protected SetFile() {}
@Test
  public void testSetFile() throws Exception {
    FileSystem fs = FileSystem.getLocal(conf);
    try {
      RandomDatum[] data = generate(10000);
      writeTest(fs, data, FILE, CompressionType.NONE);
      readTest(fs, data, FILE);

      writeTest(fs, data, FILE, CompressionType.BLOCK);
      readTest(fs, data, FILE);
    } finally {
      fs.close();
    }
  }