@Test(expected = IllegalArgumentException.class)
  public void add_to_index_empty_ifaddr() {
    RpslObject rpslObject = RpslObject.parse("inet-rtr: test\nifaddr:\n");
    RpslObjectInfo rpslObjectInfo = new RpslObjectInfo(1, ObjectType.INET_RTR, rpslObject.getKey());

    subject.addToIndex(
        whoisTemplate, rpslObjectInfo, rpslObject, getIfAddrAttributeAsString(rpslObject));
  }
  @Test
  public void add_to_index() {
    RpslObject rpslObject = RpslObject.parse("inet-rtr: test\nifaddr: 10.2.3.4 masklen 32");
    RpslObjectInfo rpslObjectInfo = new RpslObjectInfo(1, ObjectType.INET_RTR, rpslObject.getKey());
    checkRows(0);

    final int rows =
        subject.addToIndex(
            whoisTemplate, rpslObjectInfo, rpslObject, getIfAddrAttributeAsString(rpslObject));

    assertThat(rows, is(1));
    checkRows(1);
  }