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Code Issues Projects Releases Packages Wiki Activity Actions 15

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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57
Lib/test/string_tests.py
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@ -1156,6 +1156,63 @@ class MixinStrUnicodeUserStringTest:
self.checkraises(ValueError, S, 'rpartition', '')
self.checkraises(TypeError, S, 'rpartition', None)
def test_none_arguments(self):
# issue 11828
s = 'hello'
self.checkequal(2, s, 'find', 'l', None)
self.checkequal(3, s, 'find', 'l', -2, None)
self.checkequal(2, s, 'find', 'l', None, -2)
self.checkequal(0, s, 'find', 'h', None, None)
self.checkequal(3, s, 'rfind', 'l', None)
self.checkequal(3, s, 'rfind', 'l', -2, None)
self.checkequal(2, s, 'rfind', 'l', None, -2)
self.checkequal(0, s, 'rfind', 'h', None, None)
self.checkequal(2, s, 'index', 'l', None)
self.checkequal(3, s, 'index', 'l', -2, None)
self.checkequal(2, s, 'index', 'l', None, -2)
self.checkequal(0, s, 'index', 'h', None, None)
self.checkequal(3, s, 'rindex', 'l', None)
self.checkequal(3, s, 'rindex', 'l', -2, None)
self.checkequal(2, s, 'rindex', 'l', None, -2)
self.checkequal(0, s, 'rindex', 'h', None, None)
self.checkequal(2, s, 'count', 'l', None)
self.checkequal(1, s, 'count', 'l', -2, None)
self.checkequal(1, s, 'count', 'l', None, -2)
self.checkequal(0, s, 'count', 'x', None, None)
self.checkequal(True, s, 'endswith', 'o', None)
self.checkequal(True, s, 'endswith', 'lo', -2, None)
self.checkequal(True, s, 'endswith', 'l', None, -2)
self.checkequal(False, s, 'endswith', 'x', None, None)
self.checkequal(True, s, 'startswith', 'h', None)
self.checkequal(True, s, 'startswith', 'l', -2, None)
self.checkequal(True, s, 'startswith', 'h', None, -2)
self.checkequal(False, s, 'startswith', 'x', None, None)
def test_find_etc_raise_correct_error_messages(self):
# issue 11828
s = 'hello'
x = 'x'
self.assertRaisesRegexp(TypeError, r'^find\(', s.find,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'^rfind\(', s.rfind,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'^index\(', s.index,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'^rindex\(', s.rindex,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'^count\(', s.count,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'^startswith\(', s.startswith,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'^endswith\(', s.endswith,
x, None, None, None)
class MixinStrUnicodeTest:
# Additional tests that only work with str and unicode.