public void LogoutCommand_Run_UsesBindingFromNotification()
        {
            var subject = new LogoutCommand();
            var options = StubFactory.CreateOptions();

            options.Notifications.GetBinding = r => new StubSaml2Binding();

            var request = new HttpRequestData("GET", new Uri("http://host"));

            subject.Invoking(s => s.Run(request, options))
            .Should().Throw <NotImplementedException>()
            .WithMessage("StubSaml2Binding.*");
        }