@Test
  public void testParentCleanedEvenIfDaughterGoneFirst() throws IOException, InterruptedException {
    parentWithSpecifiedEndKeyCleanedEvenIfDaughterGoneFirst(this.name.getMethodName(),
      Bytes.toBytes("eee"));
  }
Make sure parent gets cleaned up even if daughter is cleaned up before it.
hbase-server/src/test/java/org/apache/hadoop/hbase/master/janitor/TestCatalogJanitor.java