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- # Copyright (c) 2015-2017 Claudiu Popa <pcmanticore@gmail.com>
- # Copyright (c) 2015 Rene Zhang <rz99@cornell.edu>
- # Copyright (c) 2015 Steven Myint <hg@stevenmyint.com>
- # Copyright (c) 2015 Pavel Roskin <proski@gnu.org>
- # Copyright (c) 2015 Ionel Cristian Maries <contact@ionelmc.ro>
- # Copyright (c) 2016 Derek Gustafson <degustaf@gmail.com>
- # Copyright (c) 2018 Brian Shaginaw <brian.shaginaw@warbyparker.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
-
- """Tests for pylint.checkers.exceptions."""
-
- import sys
-
- import pytest
-
- import astroid
-
- from pylint.checkers import exceptions
- from pylint.testutils import CheckerTestCase, Message
-
-
- class TestExceptionsChecker(CheckerTestCase):
- """Tests for pylint.checkers.exceptions."""
-
- CHECKER_CLASS = exceptions.ExceptionsChecker
-
- # These tests aren't in the functional test suite,
- # since they will be converted with 2to3 for Python 3
- # and `raise (Error, ...)` will be converted to
- # `raise Error(...)`, so it beats the purpose of the test.
-
- @pytest.mark.skipif(sys.version_info[0] != 3,
- reason="The test should emit an error on Python 3.")
- def test_raising_bad_type_python3(self):
- node = astroid.extract_node('raise (ZeroDivisionError, None) #@')
- message = Message('raising-bad-type', node=node, args='tuple')
- with self.assertAddsMessages(message):
- self.checker.visit_raise(node)
-
- @pytest.mark.skipif(sys.version_info[0] != 2,
- reason="The test is valid only on Python 2.")
- def test_raising_bad_type_python2(self):
- nodes = astroid.extract_node('''
- raise (ZeroDivisionError, None) #@
- from something import something
- raise (something, None) #@
-
- raise (4, None) #@
- raise () #@
- ''')
- with self.assertNoMessages():
- self.checker.visit_raise(nodes[0])
- with self.assertNoMessages():
- self.checker.visit_raise(nodes[1])
-
- message = Message('raising-bad-type', node=nodes[2], args='tuple')
- with self.assertAddsMessages(message):
- self.checker.visit_raise(nodes[2])
- message = Message('raising-bad-type', node=nodes[3], args='tuple')
- with self.assertAddsMessages(message):
- self.checker.visit_raise(nodes[3])
-
- @pytest.mark.skipif(sys.version_info[0] != 3,
- reason="The test is valid only on Python 3.")
- def test_bad_exception_context_function(self):
- node = astroid.extract_node("""
- def function():
- pass
-
- try:
- pass
- except function as exc:
- raise Exception from exc #@
- """)
- message = Message('bad-exception-context', node=node)
- with self.assertAddsMessages(message):
- self.checker.visit_raise(node)
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