void initiateType(MemoryCompactionPolicy compactionType, Configuration conf)
      throws IllegalArgumentIOException {
      compactor.initiateCompactionStrategy(compactionType, conf, "CF_TEST");
    }
Tests that the timeOfOldestEdit is updated correctly for the various edit operations in
memstore.
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompactingMemStore.java