public Collection<Map.Entry<Point, UntypedMetric>> getValuesForMetric(String metricName) {
        List<Map.Entry<Point, UntypedMetric>> singleMetric = new ArrayList<>();
        for (Map.Entry<Identifier, UntypedMetric> entry : values.entrySet()) {
            if (metricName.equals(entry.getKey().getName())) {
                singleMetric.add(locationValuePair(entry));
            }
        }
        return singleMetric;
    }
@Test
    final void testGetValuesForMetric() {
        twoMetricsUniqueDimensions();
        Collection<Entry<Point, UntypedMetric>> values = bucket.getValuesForMetric("nalle");
        assertEquals(4, values.size());
    }