@Test // issue #6
  public void testThatEmptyMetricsDoNotResultInBrokenBulkRequest() throws Exception {
    long connectionsBeforeReporting = getTotalHttpConnections();
    elasticsearchReporter.report();
    long connectionsAfterReporting = getTotalHttpConnections();

    org.assertj.core.api.Assertions.assertThat(connectionsAfterReporting)
        .isEqualTo(connectionsBeforeReporting);
  }
 private void reportAndRefresh() {
   elasticsearchReporter.report();
   client().admin().indices().prepareRefresh(indexWithDate).execute().actionGet();
 }