def test_sub(self):
exp = '(foo).*(bar)'
text = 'foo is the opposite of bar'
searched = re.search(exp, text)
group = Group(text, searched)
matches = group
group.sub('zaz', 1)
self.assertEqual('zaz', matches[0].replaced)
def test_sub_embedded(self):
exp = '(foo (bar)).*(foo bar)'
text = 'foo bar is grouped differently than foo bar'
searched = re.search(exp, text)
group = Group(text, searched)
matches = group
group.sub('zaz', 2)
self.assertEqual('zaz', matches[0][1].replaced)
expected = 'foo zaz is grouped differently than foo bar'
self.assertEqual(expected, group.str)