@Test
    void shouldNotAcceptEmptyResult() {
        assertThatThrownBy(() -> Routed.of(Route.ofCatchAll(), RoutingResult.empty(), new Object()))
                .isInstanceOf(IllegalArgumentException.class);
    }
Should not accept an empty {@link RoutingResult} when creating a non-empty {@link Routed}.
core/src/test/java/com/linecorp/armeria/server/RoutedTest.java