private ExtendedCell createCell(byte[] qualifier, long ts, long sequenceId, byte[] value)
    throws IOException {
    return createCell(row, qualifier, ts, sequenceId, value);
  }
Test for HBASE-3492 - Test split on empty colfam (no store files).
@throws IOException When the IO operations fail.
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStore.java