diff --git a/Lib/test/test_string.py b/Lib/test/test_string.py index 0be28fdb60..2d2e5a6754 100644 --- a/Lib/test/test_string.py +++ b/Lib/test/test_string.py @@ -475,6 +475,61 @@ class PieDelims(Template): self.assertEqual(s.substitute(dict(who='tim', what='ham')), 'tim likes to eat a bag of ham worth $100') + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_is_valid(self): + eq = self.assertEqual + s = Template('$who likes to eat a bag of ${what} worth $$100') + self.assertTrue(s.is_valid()) + + s = Template('$who likes to eat a bag of ${what} worth $100') + self.assertFalse(s.is_valid()) + + # if the pattern has an unrecognized capture group, + # it should raise ValueError like substitute and safe_substitute do + class BadPattern(Template): + pattern = r""" + (?P.*) | + (?P@{2}) | + @(?P[_a-z][._a-z0-9]*) | + @{(?P[_a-z][._a-z0-9]*)} | + (?P@) | + """ + s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what') + self.assertRaises(ValueError, s.is_valid) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_get_identifiers(self): + eq = self.assertEqual + raises = self.assertRaises + s = Template('$who likes to eat a bag of ${what} worth $$100') + ids = s.get_identifiers() + eq(ids, ['who', 'what']) + + # repeated identifiers only included once + s = Template('$who likes to eat a bag of ${what} worth $$100; ${who} likes to eat a bag of $what worth $$100') + ids = s.get_identifiers() + eq(ids, ['who', 'what']) + + # invalid identifiers are ignored + s = Template('$who likes to eat a bag of ${what} worth $100') + ids = s.get_identifiers() + eq(ids, ['who', 'what']) + + # if the pattern has an unrecognized capture group, + # it should raise ValueError like substitute and safe_substitute do + class BadPattern(Template): + pattern = r""" + (?P.*) | + (?P@{2}) | + @(?P[_a-z][._a-z0-9]*) | + @{(?P[_a-z][._a-z0-9]*)} | + (?P@) | + """ + s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what') + self.assertRaises(ValueError, s.get_identifiers) + if __name__ == '__main__': unittest.main()