RunWith(SpringRunner.class)
@SpringBootTest
public class ConnectionLookupClientIT {

   private static final String LAUSANNE = "Lausanne";
   private static final String ZURICH = "Zurich";

   @Autowired
   private ConnectionLookupClient client;

   @Test
   public void getConnections_shouldRetrieveConnections() {
       // given
       // ... nothing to setup

       // when
       Connections connections = client.getConnections(LAUSANNE, ZURICH);

       // then
       assertThat(connections).isNotNull();
       assertThat(connections.getConnections()).isNotEmpty();
   }
}