@Before
  public void setup() throws IOException {
    TEST_UTIL = new HBaseTestingUtil();
    CONF = TEST_UTIL.getConfiguration();
    NettyAsyncFSWALConfigHelper.setEventLoopConfig(CONF, GROUP, NioSocketChannel.class);
    dir = TEST_UTIL.getDataTestDir("TestHRegion").toString();
    method = name.getMethodName();
    tableName = TableName.valueOf(method);
    CONF.set(CompactingMemStore.IN_MEMORY_FLUSH_THRESHOLD_FACTOR_KEY, String.valueOf(0.09));
    CONF.setLong(AbstractFSWAL.WAL_SYNC_TIMEOUT_MS, 10000);
  }
Basic stand-alone testing of HRegion. No clusters! A lot of the meta information for an HRegion
now lives inside other HRegions or in the HBaseMaster, so only basic testing is possible.
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java