Auto-mock setup for Web API

AutoMockWebApiAttribute.cs

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Controllers;
using System.Web.Http.Hosting;
using System.Web.Http.Routing;
using Newtonsoft.Json.Converters;
using Newtonsoft.Json.Serialization;
using NSubstitute;

public class AutoMockWebApiAttribute : AutoMockAspectAttribute
{
    public static readonly string CurrentController = "_CurrentController_";

    private HttpConfiguration config;
    private HttpRequestMessage request;

    public override void Bind(IAutoMock autoMock)
    {
        var routeData = Substitute.For<IHttpRouteData>();
        var routeValues = new Dictionary<string, object> { { "controller", CurrentController } };
        routeData.Values.Returns(routeValues);
        routeData.Route.Returns(Substitute.For<IHttpRoute>());
        autoMock.Kernel.Bind<IHttpRouteData>().ToConstant(routeData);

        config = new HttpConfiguration();
        config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
        config.Formatters.JsonFormatter.SerializerSettings.Converters.Add(new StringEnumConverter());
        autoMock.Kernel.Bind<HttpConfiguration>().ToConstant(config);
        autoMock.Kernel.Bind<HttpRouteCollection>().ToConstant(config.Routes);

        request = new HttpRequestMessage(HttpMethod.Get, new Uri("http://localhost:1337/request"));
        request.Properties[HttpPropertyKeys.HttpConfigurationKey] = config;
        request.Properties[HttpPropertyKeys.HttpRouteDataKey] = routeData;
        autoMock.Kernel.Bind<HttpRequestMessage>().ToConstant(request);

        var controllerContext = new HttpControllerContext(config, routeData, request);
        autoMock.Kernel.Bind<HttpControllerContext>().ToConstant(controllerContext);

        var controllerDescriptor = Substitute.For<HttpControllerDescriptor>(config, CurrentController, typeof(DummyController));
        autoMock.Kernel.Bind<HttpControllerDescriptor>().ToConstant(controllerDescriptor);

        var actionDescriptor = Substitute.For<HttpActionDescriptor>(controllerDescriptor);
        autoMock.Kernel.Bind<HttpActionDescriptor>().ToConstant(actionDescriptor);

        var actionContext = new HttpActionContext(controllerContext, actionDescriptor);
        autoMock.Kernel.Bind<HttpActionContext>().ToConstant(actionContext);
    }

    public override void OnObjectCreated(IAutoMock autoMock, object obj)
    {
        var controller = obj as ApiController;
        if (controller != null)
            controller.Request = request;
    }

    class DummyController : ApiController { }
}