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Code Issues Projects Releases Packages Wiki Activity Actions 10

Close issue #6210: Implement PEP 409

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This commit is contained in:
Nick Coghlan 2012-02-26 17:49:52 +10:00
parent cda6b6d60d
commit ab7bf2143e
15 changed files with 263 additions and 42 deletions
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29
Lib/test/test_exceptions.py
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@ -387,19 +387,36 @@ class ExceptionTests(unittest.TestCase):
def testChainingAttrs(self):
e = Exception()
self.assertEqual(e.__context__, None)
self.assertEqual(e.__cause__, None)
self.assertIsNone(e.__context__)
self.assertIs(e.__cause__, Ellipsis)
e = TypeError()
self.assertEqual(e.__context__, None)
self.assertEqual(e.__cause__, None)
self.assertIsNone(e.__context__)
self.assertIs(e.__cause__, Ellipsis)
class MyException(EnvironmentError):
pass
e = MyException()
self.assertEqual(e.__context__, None)
self.assertEqual(e.__cause__, None)
self.assertIsNone(e.__context__)
self.assertIs(e.__cause__, Ellipsis)
def testChainingDescriptors(self):
try:
raise Exception()
except Exception as exc:
e = exc
self.assertIsNone(e.__context__)
self.assertIs(e.__cause__, Ellipsis)
e.__context__ = NameError()
e.__cause__ = None
self.assertIsInstance(e.__context__, NameError)
self.assertIsNone(e.__cause__)
e.__cause__ = Ellipsis
self.assertIs(e.__cause__, Ellipsis)
def testKeywordArgs(self):
# test that builtin exception don't take keyword args,