import org.apache.hadoop.yarn.server.nodemanager.webapp.ContainerLogsPage.ContainersLogsBlock; //导入依赖的package包/类
@Test(timeout=30000)
public void testContainerLogDirs() throws IOException {
  File absLogDir = new File("target",
    TestNMWebServer.class.getSimpleName() + "LogDir").getAbsoluteFile();
  String logdirwithFile = absLogDir.toURI().toString();
  Configuration conf = new Configuration();
  conf.set(YarnConfiguration.NM_LOG_DIRS, logdirwithFile);
  NodeHealthCheckerService healthChecker = new NodeHealthCheckerService();
  healthChecker.init(conf);
  LocalDirsHandlerService dirsHandler = healthChecker.getDiskHandler();
  // Add an application and the corresponding containers
  RecordFactory recordFactory = RecordFactoryProvider.getRecordFactory(conf);
  String user = "nobody";
  long clusterTimeStamp = 1234;
  ApplicationId appId = BuilderUtils.newApplicationId(recordFactory,
      clusterTimeStamp, 1);
  Application app = mock(Application.class);
  when(app.getUser()).thenReturn(user);
  when(app.getAppId()).thenReturn(appId);
  ApplicationAttemptId appAttemptId = BuilderUtils.newApplicationAttemptId(
      appId, 1);
  ContainerId container1 = BuilderUtils.newContainerId(recordFactory, appId,
      appAttemptId, 0);
  List<File> files = null;
  files = ContainerLogsPage.ContainersLogsBlock.getContainerLogDirs(
      container1, dirsHandler);
  Assert.assertTrue(!(files.get(0).toString().contains("file:")));
}