    @Test
    public void invokesFunctionWithFluxOfMultipleItems() {

        SpringCloudFunction fnWrapper = new SpringCloudFunction(x -> x, new SimpleFunctionInspector());

        Object result = invoker.tryInvoke(fnWrapper, new Object[]{ Arrays.asList("hello", "world") });

        assertThat(result).isInstanceOf(List.class);
        assertThat((List) result).containsSequence("hello", "world");
    }