'Defaults for authentication will fail since \'credentials.txt\' not
present in default subdir, as read from `os.environ[\'TWITTER\']`.'

def test_missingfile1(self):

    try:
        self.auth.load_creds()
    except OSError:
        pass
    except ValueError:
        pass
    except Exception as e:
        self.fail(('Unexpected    exception    thrown:    %s' % e))
    else:
        self.fail('OSError    exception    not    thrown.')
