public static void main(String[] args) throws Exception {
    int ret = ToolRunner.run(new IntegrationTestsDriver(), args);
    System.exit(ret);
  }
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