55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
import re
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import unittest
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from django.test import SimpleTestCase
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from django.utils import regex_helper
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class NormalizeTests(unittest.TestCase):
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def test_empty(self):
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pattern = r""
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expected = [('', [])]
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result = regex_helper.normalize(pattern)
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self.assertEqual(result, expected)
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def test_escape(self):
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pattern = r"\\\^\$\.\|\?\*\+\(\)\["
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expected = [('\\^$.|?*+()[', [])]
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result = regex_helper.normalize(pattern)
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self.assertEqual(result, expected)
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def test_group_positional(self):
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pattern = r"(.*)-(.+)"
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expected = [('%(_0)s-%(_1)s', ['_0', '_1'])]
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result = regex_helper.normalize(pattern)
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self.assertEqual(result, expected)
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def test_group_noncapturing(self):
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pattern = r"(?:non-capturing)"
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expected = [('non-capturing', [])]
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result = regex_helper.normalize(pattern)
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self.assertEqual(result, expected)
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def test_group_named(self):
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pattern = r"(?P<first_group_name>.*)-(?P<second_group_name>.*)"
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expected = [('%(first_group_name)s-%(second_group_name)s',
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['first_group_name', 'second_group_name'])]
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result = regex_helper.normalize(pattern)
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self.assertEqual(result, expected)
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def test_group_backreference(self):
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pattern = r"(?P<first_group_name>.*)-(?P=first_group_name)"
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expected = [('%(first_group_name)s-%(first_group_name)s',
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['first_group_name'])]
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result = regex_helper.normalize(pattern)
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self.assertEqual(result, expected)
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class LazyReCompileTests(SimpleTestCase):
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def test_flags_with_pre_compiled_regex(self):
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test_pattern = re.compile('test')
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lazy_test_pattern = regex_helper._lazy_re_compile(test_pattern, re.I)
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msg = 'flags must be empty if regex is passed pre-compiled'
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with self.assertRaisesMessage(AssertionError, msg):
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lazy_test_pattern.match('TEST')
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