@Test
  public void testDeleteNodeRecursivelyMulti() throws Exception {
    String parentZNode = "/testdeleteNodeRecursivelyMulti";
    createZNodeTree(parentZNode);

    ZKUtil.deleteNodeRecursively(zkw, parentZNode);
    assertEquals("Parent znode should be deleted.", -1, ZKUtil.checkExists(zkw, parentZNode));
  }
Verifies that for the given root node, it should delete all the nodes recursively using
multi-update api.
hbase-zookeeper/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKMulti.java