Assert.assertEquals(
Optional.of("druid/slowBroker"),
jsStrategy.getBrokerServiceName(
tieredBrokerConfig,
queryBuilder.aggregators(
ImmutableList.of(
new CountAggregatorFactory("count"),
new LongSumAggregatorFactory("longSum", "a"),
new DoubleSumAggregatorFactory("doubleSum", "b")
)