### Question:
NodeService { public void delete(String cluster, String path, String creator) throws ShepherException { nodeBiz.delete(cluster, path); long snapshotId = snapshotBiz.create(cluster, path, ReviewUtil.EMPTY_CONTENT, creator, Action.DELETE, ReviewUtil.DEFAULT_MTIME, ReviewStatus.DELETED, ReviewUtil.NEW_CREATE_VERSION, ReviewUtil.DEFAULT_REVIEWER).getId(); Set<String> masters = teamBiz.listUserNamesByPath(cluster, path, Role.MASTER); mailSenderFactory.getMailSender().noticeDelete(masters, creator, path, cluster, serverUrl + "/snapshots/" + snapshotId); logger.info("Delete node, cluster={}, path={}, operator={}", cluster, path, creator); }  List<String> getChildren(String cluster, String path); String getData(String cluster, String path); Stat getStat(String cluster, String path); Stat getStat(String cluster, String path, boolean returnNullIfPathNotExists); void create(String cluster, String path, String data, String creator); void create(String cluster, String path, String data, String creator, boolean createParents); void createEphemeral(String cluster, String path, String data, String creator); void updateWithPermission(String cluster, String path, String data, String creator); void update(String cluster, String path, String data, String creator); void delete(String cluster, String path, String creator);  }### Answer:
@Test public void testDelete() throws Exception { nodeService.delete("local_test", "/test", ""); }