@Test
public void invokeList() {

    FunctionTestUtil.assertResultList(sortFunction.invoke(Arrays.asList(10, 4, 5, 12)), Arrays.asList(4, 5, 10, 12));
    FunctionTestUtil.assertResultList(sortFunction.invoke(Arrays.asList("a", "c", "b")), Arrays.asList("a", "b", "c"));
}