From abf275af5804c5f76fbe10c5cb1dd3d2e4b04c5b Mon Sep 17 00:00:00 2001 From: Serhiy Storchaka Date: Sat, 17 Sep 2016 01:29:58 +0300 Subject: Issue #22493: Warning message emitted by using inline flags in the middle of regular expression now contains a (truncated) regex pattern. Patch by Tim Graham. --- Lib/test/test_re.py | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'Lib/test/test_re.py') diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py index eb1aba39c3..6803e02c0e 100644 --- a/Lib/test/test_re.py +++ b/Lib/test/test_re.py @@ -1323,8 +1323,21 @@ class ReTests(unittest.TestCase): self.assertTrue(re.match('(?ixu) ' + upper_char, lower_char)) self.assertTrue(re.match('(?ixu) ' + lower_char, upper_char)) - with self.assertWarns(DeprecationWarning): - self.assertTrue(re.match(upper_char + '(?i)', lower_char)) + p = upper_char + '(?i)' + with self.assertWarns(DeprecationWarning) as warns: + self.assertTrue(re.match(p, lower_char)) + self.assertEqual( + str(warns.warnings[0].message), + 'Flags not at the start of the expression %s' % p + ) + + p = upper_char + '(?i)%s' % ('.?' * 100) + with self.assertWarns(DeprecationWarning) as warns: + self.assertTrue(re.match(p, lower_char)) + self.assertEqual( + str(warns.warnings[0].message), + 'Flags not at the start of the expression %s (truncated)' % p[:20] + ) def test_dollar_matches_twice(self): "$ matches the end of string, and just before the terminating \n" -- cgit v1.2.1