@Test
public void testEmptyGraphiteMetricQueryResult() {

        try {
                Instant fixedInstant = Instant.parse("2020-03-04T05:05:00Z");
                MetricQueryService metricQueryService = new MetricQueryService(httpClient);
                metricQueryService.queryMetricSource(metricSourceSinkConfig, metricFunctionsSpec, fixedInstant);
        } catch (MetricQueryServiceException e) {
                assertTrue(true);
        }
}