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gh-114709: Fix exceptions raised by posixpath.commonpath (#114710)

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Fix the exceptions raised by posixpath.commonpath

Raise ValueError, not IndexError when passed an empty iterable. Raise
TypeError, not ValueError when passed None.
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Sebastian Rittau 2024-02-18 09:24:58 +01:00 • committed by GitHub
parent f9154f8f23
commit 371c970886
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4 changed files with 11 additions and 3 deletions
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Lib/test/test_posixpath.py
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@ -703,7 +703,9 @@ class PosixPathTest(unittest.TestCase):
self.assertRaises(exc, posixpath.commonpath,
[os.fsencode(p) for p in paths])
self.assertRaises(TypeError, posixpath.commonpath, None)
self.assertRaises(ValueError, posixpath.commonpath, [])
self.assertRaises(ValueError, posixpath.commonpath, iter([]))
check_error(ValueError, ['/usr', 'usr'])
check_error(ValueError, ['usr', '/usr'])