protected ClusterMapConfig getClusterMapConfig() {
    Properties properties = new Properties();
    properties.setProperty(ClusterMapConfig.CLUSTERMAP_CLUSTER_NAME, "dev");
    properties.setProperty(ClusterMapConfig.CLUSTERMAP_DATACENTER_NAME, "local");
    properties.setProperty(ClusterMapConfig.CLUSTERMAP_HOST_NAME, "localhost");
    properties.setProperty(ClusterMapConfig.CLUSTERMAP_PORT, String.valueOf(3183));
    return new ClusterMapConfig(new VerifiableProperties(properties));
  }
Test {@link MySqlClusterAggregator#aggregateHostAccountStorageStatsWrappers}, but with different numbers of partitions
from different nodes.
@throws Exception
ambry-clustermap/src/test/java/com/github/ambry/clustermap/MySqlClusterAggregatorTest.java