    @Test
    public void testGetValues_Attributes() {

        List<Value> res3 = rec.getValues("leaf1_attribute");
        assertEquals(1, res3.size());
        assertEquals("leaf1 attribute", res3.get(0).getAsString());

        List<Value> res4 = rec.getValues("all_attributes");
        assertEquals(2, res4.size());
        assertEquals("leaf1 attribute", res4.get(0).getAsString());
        assertEquals("leaf2 attribute", res4.get(1).getAsString());
    }