Fix SemanticFolsomMetricsTest::testRegisterOutstandingRequestsGauge

gistfile1.txt

  @Test
  public void testRegisterOutstandingRequestsGauge() {
    metrics.registerOutstandingRequestsGauge(new OutstandingRequestsGauge() {
      @Override
      public int getOutstandingRequests() {
        return 6;
      }

      @Override
      public String getHostName() {
        return "memcached1";
      }
    });

    metrics.registerOutstandingRequestsGauge(new OutstandingRequestsGauge() {
      @Override
      public int getOutstandingRequests() {
        return 7;
      }

      @Override
      public String getHostName() {
        return "memcached2";
      }
    });

    @SuppressWarnings("rawtypes")
    final SortedMap<MetricId, Gauge> allHostsGauge =
        registry.getGauges(
            (name, metric) -> "outstanding-requests".equals(name.getTags().get("what")) && "all".equals(name.getTags().get("host")));
    assertEquals(1, allHostsGauge.size());
    assertEquals(13L, allHostsGauge.values().iterator().next().getValue());

    @SuppressWarnings("rawtypes")
    final SortedMap<MetricId, Gauge> hostGauge =
        registry.getGauges(
            (name, metric) -> "outstanding-requests".equals(name.getTags().get("what")) && "memcached1".equals(name.getTags().get("host")));
    assertEquals(1, hostGauge.size());
    assertEquals(6L, hostGauge.values().iterator().next().getValue());
  }