new_contents: # -*- coding: utf-8 -*-
  from django.test import TestCase, override_settings
  
  from corehq.apps.hqwebapp.models import HashedPasswordLoginAttempt
  from corehq.apps.hqwebapp.utils import decode_password, extract_password
  
  HASHED_PASSWORD_MAPPING = {
      "sha256$1e2d5bc2hhMjU2JDFlMmQ1Yk1USXpORFUyZjc5MTI3PQ==f79127=": "123456",
      "sha256$8f5008c2hhMjU2JDhmNTAwOFlXSmpNVEl6TFE9PTRhNjBhOT0=4a60a9=": "abc123-",
      "sha256$4bf7cdc2hhMjU2JDRiZjdjZE1USXpRQ01rSlRFeTEzMGM4ZD0=130c8d=": "123@#$%12",
      "sha256$29df66c2hhMjU2JDI5ZGY2NklDRkFJeVFsWGlZcUtDbGZLeTFjYTQwN2VkPQ==a407ed=": " !@#$%^&*()_+-\\",
      "sha256$ad5e3ac2hhMjU2JGFkNWUzYTRLU0o0S1NxNEtTVjRLU3c0S1NqTVRJejQyNDgyOT0=424829=": u"उपकरण123"
  }
  
  
  @override_settings(ENABLE_PASSWORD_HASHING=True)
  class TestDecodePassword(TestCase):
      def test_decoder(self):
          for password_hash, password in HASHED_PASSWORD_MAPPING.items():
              self.assertFalse(HashedPasswordLoginAttempt.objects.filter(
                  username="username",
                  password_hash=password_hash
              ).exists())
              self.assertEqual(decode_password(password_hash, "username"), password)
              self.assertTrue(HashedPasswordLoginAttempt.objects.filter(
                  username="username",
                  password_hash=password_hash
              ).exists())
  
      def test_replay_attack(self):
          password_hash = "sha256$1e2d5bc2hhMjU2JDFlMmQ1Yk1USXpORFUyZjc5MTI3PQ==f79127="
          username = "james@007.com"
          HashedPasswordLoginAttempt.objects.create(
              username=username,
              password_hash=password_hash
          )
          self.assertEqual(decode_password(password_hash, username), '')
  
  
  class TestExtractPassword(TestCase):
      def test_invalid_regex_format(self):
          password_hash = "sha255$1e2d5bc2hhMjU2JDFlMmQ1Yk1USXpORFUyZjc5MTI3PQ==f79127="
          self.assertEqual(extract_password(password_hash), password_hash)
  
          password_hash = "sha255$1e2d5bc2hhMjU2JDFlMmQ1Yk1USXpORFUyZjc5MTI3PQ=="
          self.assertEqual(extract_password(password_hash), password_hash)
  
      def test_invalid_padding(self):
          password_hash = "sha256$1e456bc2hhMjU2JDFlMmQ1Yk1USXpORFUyZjc5MTI3PQ==f79127="
          self.assertEqual(extract_password(password_hash), '')
  
subject: Add test cases for decode and extract password