private static void populateValuesOfSomeKeysInClientMsgsRegion(Integer port, String[] keys) {
    Region<Object, Object> msgsRegion =
        cache.getRegion(CacheServerImpl.generateNameForClientMsgsRegion(port));
    assertThat(msgsRegion).isNotNull();

    for (int i = 0; i < keys.length; i++) {
      logger.debug("HARQueueNewImplDUnit: populating " + deletedValues[i]);
      msgsRegion.put(keys[1], deletedValues[i]);
    }
  }
This test verifies that the memory footprint of the ha region queues is less when ha-overflow
is enabled (with an appropriate value of haCapacity) compared to when it is disabled, for the
same amount of data feed.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ha/HARQueueNewImplDistributedTest.java