49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
|
# Copyright (c) 2015 Cezar <celnazli@bitdefender.com>
|
||
|
|
# Copyright (c) 2015-2016 Claudiu Popa <pcmanticore@gmail.com>
|
||
|
|
|
||
|
|
# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
|
||
|
|
# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
|
||
|
|
|
||
|
|
import contextlib
|
||
|
|
|
||
|
|
import astroid
|
||
|
|
|
||
|
|
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 TestStdlibChecker(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 = astroid.extract_node('''
|
||
|
|
call_something()
|
||
|
|
''')
|
||
|
|
with self.assertNoMessages():
|
||
|
|
self.checker.visit_call(node)
|