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# Copyright (c) 2003-2016 LOGILAB S.A. (Paris, FRANCE).
# http://www.logilab.fr/ -- mailto:contact@logilab.fr
# 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 re
import unittest
import warnings
import astroid
from pylint import __pkginfo__
from pylint import utils
from pylint import interfaces
from pylint.checkers.utils import check_messages
class PyLintASTWalkerTest(unittest.TestCase):
class MockLinter(object):
def __init__(self, msgs):
self._msgs = msgs
def is_message_enabled(self, msgid):
return self._msgs.get(msgid, True)
class Checker(object):
def __init__(self):
self.called = set()
@check_messages('first-message')
def visit_module(self, module):
self.called.add('module')
@check_messages('second-message')
def visit_call(self, module):
raise NotImplementedError
@check_messages('second-message', 'third-message')
def visit_assignname(self, module):
self.called.add('assname')
@check_messages('second-message')
def leave_assignname(self, module):
raise NotImplementedError
def test_check_messages(self):
linter = self.MockLinter({'first-message': True,
'second-message': False,
'third-message': True})
walker = utils.PyLintASTWalker(linter)
checker = self.Checker()
walker.add_checker(checker)
walker.walk(astroid.parse("x = func()"))
self.assertEqual(set(['module', 'assname']), checker.called)
def test_deprecated_methods(self):
class Checker(object):
def __init__(self):
self.called = False
@check_messages('first-message')
def visit_assname(self, node):
self.called = True
linter = self.MockLinter({'first-message': True})
walker = utils.PyLintASTWalker(linter)
checker = Checker()
walker.add_checker(checker)
with warnings.catch_warnings(record=True):
warnings.simplefilter('always')
walker.walk(astroid.parse("x = 1"))
self.assertFalse(checker.called)
class RegexBlacklistTest(unittest.TestCase):
def test__basename_in_blacklist_re_match(self):
patterns = [re.compile(".*enchilada.*"), re.compile("unittest_.*")]
self.assertTrue(utils._basename_in_blacklist_re("unittest_utils.py", patterns))
self.assertTrue(utils._basename_in_blacklist_re("cheese_enchiladas.xml", patterns))
def test__basename_in_blacklist_re_nomatch(self):
patterns = [re.compile(".*enchilada.*"), re.compile("unittest_.*")]
self.assertFalse(utils._basename_in_blacklist_re("test_utils.py", patterns))
self.assertFalse(utils._basename_in_blacklist_re("enchilad.py", patterns))
if __name__ == '__main__':
unittest.main()
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