try {
            conn.connect();
            fail("Should throw IOException when project ID is not set");
        } catch (IOException e) {
            assertTrue(e.getMessage().contains("GCS_PROJECT_ID is blank"));
        }
    }

    /**
     * Test thread-safety of connect() method.
     * Multiple threads should be able to call connect() concurrently without issues.
     */

         *
         * @throws IOException If the connection cannot be established
         */
        @Override
        public synchronized void connect() throws IOException {
            if (connected) {
                return;
            }
            final String endpoint = System.getenv().get("STORAGE_ENDPOINT");
            final String accessKey = System.getenv().get("STORAGE_ACCESS_KEY");

    /**
     * Checks if the client is connected to OpenSearch.
     *
     * @return true if connected, false otherwise.
     */
    public boolean connected() {
        return connected;
    }

    /**
     * Connects to the OpenSearch cluster.
     * Creates a new client and waits for cluster health to be yellow or better.
     */
    public void connect() {
        destroy();

        return sb.toString();
    }

    /**
     * Checks if the client is connected to the witness service.
     *
     * @return true if connected
     */
    public boolean isConnected() {
        return connected && rpcHandle != null;
    }

    @Override
    public void close() {
        if (connected && rpcHandle != null) {
            try {

            if (n <= 0) {
                break;
            }
            i += n;
        }

        return i;
    }

    /* state values
     * 0 - not connected
     * 1 - connecting
     * 2 - run connected
     * 3 - connected
     * 4 - error
     */
    int state = 0;

    String name = "Transport" + id++;
    Thread thread;
    TransportException te;

    /**

                        return null;
                    }
                    // failure to connect
                    throw new SmbException("Tree disconnected while waiting for connection");
                }
                if (before == 2) {
                    // concurrently connected
                    return null;
                }

                if (log.isDebugEnabled()) {

            }
            ThreadUtil.sleep(200L);
        }
        if (!connected) {
            throw new IllegalStateException("Could not connect to the Samba server");
        }
    }

    @Override
    protected void tearDown() throws Exception {
        if (sambaServer != null) {
            sambaServer.stop();
        }
        super.tearDown();
    }

        this.connection = connection;
        requestProperties = new HashMap();
    }

    @Override
    public void connect() throws IOException {
        if (connected) {
            return;
        }
        connection.connect();
        connected = true;
    }

    private void handshake() throws IOException {
        if (handshakeComplete) {
            return;
        }

        try {
            conn.connect();
            fail("Should throw IOException when endpoint is not set");
        } catch (IOException e) {
            assertTrue(e.getMessage().contains("endpoint is blank"));
        }
    }

    /**
     * Test thread-safety of connect() method.
     * Multiple threads should be able to call connect() concurrently without issues.
     */

    public SmbTreeHandleImpl connectWrapException(final SmbResourceLocatorImpl loc) throws SmbException {
        try {
            return connect(loc);
        } catch (final SmbException se) {
            throw se;
        } catch (final IOException ioe) {
            throw new SmbException("Failed to connect to server", ioe);
        }
    }

    /**
     * @param loc
     * @return tree handle
     * @throws IOException