@Test
public void testBlockingServerStreaming() throws Exception {

  Color request = Color.newBuilder().setRed(0.5f).build();
  ServerStream<Money> response = streamingCallable.call(request);
  List<Money> responseData = Lists.newArrayList(response);
  Money expected = Money.newBuilder().setCurrencyCode("USD").setUnits(127).build();
  Truth.assertThat(responseData).containsExactly(expected);
}