text: # -*- coding: utf-8 -*-
  
  from django.http import HttpRequest
  from django.test import TestCase
  from .. import utils as util
  
  
  class IPv4TestCase(TestCase):
      """IP address Test"""
  
  
      def test_is_valid_ip(self):
          ip = '177.139.233.139'
          self.assertTrue(util.is_valid_ip(ip))
  
          ip = '3ffe:1900:4545:3:200:f8ff:fe21:67cf'
          self.assertTrue(util.is_valid_ip(ip))
  
      def test_is_invalid_ip(self):
          ip = '177.139.233.139x'
          self.assertFalse(util.is_valid_ip(ip))
  
          ip = '3ffe:1900:4545:3:200:f8ff:fe21:67cz'
          self.assertFalse(util.is_valid_ip(ip))
  
      def test_is_private_ip(self):
          ip = '127.0.0.1'
          self.assertTrue(util.is_private_ip(ip))
  
          ip = '::1/128'
          self.assertTrue(util.is_private_ip(ip))
  
      def test_is_public_ip(self):
          ip = '177.139.233.139'
          self.assertTrue(util.is_public_ip(ip))
  
          ip = '74dc::02ba'
          self.assertTrue(util.is_public_ip(ip))
  
      def test_is_loopback_ip(self):
          ip = '127.0.0.1'
          self.assertTrue(util.is_loopback_ip(ip))
  
          ip = '177.139.233.139'
          self.assertFalse(util.is_loopback_ip(ip))
  
          ip = '10.0.0.1'
          self.assertFalse(util.is_loopback_ip(ip))
  
          ip = '::1/128'
          self.assertTrue(util.is_loopback_ip(ip))
  
          ip = '74dc::02ba'
          self.assertFalse(util.is_loopback_ip(ip))
  
          ip = '2001:db8:'
          self.assertFalse(util.is_loopback_ip(ip))
  
      def test_http_request_meta_headers(self):
          request = HttpRequest()
          ip_str = '192.168.255.182, 10.0.0.0, 127.0.0.1, 198.84.193.157, 177.139.233.139,'
          request.META = { 'HTTP_X_FORWARDED_FOR': ip_str }
          value = util.get_request_meta(request, 'HTTP_X_FORWARDED_FOR')
          self.assertEqual(value, ip_str)
  
      def test_ips_from_strings(self):
          ip_str = '192.168.255.182, 198.84.193.157, 177.139.233.139 ,'
          result = util.get_ips_from_string(ip_str)
          self.assertEqual(result, (['192.168.255.182', '198.84.193.157', '177.139.233.139'], 3))
  
      def test_get_ip_info(self):
          ip = '127.0.0.1'
          result = util.get_ip_info(ip)
          self.assertTrue(result, (ip, False))
  
          ip = '10.0.01'
          result = util.get_ip_info(ip)
          self.assertTrue(result, (ip, False))
  
          ip = '74dc::02ba'
          result = util.get_ip_info(ip)
          self.assertTrue(result, (ip, True))
  