Unit Testing ASP.NET Web API

SetupControllerForTests.cs

//http://www.peterprovost.org/blog/2012/06/16/unit-testing-asp-dot-net-web-api/

private static void SetupControllerForTests(ApiController controller)
{
    var config = new HttpConfiguration();
    var request = new HttpRequestMessage(HttpMethod.Post, "http://localhost/api/products");
    var route = config.Routes.MapHttpRoute("DefaultApi", "api/{controller}/{id}");
    var routeData = new HttpRouteData(route, new HttpRouteValueDictionary { { "controller", "products" } });

    controller.ControllerContext = new HttpControllerContext(config, routeData, request);
    controller.Request = request;
    controller.Request.Properties[HttpPropertyKeys.HttpConfigurationKey] = config;
}