def test_clear_wo_oauth_settings(self, mock_revoke_access_token):
user_settings = GoogleDriveUserSettingsFactory(access_token='abcde')
user_settings.oauth_settings = None
user_settings.save()
node_settings = GoogleDriveNodeSettingsFactory.build()
node_settings.user_settings = user_settings
node_settings.save()
assert_false(user_settings.oauth_settings)
user_settings.clear()
user_settings.save()
assert_false(mock_revoke_access_token.called)
