flake8/tests/unit/test_checker_manager.py
2016-04-03 14:41:12 -05:00

27 lines
969 B
Python

"""Tests for the Manager object for FileCheckers."""
import errno
import mock
import pytest
from flake8 import checker
def test_oserrors_cause_serial_fall_back():
"""Verify that OSErrors will cause the Manager to fallback to serial."""
err = OSError(errno.ENOSPC, 'Ominous message about spaceeeeee')
style_guide = mock.Mock()
style_guide.options = mock.Mock(diff=False, jobs='4')
with mock.patch('multiprocessing.Queue', side_effect=err):
manager = checker.Manager(style_guide, [], [])
assert manager.using_multiprocessing is False
def test_oserrors_are_reraised():
"""Verify that OSErrors will cause the Manager to fallback to serial."""
err = OSError(errno.EAGAIN, 'Ominous message')
style_guide = mock.Mock()
style_guide.options = mock.Mock(diff=False, jobs='4')
with mock.patch('multiprocessing.Queue', side_effect=err):
with pytest.raises(OSError):
checker.Manager(style_guide, [], [])