1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
# Copyright (c) 2003-2015 LOGILAB S.A. (Paris, FRANCE).
# http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program 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
# this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
import contextlib
import unittest
import astroid
from astroid import test_utils
from pylint.checkers import stdlib
from pylint.testutils import CheckerTestCase
@contextlib.contextmanager
def _add_transform(manager, node, transform, predicate=None):
manager.register_transform(node, transform, predicate)
try:
yield
finally:
manager.unregister_transform(node, transform, predicate)
class StdlibCheckerTest(CheckerTestCase):
CHECKER_CLASS = stdlib.StdlibChecker
def test_deprecated_no_qname_on_unexpected_nodes(self):
# Test that we don't crash on nodes which don't have
# a qname method. While this test might seem weird since
# it uses a transform, it's actually testing a crash that
# happened in production, but there was no way to retrieve
# the code for which this occurred (how an AssignAttr
# got to be the result of a function inference
# beats me..)
def infer_func(node, context=None):
new_node = astroid.AssignAttr()
new_node.parent = node
yield new_node
manager = astroid.MANAGER
transform = astroid.inference_tip(infer_func)
with _add_transform(manager, astroid.Name, transform):
node = test_utils.extract_node('''
call_something()
''')
with self.assertNoMessages():
self.checker.visit_call(node)
if __name__ == '__main__':
unittest.main()
|
