1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
import re
import unittest
from django.test import SimpleTestCase
from django.utils import regex_helper
class NormalizeTests(unittest.TestCase):
def test_empty(self):
pattern = r""
expected = [('', [])]
result = regex_helper.normalize(pattern)
self.assertEqual(result, expected)
def test_escape(self):
pattern = r"\\\^\$\.\|\?\*\+\(\)\["
expected = [('\\^$.|?*+()[', [])]
result = regex_helper.normalize(pattern)
self.assertEqual(result, expected)
def test_group_positional(self):
pattern = r"(.*)-(.+)"
expected = [('%(_0)s-%(_1)s', ['_0', '_1'])]
result = regex_helper.normalize(pattern)
self.assertEqual(result, expected)
def test_group_noncapturing(self):
pattern = r"(?:non-capturing)"
expected = [('non-capturing', [])]
result = regex_helper.normalize(pattern)
self.assertEqual(result, expected)
def test_group_named(self):
pattern = r"(?P<first_group_name>.*)-(?P<second_group_name>.*)"
expected = [('%(first_group_name)s-%(second_group_name)s',
['first_group_name', 'second_group_name'])]
result = regex_helper.normalize(pattern)
self.assertEqual(result, expected)
def test_group_backreference(self):
pattern = r"(?P<first_group_name>.*)-(?P=first_group_name)"
expected = [('%(first_group_name)s-%(first_group_name)s',
['first_group_name'])]
result = regex_helper.normalize(pattern)
self.assertEqual(result, expected)
class LazyReCompileTests(SimpleTestCase):
def test_flags_with_pre_compiled_regex(self):
test_pattern = re.compile('test')
lazy_test_pattern = regex_helper._lazy_re_compile(test_pattern, re.I)
msg = 'flags must be empty if regex is passed pre-compiled'
with self.assertRaisesMessage(AssertionError, msg):
lazy_test_pattern.match('TEST')
|
