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startswith and endswith don't accept None as slice index. Patch by Torsten Becker. (closes #11828)

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This commit is contained in:
Jesus Cea 2011-04-20 17:09:23 +02:00
parent d07eaf177c
commit ac4515063c
8 changed files with 197 additions and 64 deletions
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62
Lib/test/test_bytes.py
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@ -459,6 +459,68 @@ def test_maketrans(self):
self.assertRaises(ValueError, self.type2test.maketrans, b'abc', b'xyzq')
self.assertRaises(TypeError, self.type2test.maketrans, 'abc', 'def')
def test_none_arguments(self):
# issue 11828
b = self.type2test(b'hello')
l = self.type2test(b'l')
h = self.type2test(b'h')
x = self.type2test(b'x')
o = self.type2test(b'o')
self.assertEqual(2, b.find(l, None))
self.assertEqual(3, b.find(l, -2, None))
self.assertEqual(2, b.find(l, None, -2))
self.assertEqual(0, b.find(h, None, None))
self.assertEqual(3, b.rfind(l, None))
self.assertEqual(3, b.rfind(l, -2, None))
self.assertEqual(2, b.rfind(l, None, -2))
self.assertEqual(0, b.rfind(h, None, None))
self.assertEqual(2, b.index(l, None))
self.assertEqual(3, b.index(l, -2, None))
self.assertEqual(2, b.index(l, None, -2))
self.assertEqual(0, b.index(h, None, None))
self.assertEqual(3, b.rindex(l, None))
self.assertEqual(3, b.rindex(l, -2, None))
self.assertEqual(2, b.rindex(l, None, -2))
self.assertEqual(0, b.rindex(h, None, None))
self.assertEqual(2, b.count(l, None))
self.assertEqual(1, b.count(l, -2, None))
self.assertEqual(1, b.count(l, None, -2))
self.assertEqual(0, b.count(x, None, None))
self.assertEqual(True, b.endswith(o, None))
self.assertEqual(True, b.endswith(o, -2, None))
self.assertEqual(True, b.endswith(l, None, -2))
self.assertEqual(False, b.endswith(x, None, None))
self.assertEqual(True, b.startswith(h, None))
self.assertEqual(True, b.startswith(l, -2, None))
self.assertEqual(True, b.startswith(h, None, -2))
self.assertEqual(False, b.startswith(x, None, None))
def test_find_etc_raise_correct_error_messages(self):
# issue 11828
b = self.type2test(b'hello')
x = self.type2test(b'x')
self.assertRaisesRegexp(TypeError, r'\bfind\b', b.find,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\brfind\b', b.rfind,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\bindex\b', b.index,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\brindex\b', b.rindex,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\bcount\b', b.count,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\bstartswith\b', b.startswith,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\bendswith\b', b.endswith,
x, None, None, None)
class BytesTest(BaseBytesTest):
type2test = bytes