RouteTestingUsingFilter.cs

using System;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Controllers;
using System.Web.Http.Filters;
using Xunit;
using Xunit.Extensions;

namespace TestRoutes
{
    public class TestRoutes
    {
        [Theory]
        [InlineData("http://localhost/Customers/42", "Test", "GetCustomer")]
        [InlineData("http://localhost/Customers", "Test", "GetCustomers")]
        [InlineData("http://localhost/Customers/42/Name", "Test", "GetCustomerName")]
        public void RegisteredRoutes_MatchRight_ControllerAndAction(string uri, string expectedController, string expectedAction)
        {
            // Arrange
            HttpConfiguration config = new HttpConfiguration();
            config.MapHttpAttributeRoutes();

            config.Filters.Add(new TestActionFilter());

            HttpServer server = new HttpServer(config);
            HttpClient client = new HttpClient(server);

            // Act
            var response = client.GetAsync(uri).Result;

            // Assert
            response.EnsureSuccessStatusCode();
            Tuple<string, string> result = response.Content.ReadAsAsync<Tuple<string, string>>().Result;
            Assert.Equal(expectedController, result.Item2);
            Assert.Equal(expectedAction, result.Item1);
        }
    }

    // Return the action/controller metadata as response instead of invoking the actual action.
    public class TestActionFilter : AuthorizationFilterAttribute
    {
        public override void OnAuthorization(HttpActionContext actionContext)
        {
            actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.OK,
                Tuple.Create(
                    actionContext.ActionDescriptor.ActionName,
                    actionContext.ControllerContext.ControllerDescriptor.ControllerName));
        }
    }

    public class TestController : ApiController
    {
        [Route("Customers")]
        [Authorize]
        public void GetCustomers()
        {
        }

        [Route("Customers/{id:int}")]
        public void GetCustomer(int id)
        {
        }

        [Route("Customers/{id:int}/Name")]
        public void GetCustomerName(int id)
        {
        }
    }
}