@Test
void isMapNested_true() {

    String map = "map1" + LookupIdentifier.NEST_SEPARATOR +
            "map2" + LookupIdentifier.NEST_SEPARATOR +
            "map3";
    LookupIdentifier identifier = new LookupIdentifier(map, "key1", 12345);
    assertThat(identifier.isMapNested()).isTrue();
}