@Test
    final void testGetValuesByMetricName() {
        twoMetricsUniqueDimensions();
        Map<String, List<Entry<Point, UntypedMetric>>> values = bucket.getValuesByMetricName();
        assertEquals(2, values.size());
        assertEquals(4, values.get("nalle").size());
        assertEquals(4, values.get("nalle2").size());
    }
Functional tests for the value buckets, as implemented in the class Bucket,
and by extension the value store itself, UntypedValue.

@author Steinar Knutsen
container-core/src/test/java/com/yahoo/metrics/simple/BucketTest.java