@Override
  public void assertCounterGt(String name, long expected, BaseSource source) {
    long found = getCounter(name, source);
    assertTrue(name + " (" + found + ") should be greater than " + expected, found > expected);
  }
A helper class that will allow tests to get into hadoop2's metrics2 values.
hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/test/MetricsAssertHelperImpl.java