class_docstr: Checks all functions of the GitCodeDriver
class_docstr_tok: ["Checks","all","functions","of","the","GitCodeDriver"]
code: def test_instantiation_fail_git_does_not_exist(self):
      failed = False
      try:
          _ = GitCodeDriver(
              filepath=self.temp_dir, execpath="nonexistant_execpath"
          )
      except GitExecutionError:
          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.git import GitCodeDriver, GitHostDriver
  from datmo.core.util.exceptions import CommitFailed, CommitDoesNotExist, PathDoesNotExist, GitExecutionError, DatmoFolderInWorkTree, UnstagedChanges
label_desc: Use image node_id 5 for calling the TestGitCodeDriver obj's underlying member method code with example usage: obj.test_instantiation_fail_git_does_not_exist() without return types