@Test public void parseTargetAddress_IpAndPortFromHost() {

  when(span.isNoop()).thenReturn(false);
  when(span.remoteIpAndPort("1.2.3.4", 9999)).thenReturn(true);
  HttpHost host = new HttpHost("1.2.3.4", 9999);
  TracingHttpAsyncClientBuilder.parseTargetAddress(host, span);
  verify(span).isNoop();
  verify(span).remoteIpAndPort("1.2.3.4", 9999);
  verifyNoMoreInteractions(span);
}