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 projectId = System.getenv("GCS_PROJECT_ID");
            final String endpoint = System.getenv("GCS_ENDPOINT");

         *
         * @throws IOException If the connection cannot be established
         */
        @Override
        public synchronized void connect() throws IOException {
            if (connected) {
                return;
            }
            final String endpoint = System.getenv().get("S3_ENDPOINT");
            final String accessKey = System.getenv().get("S3_ACCESS_KEY");

         *
         * @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();

            }
            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();
    }

        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.
     */

            }
            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();
    }

    }

    /**
     * Test: Verify connected flag is set correctly
     */
    @Test
    public void testConnectedFlag() {
        assertFalse("Initially not connected", fesenClient.connected());

        // After destroy, should be disconnected
        fesenClient.destroy();
        assertFalse("Should be disconnected after destroy", fesenClient.connected());
    }

    protected static final String OIC_REDIRECT_URL = "oic.redirect.url";

    /** Configuration key for OpenID Connect token server URL. */
    protected static final String OIC_TOKEN_SERVER_URL = "oic.token.server.url";

    /** Configuration key for OpenID Connect client secret. */
    protected static final String OIC_CLIENT_SECRET = "oic.client.secret";