from __future__ import absolute_import import pytest from requests.exceptions import ConnectionError from compose.cli import errors from compose.cli.command import friendly_error_message from tests import mock from tests import unittest class FriendlyErrorMessageTestCase(unittest.TestCase): def test_dispatch_generic_connection_error(self): with pytest.raises(errors.ConnectionErrorGeneric): with mock.patch( 'compose.cli.command.call_silently', autospec=True, side_effect=[0, 1] ): with friendly_error_message(): raise ConnectionError()