class TestFailedToLoadPlugin(_ExceptionTest):
"""Tests for the FailedToLoadPlugin exception."""
err = exceptions.FailedToLoadPlugin(
plugin_name='plugin_name',
exception=ValueError('boom!'),
)
def load_plugin(self, verify_requirements=False):
"""Retrieve the plugin for this entry-point.
This loads the plugin, stores it on the instance and then returns it.
It does not reload it after the first time, it merely returns the
cached plugin.
:param bool verify_requirements:
Whether or not to make setuptools verify that the requirements for
the plugin are satisfied.
:returns:
Nothing
"""
if self._plugin is None:
LOG.info('Loading plugin "%s" from entry-point.', self.name)
try:
self._load(verify_requirements)
except Exception as load_exception:
LOG.exception(load_exception)
failed_to_load = exceptions.FailedToLoadPlugin(
plugin=self,
exception=load_exception,
)
LOG.critical(str(failed_to_load))
raise failed_to_load
def create_plugin_mock(raise_exception=False):
"""Create an auto-spec'd mock of a flake8 Plugin."""
plugin = mock.create_autospec(manager.Plugin, instance=True)
if raise_exception:
plugin.load_plugin.side_effect = exceptions.FailedToLoadPlugin(
plugin=mock.Mock(name='T101'),
exception=ValueError('Test failure'),
)
return plugin
class TestFailedToLoadPlugin(_ExceptionTest):
"""Tests for the FailedToLoadPlugin exception."""
err = exceptions.FailedToLoadPlugin(
plugin=plugins_manager.Plugin(
'plugin_name',
entrypoints.EntryPoint('plugin_name', 'os.path', None),
),
exception=ValueError('boom!'),
)
def load_plugin(self):
"""Retrieve the plugin for this entry-point.
This loads the plugin, stores it on the instance and then returns it.
It does not reload it after the first time, it merely returns the
cached plugin.
:returns:
Nothing
"""
if self._plugin is None:
LOG.info('Loading plugin "%s" from entry-point.', self.name)
try:
self._load()
except Exception as load_exception:
LOG.exception(load_exception)
failed_to_load = exceptions.FailedToLoadPlugin(
plugin=self, exception=load_exception)
LOG.critical(str(failed_to_load))
raise failed_to_load
"""Tests for the flake8.exceptions module."""
import pickle
import pytest
from flake8 import exceptions
@pytest.mark.parametrize(
'err',
(exceptions.FailedToLoadPlugin(
plugin_name='plugin_name',
exception=ValueError('boom!'),
), exceptions.InvalidSyntax(exception=ValueError('Unexpected token: $')),
exceptions.PluginRequestedUnknownParameters(
plugin={'plugin_name': 'plugin_name'},
exception=ValueError('boom!'),
),
exceptions.PluginExecutionFailed(
plugin={'plugin_name': 'plugin_name'},
exception=ValueError('boom!'),
)),
)
def test_pickleable(err):
"""Ensure that our exceptions can cross pickle boundaries."""
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
new_err = pickle.loads(pickle.dumps(err, protocol=proto))
assert str(err) == str(new_err)
orig_e = err.original_exception
new_e = new_err.original_exception
assert (type(orig_e), orig_e.args) == (type(new_e), new_e.args)
"""Tests for the flake8.exceptions module."""
import pickle
import pytest
from flake8 import exceptions
@pytest.mark.parametrize(
"err",
(
exceptions.FailedToLoadPlugin(
plugin_name="plugin_name",
exception=ValueError("boom!"),
),
exceptions.PluginRequestedUnknownParameters(
plugin={"plugin_name": "plugin_name"},
exception=ValueError("boom!"),
),
exceptions.PluginExecutionFailed(
plugin={"plugin_name": "plugin_name"},
exception=ValueError("boom!"),
),
),
)
def test_pickleable(err):
"""Ensure that our exceptions can cross pickle boundaries."""
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
new_err = pickle.loads(pickle.dumps(err, protocol=proto))
assert str(err) == str(new_err)
orig_e = err.original_exception
