protected void ensurePath() throws Exception {
        ensureContainers.ensure();
    }
@Test
    public void testEnsurePath() throws Exception {
        Timing timing = new Timing();

        CuratorFramework client = CuratorFrameworkFactory.newClient(
                server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        client.start();
        try {
            try (PathChildrenCache cache = new PathChildrenCache(client, "/one/two/three", false)) {
                cache.start();
                timing.sleepABit();

                try {
                    client.create().forPath("/one/two/three/four");
                } catch (KeeperException.NoNodeException e) {
                    fail("Path should exist", e);
                }
            }
            timing.sleepABit();
        } finally {
            TestCleanState.closeAndTestClean(client);
        }
    }