public void test_transport_client_namespace() {
Client client = checkClient("testTransportClient");
assertThat(client, instanceOf(org.elasticsearch.client.transport.TransportClient.class));
TransportClient tClient = (TransportClient) client;
ImmutableList<TransportAddress> adresses = tClient.transportAddresses();
assertThat("Nodes urls must not be empty...", adresses, not(emptyCollectionOf(TransportAddress.class)));
// Testing if we are really connected to a cluster node
assertThat("We should be connected at least to one node.", tClient.connectedNodes(), not(emptyCollectionOf(DiscoveryNode.class)));