private void verifyInMemoryFlushSize(Region region) {
    assertEquals(
      ((CompactingMemStore) ((HStore) region.getStore(FAMILY1)).memstore).getInmemoryFlushSize(),
      ((CompactingMemStore) ((HStore) region.getStore(FAMILY3)).memstore).getInmemoryFlushSize());
  }
This test verifies the correctness of the Per Column Family flushing strategy when part of the
memstores are compacted memstores
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestWalAndCompactingMemStoreFlush.java