class_docstr: Checks all functions of the FileCodeDriver
class_docstr_tok: ["Checks","all","functions","of","the","FileCodeDriver"]
code: def test_instantiation_fail_dne(self):
      failed = False
      try:
          _ = FileCodeDriver(
              root="nonexistant_path", datmo_directory_name=".datmo"
          )
      except PathDoesNotExist:
          failed = True
      assert failed
  
imports: from __future__ import division
  from __future__ import unicode_literals
  import os
  import time
  import shutil
  import tempfile
  import platform
  from io import open
  from datmo.core.controller.code.driver.file import FileCodeDriver
  from datmo.core.util.exceptions import PathDoesNotExist, FileIOError, CodeNotInitialized, UnstagedChanges, CommitDoesNotExist
label_desc: Use image node_id 4 for calling the TestFileCodeDriver obj's underlying member method code with example usage: obj.test_instantiation_fail_dne() without return types