@Override
  public TYPE getType() {
    return Delta.TYPE.CHANGE;
  }
@Test
  void testGetType() {
    // given
    Chunk<String> chunk = new Chunk<>(1, EMPTY_LIST);
    Delta<String> delta = new ChangeDelta<>(chunk, chunk);

    // when
    Delta.TYPE type = delta.getType();

    // then
    assertThat(type).isEqualTo(Delta.TYPE.CHANGE);
  }