@Test
@TestDir
@TestHdfs
public void createFileSystem() throws Exception {

  String dir = TestDirHelper.getTestDir().getAbsolutePath();
  String services = StringUtils.join(",",
    Arrays.asList(InstrumentationService.class.getName(),
                  SchedulerService.class.getName(),
                  FileSystemAccessService.class.getName()));
  Configuration hadoopConf = new Configuration(false);
  hadoopConf.set(CommonConfigurationKeysPublic.FS_DEFAULT_NAME_KEY, TestHdfsHelper.getHdfsConf().get(CommonConfigurationKeysPublic.FS_DEFAULT_NAME_KEY));
  createHadoopConf(hadoopConf);
  Configuration conf = new Configuration(false);
  conf.set("server.services", services);
  conf.set("server.hadoop.filesystem.cache.purge.timeout", "0");
  Server server = new Server("server", dir, dir, dir, dir, conf);
  server.init();
  FileSystemAccess hadoop = server.get(FileSystemAccess.class);
  FileSystem fs = hadoop.createFileSystem("u", hadoop.getFileSystemConfiguration());
  Assert.assertNotNull(fs);
  fs.mkdirs(new Path("/tmp/foo"));
  hadoop.releaseFileSystem(fs);
  try {
    fs.mkdirs(new Path("/tmp/foo"));
    Assert.fail();
  } catch (IOException ex) {
  } catch (Exception ex) {
    Assert.fail();
  }
  server.destroy();
}