import org.apache.hadoop.mapred.TaskCompletionEvent.Status; //导入依赖的package包/类
/**
 * test deprecated methods of TaskCompletionEvent
 */
@SuppressWarnings("deprecation")
@Test (timeout=5000)
public void testTaskCompletionEvent() {
  TaskAttemptID taid = new TaskAttemptID("001", 1, TaskType.REDUCE, 2, 3);
  TaskCompletionEvent template = new TaskCompletionEvent(12, taid, 13, true,
      Status.SUCCEEDED, "httptracker");
  TaskCompletionEvent testEl = TaskCompletionEvent.downgrade(template);
  testEl.setTaskAttemptId(taid);
  testEl.setTaskTrackerHttp("httpTracker");

  testEl.setTaskId("attempt_001_0001_m_000002_04");
  assertEquals("attempt_001_0001_m_000002_4",testEl.getTaskId());

  testEl.setTaskStatus(Status.OBSOLETE);
  assertEquals(Status.OBSOLETE.toString(), testEl.getStatus().toString());

  testEl.setTaskRunTime(20);
  assertEquals(testEl.getTaskRunTime(), 20);
  testEl.setEventId(16);
  assertEquals(testEl.getEventId(), 16);

}