text: import unittest
  from unittest.mock import Mock
  
  from receive_follow_servicer import ReceiveFollowServicer
  from services.proto import s2s_follow_pb2
  from services.proto import follows_pb2
  
  
  class ReceiveFollowServicerTest(unittest.TestCase):
  
      def setUp(self):
          self.servicer = ReceiveFollowServicer(Mock(), Mock(), Mock())
          self.servicer._users_util.parse_actor = lambda x: (
              'host', 'handle')
  
      def test_s2s_req_to_follows_req(self):
          req = s2s_follow_pb2.ReceivedFollowDetails()
          req.follower = 'b.com/@a'
          req.followed = 'c.com/@d'
          expected = follows_pb2.ForeignToLocalFollow()
          expected.follower_host = 'host'
          expected.follower_handle = 'handle'
          expected.followed = 'handle'
          self.assertEqual(self.servicer._s2s_req_to_follows_req(req), expected)
  