public void Should_try_to_POST_back_to_home_base_for_a_resource_that_does_not_exist() { var address = new Uri(Application.Current.Host.Source, "/SomeRandomRequest"); var httpWebRequestHelper = new HttpWebRequestHelper(address, "POST", "data=asdf&ffff=aaaa"); httpWebRequestHelper.ResponseComplete += e => { AssertErrorIs404(e.Error); EnqueueTestComplete(); }; httpWebRequestHelper.Execute(); }