private boolean hasColumn(final List<Cell> kvs, final byte[] family, final byte[] qualifier) {
    for (Cell kv : kvs) {
      if (CellUtil.matchingFamily(kv, family) && CellUtil.matchingQualifier(kv, qualifier)) {
        return true;
      }
    }
    return false;
  }
Use a scanner to get the region info and then validate the results
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestScanner.java