private Tool doMROnTableTest(String data, int valueMultiplier) throws Exception {
    return doMROnTableTest(util, tn, FAMILY, data, args, valueMultiplier, -1);
  }
If there are invalid data rows as inputs, then only those rows should be ignored.
hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestImportTsv.java