compose/tests/unit/cli/errors_test.py

52 lines
1.7 KiB
Python

from __future__ import absolute_import
from __future__ import unicode_literals
import pytest
from docker.errors import APIError
from requests.exceptions import ConnectionError
from compose.cli import errors
from compose.cli.errors import handle_connection_errors
from tests import mock
@pytest.yield_fixture
def mock_logging():
with mock.patch('compose.cli.errors.log', autospec=True) as mock_log:
yield mock_log
def patch_call_silently(side_effect):
return mock.patch(
'compose.cli.errors.call_silently',
autospec=True,
side_effect=side_effect)
class TestHandleConnectionErrors(object):
def test_generic_connection_error(self, mock_logging):
with pytest.raises(errors.ConnectionError):
with patch_call_silently([0, 1]):
with handle_connection_errors(mock.Mock()):
raise ConnectionError()
_, args, _ = mock_logging.error.mock_calls[0]
assert "Couldn't connect to Docker daemon at" in args[0]
def test_api_error_version_mismatch(self, mock_logging):
with pytest.raises(errors.ConnectionError):
with handle_connection_errors(mock.Mock(api_version='1.22')):
raise APIError(None, None, b"client is newer than server")
_, args, _ = mock_logging.error.mock_calls[0]
assert "Docker Engine of version 1.10.0 or greater" in args[0]
def test_api_error_version_other(self, mock_logging):
msg = b"Something broke!"
with pytest.raises(errors.ConnectionError):
with handle_connection_errors(mock.Mock(api_version='1.22')):
raise APIError(None, None, msg)
mock_logging.error.assert_called_once_with(msg)