public boolean isConnected() {
        return socket.isConnected();
    }
@Test
    void testUnresolvedInetSocketAddress() throws Exception {
        try (BlobClient client =
                new BlobClient(
                        InetSocketAddress.createUnresolved("localhost", getBlobServer().getPort()),
                        getBlobClientConfig())) {
            assertThat(client.isConnected()).isTrue();
        }
    }