def _create_simple_commit(self, message, out=None, ok_code=None, env=None, git_repo=None, tty_in=False):
git_repo = self.tmp_git_repo if git_repo is None else git_repo<EOL>environment = os.environ<EOL>if env:<EOL><INDENT>environment.update(env)<EOL><DEDENT>test_filename = u"<STR_LIT>" + str(uuid4())<EOL>touch(test_filename, _cwd=git_repo)<EOL>git("<STR_LIT>", test_filename, _cwd=git_repo)<EOL>if not ok_code:<EOL><INDENT>ok_code = [<NUM_LIT:0>]<EOL><DEDENT>git("<STR_LIT>", "<STR_LIT>", message, _cwd=git_repo, _err_to_out=True, _out=out, _tty_in=tty_in,<EOL>_ok_code=ok_code, _env=environment)<EOL>return test_filename<EOL>
Creates a simple commit with an empty test file.
            :param message: Commit message for the commit.