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PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy.

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This commit is contained in:
Antoine Pitrou 2011-10-12 02:54:14 +02:00
parent 983b1434bd
commit 6b4883dec0
21 changed files with 689 additions and 454 deletions
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43
Lib/test/test_exceptions.py
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@ -46,8 +46,8 @@ class ExceptionTests(unittest.TestCase):
fp.close()
unlink(TESTFN)
self.raise_catch(IOError, "IOError")
self.assertRaises(IOError, open, 'this file does not exist', 'r')
self.raise_catch(OSError, "OSError")
self.assertRaises(OSError, open, 'this file does not exist', 'r')
self.raise_catch(ImportError, "ImportError")
self.assertRaises(ImportError, __import__, "undefined_module")
@ -192,11 +192,35 @@ class ExceptionTests(unittest.TestCase):
except NameError:
pass
else:
self.assertEqual(str(WindowsError(1001)), "1001")
self.assertEqual(str(WindowsError(1001, "message")),
"[Error 1001] message")
self.assertEqual(WindowsError(1001, "message").errno, 22)
self.assertEqual(WindowsError(1001, "message").winerror, 1001)
self.assertIs(WindowsError, OSError)
self.assertEqual(str(OSError(1001)), "1001")
self.assertEqual(str(OSError(1001, "message")),
"[Errno 1001] message")
# POSIX errno (9 aka EBADF) is untranslated
w = OSError(9, 'foo', 'bar')
self.assertEqual(w.errno, 9)
self.assertEqual(w.winerror, None)
self.assertEqual(str(w), "[Errno 9] foo: 'bar'")
# ERROR_PATH_NOT_FOUND (win error 3) becomes ENOENT (2)
w = OSError(0, 'foo', 'bar', 3)
self.assertEqual(w.errno, 2)
self.assertEqual(w.winerror, 3)
self.assertEqual(w.strerror, 'foo')
self.assertEqual(w.filename, 'bar')
self.assertEqual(str(w), "[Error 3] foo: 'bar'")
# Unknown win error becomes EINVAL (22)
w = OSError(0, 'foo', None, 1001)
self.assertEqual(w.errno, 22)
self.assertEqual(w.winerror, 1001)
self.assertEqual(w.strerror, 'foo')
self.assertEqual(w.filename, None)
self.assertEqual(str(w), "[Error 1001] foo")
# Non-numeric "errno"
w = OSError('bar', 'foo')
self.assertEqual(w.errno, 'bar')
self.assertEqual(w.winerror, None)
self.assertEqual(w.strerror, 'foo')
self.assertEqual(w.filename, None)
def testAttributes(self):
# test that exception attributes are happy
@ -274,11 +298,12 @@ class ExceptionTests(unittest.TestCase):
'start' : 0, 'end' : 1}),
]
try:
# More tests are in test_WindowsError
exceptionList.append(
(WindowsError, (1, 'strErrorStr', 'filenameStr'),
{'args' : (1, 'strErrorStr'),
'strerror' : 'strErrorStr', 'winerror' : 1,
'errno' : 22, 'filename' : 'filenameStr'})
'strerror' : 'strErrorStr', 'winerror' : None,
'errno' : 1, 'filename' : 'filenameStr'})
)
except NameError:
pass