@Test
public void addDescription() throws Exception {

  JsonNode road = mapper.readTree("{}");
  List<PatchOperation> operations = singletonList(PatchOperation.add("/description", "description1"));
  JsonNode result = underTest.apply(road, operations);
  assertThat(result.isMissingNode(), is(false));
  assertThat(result.get("description").textValue(), is("description1"));
}