mirror of
https://fuchsia.googlesource.com/third_party/github.com/pylint-dev/pylint
synced 2024-09-21 16:19:21 +00:00
83 lines
3.4 KiB
Python
83 lines
3.4 KiB
Python
# 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
|
|
|
|
"""Tests for the pylint checker in :mod:`pylint.extensions.overlapping_exceptions
|
|
"""
|
|
|
|
from sys import version_info
|
|
import os
|
|
from os.path import join, dirname
|
|
import unittest
|
|
|
|
from pylint import checkers
|
|
from pylint.lint import PyLinter
|
|
from pylint.reporters import BaseReporter
|
|
from pylint.extensions.overlapping_exceptions import OverlappingExceptionsChecker
|
|
|
|
class TestReporter(BaseReporter):
|
|
|
|
def handle_message(self, msg):
|
|
self.messages.append(msg)
|
|
|
|
def on_set_current_module(self, module, filepath):
|
|
self.messages = []
|
|
|
|
|
|
class CheckOverlappingExceptions(unittest.TestCase):
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
cls._linter = PyLinter()
|
|
cls._linter.set_reporter(TestReporter())
|
|
checkers.initialize(cls._linter)
|
|
cls._linter.register_checker(OverlappingExceptionsChecker(cls._linter))
|
|
cls._linter.disable('I')
|
|
|
|
def test_overlapping_exceptions(self):
|
|
test = join(dirname(__file__), 'data', 'overlapping_exceptions.py')
|
|
self._linter.check([test])
|
|
msgs = self._linter.reporter.messages
|
|
|
|
expected = [
|
|
(13, 'Overlapping exceptions (SomeException and SomeException are the same)'),
|
|
(18, 'Overlapping exceptions (SomeException is an ancestor class of SubclassException)'),
|
|
(23, 'Overlapping exceptions (SomeException and AliasException are the same)'),
|
|
(28, 'Overlapping exceptions (AliasException is an ancestor class of SubclassException)'),
|
|
(34, 'Overlapping exceptions (SomeException and AliasException are the same)'),
|
|
(34, 'Overlapping exceptions (SomeException is an ancestor class of SubclassException)'),
|
|
(34, 'Overlapping exceptions (AliasException is an ancestor class of SubclassException)'),
|
|
(39, 'Overlapping exceptions (ArithmeticError is an ancestor class of FloatingPointError)'),
|
|
(44, 'Overlapping exceptions (ValueError is an ancestor class of UnicodeDecodeError)')
|
|
]
|
|
|
|
self.assertEqual(len(msgs), len(expected))
|
|
for msg, exp in zip(msgs, expected):
|
|
self.assertEqual(msg.msg_id, 'W0714')
|
|
self.assertEqual(msg.symbol, 'overlapping-except')
|
|
self.assertEqual(msg.category, 'warning')
|
|
self.assertEqual((msg.line, msg.msg), exp)
|
|
|
|
@unittest.skipIf(version_info < (3, 3), "not relevant to Python version")
|
|
def test_overlapping_exceptions_py33(self):
|
|
"""From Python 3.3 both IOError and socket.error are aliases for OSError."""
|
|
test = join(dirname(__file__), 'data', 'overlapping_exceptions_py33.py')
|
|
self._linter.check([test])
|
|
msgs = self._linter.reporter.messages
|
|
|
|
expected = [
|
|
(7, 'Overlapping exceptions (IOError and OSError are the same)'),
|
|
(12, 'Overlapping exceptions (socket.error and OSError are the same)'),
|
|
(17, 'Overlapping exceptions (socket.error is an ancestor class of ConnectionError)'),
|
|
]
|
|
|
|
self.assertEqual(len(msgs), len(expected))
|
|
for msg, exp in zip(msgs, expected):
|
|
self.assertEqual(msg.msg_id, 'W0714')
|
|
self.assertEqual(msg.symbol, 'overlapping-except')
|
|
self.assertEqual(msg.category, 'warning')
|
|
self.assertEqual((msg.line, msg.msg), exp)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|