@Override
  protected void processOptions(CommandLine cmd) {
    String testFilterString = cmd.getOptionValue(SHORT_REGEX_ARG);
    if (testFilterString != null) {
      intTestFilter.setPattern(testFilterString);
    }
  }
This class drives the Integration test suite execution. Executes all tests
having @Category(IntegrationTests.class) annotation against an already deployed distributed
cluster.
hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestsDriver.java