUrl(routeValueDictionary)

... and mock out the ControllerContext:

var mockHttpContext = new Mock<HttpContextBase>();

var controllerContext
    = new ControllerContext(
        mockHttpContext.Object,
        new RouteData(), 
        new Mock<ControllerBase>().Object);

var myController = new MyController { ControllerContext = controllerContext };

I was having this exact problem but this appears to have solved it.