/usr/lib/python3/dist-packages/plainbox/impl/test_decorators.py is in python3-plainbox 0.25-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright 2012-2014 Canonical Ltd.
# Written by:
# Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
#
# Checkbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3,
# as published by the Free Software Foundation.
#
# Checkbox is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Checkbox. If not, see <http://www.gnu.org/licenses/>.
"""
plainbox.impl.test_decorators
=============================
Test definitions for plainbox.impl.decorators module
"""
import sys
import unittest
from plainbox.impl.decorators import raises
from plainbox.impl.decorators import UndocumentedException
class RaisesTests(unittest.TestCase):
def test_adds_annotation_to_functions(self):
@raises(ValueError, IOError)
def func():
pass
self.assertEqual(
func.__annotations__['raise'], (ValueError, IOError))
def test_adds_annotation_to_methods(self):
class C:
@raises(ValueError, IOError)
def meth(self):
pass
self.assertEqual(
C.meth.__annotations__['raise'], (ValueError, IOError))
@unittest.skipIf(
sys.version_info[0:2] < (3, 4), "assertLogs not supported")
def test_logs_and_forwards_unknown_exceptions(self):
@raises(ValueError)
def func():
raise KeyError
with self.assertLogs('plainbox.bug', level='ERROR') as cm:
with self.assertRaises(KeyError):
func()
self.assertEqual(cm.output, [(
'ERROR:plainbox.bug:'
'Undeclared exception KeyError raised from func')])
def test_forwards_known_exceptions(self):
@raises(ValueError)
def func():
raise ValueError
with self.assertRaises(ValueError):
func()
def test_enforces_documentation(self):
with self.assertRaises(UndocumentedException):
@raises(ValueError)
def func():
"""
This function never fails
"""
raise ValueError
def test_doesnt_enforce_documentation_for_undocumented_things(self):
@raises(ValueError)
def func():
raise ValueError
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