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| author | Ezio Melotti <ezio.melotti@gmail.com> | 2012-11-03 18:33:08 (GMT) |
|---|---|---|
| committer | Ezio Melotti <ezio.melotti@gmail.com> | 2012-11-03 18:33:08 (GMT) |
| commit | 0941d9fc64e1429454282667d0ca47740c141943 (patch) | |
| tree | aa3c88e98ea74d685a1dd2f5b8b0e3ff1e839b0d /Lib/test | |
| parent | dedfa9bfaec868af2099b44e68bd98ebd5075062 (diff) | |
| download | cpython-0941d9fc64e1429454282667d0ca47740c141943.zip cpython-0941d9fc64e1429454282667d0ca47740c141943.tar.gz cpython-0941d9fc64e1429454282667d0ca47740c141943.tar.bz2 | |
#12759: sre_parse now raises a proper error when the name of the group is missing. Initial patch by Serhiy Storchaka.
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_re.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py index 940ba39..5162d4e 100644 --- a/Lib/test/test_re.py +++ b/Lib/test/test_re.py @@ -161,11 +161,31 @@ class ReTests(unittest.TestCase): self.assertEqual(re.sub('x*', '-', 'abxd'), '-a-b-d-') self.assertEqual(re.sub('x+', '-', 'abxd'), 'ab-d') + def test_symbolic_groups(self): + re.compile('(?P<a>x)(?P=a)(?(a)y)') + re.compile('(?P<a1>x)(?P=a1)(?(a1)y)') + self.assertRaises(re.error, re.compile, '(?P<a>)(?P<a>)') + self.assertRaises(re.error, re.compile, '(?Px)') + self.assertRaises(re.error, re.compile, '(?P=)') + self.assertRaises(re.error, re.compile, '(?P=1)') + self.assertRaises(re.error, re.compile, '(?P=a)') + self.assertRaises(re.error, re.compile, '(?P=a1)') + self.assertRaises(re.error, re.compile, '(?P=a.)') + self.assertRaises(re.error, re.compile, '(?P<)') + self.assertRaises(re.error, re.compile, '(?P<>)') + self.assertRaises(re.error, re.compile, '(?P<1>)') + self.assertRaises(re.error, re.compile, '(?P<a.>)') + self.assertRaises(re.error, re.compile, '(?())') + self.assertRaises(re.error, re.compile, '(?(a))') + self.assertRaises(re.error, re.compile, '(?(1a))') + self.assertRaises(re.error, re.compile, '(?(a.))') + def test_symbolic_refs(self): self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a', 'xx') self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<', 'xx') self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g', 'xx') self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a a>', 'xx') + self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<>', 'xx') self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<1a1>', 'xx') self.assertRaises(IndexError, re.sub, '(?P<a>x)', '\g<ab>', 'xx') self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\g<b>', 'xx') |