@Override
  public Hotspots.HotspotPullQueryTimestamp generateTimestampMessage(long timestamp) {
    Hotspots.HotspotPullQueryTimestamp.Builder responseBuilder = Hotspots.HotspotPullQueryTimestamp.newBuilder();
    responseBuilder.setQueryTimestamp(timestamp);
    return responseBuilder.build();
  }
@Test
  public void generateTimestampMessage_shouldMapTimestamp() {
    long timestamp = System.currentTimeMillis();
    HotspotPullQueryTimestamp result = underTest.generateTimestampMessage(timestamp);
    assertThat(result.getQueryTimestamp()).isEqualTo(timestamp);
  }