1. import unittest

  2. 

  3. from django.utils.ipv6 import clean_ipv6_address, is_valid_ipv6_address

  4. 

  5. 

  6. class TestUtilsIPv6(unittest.TestCase):

  7.     def test_validates_correct_plain_address(self):

  8.         self.assertTrue(is_valid_ipv6_address("fe80::223:6cff:fe8a:2e8a"))

  9.         self.assertTrue(is_valid_ipv6_address("2a02::223:6cff:fe8a:2e8a"))

  10.         self.assertTrue(is_valid_ipv6_address("1::2:3:4:5:6:7"))

  11.         self.assertTrue(is_valid_ipv6_address("::"))

  12.         self.assertTrue(is_valid_ipv6_address("::a"))

  13.         self.assertTrue(is_valid_ipv6_address("2::"))

  14. 

  15.     def test_validates_correct_with_v4mapping(self):

  16.         self.assertTrue(is_valid_ipv6_address("::ffff:254.42.16.14"))

  17.         self.assertTrue(is_valid_ipv6_address("::ffff:0a0a:0a0a"))

  18. 

  19.     def test_validates_incorrect_plain_address(self):

  20.         self.assertFalse(is_valid_ipv6_address("foo"))

  21.         self.assertFalse(is_valid_ipv6_address("127.0.0.1"))

  22.         self.assertFalse(is_valid_ipv6_address("12345::"))

  23.         self.assertFalse(is_valid_ipv6_address("1::2:3::4"))

  24.         self.assertFalse(is_valid_ipv6_address("1::zzz"))

  25.         self.assertFalse(is_valid_ipv6_address("1::2:3:4:5:6:7:8"))

  26.         self.assertFalse(is_valid_ipv6_address("1:2"))

  27.         self.assertFalse(is_valid_ipv6_address("1:::2"))

  28.         self.assertFalse(is_valid_ipv6_address("fe80::223: 6cff:fe8a:2e8a"))

  29.         self.assertFalse(is_valid_ipv6_address("2a02::223:6cff :fe8a:2e8a"))

  30. 

  31.     def test_validates_incorrect_with_v4mapping(self):

  32.         self.assertFalse(is_valid_ipv6_address("::ffff:999.42.16.14"))

  33.         self.assertFalse(is_valid_ipv6_address("::ffff:zzzz:0a0a"))

  34.         # The ::1.2.3.4 format used to be valid but was deprecated

  35.         # in rfc4291 section 2.5.5.1

  36.         self.assertTrue(is_valid_ipv6_address("::254.42.16.14"))

  37.         self.assertTrue(is_valid_ipv6_address("::0a0a:0a0a"))

  38.         self.assertFalse(is_valid_ipv6_address("::999.42.16.14"))

  39.         self.assertFalse(is_valid_ipv6_address("::zzzz:0a0a"))

  40. 

  41.     def test_cleans_plain_address(self):

  42.         self.assertEqual(clean_ipv6_address("DEAD::0:BEEF"), "dead::beef")

  43.         self.assertEqual(

  44.             clean_ipv6_address("2001:000:a:0000:0:fe:fe:beef"), "2001:0:a::fe:fe:beef"

  45.         )

  46.         self.assertEqual(

  47.             clean_ipv6_address("2001::a:0000:0:fe:fe:beef"), "2001:0:a::fe:fe:beef"

  48.         )

  49. 

  50.     def test_cleans_with_v4_mapping(self):

  51.         self.assertEqual(clean_ipv6_address("::ffff:0a0a:0a0a"), "::ffff:10.10.10.10")

  52.         self.assertEqual(clean_ipv6_address("::ffff:1234:1234"), "::ffff:18.52.18.52")

  53.         self.assertEqual(clean_ipv6_address("::ffff:18.52.18.52"), "::ffff:18.52.18.52")

  54.         self.assertEqual(clean_ipv6_address("::ffff:0.52.18.52"), "::ffff:0.52.18.52")

  55.         self.assertEqual(clean_ipv6_address("::ffff:0.0.0.0"), "::ffff:0.0.0.0")

  56. 

  57.     def test_unpacks_ipv4(self):

  58.         self.assertEqual(

  59.             clean_ipv6_address("::ffff:0a0a:0a0a", unpack_ipv4=True), "10.10.10.10"

  60.         )

  61.         self.assertEqual(

  62.             clean_ipv6_address("::ffff:1234:1234", unpack_ipv4=True), "18.52.18.52"

  63.         )

  64.         self.assertEqual(

  65.             clean_ipv6_address("::ffff:18.52.18.52", unpack_ipv4=True), "18.52.18.52"

  66.         )
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