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"""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_name="plugin_name",
exception=ValueError("boom!"),
),
exceptions.PluginExecutionFailed(
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)
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