@Test (timeout = 120000)
public void testToTaskID() {

  TaskId tid = MRApps.toTaskID("task_1_2_r_3");
  assertEquals(1, tid.getJobId().getAppId().getClusterTimestamp());
  assertEquals(2, tid.getJobId().getAppId().getId());
  assertEquals(2, tid.getJobId().getId());
  assertEquals(TaskType.REDUCE, tid.getTaskType());
  assertEquals(3, tid.getId());
  tid = MRApps.toTaskID("task_1_2_m_3");
  assertEquals(TaskType.MAP, tid.getTaskType());
}