mirror of https://github.com/django/django.git
58 lines
2.0 KiB
Python
58 lines
2.0 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 = [
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(
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"%(first_group_name)s-%(second_group_name)s",
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["first_group_name", "second_group_name"],
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)
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]
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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", ["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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