def test_clear(self):
node_settings = MenbibNodeSettingsFactory.build()
user_settings = MenbibUserSettingsFactory(access_token='abcde')
node_settings.user_settings = user_settings
node_settings.save()
assert_true(user_settings.access_token)
user_settings.clear()
user_settings.save()
assert_false(user_settings.access_token)
